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You can find a lot of debugging and deploying problems while developing applications in .NET and Visual Basic here. There are also some querying tips in SQL and typical source codes which might be useful shared here.

Redirecting and hiding URL

Problem : I wanted to make a link that will redirect the users to download a pdf file. Yet, I have to hide the URL, and can't let the users know the URL to the file.

Solution : I use repeater to hide the URL by using CommandArgument and CommandName attributes.

I make a repeater which looks more or less like this on the aspx:

<asp:repeater id="rpt" runat="server" onitemcommand="rpt_ItemCommand" onitemdatabound="rpt_ItemDataBound">
<asp:linkbutton id="linkFileName" runat="server" cssclass="link3"></asp:linkbutton>

Then on the CS:

protected void rpt_ItemDataBound(object sender, RepeaterItemEventArgs e)
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
ClassData classData = (classData)e.Item.DataItem;
LinkButton linkFileName = (LinkButton)e.Item.FindControl("linkFileName");
string fileName = classData.FileName;
linkFileName.Text = fileName;
linkFileName.CommandArgument = classData.FileName;

protected void rpt_ItemCommand(object source, RepeaterCommandEventArgs e)
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
Response.ContentType = "application/octet-stream";
Response.AddHeader("Content-Disposition", "attachment; filename=" + e.CommandArgument);
Response.WriteFile("D:\folder\" + e.CommandArgument);
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