Is it possible to refresh the whole page using an updateprogress?

Is it possible to refresh the whole page using an updateprogress? - c#

I'm trying to implement a reinitialization button in my page which is linked to an UpdatePanel (AsyncPostBackTrigger). When i click on the button, it deals with an UpdateProgress.
The problem is that, because the reinitialization button is linked with an update panel, it cannot reinitialize what is outside of the UpdatePanel.
Is there a way to do some changes to the controls outside of the UpdatePanel without adding an UpdatePanel for the whole page ? In this case, i want to reinitialize the DropDownLists, the Textbox and the Repeater contained in the UpdatePanel.
How the page is rendered
ASPX code :
<body style="padding: 50px;">
<form id="form1" runat="server">
<asp:Label runat="server" ID="test"></asp:Label>
<asp:HiddenField runat="server" ID="AllDemandsTypeHfi"></asp:HiddenField>
<asp:ScriptManager runat="server" ID="ScriptManager"></asp:ScriptManager>
<asp:Panel runat="server" CssClass="panel-page-title">Création de demande</asp:Panel>
<asp:Panel runat="server" CssClass="panel-primary">
<asp:Panel runat="server" CssClass="panel-heading">Configuration de la recherche</asp:Panel>
<asp:Panel runat="server" CssClass="panel-body">
<asp:Table runat="server">
<asp:TableRow ID="BankRow">
<asp:TableCell>
<asp:Label runat="server">Banque : </asp:Label>
</asp:TableCell>
<asp:TableCell>
<asp:DropDownList runat="server" ID="BankDdl" AutoPostBack="true" OnSelectedIndexChanged="BankDdl_SelectedIndexChanged"></asp:DropDownList>
</asp:TableCell>
</asp:TableRow>
<asp:TableRow>
<asp:TableCell>
<asp:Label runat="server">Famille : </asp:Label>
</asp:TableCell>
<asp:TableCell>
<asp:DropDownList runat="server" ID="FamilyDdl" AutoPostBack="true" OnSelectedIndexChanged="FamilyDdl_SelectedIndexChanged"></asp:DropDownList>
</asp:TableCell>
</asp:TableRow>
<asp:TableRow>
<asp:TableCell>
<asp:Label runat="server">Motif : </asp:Label>
</asp:TableCell>
<asp:TableCell>
<asp:DropDownList runat="server" ID="MotiveDdl" AutoPostBack="true" OnSelectedIndexChanged="MotiveDdl_SelectedIndexChanged"></asp:DropDownList>
</asp:TableCell>
</asp:TableRow>
<asp:TableRow>
<asp:TableCell>
<asp:Label runat="server">Sous-motif : </asp:Label>
</asp:TableCell>
<asp:TableCell>
<asp:DropDownList runat="server" ID="SubmotiveDdl" AutoPostBack="true" OnSelectedIndexChanged="SubmotiveDdl_SelectedIndexChanged"></asp:DropDownList>
</asp:TableCell>
</asp:TableRow>
<asp:TableRow>
<asp:TableCell>
<asp:Label runat="server">Mots-clés : </asp:Label>
</asp:TableCell>
<asp:TableCell>
<asp:TextBox runat="server" ID="KeywordsTbx" data-target="#modalSuggestions" data-toggle="modal"></asp:TextBox>
<div id="keywordsTbxSuggestions"></div>
<asp:HiddenField runat="server" ID="KeywordsSearchHfi"></asp:HiddenField>
</asp:TableCell>
</asp:TableRow>
</asp:Table>
<br />
<asp:Button runat="server" ID="ResearchBtn" Text="Rechercher" OnClick="ResearchBtn_Click" />
<asp:Button runat="server" ID="ReinitializeBtn" Text="Réinitialiser" OnClick="ReinitializeBtn_Click" />
</asp:Panel>
</asp:Panel>
<br />
<asp:UpdatePanel runat="server" ID="ResultsUpnl" ChildrenAsTriggers="true" UpdateMode="Conditional">
<ContentTemplate>
<asp:Panel runat="server" CssClass="panel-primary">
<asp:Panel runat="server" CssClass="panel-heading">Résultat de la recherche </asp:Panel>
<asp:Panel runat="server" CssClass="panel-body">
<asp:Label runat="server" ID="ResultsLb" Text="Veuillez sélectionner les critères de recherche, puis cliquer sur Rechercher."></asp:Label>
<asp:Repeater runat="server" ID="ResultsRpt">
<HeaderTemplate>
<asp:Label runat="server" Text="<b>Type de demande</b>"></asp:Label>
<table>
</HeaderTemplate>
<ItemTemplate>
<asp:Panel runat="server">
<asp:HyperLink runat="server" NavigateUrl='<%# Eval("Link") %>' Text='<%# Eval("Title") %>' Target="_blank"></asp:HyperLink>
</asp:Panel>
</ItemTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
</asp:Repeater>
</asp:Panel>
</asp:Panel>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="ResearchBtn" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="ReinitializeBtn" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
<asp:UpdateProgress ID="UppDemandsResult" runat="server" DisplayAfter="0">
<ProgressTemplate>
<div style="text-align: center;">
<table style="width: 100%;">
<tr>
<td>
<Loader:LoaderComponent ID="UcLoadingProgess" runat="server" />
</td>
</tr>
</table>
</div>
</ProgressTemplate>
</asp:UpdateProgress>
</form>
</body>
Code-behind :
private void HandleReinitialization()
{
this.ResultsLb.Text = DemandCreationConstants.ResearchDefaultText;
this.familyDdlSelectedValue = string.Empty;
this.motiveDdlSelectedValue = string.Empty;
this.submotiveDdlSelectedValue = string.Empty;
this.LoadFamilies(true);
this.LoadMotives(false);
this.LoadSubmotives(false);
this.ResultsRpt.DataSource = null;
this.ResultsRpt.DataBind();
this.KeywordsSearchHfi.Value = string.Empty;
this.KeywordsTbx.Text = string.Empty;
LogServiceInstance.Debug("L'utilisateur " + UserSession.UserLogOn + " a réinitialisé la recherche.");
}
HandleReinitialization is launched by the event ReinitializeBtn_Click.

If understand you correctly, you will need to create UpdatePanel2 and add whatever controls into it, then in the button Click() method of the first UpdatePanel1 invoke the Update() method.
UpdatePanel2.Update();
Update:
Make sure you set the UpdateMode of UpdatePanel2 to "Conditional"
<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
<ContentTemplate>
// Your controls
</ContentTemplate>
</asp:UpdatePanel>

Related

Why my button code doesn't work after using AJAX in ASP.NET?

I have a button in asp.net to clear textboxes and I used ajax as below:
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Button ID="Button2" runat="server" Font-Bold="False" Font-Names="Tahoma" Font-Size="16px" ForeColor="DarkRed" Height="40px" OnClick="Button2_Click" Text="Clear Form" Width="165px" />
</ContentTemplate>
</asp:UpdatePanel>
As well, this button has following C# code:
protected void Button2_Click(object sender, EventArgs e)
{
txtFirstName.Text = string.Empty;
txtLastName.Text = string.Empty;
txtEmail.Text = string.Empty;
txtSubject.Text = string.Empty;
txtMessage.Text = string.Empty;
}
However, foregoing C# code doesn't work when I execute this program!; In other words, textboxes don't clear after I click on button!
Please tell me why it happens?!

I have tried and the button code is working
.aspx code
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:TextBox ID="txtFirstName" runat="server"></asp:TextBox>
<asp:TextBox ID="txtLastName" runat="server"></asp:TextBox>
<asp:TextBox ID="txtEmail" runat="server"></asp:TextBox>
<asp:TextBox ID="txtSubject" runat="server"></asp:TextBox>
<asp:TextBox ID="txtMessage" runat="server"></asp:TextBox>
<asp:Button ID="Button2" runat="server" Font-Bold="False" Font-Names="Tahoma" Font-Size="16px" ForeColor="DarkRed" Height="40px" OnClick="Button2_Click" Text="Clear Form" Width="165px" />
</ContentTemplate>
</asp:UpdatePanel>
</div>
.aspx.cs page coding
protected void Button2_Click(object sender, EventArgs e)
{
txtFirstName.Text = string.Empty;
txtLastName.Text = string.Empty;
txtEmail.Text = string.Empty;
txtSubject.Text = string.Empty;
txtMessage.Text = string.Empty;
}

You need to modify your updatepanel.Kindly place all your Label and TextBox Control inside Update Panel and Button Events outside your UpdatePanel and add Trigger of your button ID.
AsyncPostBackTrigger or PostBackTrigger
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
// HERE YOUR TEXTBOX AND LABEL CONTROLS
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button2"
</Triggers>
</asp:UpdatePanel>
<asp:Button ID="Button2" runat="server" Font-Bold="False" Font-Names="Tahoma" Font-Size="16px" ForeColor="DarkRed" Height="40px" OnClick="Button2_Click" Text="Clear Form" Width="165px" />

You should place the Textboxes inside update panel as
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:TextBox ID="txtFirstName" runat="server"></asp:TextBox>
<asp:TextBox ID="txtLastName" runat="server"></asp:TextBox>
<asp:TextBox ID="txtEmail" runat="server"></asp:TextBox>
<asp:TextBox ID="txtSubject" runat="server"></asp:TextBox>
<asp:TextBox ID="txtMessage" runat="server"></asp:TextBox>
<asp:Button ID="Button2" runat="server" Font-Bold="False" Font-Names="Tahoma" Font-Size="16px" ForeColor="DarkRed" Height="40px" OnClick="Button2_Click" Text="Clear Form" Width="165px" />
</ContentTemplate>
</asp:UpdatePanel>

PageRequestManagerServerErrorException object reference not set... ASP.net AJAX

Is anyone able to understand why m I getting this error?
Uncaught Sys.WebForms.PageRequestManagerServerErrorException: Sys.WebForms.PageRequestManagerServerErrorException: Object reference not set to an instance of an object.
SOURCE: ScriptResource.axd
So here is the thing...
I have a button when first clicked (after first site access) works, but after that I always get the error. I tried to debug the subject by putting a debug point at the first line in Page_Load event but its not even getting there.
The error is showing before that on that ScriptResources.axd file which is made of javascript so i tried to debug it but i don't really understand what is going on so i couldn't find the problem.
From what i can understand, somehow, when i first click the button, i must not being initialize some controll i should, but i just can't figure it out.
button id = btnFiltra
HTML
<body>
<form id="form1" runat="server">
<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
</asp:ToolkitScriptManager>
<script type="text/javascript">
Sys.Application.add_load(onPageLoad);
</script>
<asp:Panel runat="server" ID="pHeader" CssClass="PVHeaderBackground">
<img alt="Planview" src="Images/logo_planview.png" class="PVLogoBackImgleft"/>
<div id="PTLogo" class="PTLogosRight">
<img src="Images/logo_meo_preto.png" alt="Meo" style="vertical-align:middle; margin-top:auto; margin-bottom:auto"/>
<img src="Images/Ptlogo.jpg" alt="PT" style="height:50px; width:auto; margin-left:10px; vertical-align:middle;margin-top:auto; margin-bottom:auto"/>
</div>
</asp:Panel>
<asp:UpdatePanel ID="upBody" runat="server" UpdateMode="Conditional" >
<ContentTemplate>
<asp:Panel runat="server" ID="pOpcoesGlobais" >
<asp:Button ID="btnExtrair" runat="server" OnClientClick="umProjetoApenas()" OnClick="btnExtrair_OnClick" Text="Extrair Dados"/>
<asp:Button ID="btnAtualizar" runat="server" OnClientClick="umProjetoApenas()" OnClick="btnAtualizar_OnClick" Text="Atualizar Dados"/>
</asp:Panel>
<asp:Panel runat="server" ID="pTarefaOkFaturar" Visible="true" style="display:none;" Width="100%" Height="100%" >
<div style="width:100%; height:10%">
<b>Ao confirmar que a tarefa pode ser faturada, todas as parcelas sem documento passarão a ser faturadas de forma automática.</b>
</div>
<div style="width:100%;">
<asp:GridView runat="server" ID="gvCheckParcelas" CssClass="PVPortlet"></asp:GridView>
</div>
<div style="width:100%;position: absolute;bottom: 10px;">
<asp:Button ID="btnOkFaturarCancelar" runat="server" Text="Cancelar" OnClick="btnOkFaturarCancelar_OnClick" style="float:left;margin-left: 10px;"/>
<asp:Button ID="btnOkFaturarOk" runat="server" Text="Concordo" OnClick="btnOkFaturarOk_OnClick" style="float:right;margin-right: 10px;" />
</div>
</asp:Panel>
<asp:Panel runat="server" ID="pBody">
<asp:UpdatePanel ID="upFiltros" runat="server">
<ContentTemplate>
<asp:Label ID="lCliente" runat="server" Text="Cliente"/>
<asp:TextBox ID="txbCliente" runat="server"/>
<asp:PopupControlExtender ID="txbCliente_PopupControlExtender" runat="server" Enabled="True" ExtenderControlID="" TargetControlID="txbCliente"
PopupControlID="pPopUpCliente" Position="Bottom" >
</asp:PopupControlExtender>
<asp:Panel ID="pPopUpCliente" runat="server" Height="116px" BorderStyle="Solid" BorderWidth="2px" Direction="LeftToRight" ScrollBars="Auto" BackColor="#CCCCCC" Style="display: none" >
<asp:CheckBoxList ID="cblCliente" runat="server" DataTextField="DESCRICAO" onChange="uncheckOnTodos(this)" DataValueField="ID" AutoPostBack="False" AppendDataBoundItems="True">
<asp:ListItem Text="Todos" Value="all" Selected="False"></asp:ListItem>
</asp:CheckBoxList>
</asp:Panel>
<asp:Label ID="lPedido" runat="server" Text="Pedido"/>
<asp:TextBox ID="txbPedido" runat="server"/>
<asp:PopupControlExtender ID="txbPedido_PopupControlExtender" runat="server"
Enabled="True" ExtenderControlID="" TargetControlID="txbPedido"
PopupControlID="pPopUpPedido" Position="Bottom" >
</asp:PopupControlExtender>
<asp:Panel ID="pPopUpPedido" runat="server" Height="116px"
BorderStyle="Solid" BorderWidth="2px" Direction="LeftToRight"
ScrollBars="Auto" BackColor="#CCCCCC" Style="display: none" >
<asp:CheckBoxList ID="cblPedido" runat="server"
DataTextField="DESCRICAO" onChange="uncheckOnTodos(this)"
DataValueField="ID" AutoPostBack="False" AppendDataBoundItems="True">
<asp:ListItem Text="Todos" Value="all" Selected="False"></asp:ListItem>
</asp:CheckBoxList>
</asp:Panel>
<asp:Label ID="lProjeto" runat="server" Text="Projeto"/>
<asp:TextBox ID="txbProjeto" runat="server"/>
<asp:PopupControlExtender ID="txbProjeto_PopupControlExtender" runat="server"
Enabled="True" ExtenderControlID="" TargetControlID="txbProjeto"
PopupControlID="pPopUpProjeto" Position="Bottom" >
</asp:PopupControlExtender>
<asp:Panel ID="pPopUpProjeto" runat="server" Height="116px"
BorderStyle="Solid" BorderWidth="2px" Direction="LeftToRight" ScrollBars="Auto" BackColor="#CCCCCC" Style="display: none" >
<asp:CheckBoxList ID="cblProjeto" runat="server"
DataTextField="DESCRICAO" onChange="uncheckOnTodos(this)"
DataValueField="ID" AutoPostBack="False" AppendDataBoundItems="True">
<asp:ListItem Text="Todos" Value="all" Selected="False"></asp:ListItem>
</asp:CheckBoxList>
</asp:Panel>
<asp:Button runat="server" ID="btnFiltra" Text="Pesquisar"
onclick="btnFiltra_Click"/>
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdateProgress ID="uprgTarefas" runat="server" AssociatedUpdatePanelID="upTarefas" DisplayAfter="2000" >
<ProgressTemplate>Loading...</ProgressTemplate>
</asp:UpdateProgress>
<asp:UpdatePanel ID="upTarefas" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnFiltra" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="btnAtualizar" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="btnExtrair" EventName="Click" />
</Triggers>
<ContentTemplate>
<div id="dTabelaTarefaHeader" class="PVPortletHeader">
<div id="dTabelaTarefasOpcoes" class="PVPortletHeaderOpcoes"></div>
<b>Tarefas Faturação</b>
</div>
<asp:Panel runat="server" ID="pgvTarefasEmpty" Visible="false">
<table class="PVPortlet">
<tbody>
<tr>
<th></th>
<th>ID</th>
<th>Projeto</th>
<th>Tarefa</th>
<th>Cliente</th>
<th>Pedido</th>
<th>Inicio</th>
<th>Fim</th>
<th>Faturar?</th>
<th>Planeado</th>
<th>Remanescente</th>
<th>Faturado</th>
<th>Entidade</th>
</tr>
<tr>
<td colspan="13">Sem dados...</td>
</tr>
</tbody>
</table>
</asp:Panel>
<asp:GridView ID="gvTarefas" runat="server" AutoGenerateSelectButton="true"
AutoGenerateColumns="false" CssClass="PVPortlet" SelectedRowStyle-CssClass="PVPortletSelectedRow"
onselectedindexchanged="gvTarefas_SelectedIndexChanged" DataKeyNames="ID"
OnRowCreated="gvTarefas_OnRowCreated">
<columns>
<asp:BoundField DataField="ID" HtmlEncode="false" HeaderText="ID" />
<asp:BoundField DataField="Projeto" HtmlEncode="false" HeaderText="Projeto" />
<asp:BoundField DataField="Tarefa" HtmlEncode="false" HeaderText="Tarefa" />
<asp:BoundField DataField="Cliente" HtmlEncode="false" HeaderText="Cliente" />
<asp:BoundField DataField="Pedido" HtmlEncode="false" HeaderText="Pedido" />
<asp:BoundField DataField="DataInicio" DataFormatString="{0:dd-MM-yyyy}" HeaderText="Inicio" />
<asp:BoundField DataField="DataFim" DataFormatString="{0:dd-MM-yyyy}" HeaderText="Fim" />
<asp:TemplateField HeaderText="Faturar?">
<ItemTemplate>
<asp:CheckBox runat="server" ID="cbFaturar" Checked='<%# Eval("ProntoAFaturar") %>' AutoPostBack="true" OnCheckedChanged="cb_OnCheckedChanged"/>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="Planeado" HeaderText="Planeado" />
<asp:BoundField DataField="Remanescente" HeaderText="Remanescente" />
<asp:BoundField DataField="Faturado" HeaderText="Faturado" />
<utl:CompositeBoundField HeaderText="Entidade" DataField="EntidadeResponsavel.Descricao" />
</columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
<br />
<br />
<asp:UpdateProgress ID="uprgParcelas" runat="server"
AssociatedUpdatePanelID="upParcelas" DisplayAfter="2000">
<ProgressTemplate>Loading...</ProgressTemplate>
</asp:UpdateProgress>
<asp:UpdatePanel ID="upParcelas" runat="server" UpdateMode="Conditional">
<Triggers>
<asp:asyncpostbacktrigger controlid="gvTarefas"
EventName="SelectedIndexChanged" />
<asp:asyncpostbacktrigger controlid="gvParcelas" EventName="RowEditing" />
</Triggers>
<ContentTemplate>
<div ID="dTabelaParcelasHeader" class="PVPortletHeader">
<b>Parcelas Faturação</b>
</div>
<asp:Panel ID="pgvParcelasEmpty" runat="server" Visible="false">
<table class="PVPortlet">
<tbody>
<tr>
<th></th>
<th>ID</th>
<th>Auto</th>
<th>DataEnvio</th>
<th>Descrição</th>
<th>Valor</th>
</tr>
<tr>
<td colspan="6">Sem dados...</td>
</tr>
</tbody>
</table>
</asp:Panel>
<asp:GridView ID="gvParcelas" runat="server" AutoGenerateColumns="false" AutoGenerateDeleteButton="true" AutoGenerateEditButton="true"AutoGenerateSelectButton="true" CssClass="PVPortlet" DataKeyNames="ID" OnRowCancelingEdit="gvParcelas_OnRowCancelingEdit"
OnRowCommand="gvParcelas_OnRowCommand" OnRowCreated="gvParcelas_OnRowCreated" OnRowDeleting="gvParcelas_OnRowDeleting" OnRowEditing="gvParcelas_RowEditing" OnRowUpdating="gvParcelas_OnRowUpdating" Visible="false" SelectedRowStyle-CssClass="PVPortletSelectedRow"
OnSelectedIndexChanged="obterDocumento_OnSeacrh" ShowFooter="True">
<Columns>
<asp:TemplateField HeaderText="ID">
<EditItemTemplate>
<asp:Label ID="lIDParcela" runat="server" Text='<%# Eval("ID") %>' />
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lIDParcela" runat="server" Text='<%# Eval("ID") %>' />
</ItemTemplate>
<FooterTemplate>
<asp:Button ID="btnParcelaNovo" runat="server" CommandName="Insert" Text="Novo" />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Auto">
<EditItemTemplate>
<asp:CheckBox ID="cbAuto" runat="server" Checked='<%# Eval("Auto") %>' />
</EditItemTemplate>
<ItemTemplate>
<asp:CheckBox ID="cbAuto" runat="server" Checked='<%# Eval("Auto") %>' Enabled="false"/>
</ItemTemplate>
<FooterTemplate>
<asp:CheckBox ID="cbAuto" runat="server" Checked="true" />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="DataEnvio">
<EditItemTemplate>
<asp:TextBox ID="txbDataEnvio" runat="server" Text='<%# Eval("DataEnvio","{0:dd-MM-yyyy}") %>' />
<asp:CalendarExtender ID="txbDataEnvio_CalendarExtender" runat="server"
DefaultView="Months" Enabled="True" Format="MM-yyyy" PopupPosition="BottomLeft"
TargetControlID="txbDataEnvio">
</asp:CalendarExtender>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lDataEnvio" runat="server"
Text='<%# Eval("DataEnvio","{0:dd-MM-yyyy}") %>' />
</ItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txbDataEnvio" runat="server" Text="" />
<asp:CalendarExtender ID="txbDataEnvio_CalendarExtender" runat="server"
DefaultView="Months" Enabled="True" Format="MM-yyyy" PopupPosition="BottomLeft"
TargetControlID="txbDataEnvio">
</asp:CalendarExtender>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Descrição">
<EditItemTemplate>
<asp:TextBox ID="txbDescricao" runat="server" Text='<%# Eval("Descricao") %>' />
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lDescricao" runat="server" Text='<%# Eval("Descricao") %>' />
</ItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txbDescricao" runat="server" Text="" />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Valor">
<EditItemTemplate>
<asp:TextBox ID="txbValor" runat="server" Text='<%# Eval("Valor") %>' />
<asp:FilteredTextBoxExtender ID="txbValor_FilteredTextBoxExtender" runat="server" FilterType="Custom" TargetControlID="txbValor" ValidChars="0123456789,">
</asp:FilteredTextBoxExtender>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lValor" runat="server" Text='<%# Eval("Valor") %>' />
</ItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txbValor" runat="server" Text="" />
<asp:FilteredTextBoxExtender ID="txbValor_FilteredTextBoxExtender"
runat="server" FilterType="Numbers" TargetControlID="txbValor">
</asp:FilteredTextBoxExtender>
</FooterTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdateProgress ID="uprgDocumentos" runat="server"
AssociatedUpdatePanelID="upDocumentos" DisplayAfter="2000">
<ProgressTemplate>Loading...</ProgressTemplate>
</asp:UpdateProgress>
<asp:UpdatePanel ID="upDocumentos" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<div ID="dTabelaDocumentosHeader" class="PVPortletHeader">
<div ID="dTabelaDocumentosOpcoes" class="PVPortletHeaderOpcoes">
<asp:Label ID="lDocInicio" runat="server" Text="Inicio" style="float:left;"></asp:Label>
<asp:TextBox ID="txbInicio" runat="server" style="float:left;"></asp:TextBox>
<asp:CalendarExtender ID="txbInicio_CalendarExtender" runat="server" Enabled="True" Format="MM-yyyy" TargetControlID="txbInicio">
</asp:CalendarExtender>
<asp:Label ID="lDocFim" runat="server" Text="Fim" style="float:left;"></asp:Label>
<asp:TextBox ID="txbFim" runat="server" style="float:left;"></asp:TextBox>
<asp:CalendarExtender ID="txbFim_CalendarExtender" runat="server" Enabled="True" Format="MM-yyyy" TargetControlID="txbFim">
</asp:CalendarExtender>
<asp:Button ID="btnDocFiltro" runat="server" Text="Pesquisar" style="float:left;" OnClick="obterDocumento_OnSeacrh"/>
</div>
<b>Documentos Faturação</b>
<asp:Button ID="btnNovoDocumento" runat="server" OnClientClick="abrirDocumento(0);" Text="Novo" style="float:right;"/>
</div>
<asp:Panel ID="pgvDocumentosEmpty" runat="server" Visible="false">
<table class="PVPortlet">
<tbody>
<tr>
<th></th>
<th>ID</th>
<th>Fatura</th>
<th>Enviado</th>
<th>Estado</th>
<th>Tipo</th>
<th>Descrição</th>
<th>Valor</th>
</tr>
<tr>
<td colspan="8">Sem dados...</td>
</tr>
</tbody>
</table>
</asp:Panel>
<asp:GridView ID="gvDocumentos" runat="server" AutoGenerateColumns="false" AutoGenerateDeleteButton="false" AutoGenerateEditButton="false" AutoGenerateSelectButton="false" CssClass="PVPortlet">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton Text="Abrir" runat="server" ID="lbtnAbrirDoc" OnClientClick='<%#"abrirDocumento(" + Eval("ID") + ");"%>' />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="ID" HeaderText="ID" HtmlEncode="false" />
<asp:BoundField DataField="NFATURA" HeaderText="Fatura" HtmlEncode="false" />
<asp:BoundField DataField="EnviadoA" DataFormatString="{0:dd-MM-yyyy}" HeaderText="Enviado" HtmlEncode="false" />
<utl:CompositeBoundField DataField="Estado.Descricao" HeaderText="Estado" HtmlEncode="false" />
<utl:CompositeBoundField DataField="Tipo.Descricao" HeaderText="Tipo" HtmlEncode="false" />
<asp:TemplateField HeaderText="Descrição">
<ItemTemplate>
<asp:Label ID="lCabecalho" runat="server" Text='<%#Eval("Cabecalho").ToString().Cut(30,true)+"-"+Eval("Periodo")%>' />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="Valor" HeaderText="Valor" HtmlEncode="false" />
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
</asp:Panel>
</ContentTemplate>
</asp:UpdatePanel>
</form>
</body>
</html>
Server SIde
protected void Page_Load(object sender, EventArgs e)
{
userName = HttpContext.Current.User.Identity.Name.ToString().ToUpper();
sessionID = Session.SessionID;
if (!IsPostBack)
{
Session["USER_" + sessionID] = userName;
Session["TAREFAS_INV_" + sessionID] = null;
Session["PARCELAS_"+sessionID] = null;
Session["DOCUMENTOS_"+sessionID] = null;
carregaDadosFiltros();
string idPrj = null;
obtemParametrosEntrada(ref idPrj);
pgvDocumentosEmpty.Visible = true;
pgvParcelasEmpty.Visible = true;
pgvTarefasEmpty.Visible = true;
gvDocumentos.Visible = false;
gvParcelas.Visible = false;
gvTarefas.Visible = false;
if (!string.IsNullOrEmpty(idPrj))
{
bool filtra = true;
if (cblProjeto.Items.FindByValue(idPrj) != null)
{
cblProjeto.SelectedValue = idPrj;
}
else
{
string nome = InvDataAccess.obterNomeProjeto(idPrj);
if(!string.IsNullOrEmpty(nome))
{
ListItem prj = new ListItem(nome, idPrj, true);
cblProjeto.Items.Add(prj);
cblProjeto.SelectedValue = prj.Value;
}
else
filtra = false;
}
cblCliente.SelectedValue = "all";
cblPedido.SelectedValue = "all";
if(filtra) btnFiltra_Click(null, null);
}
}
else
{
userName = Session["USER_" + sessionID] as string;
DateTime inicio = DateTime.MinValue, fim = DateTime.MaxValue;
if (!DateTime.TryParseExact(txbInicio.Text, txbInicio_CalendarExtender.Format, null, System.Globalization.DateTimeStyles.None, out inicio))
txbInicio_CalendarExtender.SelectedDate = DateTime.MinValue;
if (!DateTime.TryParseExact(txbFim.Text, txbFim_CalendarExtender.Format, null, System.Globalization.DateTimeStyles.None, out fim))
txbFim_CalendarExtender.SelectedDate = DateTime.MaxValue;
if (Session["TAREFAS_INV_"+sessionID] != null)
tarefas = (Dictionary<int, InvTarefas>)Session["TAREFAS_INV_"+sessionID];
if (Session["PARCELAS_"+sessionID] != null)
{
parcelas = (Dictionary<int, InvParcelaTarefa>)Session["PARCELAS_"+sessionID];
gvParcelas.DataSource = parcelas.Values.ToList();
}
if (Session["DOCUMENTOS_"+sessionID] != null)
{
documentos = (Dictionary<int, InvDocumento>)Session["DOCUMENTOS_"+sessionID];
gvDocumentos.DataSource = documentos.Values.ToList();
}
}
}
protected void btnFiltra_Click(object sender, EventArgs e)
{
tarefas.Clear();
List<string> idCliente, idPedido, idProjeto;
DateTime inicio, fim;
idCliente = cblCliente.Items.Cast<ListItem>().Where(i => i.Selected).Select(i => i.Value).ToList();
idPedido = cblPedido.Items.Cast<ListItem>().Where(i => i.Selected).Select(i => i.Value).ToList();
idProjeto = cblProjeto.Items.Cast<ListItem>().Where(i => i.Selected).Select(i => i.Value).ToList();
inicio = DateTime.MinValue;
fim = DateTime.MaxValue;
List<InvTarefas> tars = InvTarefas.getInvTarefas(new List<string>{"all"}, idCliente, idPedido, idProjeto, inicio, fim);
if (tars != null && tars.Count > 0)
{
foreach (InvTarefas tar in tars)
{
tarefas.Add(tar.ID, tar);
}
this.Session["TAREFAS_INV_"+sessionID] = tarefas;
gvTarefas.DataSource = tarefas.Values.ToList();
gvTarefas.DataBind();
pgvTarefasEmpty.Visible = false;
gvTarefas.Visible = true;
}
else
{
this.Session["TAREFAS_INV_"+sessionID] = null;
pgvTarefasEmpty.Visible = true;
gvTarefas.Visible = false;
}
}

After some help from a colleague, we found that the gvTarefas_OnRowCreated event was firing before the Page_load and that the code inside was trowing null exception.
I was also advised to change my event to OnRowDataBound.
Also, for those of you who didn't knew you can set (when in trouble, otherwise is to much load) VS to stop on the line that throwed the exception by going Debug->Exceptions->Throw in Common Language Runtime Exceptions. If i knew this I probably had solved it right away.
Now, about the strange OnRowCreated before Page_Load, i still can't understand, but something tells me it's because of my UpdatePanel upBody that catches most of the page and its update mode is in Always (is the default value).
Last, i'm putting my OnRowCreated code
protected void gvTarefas_OnRowCreated(Object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
InvTarefas tar = e.Row.DataItem as InvTarefas;
if (tar.EntidadeResponsavel != InvEntidadeResponsavel.PV_PROPRIO)
{
e.Row.Enabled = false;
e.Row.CssClass = "PVPortlet_DisabledRoW";
}
}
}

Selecting an asp.net control which is in an UpdatePanel

I want to enable a DropDownList which is in a ListView (ID = "SehensList") and put in an UpdatePanel. My first bet was the following, but it didn't work;
DropDownList DropdownDistrict = (DropDownList)SehenList.InsertItem.FindControl("DistrictDropDownListInsert");
DropdownDistrict.Enabled = true;
Here is the aspx side;
<InsertItemTemplate>
<tr style="">
<td>
<asp:Button ID="InsertButton" runat="server" CommandName="Insert" Text="Insert" />
<asp:Button ID="CancelButton" runat="server" CommandName="Cancel" Text="Clear" />
</td>
<td>
<asp:TextBox ID="CityFKTextBox_Insert" runat="server" Visible="false" Text='<%# Bind("CityFK") %>' />
<asp:DropDownList ID="CityFKDropDownListInsert" runat="server" DataSourceID="CityFKEntityDataSource_Insert" AutoPostBack="true"
OnSelectedIndexChanged="CityFKDropDownListInsert_SelectedIndexChanged" DataTextField="CityName" DataValueField="CityID"
AppendDataBoundItems="true">
<asp:ListItem Text="-Stadt Wählen-" Value="0" ></asp:ListItem>
</asp:DropDownList>
<asp:EntityDataSource ID="CityFKEntityDataSource_Insert" runat="server"
ConnectionString="name=MedicalEntities" DefaultContainerName="MedicalEntities"
EntitySetName="Cities">
</asp:EntityDataSource>
<asp:ScriptManager ID="SMCityFKInsert" runat="server"></asp:ScriptManager>
<asp:UpdatePanel ID="UPCityFKInsert" runat="server">
<ContentTemplate>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="CityFKDropDownListInsert" EventName="SelectedIndexChanged" />
</Triggers>
</asp:UpdatePanel>
</td>
<td>
<asp:TextBox ID="DistrictTextBox_Insert" runat="server" Visible="false" Text='<%# Bind("District") %>' />
<asp:DropDownList ID="DistrictDropDownListInsert" runat="server" Enabled="false" AutoPostBack="true"
OnSelectedIndexChanged="DistrictDropDownListInsert_SelectedIndexChanged" DataTextField="DistrictName" DataValueField="DistrictID"
AppendDataBoundItems="true">
<asp:ListItem Text="-Stadt Wählen-" Value="0" ></asp:ListItem>
</asp:DropDownList>
<asp:UpdatePanel ID="UPDistrictInsert" runat="server">
<ContentTemplate>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="DistrictDropDownListInsert" EventName="SelectedIndexChanged" />
</Triggers>
</asp:UpdatePanel>
</td>
</tr>
</InsertItemTemplate>
As you notice DropDownLists are outside of the UpdatePanel and are called through "Triggers". If I put the DropDownLists into the UpdatePanel ContentTemplate (I guess, this is a totally wrong approach), second DropDownList "DistrictDropDownListInsert" is enabled but at that case it is not updated more than once. I mean by "not updated more than once" if you change the first DropDownList "CityFKDropDownListInsert" it is set to its previous value (not the default value but the first selected value). I know it's a bit confusing. If you have any unclear part please let me know.

It should be like this:
protected void SehenList_ItemInserting(object sender, ListViewInsertEventArgs e)
{
var pnl = SehenList.InsertItem.FindControl("UPCityFKInsert") as UpdatePanel;
if (pnl != null)
{
var ddlDistrictInsert = pnl.FindControl("DistrictDropDownListInsert") as DropDownList;
if (ddlDistrictInsert != null) ddlDistrictInsert.Enabled = true;
}
}

Hide and Display of TabPanel in TabContainer

I'm trying to hide the TabPanel4 when the application start, then when user select specific item from the dropdownlist it then display the TabPanel4 out for the user. Below is the code I used, not sure why it not working. Do help me take a look at my code see which part did I do wrongly. Thanks!
Aspx
<asp:TabContainer ID="TabContainer1" runat="server" Height="75%" Width="100%" UseHorizontalStripPlacement="true"
ActiveTabIndex="0" OnDemand="true" AutoPostBack="true" TabStripPlacement="Top" ScrollBars="Auto">
<asp:TabPanel ID="TabPanel1" runat="server" HeaderText="Incident Information" Enabled="true" ScrollBars="Auto" OnDemandMode="Once">
<ContentTemplate>
<table width="100%">
<tr>
<td>
<b>Type of crime:</b>
<asp:DropDownList ID="ddlToC" runat="server" AutoPostBack="true" OnSelectedIndexChanged="ddlToC_SelectedIndexChanged">
<asp:ListItem>Accident</asp:ListItem>
<asp:ListItem>Theft</asp:ListItem>
<asp:ListItem>Robbery</asp:ListItem>
<asp:ListItem>Housebreaking</asp:ListItem>
<asp:ListItem>Fraud</asp:ListItem>
<asp:ListItem>Loan Shark</asp:ListItem>
</asp:DropDownList>
<br />
</td>
</tr>
</table>
</ContentTemplate>
</asp:TabPanel>
<asp:TabPanel ID="TabPanel4" runat="server" HeaderText="Property" Enabled="true" ScrollBars="Auto" OnDemandMode="Once" Visible="false">
<ContentTemplate>
Is there any property lost in the incident?
<asp:RadioButton ID="rbPropertyYes" runat="server" GroupName="rbGroup3" Text="Yes" AutoPostBack="True" />
<asp:RadioButton ID="rbPropertyNo" runat="server" GroupName="rbGroup3" Text="No" AutoPostBack="True" />
<br />
<br />
<asp:Label ID="Label4" runat="server" Text="Describe what was lost in the incident." Visible="False"></asp:Label>
<br />
<br />
<asp:TextBox ID="txtProperty" runat="server" Height="75px" TextWrapping="Wrap" TextMode="MultiLine" Width="400px" Visible="False"/>
<br />
<br />
<asp:Label ID="Label5" runat="server" Text="You have " Visible="False"></asp:Label><asp:Label ID="lblCount3" runat="server" Text="500" Visible="False"></asp:Label> <asp:Label ID="Label6" runat="server" Text=" characters left." Visible="False"></asp:Label>
</ContentTemplate>
</asp:TabPanel>
</asp:TabContainer>
Code behind
protected void ddlToC_SelectedIndexChanged(object sender, EventArgs e)
{
if (ddlToC.SelectedValue.Equals("Theft"))
{
TabPanel4.Visible = true;
}
else if (ddlToC.SelectedValue.Equals("Robbery"))
{
TabPanel4.Visible = true;
}
else if (ddlToC.SelectedValue.Equals("Housebreaking"))
{
TabPanel4.Visible = true;
}
else if (ddlToC.SelectedValue.Equals("Fraud"))
{
TabPanel4.Visible = true;
}
}
To add on: even I take away the Visible="false" from the aspx page and set it in code behind page under Page_Load it don't work, it still don't appear when I select the item in the dropdownlist. Also tried using TabContainer1.Tabs[3].Visible = false / true; to hide or display it but it also don't seem to work.

ddlToC is not handling SelectedIndexChanged.
Change your markup to this:
<asp:DropDownList ID="ddlToC" runat="server" AutoPostBack="true" OnSelectedIndexChanged="ddlToC_SelectedIndexChanged">

Add rows of textboxes with a click of a button

I am badly stuck on this problem and would appreciate any kinds of helps! I have to create a page where the user can add more rows by clicking a button. For example, I have the first row with 2 text boxes (name and birth dates), second row with the "Add Row" button. When the user clicks the "Add Row" button, the first row should be cloned and repeated...but the user can't add more than 5 rows. Later all the information need to be saved in a SQL table. How this can be achieved in C#?
I am attaching my sample ASP.NET. Can any one PLEASE help me?
PS: I have already read and tried "How to: Add Rows and Cells Dynamically to a Table Web Server Control"....but that's not working for me.
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Testing Adding Rows</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Table ID="Table1" runat="server" width="400" style="border:[none][0]; border-color:White; border-style:hidden">
<asp:TableRow ID="TableRow1" runat="server">
<asp:TableCell runat="server" nowrap="nowrap" Width= "70">
<asp:Label ID="nameLabel" runat="server" Text="Your Name" Font-Size="X-Small"></asp:Label>
</asp:TableCell>
<asp:TableCell runat="server" nowrap="nowrap" Width= "100">
<asp:TextBox ID="tb_name" runat="server" Font-Size="Smaller"></asp:TextBox>
<asp:RequiredFieldValidator ID="nameValidator" runat="server" ControlToValidate="tb_name" Font-Size="Smaller">*</asp:RequiredFieldValidator>
</asp:TableCell>
<asp:TableCell runat="server" nowrap="nowrap" Width= "70">
<asp:Label ID="dateLabel" runat="server" Text="Birthdate" Font-Size="Smaller" ></asp:Label>
</asp:TableCell>
<asp:TableCell runat="server" Width= "100">
<asp:TextBox ID="tb_date" runat="server" Font-Size="Smaller"></asp:TextBox>
<asp:RequiredFieldValidator ID="dateValidator" runat="server" ControlToValidate="tb_date" Font-Size="Smaller">*</asp:RequiredFieldValidator>
</asp:TableCell>
</asp:TableRow>
<asp:TableRow ID="TableRow2" runat="server">
<asp:TableCell runat="server" align="left" Width= "100">
<asp:Button ID="addRow" runat="server" Height="22px" Text="Add Row"
ToolTip="Click to add another row" onclick="ButtonAddRow_Click" />
</asp:TableCell>
</asp:TableRow>
<asp:TableRow ID="TableRow3" runat="server">
<asp:TableCell runat="server" bordercolor="#FFFFFF"> </asp:TableCell>
<asp:TableCell runat="server" align="left" nowrap="nowrap" bordercolor="#FFFFFF">
<asp:Label ID="msg" runat="server" ForeColor="Red" Font-Size="Smaller"></asp:Label>
<asp:ValidationSummary ID="LogonValidationSummary" HeaderText="All the fields (*) are required." DisplayMode="SingleParagraph"
Font-Italic="true" ShowSummary="True" EnableClientScript="true" runat="server" Font-Size="Smaller"/>
</asp:TableCell>
</asp:TableRow>
<asp:TableRow ID="TableRow4" runat="server">
<asp:TableCell ID="TableCell10" runat="server" bordercolor="#FFFFFF"> </asp:TableCell>
<asp:TableCell ID="TableCell11" runat="server" align="left" bordercolor="#FFFFFF">
<asp:Button ID="ButtonSubmit" runat="server" Height="22px" Text="Submit" Width="79px" onclick="ButtonSubmit_Click" />
</asp:TableCell>
</asp:TableRow>
</asp:Table>
</div>
</form>
</body>
</html>

This codes snippet is just a hint that you can do this way..
TableRow row = new TableRow();
for (int j = 0; j < colsCount; j++)
{
TableCell cell = new TableCell();
TextBox tb = new TextBox();
tb.ID = "TextBoxRow_" + i + "Col_" + j;
cell.Controls.Add(tb);
row.Cells.Add(cell);
}
Table1.Rows.Add(row);

I would like if you make use of GridView control and than add row runtime to gridview rather than using table. That would minize your effort also code.
here is code for you : Adding Dynamic Rows in GridView with TextBoxes

Develop Reference

C# (C-Sharp) is a programming language developed by Microsoft that runs on the .NET Framework.

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Selecting an asp.net control which is in an UpdatePanel

Hide and Display of TabPanel in TabContainer

Add rows of textboxes with a click of a button

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