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• mac Intermediate

  Posted on Jun 24, 2011 (permalink)

  I am trying to get a filestream opened via a button on each of my rows in a radgrid.
  Having trouble doing so. Can someone indicate the issue?
  
  reviewed the following already:
  http://www.telerik.com/help/aspnet-ajax/ajax-exclude.html
  http://www.telerik.com/help/aspnet-ajax/ajax-ajaxmanager.html
  
  Environment:
  Master page contains Radscriptmanager.
  Default.aspx contains RadAjaxmanager
  associated controls contain radajaxmanagerproxy (I have many UCs with radajaxmanagerProxy)
  
  UC1 contains standard radgrid:
  

  <telerik:RadGrid ID="FileGrid" runat="server"  >

  <MasterTableView CssClass="SubUserinfo" AutoGenerateColumns="false" DataKeyNames="PictureID" ShowHeader="false">

  <Columns>

  <telerik:GridButtonColumn CommandName="Delete" ConfirmText="Are you sure?" ButtonType="ImageButton" ></telerik:GridButtonColumn>

  <telerik:GridTemplateColumn>

  <ItemTemplate>

             <asp:Button ID="launcher" runat="server" Text="view" CommandArgument='<%#Eval("PictureID") %>'

                       onclick="launcher_Click" />

  </ItemTemplate>

  </telerik:GridTemplateColumn>

  <telerik:GridBoundColumn DataField="Title" />

  </Columns>

  </MasterTableView>

  </telerik:RadGrid>

  
  UC1 contains the following JS:

     <telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">

               <script type="text/javascript">

                  function realPostBack(eventTarget, eventArgument) {

                      $find("<%= FileGrid.ClientID %>").__doPostBack(eventTarget, eventArgument);

                          }

      </script>

  </RadCodeBlock>

  
  Looked at a couple different ways of getting the ajaxification of 'launcher' button disabled in the grid
  

  Protected Sub FileGrid_ItemCreated(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles FileGrid.ItemCreated

        Dim rsm As RadScriptManager = Page.Master.FindControl("rsm") 'the radscript manager in master file

   

        If TypeOf e.Item Is GridDataItem Then

            Dim GI As GridDataItem = e.Item

            Dim b As Button = GI.FindControl("Launcher")

            '  b.Attributes.Add("onclick", String.Format("realPostBack('{0}', ''); return false;", b.UniqueID)) 'tried to use the JS as per sample.

            rsm.RegisterPostBackControl(b)

        End If

    End Sub

  
  My Launcher_Click events calls for a response.binarywrite(bytes)
  

  Protected Sub launcher_Click(ByVal sender As Object, ByVal e As EventArgs)

   

          Dim PID As Integer = DirectCast(sender, System.Web.UI.WebControls.Button).CommandArgument

   

          Dim db As settingsDataContext = New settingsDataContext

          Dim var = From x In db.TBL_Files Where x.PictureID = PID Select x

   

          For Each item In var

              '  a bunch of response calls

              Response.BinaryWrite(buffer)

              Response.Flush()

              Response.Clear()

   

   

          Next

   

   

      End Sub

  
  
  
  

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