why cant i find the control txt in this vb.net asp:repeater no matter what i do on rgroups itembound

StackOverflow https://stackoverflow.com/questions/5456602

  •  12-11-2019
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Question

i cant find the control txt which is a textbox in the repeater i have used the following on rgroups itemdatabound event

------------itemdatabound code 

Protected Sub rGroups_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.RepeaterItemEventArgs) Handles rGroups.ItemDataBound


Dim dv As DataRowView = TryCast(e.Item.DataItem, DataRowView)
If dv IsNot Nothing Then
  Dim rptOrderDetails As Repeater = TryCast(e.Item.FindControl("rSubgroups"), Repeater)
   Dim control1 As Control = rGroups.Items(0).FindControl("txt")
  Dim txtbox As TextBox = DirectCast(control1, TextBox)

    If rptOrderDetails IsNot Nothing Then

      Dim dv_co As New DataView(dssubmenu)

    dv_co.RowFilter = "groupId = '" + txtbox.Text + "'"
      rptOrderDetails.DataSource = dv_co

      rptOrderDetails.DataBind()
    End If
  End If
End Sub

------------repeater code

   <asp:Repeater ID="rGroups"  Runat="server">  
 <HeaderTemplate>

  <ul id="prod_nav" class="clearfix">  

   </HeaderTemplate>   
<ItemTemplate>        
<asp:TextBox ID="txt"  Text="<%#DataBinder.Eval(Container.DataItem,"groupid")%>" runat="server">     </asp:TextBox> 

<li class="top"><a href="05-Pink-02-Category-List.html" class="top_link">   <span class="down"> <%#DataBinder.Eval(Container.DataItem,"groupname")%></span></a>   
 <asp:Repeater ID="rSubgroups"  Runat="server">          
 <HeaderTemplate>              

<ul class="sub">          

    <li class="clearfix">    
                    <ul>       
 </HeaderTemplate>            <ItemTemplate> 

         <li><a href="partviewer.aspx?subgrp=<%#DataBinder.Eval(Container.DataItem,"subgroupId")%>">  <%#DataBinder.Eval(Container.DataItem,"subgroupname")%></a></li>  
      </ItemTemplate>        
  <FooterTemplate>                    </ul>                  </li>                </ul>            <        </FooterTemplate>


Was it helpful?

Solution

You will probably want to get the txt control for the databound item in the Repeater, not from the Repeater control itself. The eventargs argument for the ItemDataBound event contains the newly created RepeaterItem. It is from that item you want to retrieve your control:

Dim control1 As Control = e.Item.FindControl("txt")
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