Inserting a userControl in a specific radGrid cell

[Sammy78]

Hi,
I was wondering if anyone could help me out. I'm trying to add a simple userControl to only one cell of a radGrid. I don't need to repeat it in every cell of that column (since the rest of the column is supposed to be text) and the radGrid has more than one row (4 by 4 to be exact and my uc must be in the bottom one on the right).
Any help would be greatly appreciated.

Thanks a lot
Sam

[Princy]

Hello,

You can add a UserControl in specific cell of RadGrid by using following code snippet.

C#:

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
   {
       if (e.Item is GridDataItem)
       {
           GridDataItem item = (GridDataItem)e.Item;
           if (item.ItemIndex == 3)
           {
               UserControl uc = (UserControl)Page.LoadControl("~/WebUserControl.ascx"); //Path to your user control
               item["ColumnUniqueName"].Controls.Add(uc);
           }
       }
   }
   protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
   {
       if (e.Item is GridDataItem)
       {
           GridDataItem item = (GridDataItem)e.Item;
           if (item.ItemIndex == 3)
           {
                UserControl uc = (UserControl)Page.LoadControl("~/WebUserControl.ascx");//Path to your user control
                item["ColumnUniqueName"].Controls.Add(uc);
           }
       }
   }

Thanks,
Princy.

[Sammy78]

Thanks a lot for the reply, Princy.
I'll try it out as soon as I can and will get back to you with the results.

Again, thank you
Sam

[Sammy78]

Hi Princy,
I just wanted to let you knowe that your snippet worked like a charm. Thanks a lot for the help. Now all I need to figure out is how to get the values of the textboxes that are in the userControl. :)

Thanks again.
Sam

[Princy]

Hello,

 I guess you want to access the TextBox placed inside UserControl on an external event other than grid events. If so, you can access UserControl first using its ID, which is set in ItemCreated event and then the embedded TextBox control using FindControl() method. Check out the following code snippet.

C#:

protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
   {
       if (e.Item is GridDataItem)
       {
           GridDataItem item = (GridDataItem)e.Item;
           if (item.ItemIndex == 3)
           {
               UserControl uc = (UserControl)Page.LoadControl("~/WebUserControl.ascx");
               uc.ID = "MyUserControl";
               item["ColumnUniqueName"].Controls.Add(uc);
           }
       }
   }
   protected void Button1_Click(object sender, EventArgs e)
   {
       GridDataItem item = (GridDataItem)RadGrid1.MasterTableView.Items[3]; // access the corresponding grid row
       UserControl uc = (UserControl)item["ColumnUniqueName"].FindControl("MyUserControl"); // access UserControl
       TextBox txt = (TextBox)uc.FindControl("TextBox1");//access the TextBox
       string value = txt.Text;
   }

Thanks,
Princy.

[Sammy78]

Hi Princy,
thanks for another quick reply. That's exactly what I'm trying to do. The only difference is that my userControl is built dynamically. Basically, it's a placeholder in which I add radNumericTextboxes, depending on the number entered in the previous page (3 users = 3 boxes). Here is the code:

VB:

Dim nbreVoyageurs As Integer = 'number of clients


        Dim deuxiemeLigne As Boolean = False

        Dim i As Integer = 0

        Dim tableAnnulation As New Table

        Dim tRow As New TableRow

 

         

        For i = 0 To nbreVoyageurs - 1

            Dim tCell As New TableCell

 

            TextBoxAnnul = New Telerik.Web.UI.RadNumericTextBox

            TextBoxAnnul.Width = 60

            TextBoxAnnul.Skin = "Windows7"

            TextBoxAnnul.MaxValue = 200000

            TextBoxAnnul.MinValue = 0

            TextBoxAnnul.MaxLength = 3

            TextBoxAnnul.NumberFormat.DecimalDigits = 2

            TextBoxAnnul.NumberFormat.GroupSeparator = " "

            TextBoxAnnul.AllowOutOfRangeAutoCorrect = True

            TextBoxAnnul.ShowButton = False

            TextBoxAnnul.Text = 'text source

 

            If (i < 6) Then   'Pour inscrire les composantes dans la première ligne du tableau

                TextBoxAnnul.ID = "AnnulVoy" + (i + 1).ToString

                lblAnnulVoyageur = New Label

                lblAnnulVoyageur.Text = "Voyageur_" + (i + 1).ToString + ": "

                lblAnnulVoyageur.ID = "lblAnnulVoyageur" + (i + 1).ToString

 

            Else    'si on est rendu au 6ième élément, il faut changer de ligne du tableau

                If deuxiemeLigne = False Then

                    tableAnnulation.Rows.Add(tRow)

                    deuxiemeLigne = True

                    tRow = New TableRow

 

                    TextBoxAnnul.ID = "AnnulVoy" + (i + 1).ToString

                    lblAnnulVoyageur = New Label

                    lblAnnulVoyageur.Text = "Voyageur_" + (i + 1).ToString + ": "

                    lblAnnulVoyageur.ID = "lblAnnulVoyageur" + (i + 1).ToString

 

                Else    'si on est déjà dans la deuxième ligne du tableau

 

                    TextBoxAnnul.ID = "AnnulVoy" + (i + 1).ToString

                    lblAnnulVoyageur = New Label

                    lblAnnulVoyageur.Text = "Voyageur_" + (i + 1).ToString + ": "

                    lblAnnulVoyageur.ID = "lblAnnulVoyageur" + (i + 1).ToString

 

                End If

 

            End If

            tCell.Controls.Add(lblAnnulVoyageur)

            tRow.Cells.Add(tCell)

            tCell = New TableCell

            tCell.Controls.Add(TextBoxAnnul)

            tRow.Cells.Add(tCell)

 

        Next

 

        tableAnnulation.Rows.Add(tRow)

 

        phNbreVoyageurs.Controls.Add(tableAnnulation)

I tried your code and it works great, but I can't get the UserControl, for some reason. Here is what I tried:

VB:

Protected Sub btnGetValue_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnGetValue.Click

    Dim item As GridDataItem = DirectCast(rgRecommandation.MasterTableView.Items(3), GridDataItem)
    Dim uc As UserControl = DirectCast(item("Description").FindControl("NbreVoyageurs"), UserControl)
    Dim txt As RadNumericTextBox = DirectCast(uc.FindControl("AnnulVoy1"), RadNumericTextBox)
    lblMontant.Text = txt.Text
End Sub

If you have any idea as to why I can't get any value for "uc", I would be very greatful.

Thanks again for all the help
Sam

[Sammy78]

Yes! I managed to get my value.
I reviewed your example and noticed that I had forgotten to add the id when I added the UC in the radGrid.
Seriously, thanks for all the help.

Have a good day.
Sincerely yours
Sam