RadGrid with dynamic columns

[Johnny]

hi i adding columns to RadGrid on RadButton Click event
all working fine
when i sort the grid with Header Click or When i Filter the grid
the RadGrid disappeared i suspect the columns or removed automatically after that if i click any button to postback the RadGrid appear with dynamic columns but no data  inside the rows
this is my code

 

 

 

RadGrid1.Columns.Clear()
 Dim bc As New GridBoundColumn
 RadGrid1.MasterTableView.Columns.Add(bc)
 bc.DataField = "File Name"
 bc.HeaderText = "File Name"
 bc.SortExpression = "File Name"
 'bc.ItemStyle.Width = New Unit(80, UnitType.Pixel)
 bc = New GridBoundColumn
 RadGrid1.MasterTableView.Columns.Add(bc)
 bc.DataField = "File Path"
 bc.HeaderText = "File Path"
 bc.SortExpression = "File Path"
RadGrid1.DataSource = profiledatas
 RadGrid1.DataBind()

  

aspx 
 

 

<telerik:RadGrid ID="RadGrid1" AllowSorting="true" AllowFilteringByColumn="true"   AutoGenerateColumns="false"    runat="server">
        <MasterTableView>
                 <Columns>

                  </Columns>
                  <ItemStyle HorizontalAlign="Left" />
                   <HeaderStyle HorizontalAlign="Left" />
           </MasterTableView>
</telerik:RadGrid>

 

 my RadGrid inside RadAjaxPanel

 

how to solve this issue

[Daniel]

Hello Johnny,

There are three ways to create your control/structure programmatically:

• Dynamically defining the structure of a statically-declared grid
• Creating RadGrid on Page_Load
• Creating RadGrid on Page_Init

I'm afraid we do not support adding columns on button click.

Regards,
Daniel
the Telerik team

[Johnny]

Hi Daniel

  You mean i could create columns on_Page load and Page_Init event oni ah, hopeless

I m using  2011 Q2 controls, so the Telerik RadGrid doesn't support add columns on Button_Click or other events ?

You mean if i create columns on Page_Load or Page_Init oni the RadGrid will support Edit, Sorting, Filetering ................

[Johnny]

hi can u answer my question
cs i need to decide to use this RadGrid in my project or not

[Daniel]

Hello Johnny,

Indeed, you can create RadGrid using one of the approaches mentioned in my previous answer. This will ensure that the ViewState is tracked correctly and all of the built-in functions will work properly as expected.

Best regards,
Daniel
the Telerik team