UpdateProgress not working on secound click

UpdateProgress not working on secound click - c#

UpdateProgress works good on first button click . But when i click second time the UpdateProgress didn't appeared.Instead of UpdateProgress all things works good on second click. Please help me..
<asp:UpdatePanel ID="UpdatePanel2" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnSubmit" />
</Triggers>
<ContentTemplate>
<div class="form-group row">
<div class="col-sm-6">
<p style="margin: 0 0 5px 0;"><b>Class</b></p>
<asp:DropDownList ID="drpClass" CssClass="form-control" OnSelectedIndexChanged="drpClass_SelectedIndexChanged" AutoPostBack="true" runat="server"></asp:DropDownList>
</div>
<div class="col-sm-6">
<p style="margin: 0 0 5px 0;"><b>Division</b></p>
<asp:DropDownList ID="drpDiv" CssClass="form-control"
runat="server">
</asp:DropDownList>
</div>
</div>
<div class="form-group row">
<div class="col-sm-6">
<p style="margin: 0 0 5px 0;"><b>Date</b></p>
<asp:TextBox runat="server" ID="txtDateGiven" CssClass="form-control"
placeholder="Select a Date"></asp:TextBox>
<asp:CalendarExtender ID="CalendarExtender2" runat="server" Format="dd/MMM/yyyy" PopupButtonID="txtDateGiven"
TargetControlID="txtDateGiven">
</asp:CalendarExtender>
</div>
<div class="col-sm-6">
<p style="margin: 0 0 5px 0;"><b>Date of Submission</b></p>
<asp:TextBox runat="server" ID="txtDateSubmit" CssClass="form-control"
placeholder="Select a Date"></asp:TextBox>
<asp:CalendarExtender ID="CalendarExtender1" runat="server" Format="dd/MMM/yyyy" PopupButtonID="txtDateSubmit"
TargetControlID="txtDateSubmit">
</asp:CalendarExtender>
</div>
</div>
<div class="form-group row">
<div class="col-sm-12">
<p style="margin: 0 0 5px 0;"><b>Subject</b></p>
<asp:DropDownList ID="drpSubject" CssClass="form-control" runat="server"></asp:DropDownList>
</div>
</div>
<div class="form-group row">
<div class="col-sm-12">
<p style="margin: 0 0 5px 0;"><b>Type</b></p>
<asp:DropDownList ID="drpAssignmentType" CssClass="form-control" runat="server"></asp:DropDownList>
</div>
</div>
<div class="form-group row">
<div class="col-sm-12">
<p style="margin: 0 0 5px 0;"><b>Title</b></p>
<asp:TextBox ID="txtAssignmentTitle" CssClass="form-control" placeholder="Enter Title"
runat="server"></asp:TextBox>
</div>
</div>
<div class="form-group row">
<div class="col-sm-12">
<p style="margin: 0 0 5px 0;"><b>Description</b></p>
<asp:TextBox ID="txtAssignmentDes" CssClass="form-control" TextMode="MultiLine" Height="250"
placeholder="Enter Description"
runat="server"></asp:TextBox>
</div>
</div>
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdateProgress ID="updProgress"
AssociatedUpdatePanelID="UpdatePanel1"
runat="server">
<ProgressTemplate>
<div class="modal">
<div class="center">
<span style="padding-left: 10px"><b>Please Wait..</b></span>
<img alt="" src="../images/Preloader_3.gif" width="50" height="50" />
</div>
</div>
</ProgressTemplate>
</asp:UpdateProgress>
<div class="form-group row">
<div class="col-sm-6">
<p style="margin: 0 0 5px 0;"><b>Upload File</b></p>
<asp:FileUpload ID="imgPhoto" runat="server" />
<br />
<asp:Button ID="btnUpload" Text="Upload" runat="server" OnClick="Upload" Style="display: none" />
<% if (ViewState["Image"] != null)
{%>
<a target="_blank" href="<%=ViewState["ImageName"]%>">View Attachment</a>
<%}
else
{ %>
<asp:Label ID="Label1" runat="server" ForeColor="Red" Text="No File Uploaded"></asp:Label>
<%} %>
</div>
</div>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<div class="form-group row">
<div class="col-sm-6">
<div class="col-sm-6">
<asp:Button ID="btnSubmit" OnClick="btnSubmit_Click"
OnClientClick="javascript:return btnSubmit();" CssClass="btn btn-primary"
runat="server" Text="Submit" />
Cancel
</div>
</div>
</div>
</ContentTemplate>
</asp:UpdatePanel>
Code behind
updProgress.Visible = true;
SendEmail(Convert.ToInt32(drpDiv.Text));
updProgress.Visible = false;
txtAssignmentTitle.Text = "";
txtAssignmentDes.Text = "";
txtDateGiven.Text = "";
txtDateSubmit.Text = "";
ViewState["Image"] = null;
ViewState["ImageName"] = null;
drpAssignmentType.Items.Clear();
drpClass.Items.Clear();
drpDiv.Items.Clear();
drpSubject.Items.Clear();
drpSubject.Items.Insert(0, new ListItem("--Select--", "0"));
drpAssignmentType.Items.Insert(0, new ListItem("--Select--", "0"));
LoadClass();
LoadClassAndAssignmentType();
drpDiv.Items.Insert(0, new ListItem("--Select--", "0"));
i am using update panel to avoid page load .Also the UpdateProgress didn't appeared if i try to reload the page using response.redirect . Please help me ..

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may helps you

UpdateProgress not firing on every PostBack of controls inside UpdatePanel

I have an UpdatePanel:
<asp:UpdatePanel runat="server" ID="panelFatt">
<ContentTemplate>
<div class="row" runat="server" id="divCFPIva">
<div class="col-md-6">
<div class="form-group">
<label for="txtCF">Codice Fiscale</label>
<asp:TextBox runat="server" ID="txtCF" type="text" MaxLength="16" class="form-control" />
</div>
</div>
<div class="col-md-6">
<div class="form-group">
<label for="txtPIVA">Partita IVA</label>
<asp:TextBox runat="server" ID="txtPIVA" type="text" MaxLength="11" class="form-control" />
</div>
</div>
<div class="col-md-12">
<span class="help-inline hidden lblerror" runat="server" id="lblErrorCFPIva"></span>
</div>
</div>
<div class="row">
<div class="col-md-6">
<div class="form-group" runat="server" id="divEmail">
<label for="txtEmail" class="control-label">Email*</label>
<div class="controls">
<asp:TextBox runat="server" TextMode="Email" type="text" ID="txtEmail" class="form-control" />
<span class="help-inline hidden lblerror" runat="server" id="lblErrorEmail"></span>
</div>
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<div class="col-md-6">
<div class="form-group" runat="server" id="divTelefono">
<label for="txtTelefono" class="control-label">Recapito Telefonico*</label>
<div class="controls">
<asp:TextBox runat="server" ID="txtTelefono" type="text" TextMode="Phone" class="form-control" />
<span class="help-inline hidden lblerror" runat="server" id="lblErrorTelefono"></span>
</div>
</div>
</div>
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<!-- /Row -->
<div class="form-group">
<asp:RadioButton runat="server" ID="radioScegliIndirizziFatt" Text=" Scegli tra uno dei tuoi indirizzi" AutoPostBack="true" OnCheckedChanged="radioScegliIndirizziFatt_CheckedChanged" Checked="true" GroupName="radioIndirizziFatt" />
<div class="form-group" runat="server" id="divScegliIndirizzoFatt">
<asp:DropDownList runat="server" ID="ddlIndirizziFatt" class="form-control"></asp:DropDownList>
<span class="help-inline hidden lblerror" runat="server" id="lblErrorScegliIndirizziFatt"></span>
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<br />
<asp:RadioButton runat="server" ID="radioNuovoIndirizzoFatt" Text=" Inserisci un nuovo Indirizzo" AutoPostBack="true" OnCheckedChanged="radioNuovoIndirizzoFatt_CheckedChanged" GroupName="radioIndirizziFatt" />
<div class="form-group" runat="server" id="divNomeFatt">
<label for="txtNomeFatt" class="control-label">Nome o Ragione Sociale*</label>
<div class="controls">
<asp:TextBox runat="server" ID="txtNomeFatt" type="text" class="form-control" />
<span class="help-inline hidden lblerror" runat="server" id="lblErrorNomeFatt"></span>
</div>
</div>
<div class="form-group" runat="server" id="divIndirizzoFatt">
<label for="txtIndirizzoFatt" class="control-label">Indirizzo*</label>
<div class="controls">
<asp:TextBox runat="server" ID="txtIndirizzoFatt" type="text" class="form-control" />
<span class="help-inline hidden lblerror" runat="server" id="lblErrorIndirizzoFatt"></span>
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</div>
<div class="row">
<div class="col-md-5">
<div class="form-group" runat="server" id="divStatoFatt">
<label for="ddlStatoFatt" class="control-label">Stato</label>
<div class="controls">
<asp:DropDownList runat="server" ID="ddlStatoFatt" OnSelectedIndexChanged="ddlStatoFatt_SelectedIndexChanged" class="form-control" AutoPostBack="true" />
</div>
</div>
</div>
<div class="col-md-7">
<div class="form-group" runat="server" id="divProvinciaFatt" visible="false">
<label runat="server" id="lblProvinciaFatt" for="ddlProvinciaFatt" class="control-label">Provincia</label>
<div class="controls">
<asp:DropDownList runat="server" ID="ddlProvinciaFatt" class="form-control" OnSelectedIndexChanged="ddlProvinciaFatt_SelectedIndexChanged" AutoPostBack="true" />
</div>
</div>
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<div class="row">
<div class="col-md-8" runat="server" id="divCittaFatt">
<div class="form-group">
<label runat="server" id="lblCittaFatt" for="txtCittaFatt" class="control-label">Città*</label>
<div class="form-group" runat="server" id="divDDLFatt" visible="false">
<asp:DropDownList runat="server" ID="ddlCittaFatt" class="form-control" OnSelectedIndexChanged="ddlCittaFatt_SelectedIndexChanged" AutoPostBack="true" />
</div>
<br />
<div class="form-group" runat="server" id="divTXTFatt" visible="false">
<asp:TextBox runat="server" ID="txtCittaFatt" type="text" class="form-control" />
</div>
<span class="help-inline hidden lblerror" runat="server" id="lblErrorCittaFatt"></span>
</div>
</div>
<div class="col-md-4" runat="server" id="divCAPFatt">
<div class="form-group">
<label for="txtCAPFatt" class="control-label">CAP*</label>
<div class="controls">
<asp:TextBox runat="server" ID="txtCapFatt" type="text" class="form-control" />
<span class="help-inline hidden lblerror" runat="server" id="lblErrorCAPFatt"></span>
</div>
</div>
</div>
</div>
</div>
</ContentTemplate>
</asp:UpdatePanel>
And I'm trying to fire an UpdateProgress that I would like show loading image at every post back of the controls inside the UpdatePanel.
<asp:UpdateProgress ID="UpdateProgress1" runat="server" AssociatedUpdatePanelID="panelFatt">
<ProgressTemplate>
<div class="modal">
<div class="center">
<img alt="" src="http://i.stack.imgur.com/FhHRx.gif" />
</div>
</div>
</ProgressTemplate>
</asp:UpdateProgress>
This is not working at all.
I saw on the Internet that someone associates a client method with the click of a button in the Update Panel.
But I should do it for all the controls that make a post back within my update panel.
Is there a way to make it work?
I modified my code in this way:
<asp:UpdatePanel runat="server" ID="panelFatt" UpdateMode="Conditional">
<ContentTemplate>
<div class="row">
<div class="col-md-6">
<h4>
<asp:CheckBox runat="server" ID="checkFattura" Text="Desidero ricevere la Fattura" AutoPostBack="true" OnCheckedChanged="checkFattura_CheckedChanged" CssClass="checkbox-inline cssRadio" /></h4>
</div>
</div>
<br />
<div class="row" runat="server" id="divCFPIva">
<div class="col-md-6">
<div class="form-group">
<label for="txtCF" runat="server" id="lblCF" visible="false">Codice Fiscale</label>
<asp:TextBox runat="server" ID="txtCF" type="text" MaxLength="16" class="form-control" Visible="false" />
</div>
</div>
<div class="col-md-6">
<div class="form-group">
<label for="txtPIVA" runat="server" id="lblPIva" visible="false">Partita IVA</label>
<asp:TextBox runat="server" ID="txtPIVA" type="text" MaxLength="11" class="form-control" Visible="false" />
</div>
</div>
<div class="col-md-12">
<span class="help-inline hidden lblerror" runat="server" id="lblErrorCFPIva"></span>
</div>
</div>
<div class="row">
<div class="col-md-6">
<div class="form-group" runat="server" id="divEmail">
<label for="txtEmail" class="control-label">Email*</label>
<div class="controls">
<asp:TextBox runat="server" TextMode="Email" type="text" ID="txtEmail" class="form-control" />
<span class="help-inline hidden lblerror" runat="server" id="lblErrorEmail"></span>
</div>
</div>
</div>
<div class="col-md-6">
<div class="form-group" runat="server" id="divTelefono">
<label for="txtTelefono" class="control-label">Recapito Telefonico*</label>
<div class="controls">
<asp:TextBox runat="server" ID="txtTelefono" type="text" TextMode="Phone" class="form-control" />
<span class="help-inline hidden lblerror" runat="server" id="lblErrorTelefono"></span>
</div>
</div>
</div>
</div>
<!-- /Row -->
<div class="form-group">
<div runat="server" id="divNotVisibleFatt">
<asp:RadioButton runat="server" ID="radioScegliIndirizziFatt" Text=" Scegli tra uno dei tuoi indirizzi" AutoPostBack="true" OnCheckedChanged="radioScegliIndirizziFatt_CheckedChanged" Checked="true" GroupName="radioIndirizziFatt" />
<div class="form-group" runat="server" id="divScegliIndirizzoFatt">
<asp:DropDownList runat="server" ID="ddlIndirizziFatt" class="form-control"></asp:DropDownList>
<span class="help-inline hidden lblerror" runat="server" id="lblErrorScegliIndirizziFatt"></span>
</div>
<br />
<asp:RadioButton runat="server" ID="radioNuovoIndirizzoFatt" Text=" Inserisci un nuovo Indirizzo" AutoPostBack="true" OnCheckedChanged="radioNuovoIndirizzoFatt_CheckedChanged" GroupName="radioIndirizziFatt" />
</div>
<div class="form-group" runat="server" id="divNomeFatt">
<label for="txtNomeFatt" class="control-label">Nome o Ragione Sociale*</label>
<div class="controls">
<asp:TextBox runat="server" ID="txtNomeFatt" type="text" class="form-control" />
<span class="help-inline hidden lblerror" runat="server" id="lblErrorNomeFatt"></span>
</div>
</div>
<div class="form-group" runat="server" id="divIndirizzoFatt">
<label for="txtIndirizzoFatt" class="control-label">Indirizzo*</label>
<div class="controls">
<asp:TextBox runat="server" ID="txtIndirizzoFatt" type="text" class="form-control" />
<span class="help-inline hidden lblerror" runat="server" id="lblErrorIndirizzoFatt"></span>
</div>
</div>
<div class="row">
<div class="col-md-5">
<div class="form-group" runat="server" id="divStatoFatt">
<label for="ddlStatoFatt" class="control-label">Stato</label>
<div class="controls">
<asp:DropDownList runat="server" ID="ddlStatoFatt" OnSelectedIndexChanged="ddlStatoFatt_SelectedIndexChanged" class="form-control" AutoPostBack="true" />
</div>
</div>
</div>
<div class="col-md-7">
<div class="form-group" runat="server" id="divProvinciaFatt" visible="false">
<label runat="server" id="lblProvinciaFatt" for="ddlProvinciaFatt" class="control-label">Provincia</label>
<div class="controls">
<asp:DropDownList runat="server" ID="ddlProvinciaFatt" class="form-control" OnSelectedIndexChanged="ddlProvinciaFatt_SelectedIndexChanged" AutoPostBack="true" />
</div>
</div>
</div>
</div>
<div class="row">
<div class="col-md-8" runat="server" id="divCittaFatt">
<div class="form-group">
<label runat="server" id="lblCittaFatt" for="txtCittaFatt" class="control-label">Città*</label>
<div class="form-group" runat="server" id="divDDLFatt" visible="false">
<asp:DropDownList runat="server" ID="ddlCittaFatt" class="form-control" OnSelectedIndexChanged="ddlCittaFatt_SelectedIndexChanged" AutoPostBack="true" />
</div>
<br />
<div class="form-group" runat="server" id="divTXTFatt" visible="false">
<asp:TextBox runat="server" ID="txtCittaFatt" type="text" class="form-control" />
</div>
<span class="help-inline hidden lblerror" runat="server" id="lblErrorCittaFatt"></span>
</div>
</div>
<div class="col-md-4" runat="server" id="divCAPFatt">
<div class="form-group">
<label for="txtCAPFatt" class="control-label">CAP*</label>
<div class="controls">
<asp:TextBox runat="server" ID="txtCapFatt" type="text" class="form-control" />
<span class="help-inline hidden lblerror" runat="server" id="lblErrorCAPFatt"></span>
</div>
</div>
</div>
</div>
</div>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="checkFattura" EventName="CheckedChanged"/>
<asp:AsyncPostBackTrigger ControlID="radioScegliIndirizziFatt" EventName="CheckedChanged"/>
<asp:AsyncPostBackTrigger ControlID="radioNuovoIndirizzoFatt" EventName="CheckedChanged"/>
<asp:AsyncPostBackTrigger ControlID="ddlStatoFatt" EventName="SelectedIndexChanged"/>
<asp:AsyncPostBackTrigger ControlID="ddlProvinciaFatt" EventName="SelectedIndexChanged"/>
<asp:AsyncPostBackTrigger ControlID="ddlCittaFatt" EventName="SelectedIndexChanged"/>
</Triggers>
</asp:UpdatePanel>
<asp:UpdateProgress ID="UpdateProgress1" runat="server" AssociatedUpdatePanelID="panelFatt">
<ProgressTemplate>
<div class="modal">
<div class="center">
<img alt="" src="https://i.stack.imgur.com/FhHRx.gif" />
</div>
</div>
</ProgressTemplate>
</asp:UpdateProgress>
but even not working..
and my data bind aer in Page_Load
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
// Combo Province
DataTable dtProv = oTabelle.GetDTProvinceByIdStato(IdStatoITA);
oUty.loadDDL(ref ddlProvinciaFatt, dtProv, "IdProvincia", "NomeProvincia", "", "", "");
ddlProvinciaFatt.SelectedValue = "";
...
}
}
and my associated event is the following
protected void ddlProvinciaFatt_SelectedIndexChanged(object sender, EventArgs e)
{
txtCapFatt.Text = "";
string idProvincia = ddlProvinciaFatt.SelectedValue;
// carico i comuni della provincia
oUty.loadDDL(ref ddlCittaFatt, oTabelle.GetDTComuniByIdProvincia(idProvincia), "IdComune", "NomeComune", "", "", "", true);
ddlCittaFatt.SelectedIndex = -1;
}
where I'm wrong?

For displaying UpdateProgress on every PostBack of your Controls in UpdatePanel:
Set UpdateMode of your UpdatePanel to Conditional:
Manually trigger AsyncPostBackTrigger to your controls inside UpdatePanel and give the ControlID and EventName that will fire:
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional" >
</ContentTemplate>
<!-- Some other controls that perform post back -->
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="ddlStatoFatt"
EventName="SelectedIndexChanged" />
</Triggers>
</asp:UpdatePanel>
And can test its working in events using System.Threading.Thread.Sleep(3000);:
protected void ddlStatoFatt_SelectedIndexChanged(object sender, EventArgs e)
{
// delay it for testing
System.Threading.Thread.Sleep(3000);
Label1.Text = "Page refreshed with DropDownList at " +
DateTime.Now.ToString();
}
I have tried this at my site and its working:
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional" >
<ContentTemplate>
<fieldset>
<legend>UpdatePanel1</legend>
<asp:Label ID="Label1" runat="server" Text="Panel initially rendered."></asp:Label>
<br />
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True"
OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
<asp:ListItem Value="1">Choose</asp:ListItem>
<asp:ListItem Value="2">Blue</asp:ListItem>
<asp:ListItem Value="3">Green</asp:ListItem>
</asp:DropDownList>
<br />
<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
</fieldset>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="DropDownList1" EventName="SelectedIndexChanged" />
<asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
<asp:UpdateProgress ID="UpdateProgress" runat="server" AssociatedUpdatePanelID="UpdatePanel1">
<ProgressTemplate>
Panel2 updating....
</ProgressTemplate>
</asp:UpdateProgress>
And Code-Behind:
protected void Button1_Click(object sender, EventArgs e)
{
// Introducing delay for demonstration.
System.Threading.Thread.Sleep(3000);
Label1.Text = "Page refreshed at " +
DateTime.Now.ToString();
}
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
// Introducing delay for demonstration.
System.Threading.Thread.Sleep(3000);
Label1.Text = "Page refreshed with DDL at " +
DateTime.Now.ToString();
}

I used code below in my projects and worked properly. I hope it helps you.
<asp:UpdatePanel ID="panelFatt" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:UpdateProgress ID="UpdateProgress1" runat="Server" DisplayAfter="1" AssociatedUpdatePanelID="panelFatt">
<ProgressTemplate>
<div style="position: absolute; text-align: center; height: 100%; width: 100%; top: 0; right: 0; left: 0; z-index: 9999999; background-color: #000000; opacity: 0.7;">
<image src="http://i.stack.imgur.com/FhHRx.gif" alternatetext="Loading ..." tooltip="Loading ..." style="padding: 10px; position: absolute; top: 45%; left: 50%;" />
</div>
</ProgressTemplate>
</asp:UpdateProgress>
</ContentTemplate>
</asp:UpdatePanel>

From the Code you provided , everything seems fine but you have missed to add the AsyncPostback trigger in your <asp:updatepanel></asp:updatepanel> : for your case , this can be added:
<Triggers>
<asp:AsyncPostBackTrigger ControlID="ddlStatoFatt"
EventName="SelectedIndexChanged" />
</Triggers>
I have added only on dropdown , to check whether its working or not , if it goes well then you can change the controlID with your updatepannelId.
Another thing you missed in your code is that you need to see the UpdateMode="Conditional" in your update panel

If you need to show it for fullpostbacks you can use a simple javascript function. Taken from, https://forums.asp.net/t/1101546.aspx?Update+Progress+show+on+Ajax+Full+Postback+Trigger
<asp:UpdateProgress ID="UpdateProgress1" runat="server" AssociatedUpdatePanelID="upTest">
<ProgressTemplate>
Updating!
</ProgressTemplate>
</asp:UpdateProgress>
<asp:UpdatePanel ID="upTest" ChildrenAsTriggers="False" UpdateMode="Conditional" runat="server">
<ContentTemplate>
<asp:Button ID="btnFullPost" Text="Full Post" runat="server" OnClick="btnFullPost_Click" OnClientClick="ShowProgress();"/>
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="btnFullPost" />
</Triggers>
</asp:UpdatePanel>
<script type="text/javascript">
function ShowProgress()
{
document.getElementById('<% Response.Write(UpdateProgress1.ClientID); %>').style.display = "inline";
}
</script>

Add asp.net update panel linkbutton not working

In my webapplication page ,top of the page contain seven linkbutton .So i am adding asp.net update panel .After including that the linkbutton events are not worked.Without using the update panel it work well. How can I solve the problem?
Here is my code:
<div class="container">
<asp:UpdatePanel runat="server" ID="up1" UpdateMode="Conditional"><ContentTemplate>
<div class="col-md-12" data-wow-delay="0s">
<div class="filter_menu ">
<div class="boltsort">Sort By:</div>
<div class="boltsortlist">
<asp:LinkButton ID="lkrecomm" runat="server">Recommended</asp:LinkButton> |
<asp:LinkButton ID="lkrating" runat="server">User Rating</asp:LinkButton> |
<asp:LinkButton ID="lkprice" runat="server" OnClick="lkprice_Click">Price</asp:LinkButton> |
<asp:LinkButton ID="lkDistance" runat="server" OnClick="lkDistance_Click">Distance</asp:LinkButton> |
<asp:LinkButton ID="lkA_Z" runat="server" OnClick="lkA_Z_Click" Text="A-Z"></asp:LinkButton> |
<asp:LinkButton ID="lkNewest" runat="server" OnClick="lkNewest_Click">Newest</asp:LinkButton> |
<asp:LinkButton ID="lkHalal" runat="server" OnClick="lkHalal_Click">Halal</asp:LinkButton>
</div>
</div>
</div>
</ContentTemplate></asp:UpdatePanel>
<div class="col-md-12">
<div class="left_side_choose_list">
<div class="select_rest">
<p class="left_span">Choose Multi / Restaurant</p>
<div id="dl-menu" class="dl-menuwrapper">
<div class="top_arrow dl-trigger"><i class="glyphicon glyphicon-chevron-right"></i></div>
<div class="menu_list dl-menu">
<div class="all_menu text-left">Available Restaurant near you..</div>
<div class="panel-group null_margin" id="accordion">
<asp:ListView ID="LvCuisine" runat="server" OnItemDataBound="OnItemDataBound">
<ItemTemplate>
<div class="accoring panel-default">
<div class="accor_styles text-left">
<a class="accordion-toggle panel-title" data-toggle="collapse-next" data-parent=".accoring">
<asp:HiddenField ID="hdCuisineID" runat="server" Value='<%# Eval("ID") %>' />
<asp:CheckBox runat="server" Text='<%# Eval("CuisineName")%>' CssClass="ui-checkboxcuisine" ID="chk11" />
</a>
</div>
<div class="panel-collapse collapse">
<div class="panel-body padd_null text-left">
<div class="driving-license-kind">
<asp:Repeater ID="RptItems" runat="server">
<ItemTemplate>
<div class="checkbox_accor">
<div id="chkdiv">
<asp:HiddenField ID="hdRID" runat="server" Value='<%# Eval("RID") %>' />
<asp:CheckBox runat="server" Text='<%# Eval("RestaurantTitle")%>' CssClass="ui-checkbox " />
</div>
</div>
</ItemTemplate></asp:Repeater>
</div>
</div>
</div>
</div>
</ItemTemplate></asp:ListView>
<asp:Button ID="btndone" runat="server" class="btn accor_btn pull-right test" Text="Done" OnClick="btndone_Click" />
</div>
</div>
</div>
</div>
</div>
<div class="row ">
<div class="col-md-12 col-sm-12 col-xs-12" data-wow-delay="0s">
<asp:ListView ID="lvRestaurants" runat="server" OnItemCommand="lvRestaurants_ItemCommand">
<ItemTemplate>
<div class="a_brandstore_details12 ">
<div class="a_pro_inner">
<div class="a_brand_logo">
<asp:Image runat="server" ID="Image2" Width="133px" Height="113px" ImageUrl='<%# Eval("ImagePath")%>' /></div>
<div class="a_details fix_width">
<div class="a_name">
<asp:Label ID="lbl_Resttitle" runat="server" Text='<%# Eval("RestaurantTitle")%>'></asp:Label></div>
<div class="a_address123">
<div class="a_brad_food">
<asp:Label ID="lbl_Cuisines" runat="server" Text='<%# Eval("CuisineName")%>'></asp:Label></div>
<div class="a_order_rating">
<img src="/CustomerPortalTemplate/images/rating.jpg"></div>
</div>
</div>
<div class="brand_details">
<div class="a_address123">
<div class="a_brad_open">
Open at :
<asp:Label Text='<%# Eval("OpenTime") %>' runat="server" />
</div>
<div class="a_deli_time">Delivery Fee : $ 1.0</div>
<div class="a_order">Minimum Order :
<asp:Label Text='<%# Eval("MinimumOrder") %>' runat="server" /></div>
<div class="avilable_range">
<div class="icons_place"><asp:Image ImageUrl='<%# (bool)Eval("WirelessFacility")==true ? "/CustomerPortalTemplate/img/wi-fi.png" : "/CustomerPortalTemplate/img/wi-fi_r.png" %>' runat="server"/></div>
<div class="icons_place"><asp:Image ImageUrl='<%# (bool)Eval("ParkingFacility")==true ? "/CustomerPortalTemplate/img/parking.png" : "/CustomerPortalTemplate/img/parking_r.png" %>' runat="server" /></div>
<div class="icons_place"><asp:Image ImageUrl='<%# (bool)Eval("DisableAccess")==true ? "/CustomerPortalTemplate/img/disabled.png" : "/CustomerPortalTemplate/img/disabled_r.png" %>' runat="server" /></div>
</div>
<asp:Label ID="lbldist" runat="server" Text='<%# Eval("Distance")%>' Visible="false"></asp:Label>
</div>
</div>
<div class="bottom_buttons">
<div class="button_div text-left fix_width ">
<input type="button" value="Group Order" class="btn restaurant_btn ">
</div>
<div class="button_div text-left padd_left_50">
<input type="button" value="Book Table" class="btn restaurant_btn ">
</div>
<div class="button_div text-left">
<asp:Button ID="btnorder" class="btn restaurant_btn" Text='<%# Eval("BUTTONNAME")%>' CommandArgument='<%#Eval("ID")+ ","+Eval("RestaurantTitle") %>' CommandName="OrderRestId" runat="server"></asp:Button>
</div>
</div>
<div class="a_brand_offer123 hidden-390" style="background: url(/CustomerPortalTemplate/images/offer-bg.png) no-repeat">
<span class="offer">20%</span><br />
<span class="offer">OFF</span>
</div>
</div>
</div>
</ItemTemplate>
</asp:ListView>
</div>
</div>
</div>
</div>

Page content disappear after timer ticks

I am using UpdatePanel control to update charts on my page after a certain time. I faced a problem that when the timer ticks, all charts disappear. I traced and found nothing error. Can anyone help me on this?
Here is a sample of the .aspx file
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:ScriptManager ID="ScriptManager1" runat="server"> </asp:ScriptManager>
<asp:Timer ID="Timer1" runat="server" OnTick="Timer1_Tick" Interval="120000">
</asp:Timer>
<div class="row">
<div class="col-lg-4 col-md-4">
<asp:DropDownList ID="ddlDuration" runat="server" AutoPostBack="true" OnSelectedIndexChanged="ddlDuration_SelectedIndexChanged" CssClass="form-control" Style="margin-left: 5px;">
<asp:ListItem Value="1">Today</asp:ListItem>
<asp:ListItem Value="3">A week ago</asp:ListItem>
<asp:ListItem Value="2">A month ago</asp:ListItem>
<asp:ListItem Value="4">A year ago</asp:ListItem>
</asp:DropDownList>
</div>
<div class="col-lg-8 col-md-8">
<div class="col-lg-1 col-md-1">
<label class="control-label">From Date:</label>
</div>
<div class="col-lg-3 col-md-3">
<asp:TextBox ID="txtDateFrom" runat="server" CssClass="form-control"></asp:TextBox>
</div>
<div class="col-lg-1 col-md-1">
<label class="control-label">To Date:</label>
</div>
<div class="col-lg-3 col-md-3">
<asp:TextBox ID="txtDateTo" runat="server" CssClass="form-control"></asp:TextBox>
</div>
<asp:Button ID="btnGetReport" runat="server" Text="Apply" CssClass="btn btn-success" Style="background-color: #8B0000; border: #8B0000;" OnClick="btGetReport_Click"></asp:Button>
<div class="row">
<asp:Label ID="dterror" runat="server" />
</div>
<hr />
<div id="chart">
<div class="row">
<div class="col-md-6">
<div class="panel panel-primary">
<div class="panel-body">
<div id="ComplaintsByStatus">
</div>
</div>
</div>
</div>
</div>
</ContentTemplate>
</asp:UpdatePanel>
and here is part of the code behind
protected void Timer1_Tick(object sender, EventArgs e)
{
UpdateChart();
}
here is a screen shot of what I get before timer ticks
and this is what I get after
Thanks in advance.

Add Form in a Modal

I making an add form in my modal. The modal contains 2 dropdownlists, 4 textboxes (1 hidden) and a button for adding.
I bind my dropdown list for the item category then bind my other dropdown list for the item name. However when I change my Item Category in my dropdown list the dropdown list for my item name is not responding or it not binding. Can anyone help me?
<div id="addModal" class="modal fade">
<div class="modal-dialog modal-md">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title">Add Item</h4>
</div>
<div class="modal-body">
<div class="form-inline form-group">
<asp:Label ID="Label1" CssClass="control-label col-xs-3" runat="server" Text="Category:"></asp:Label>
<div class="col-xs-offset-3">
<asp:DropDownList ID="drpCategory" runat="server" CssClass="form-control col-xs-5" OnTextChanged="drpCategory_TextChanged" />
</div>
</div>
<div class="form-inline form-group">
<asp:Label ID="Label2" CssClass="control-label col-xs-3" runat="server" Text="Item Name:"></asp:Label>
<div class="col-xs-offset-3">
<asp:TextBox ID="txtitem" runat="server" CssClass="form-control col-xs-5" Visible="false" />
<asp:DropDownList ID="drpItem" runat="server" CssClass="form-control col-xs-5" Visible="true" />
</div>
</div>
<div class="form-inline form-group">
<asp:Label ID="Label3" CssClass="control-label col-xs-3" runat="server" Text="Unit:"></asp:Label>
<div class="col-xs-offset-3">
<asp:TextBox ID="txtUnit" runat="server" CssClass="form-control col-xs-5" Enabled="false" />
</div>
</div>
<div class="form-inline form-group">
<asp:Label ID="Label4" CssClass="control-label col-xs-3" runat="server" Text="Quantity:"></asp:Label>
<div class="col-xs-offset-3">
<asp:TextBox ID="txtQty" runat="server" CssClass="form-control col-xs-3" type="number" min="1" onkeypress="return isNumberKey(event)" />
</div>
</div>
</div>
</div>
<div class="modal-footer">
<asp:Button runat="server" ID="btnADD" CssClass="btn btn-sm" OnClick="btnADD_Click" Text="Add" />
</div>
</div>
</div>
then this is the code behind:
public void drpCategory_TextChanged(object sender, EventArgs e)
{
if (drpCategory.Text == "Others")
{
drpItem.Visible = false;
txtitem.Visible = true;
}
else
{
byCateg();
DataBind();
drpItem.Visible = true;
txtitem.Visible = false;
}
}
Is there a problem in my code?

Develop Reference

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

UpdateProgress not working on secound click - c#

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