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Radio Button in Tree list find control

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TreeList
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Prassin
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Prassin asked on 29 Jun 2012, 10:05 AM
Hi all,

I have a tree list and 2 radio button under this tree list... when i try to find the radio button on my tree list its state has been always checked false.. i have assigned the auto postback .. but its not working it seems..

Source is 
<td>
  <asp:RadioButton ID="rbDepPer" runat="server" GroupName="dep" />
  <telerik:RadNumericTextBox ID="txtBoxDepPer" Text='<%# Bind("DepPer") %>' runat="server">
  </telerik:RadNumericTextBox>
 </td>
  <td>
  Depreciation Year:
 </td>
 <td>
<asp:RadioButton ID="rbDepYear" runat="server" GroupName="dep" />
 <telerik:RadNumericTextBox ID="txtBoxDepYear" Text='<%# Bind("DepYear") %>' runat="server"
 Width="300px" >
 </telerik:RadNumericTextBox>
   </td>
Code Behind
Protected Sub RadTreeList1_ItemCreated(ByVal sender As Object, ByVal e As Telerik.Web.UI.TreeListItemCreatedEventArgs) Handles RadTreeList1.ItemCreated
       If TypeOf e.Item Is TreeListEditFormItem AndAlso DirectCast(e.Item, TreeListEditFormItem).IsInEditMode Then
           Dim item As TreeListEditableItem = TryCast(e.Item, TreeListEditableItem)
           Dim rad1 As RadioButton = DirectCast(item.FindControl("rbDepPer"), RadioButton)
           Dim rad2 As RadioButton = DirectCast(item.FindControl("rbDepYear"), RadioButton)
           Dim textBox = TryCast(item.FindControl("txtBoxDepPer"), RadNumericTextBox)
           Dim textBox2 = TryCast(item.FindControl("txtBoxDepYear"), RadNumericTextBox)
           rad1.AutoPostBack = True
           rad2.AutoPostBack = True
           If rad1.Checked = True Then
               textBox.Enabled = True
               textBox2.Enabled = False
           ElseIf rad2.Checked = True Then
               textBox2.Enabled = True
               textBox.Enabled = False
           End If
       End If
   End Sub


I need to set visibility of that text box control while clicking the radio button..
Please help..


Regards,

Prassin

9 Answers, 1 is accepted

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Prassin
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answered on 03 Jul 2012, 10:03 AM
Hi all..

On a big trouble.. please help...


Regards

Prassin
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Marin
Telerik team
answered on 05 Jul 2012, 08:03 AM
Hello,

 You can handle the CheckedChanged event of the RadioButton - this way you can perform the necessary action when the button is checked or unchecked.

Private Sub rad_CheckedChanged(sender As Object, e As EventArgs) Handles rbDepPer.CheckedChanged
    Dim rad = TryCast(sender, RadioButton)
    Dim textBox = TryCast(TryCast(rad.NamingContainer, TreeListDataItem).FindControl("txtBoxDepPer"), RadNumericTextBox)
    textBox.Visible = rad.Checked
End Sub

All the best,
Marin
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Prassin
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answered on 05 Jul 2012, 09:48 AM
Hi Marin,


how can i get that radio button checked event in code behind... tree list containing that particular radio button... 

please help..

Regards

Prassin
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Princy
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answered on 05 Jul 2012, 11:11 AM
Hello,

Try attaching the event as shown below.
C#:
protected void RadTreeList1_ItemCreated(object sender, Telerik.Web.UI.TreeListItemCreatedEventArgs e)
{
 if (e.Item is TreeListEditFormItem && ((TreeListEditFormItem)e.Item).IsInEditMode)
 {
   TreeListEditFormItem item = e.Item as TreeListEditFormItem ;
  RadioButton rad2 = (RadioButton)item.FindControl("RadioButton2");
  rad2.CheckedChanged += new EventHandler(rad2_CheckedChanged);
 }
}
void rad2_CheckedChanged(object sender, EventArgs e)
{
}

Thanks,
Princy.
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Prassin
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answered on 05 Jul 2012, 11:19 AM
Hi Princy..

am work with vb.net... in the case i try to convert this code as vb.. its show an error like "Public Event CheckedChanged (sender as object, e as system.eventArgs)is an event and cannot be called directly use a RaiseEvent statement to Raise an Event"

i dont know what i have to do for this..


Prassin
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Princy
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answered on 06 Jul 2012, 05:07 AM
Hello,

Here is the code in VB.
VB:
Protected Sub RadTreeList1_ItemCreated(sender As Object, e As Telerik.Web.UI.TreeListItemCreatedEventArgs)
    If TypeOf e.Item Is TreeListEditFormItem AndAlso DirectCast(e.Item, TreeListEditFormItem).IsInEditMode Then
        Dim item As TreeListEditFormItem = TryCast(e.Item, TreeListEditFormItem)
        Dim rad2 As RadioButton = DirectCast(item.FindControl("RadioButton2"), RadioButton)
        rad2.CheckedChanged += New EventHandler(rad2_CheckedChanged)
    End If
End Sub
Private Sub rad2_CheckedChanged(sender As Object, e As EventArgs)
End Sub

Thanks,
Princy.
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Prassin
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answered on 06 Jul 2012, 05:13 AM
 Hi Princy.. 
Thanks for you replay...
But i am getting the same error..

Please find the attachment...


Regards,

Prassin
0
Marin
Telerik team
answered on 06 Jul 2012, 12:57 PM
Hello,

 The proper way to add an event handler in VB code-behind is the following:

AddHandler rad2.CheckedChanged, AddressOf rad2_CheckedChanged

The code converters sometimes do not handle this very well.

Kind regards,
Marin
the Telerik team
If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed now.
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Prassin
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answered on 07 Jul 2012, 05:44 AM
Hi all,,

When i try to achieve my requirement that time its show and error message ... please look up the code and source .. and also attached error message to this post.. please look up and help...
Aspx:
<fromtemplate>
<table>
   <tr>
      <td>
           Depreciation %:
          </td>
           <td>
       <asp:RadioButton ID="rbDepPer" runat="server" GroupName="dep" />
       <telerik:RadNumericTextBox ID="txtBoxDepPer" Text='<%# Bind("DepPer") %>' runat="server">
            </telerik:RadNumericTextBox>
                   </td>
                  <td>
                  Depreciation Year:
                    </td>
                   <td>
                  <asp:RadioButton ID="rbDepYear" runat="server" GroupName="dep" />
  <telerik:RadNumericTextBox ID="txtBoxDepYear" Text='<%# Bind("DepYear") %>' runat="server"
                     Width="300px" >
                  </telerik:RadNumericTextBox>
           </td>
                 </tr>
</table>
</fromtemplate>
Code Behind

Protected Sub RadTreeList1_ItemCreated(ByVal sender As Object, ByVal e As Telerik.Web.UI.TreeListItemCreatedEventArgs) Handles RadTreeList1.ItemCreated
      
       If TypeOf e.Item Is TreeListEditFormItem AndAlso DirectCast(e.Item, TreeListEditFormItem).IsInEditMode Then
           Dim item As TreeListEditFormItem = TryCast(e.Item, TreeListEditFormItem)
           Dim rad1 As RadioButton = DirectCast(item.FindControl("rbDepPer"), RadioButton)
           Dim rad2 As RadioButton = DirectCast(item.FindControl("rbDepYear"), RadioButton)
           rad1.AutoPostBack = True
           rad2.AutoPostBack = True
           AddHandler rad1.CheckedChanged, AddressOf rad1_CheckedChanged
           AddHandler rad2.CheckedChanged, AddressOf rad2_CheckedChanged
           Dim rad = TryCast(sender, RadioButton)
          
       End If
   End Sub
 
   Private Sub rad2_CheckedChanged(ByVal sender As Object, ByVal e As EventArgs)
       Dim rad = TryCast(sender, RadioButton)
       Dim textBox = TryCast(TryCast(rad.NamingContainer, TreeListDataItem).FindControl("txtBoxDepPer"), RadNumericTextBox)
       textBox.Enabled = rad.Checked
   End Sub
   Private Sub rad1_CheckedChanged(ByVal sender As Object, ByVal e As EventArgs)
       Dim rad = TryCast(sender, RadioButton)
       Dim textBox2 As RadNumericTextBox = TryCast(TryCast(rad.NamingContainer, TreeListDataItem).FindControl("txtBoxDepYear"), RadNumericTextBox)
       textBox2.Enabled = rad.Checked
   End Sub


please find the attachment 

Regards,

Prassin
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Prassin
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Prassin
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Marin
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Princy
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