Page content disappear after timer ticks

Page content disappear after timer ticks - c#

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.

Related

Unable to trigger onchange event from select tag in ASP.Net

I want to change the textboxes that should be displayed based on accountType the user selects. However, the onchange event attached to select is not getting triggered. Any heads up?
This is the select tag.
<div class="col-md-12 form-group" style="color:black">
<select name="accountTypes" id="accountTypes" runat="server" onchange="javascript:document.forms[0].submit();" onserverchange="accountType_Changed">
<option value="customer">Customer</option>
<option value="pharmacy">Pharmacy</option>
<option value="doctor">Doctor</option>
</select>
</div>
The accountType_Changed function is:
void accountType_Changed(Object sender, EventArgs e)
{
cnic.Text = accountTypes.SelectedItem.Value;//or accountTypes.SelectedItem.Text
}
Edit:
Based on the solution proposed by #mahesh_b, following edits were made that fixed the problem:
protected void Page_Load(object sender, EventArgs e)
{
this.accountTypes.Attributes.Add("onchange", Page.ClientScript.GetPostBackEventReference(this.accountTypes, this.accountTypes.ID));
}
protected void accountType_Changed(object sender, EventArgs e)
{
cnic.Text = "Working!!!"; //accountTypes.SelectedItem.Value;//or accountTypes.SelectedItem.Text
}
Edit 2: Layout Rendering Issue after adding partial refresh
Login.aspx:
<asp:ScriptManager EnablePartialRendering="true" ID="scriptManager" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<section class="login_part section_padding ">
<div class="container">
<div class="row align-items-center">
<div class="col-lg-6 col-md-6">
<div class="login_part_text text-center">
<div class="login_part_text_iner">
<h2>New to PHS?</h2>
<div class="row">
<div class="column col-md-12 form-group p_star">
<div class="col-md-12 form-group p_star">
<asp:TextBox ID="firstname" placeholder="First Name" class="form-control" runat="server">
</asp:TextBox>
</div>
</div>
<div class="column col-md-12 form-group p_star">
<div class="col-md-12 form-group p_star">
<asp:TextBox ID="lastname" placeholder="Last Name" class="form-control" runat="server">
</asp:TextBox>
</div>
</div>
</div>
<div class="col-md-12 form-group p_star">
<asp:TextBox ID="cnic" placeholder="CNIC" class="form-control" runat="server">
</asp:TextBox>
</div>
<div class="col-md-12 form-group p_star">
<asp:TextBox ID="email" placeholder="Email" class="form-control" runat="server">
</asp:TextBox>
</div>
<div class="col-md-12 form-group p_star">
<asp:TextBox ID="pass" placeholder="Password" class="form-control" runat="server">
</asp:TextBox>
</div>
<div class="col-md-12 form-group" style="color:black">
<select name="accountTypes" id="accountTypes" runat="server" onchange="javascript:document.forms[0].submit();" onserverchange="accountType_Changed">
<option value="customer">Customer</option>
<option value="pharmacy">Pharmacy</option>
<option value="doctor">Doctor</option>
</select>
</div>
<br /><br />
<div class="col-md-12 form-group p_star">
<asp:TextBox ID="taxNo" placeholder="Tax No" class="form-control" runat="server">
</asp:TextBox>
</div>
<div class="col-md-12 form-group p_star">
<asp:TextBox ID="pName" placeholder="Pharmacy Name" class="form-control" runat="server">
</asp:TextBox>
</div>
<div class="col-md-12 form-group p_star">
<asp:TextBox ID="pAddress" placeholder="Pharmacy Address" class="form-control" runat="server">
</asp:TextBox>
</div>
<div class="col-md-12 form-group p_star">
<asp:TextBox ID="cAddress" placeholder="Address" class="form-control" runat="server">
</asp:TextBox>
</div>
<div class="col-md-12 form-group p_star">
<asp:TextBox ID="docID" placeholder="Doctor Id" class="form-control" runat="server">
</asp:TextBox>
</div>
<div class="col-md-12 form-group p_star">
<asp:TextBox ID="experience" placeholder="Experience (Years)" class="form-control" runat="server">
</asp:TextBox>
</div>
<div class="col-md-12 form-group p_star">
<asp:TextBox ID="expertise" placeholder="Expertise (Specialization)" class="form-control" runat="server">
</asp:TextBox>
</div>
<br />
<p>Create an account today and avail the best deals on medics.</p>
<asp:Button ID="registerButton" class="btn_3" runat="server" width="50%" Text="Create Account" OnClick="createAccount_Clicked"/>
</div>
</div>
</div>
<div class="col-lg-6 col-md-6">
<div class="login_part_form">
<div class="login_part_form_iner">
<h3>Welcome Back ! <br>
Please Sign in now</h3>
<form class="row contact_form" action="#" method="post" novalidate="novalidate">
<div class="col-md-12 form-group p_star">
<input type="text" class="form-control" id="name" name="name" value=""
placeholder="Username">
</div>
<div class="col-md-12 form-group p_star">
<input type="password" class="form-control" id="password" name="password" value=""
placeholder="Password">
</div>
<div class="col-md-12 form-group">
<button type="submit" value="submit" class="btn_3">
log in
</button>
<a class="lost_pass" href="#">forget password?</a>
</div>
</form>
</div>
</div>
</div>
</div>
</div>
</section>
</ContentTemplate>
</asp:UpdatePanel>
These images show the original layout of select and what gets loaded after I change the value:
Original:
This is what gets loaded after changing the value in accountType:
How can I get to keep my original layout?

You need to use ASP.NET Dropdownlist with using AutoPostBack=true to trigger OnChange event:
<div class="col-md-12 form-group" style="color:black">
<asp:DropDownList id="accountTypes" AutoPostBack="True" OnSelectedIndexChanged="accountType_Changed" runat="server">
<asp:ListItem Value="account_type">Account Type</asp:ListItem>
<asp:ListItem Value="customer"> Customer </asp:ListItem>
<asp:ListItem Value="pharmacy"> Pharmacy </asp:ListItem>
<asp:ListItem Value="doctor"> Doctor </asp:ListItem>
</asp:DropDownList>
</div>
And server side accountType_Changed would be like this:
void accountType_Changed(Object sender, EventArgs e)
{
username.Text = accountTypes.SelectedItem.Value;//or accountTypes.SelectedItem.Text
}

For HTML controls use the server events, in your case OnServerChange event. In order the serverchange event to fire you have to explicitly submit the form or do a postback on onchange event. You can do this with below two options -
Submit the form on onchange event from client side:
<select name="accountTypes" id="accountTypes" runat="server"
onchange="javascript:document.forms[0].submit();" onserverchange="accountType_Changed">
Use the GetPostBackEventReference method from server side:
protected void Page_Load(object sender, EventArgs e)
{
this.accountTypes.Attributes.Add("onchange", Page.ClientScript.GetPostBackEventReference(this.accountTypes, this.accountTypes.ID));
}
You may have to also change the method signature to-
protected void accountType_Changed(object sender, EventArgs e)
{
}
Refer these threads to understand more on the same -
How to make HtmlSelect Control with OnChange event to trigger C# code behind function
OnServerChange event not firing
If your requirement can fit with changing to ASP.NET Drop down list then you can follow which Selim mentioned in another answer.

How to add RequiredFieldValidator on a Ajax Editor C#

I am trying to add validation on Editor but it cants work. here is my code
when I run this and fill field its give me an error.
<section style="padding-top: 120px" class="info-area pb-120 container-fluid">
<div class="container-fluid">
<div class="row align-items-center">
<div class="col-lg-12 no-padding info-area-left">
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<div class="form-horizontal" runat="server" id="FormControls">
<div class="form-group">
<label for="inputEmail3" class="col-sm-2 control-label">Your Name</label>
<div class="col-sm-10">
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="txtUserName" ForeColor="Red" Display="Dynamic" ValidationGroup="inq" ErrorMessage="Enter name"></asp:RequiredFieldValidator>
<asp:TextBox ID="txtUserName" CssClass="form-control text-uppercase" runat="server" placeholder="Your name"></asp:TextBox>
</div>
</div>
<div class="form-group">
<label for="inputPassword3" class="col-sm-2 control-label">Your Testimonial</label>
<div class="col-sm-10">
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ControlToValidate="Editor1" ForeColor="Red" Display="Dynamic" ValidationGroup="inq" ErrorMessage="Enter Testimonial"></asp:RequiredFieldValidator>
<cc1:Editor ID="Editor1" runat="server" placeholder="Testimonial" />
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<asp:Button ID="btnSend" OnClick="btnSend_Click" CssClass="primary-btn text-uppercase" ValidationGroup="inq" runat="server" Text="Send" />
</div>
</div>
</div>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</div>
</div>
</section>
may helps you

UpdateProgress not working on secound click

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 ..

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>
</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">
<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 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>
</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 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?

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