You can trigger a button click from the RadControl. It's clunky but it works.
aspx:
aspx.cs:
This will cause the RadControl to lose its list of uploaded files. I added some code in the btnDummy_Click to store the docs in my DB. I created a user control (RadAsyncUploaderExtender.ascx) to show these already uploaded files:
.ascx:
.ascx.cs:
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class UserControls_RadAsyncUploaderExtender : UserControl
{
protected void Page_Load(object sender, EventArgs e)
{
PopulateControl();
}
protected void PopulateControl()
{
Controls.Clear();
List<MyFile> myFiles = ...; // Get a list of files from wherever
for (int i = 0; i < myFiles.Count; i++)
{
Panel pnl = new Panel();
pnl.CssClass = "upload_item";
Label lbl = new Label();
lbl.CssClass = "upload_item_name";
lbl.Text = myFiles[i].FileName + myFiles[i].Extension;
Button btn = new Button();
btn.ID = string.Format("btn{0}", i);
btn.CssClass = "upload_item_remove";
btn.Text = "Remove";
// ID in the DB.
// I used a Session variable and an MD5 hash in cases where I
// did not want to store files in the DB directly.
btn.CommandArgument = myFiles[i].ID;
btn.Click += new EventHandler(btn_Click);
pnl.Controls.Add(lbl);
pnl.Controls.Add(btn);
Controls.Add(pnl);
}
}
void btn_Click(object sender, EventArgs e)
{
Button btn = null;
if (sender.GetType() != typeof(Button))
{
PopulateControl();
return;
}
btn = (Button)sender;
if (string.IsNullOrEmpty(btn.CommandArgument))
{
PopulateControl();
return;
}
// Get file to be deleted
int fileID = 0;
int.TryParse(btn.CommandArgument, out fileID);
List<MyFile> myFiles = ...; // Get a list of files from wherever
MyFile myFile = (from x in myFiles where x.ID == fileID select x).FirstOrDefault();
// Delete MyFile
PopulateControl();
}
}
And the .css: