how to avoid PostBack during fileupload?

[sudheer]

Hai All,

        I am using fileupload inside Radgrid.I have several tabs in my page.but while using document upload page in the application,It is doing a postback.I would like to know about how to avoid this post back in my page.here is the code which i used in my application:

 

 aspx page:

 

<

telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server" ClientEvents-OnRequestStart="conditionalPostback">

 

 

<

telerik:RadProgressManager ID="RadProgressManager1" runat="server" />

 

 

<telerik:RadGrid ID="RGDocuments"  >

 

 

<PagerStyle Mode="NextPrevAndNumeric" />

 

 

<MasterTableView Width="100%" CommandItemDisplay="Top" DataKeyNames="PKID,DocumentType,DocumentName,UploadedTime,DocumentExpiryDateFlag,DocumentExpiryDate">

 

 

<Columns>

 

<

telerik:GridTemplateColumn HeaderButtonType="TextButton" UniqueName="Upload" HeaderText="File Name">

 

 

 

 

<ItemTemplate>

 

 

 

 

<asp:Label runat="server" ID="lblFileName" Text='<%# Eval("FileName") %>' />

 

 

 

 

</ItemTemplate>

 

 

 

 

<EditItemTemplate>

 

 

 

 

<asp:FileUpload Width="400" BorderColor="AliceBlue" onclick="return Check()" ID="RadUpload1"

 

 

 

 

runat="server" />

 

 

 

 

</EditItemTemplate> 

 

 

 

</telerik:GridTemplateColumn>

 

</Columns>  

 

</MasterTableView>

 

 

</telerik:RadGrid>

aspx.cs Code

 

 

protected void RGDocuments_ItemDataBound(object sender, GridItemEventArgs e)

 

{

 

 

 

 

FileUpload upload = (FileUpload)e.Item.FindControl("RadUpload1");

 

 

 

RadAjaxPanel1.ResponseScripts.Add(

string.Format("window['UploadId'] = '{0}';", upload.ClientID));
 

}