Develop Reference

Get a value from Repeater in code-behind

<asp:Repeater ID="Repeater1" runat="server" DataSourceID="EntityDataSourceTeklifler">
<ItemTemplate>
<div class="panel panel-primary">
<div class="panel-body">
<strong>Teklif Kodu:</strong> <%#Eval("TeklifId") %><br />
<strong>Teklif Tarihi:</strong> <%#Eval("TeklifTarih") %><br />
<strong>Teklifi Hazırlayan:</strong> <%#Eval("Name") %> <%#Eval("Surname") %><br />
<strong>Firma Adı:</strong> <%#Eval("FirmaAdi") %><br />
<strong>Sipariş:</strong> <%#Eval("FUrunId") %><br />
<strong>Teklif Tutarı:</strong> <%#Eval("TeklifTutar") %><br />
</div>
</div>
</ItemTemplate>
</asp:Repeater>
As you can see I have a Repeater and it displays my data without a problem. I need to access TeklifIds in code-behind. I am going to make something like:
if(TeklifId == 1)
{
//do something
}
else if(TeklifId == 2)
{
//do something else
}
And to do this, I need to get all TeklifId while it is adding to the Repeater.

Ideally you should include the data withing some ASP.NET controls like Label, Textbox control within ItemTemplate tag because it is easy to work with them. But I am not sure why you are adding the normal html tags directly.
Anyways, to find the value you will have to find it within the ItemDataBound control of repeater control but for that you will have to make the strong tag a server control by adding runat="server" attrribute like this:-
<strong id="TeklifId" runat="server">Teklif Kodu:</strong> <%#Eval("TeklifId") %>
Then, add the ItemDataBound event in your repeatre control like this:-
<asp:Repeater ID="Repeater1" runat="server" OnItemCommand="Repeater1_ItemCommand"
Finally in the code behind you can find the value like this:-
protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.AlternatingItem ||
e.Item.ItemType == ListItemType.Item)
{
HtmlGenericControl TeklifId = e.Item.FindControl("TeklifId") as HtmlGenericControl;
string TeklifId = TeklifId.InnerText; //value here
}
}

Place TeklifId in a Label control so that you can use ID and FindControl to get the values like this:
<asp:Label ID="TeklifId" runat="server" Text='<%#Eval("TeklifId") %>'></asp:Label>
And then:
foreach (RepeaterItem item in Repeater1.Items)
{
var TeklifId = (Label)item.FindControl("TeklifId");
if (TeklifId == 1)
{
//do something
}
}

Repeater Code :
<td>
<span runat="server" id="lbBranchname" style="font-style:italic;"><%# Eval("branchname")%></span>
</td>
Code behind : rptBranch_ItemCommand
HtmlGenericControl lbBranchname = e.Item.FindControl("lbBranchname") as HtmlGenericControl;
BranchName = lbBranchname.InnerText;

Change Css class on a Panel thats located inside a Asp:repeater

Hello and thanks for taking your time to read this.
I'm trying to change the CSS class of a panel thats located inside a Repeater when I select a RadioButton.
<div>
<asp:RadioButtonList OnSelectedIndexChanged="RadioButtonList1_SelectedIndexChanged" AutoPostBack="true" ID="RadioButtonList1" RepeatDirection="Horizontal" runat="server">
<asp:ListItem Selected="True">Show Gallery</asp:ListItem>
<asp:ListItem>Show List</asp:ListItem>
</asp:RadioButtonList>
</div>
<div class="RpOutterFrame" runat="server" id="RpOutterFrame">
<asp:Repeater runat="server" ID="RP">
<ItemTemplate>
<panel class="ShowDiv" runat="server" id="RpInnerFrame">
<img runat="server" style="width: 80px;" id="ModelImg" class="ModelImg" src='<%# string.Format("~/Content/Img/ModelImg/{0}", Eval("Image")) %>' />
<br />
<%# Eval("Model") %>
</panel>
</ItemTemplate>
</asp:Repeater>
</div>
My C#:
protected void RadioButtonList1_SelectedIndexChanged(object sender, EventArgs e)
{
if (RadioButtonList1.Items[0].Selected == true)
{
RpOutterFrame.Attributes["class"] = "RpOutterFrame";
Panel panel = (Panel)this.FindControl("RpInnerFrame");
panel.CssClass = "ShowDiv2";
}
}
As you can see the Panel already has the class ShowDiv and then I would like it to change the class to ShowDiv2 when I select/click the Radiobutton.
Anyone who can help me figuar what I'm doing wrong or fix the code?

A Repeater's purpose is to repeat something. So normally it contains multiple elements. Therefore the RepeaterItem is the NamingContainer which must contain unqiue ID's and where you can find your controls via FindControl(ID).
So this does not work since this is the Page which is not the NamingContainer of the Panel:
Panel panel = (Panel)this.FindControl("RpInnerFrame");
panel.CssClass = "ShowDiv2";
You have to loop all items:
foreach(RepeaterItem item in RP.Items)
{
Panel panel = (Panel)item.FindControl("RpInnerFrame");
panel.CssClass = "ShowDiv2";
}
Apart from that you should use the ASP:Panel instead of Panel.
So change
<panel class="ShowDiv" runat="server" id="RpInnerFrame">
// ...
</panel>
to
<ASP:Panel CssClass="ShowDiv" runat="server" id="RpInnerFrame">
// ...
</ASP:Panel>

Asp.net repeater control with checkboxlist

Binding data to checkbox list inside a repeater controls ItemDataBound event.
Here is Aspx code:
<asp:Repeater ID="rptrSelectedRcds" runat="server">
<ItemTemplate>
<div id="groupsDiv" runat="server">
<div class="hidden" id="divGroupSelector" runat="server">
<asp:CheckBoxList runat="server" ID="chkLstGroups"
RepeatDirection="Vertical">
</asp:CheckBoxList>
</div>
<asp:Button ID="btnConfirmGroups" runat="server" Text="Confirm" />
</div>
</ItemTemplate>
</asp:Repeater>
Code used inside ItemDataBound to bind data to repeater control:
protected void rptrSelectedRcds_ItemDataBound(object sender, System.Web.UI.WebControls.RepeaterItemEventArgs e)
{
Int32 iProviderID = Convert.ToInt32(((Label)e.Item.FindControl("lblIndividualID")).Text);
HtmlGenericControl selectGroupsDiv = (HtmlGenericControl)e.Item.FindControl("divGroupSelector");
if (divGroupSelector != null)
{
CheckBoxList chkLstGroups = (CheckBoxList)e.Item.FindControl("chkLstGroups");
chkLstGroups.DataSource = GetStateGroupsByProvider(stateValue, iProviderID);
//This code line gives different values for each record
chkLstGroups.DataTextField = "Name";
chkLstGroups.DataValueField = "pkID";
chkLstGroups.DataBind();
}
}
I can see in firebug the ids for chkLstGroups are different, but values bind to it are same.I want different values for each different checkbox id generated as from method - GetStateGroupsByProvider
Please help me out..!
Thanks.!

How to get updated Textbox value from Repeater?

I have a repeater control as listed below. It has a textbox control. When a save button is clicked, I need to get the updated text from the textbox. I have the following code; but it gives me the old value when I take the textbox text.
How can we get the updated text?
Code Behind
protected void Save_Click(object sender, EventArgs e)
{
foreach (RepeaterItem item in repReports.Items )
{
if (item.ItemType == ListItemType.Item || item.ItemType == ListItemType.AlternatingItem )
{
string updatedEmail = ((TextBox)item.Controls[5]).Text;
string originalEmail = ((HiddenField)item.Controls[7]).Value;
}
}
}
Control Markup
<div class="repeaterTableBorder">
<asp:Repeater ID="repReports" runat="server">
<ItemTemplate>
<div id="repeaterIdentifier" class="repeaterIdentifier">
<div class="reportTitle">
<%# Eval("ReportName") + ":"%>
<asp:HiddenField ID="hdnLastChangeTime" runat="server" Value= '<%# ((DateTime)Eval("RecordSelectionTime")).ToString("MM/dd/yyyy hh:mm:ss.fff tt")%>' />
<asp:HiddenField ID="hdnReportID" runat="server" Value='<%# Eval("ReportTypeCode")%>' />
</div>
<div class="reportFrequency">
<%# " Frequency - Weekly" %>
</div>
</div>
<div class="reportContent">
<div class="repeaterLine">
<asp:TextBox ID="txtEmailRecipients" runat="server" class="textEdit"
Text='<%# Eval("ExistingRecipients") %>'
TextMode="MultiLine"></asp:TextBox>
<asp:HiddenField ID="hdnOriginalRecipients" runat="server" Value='<%# Eval("ExistingRecipients")%>' />
</div>
</div>
</ItemTemplate>
</asp:Repeater>
</div>

I assume that you are binding the Repeater to it's DataSource also on postbacks. You should do that only if(!IsPostBack). Otherwise the values will be overwritten.
protected void Page_Load(Object sender, EventArgs e)
{
if(!IsPostBack)
{
// databinding code here
}
}

Raise DataGrid ItemCommand event from Javascript

I am using a DataGrid to display data retrieved from a database and I was wondering if it is possible to raise the grid's ItemCommand event using Javascript.
The snippet below shows roughly what I am trying to do within onclick handler for the DIV removeProductButton. I don't want to use asp:Button or asp:LinkButton as currently the look and feel of the DIV is controlled using CSS and the code should work regardless of the type HTML element used to create the click-able trigger to allow for future look and feel customisations.
<asp:datagrid id="itemGrid" runat="server" cellPadding="0" AutoGenerateColumns="False" GridLines="None">
<Columns>
<asp:TemplateColumn>
<ItemTemplate>
<div class="items">
<div class="product_title"><%#Eval("ItemID")%>. <%#Eval("ItemDescription")%></div>
<div class="product_image">
<img id="productImage_<%#Eval("ItemID")%>" src="<%#Eval("ThumbnailURL")%>" />
</div>
<div class="buttons">
<div id="removeProductButton" class="buttonStandard" onclick="Do Something HERE...">Remove</div>
</div>
</div>
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
</asp:datagrid>
I have tried using the following code in the grid's ItemCreated event but was not able to get it working
private void itemGrid_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item ||
e.Item.ItemType == ListItemType.AlternatingItem)
{
dynamic itemData = e.Item.DataItem;
HtmlGenericControl removeProductButton = (HtmlGenericControl)e.Item.FindControl("removeProductButton");
removeProductButton.Attributes.Add("onclick", ClientScript.GetPostBackEventReference(removeProductButton, ""));
}
}
Any help would be greatly appreciated.

Add a hidden button to the ItemTemplate with your desired CommandName:
<asp:Button
ID="removeProductButton_hidden"
runat="server"
style="display:none;"
CommandName="YourCommandName"
Text="" />
Make sure that your 'Remove' div has the runat="server" attribute:
<div ID="removeProductButton" runat="server" class="buttonStandard">Remove</div>
Get rid of the grid ItemCreated handler and create a grid ItemDataBound handler that looks like this:
public void grd_ItemDataBound(object sender, DataGridItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
HtmlGenericControl removeProductButton = (HtmlGenericControl)e.Item.FindControl("removeProductButton");
Button removeProductButtonHidden = (Button)e.Item.FindControl("removeProductButton_hidden");
removeProductButton.Attributes.Add("onclick", ClientScript.GetPostBackEventReference(removeProductButtonHidden, ""));
}
}
So the entire grid definition would look like this:
<asp:DataGrid
runat="server"
ID="itemGrid"
OnItemCommand="itemGrid_ItemCommand"
OnItemDataBound="itemGrid_ItemDataBound">
<Columns>
<asp:TemplateColumn>
<ItemTemplate>
<asp:Button
ID="removeProductButton_hidden"
runat="server"
style="display:none;"
CommandName="YourCommandName"
Text="" />
<div class="items">
<div class="buttons">
<div ID="removeProductButton" runat="server" class="buttonStandard">Remove</div>
</div>
</div>
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
</asp:DataGrid>