Item Value from GridDataItem

[TadR]

 

In the ItemDataBound event we are no longer to retrieve the Item value using the following code and are getting the value of ' '

 

If TypeOf e.Item Is GridDataItem Then

 Dim dataItem As GridDataItem = DirectCast(e.Item, GridDataItem)

 Dim EAFID As String = NoNull(dataItem("row_ID").toString)

This seems to be after a recent update of telerik versions as we were getting valid values.

Any help or clues on why this method of access is not working?

[Jayesh Goyani]

Hello,

Protected Sub RadGrid1_ItemDataBound(sender As Object, e As GridItemEventArgs)

 

    If TypeOf e.Item Is GridDataItem Then

        Dim item As GridDataItem = TryCast(e.Item, GridDataItem)

        Dim strrow_ID As String = item("row_ID").Text ' for bound column

        Dim keyrow_ID As String = item.GetDataKeyValue("row_ID").ToString() ' using key value           

        Dim Labelrow_ID As String = TryCast(item.FindControl("Label1"), Label).Text ' Get label from ItemTemplate
      

    End If

End Sub

1. boundcolumn

<telerik:GridBoundColumn DataField="row_ID" UniqueName="row_ID" HeaderText="row_ID">
                   </telerik:GridBoundColumn>

2.datakey

<MasterTableView  DataKeyNames="row_ID">

3. lable in template column

<telerik:GridTemplateColumn>
                       <ItemTemplate>
                           <asp:Label ID="Label1" runat="server" Text='<%# Eval("row_ID") %>'></asp:Label>
                       </ItemTemplate>
                   </telerik:GridTemplateColumn>

Thanks,
Jayesh Goyani

[TadR]

Hello Jayesh:
Thank you for your response.
However, I can't figure out how your response code is different than my original post. Am I missing something?

If we use:

 
Dim EAFID As String = NoNull(dataItem("row_ID").Text) gives us back a non breaking space as value

           
Dim EAFID As String = NoNull(e.Item.DataItem("row_ID")) gives us back the correct value.

[Jayesh Goyani]

Hello,

I have shown three different way to get datafield in ItemDataBound event.

if this code is not worked for you then please provide your code.

Thanks,
Jayesh Goyani

[Vijay]

TadR,

I ran into a similar problem after upgrading to the Q1 2013 AJAX controls, but for me I only had issues accessing the data for columns that were set to visible="false". Not sure if the same is true in your case. I found this thread about a breaking change and was able to resolve my issue by using display="false" instead of using the visible="false".

http://www.telerik.com/community/forums/aspnet-ajax/grid/breaking-change-hidden-column-cell-text-is-not-persisted-in-viewstate.aspx

Hope this helps,

Vijay

[Phil]

Another option if processing RadGrid_ColumnCreated is to set the set the .Visible=true and .Display=false. 

protected void RadGrid1_ColumnCreated(object sender, GridColumnCreatedEventArgs e)
 {

     if (e.Column.UniqueName == "ROWNO")
     {
         e.Column.HeaderText = "row no";  //probably not necessary used for debugging
         e.Column.Visible = true;   //setting false results in null value
         e.Column.Display = false;   //set true to see values
     }
}

[Josef Rogovsky]

Vijay, you just saved me a lot of frustration. Thank you!