Bind to textboxes based on selection of treeview nodes.

[Madhu Palakurthi]

Hi,

I calling this function from other page (gridview editclick event) .
 So then EditValue(refer code) has some value and binding in to treeview .

Private Sub BindTreeView(ByVal dt As DataTable, ByVal EditValue As String, ByVal searchedColumn As String)
        Try
            Dim siteData As New List(Of TreeViewCheckbox)()
            If dt IsNot Nothing AndAlso dt.Rows.Count > 0 Then
                siteData.Add(New TreeViewCheckbox(1, 0, "Select All"))

                Dim i As Integer = 0
                Do While (i < dt.Rows.Count)
                    Dim row As DataRow = dt.Rows(i)
                    Dim srColumn As String = row(searchedColumn)
                    i = (i + 1)
                    siteData.Add(New TreeViewCheckbox(i + 1, 1, srColumn))
                Loop
            End If

            If Not String.IsNullOrEmpty(EditValue) Then
                siteData.Add(New TreeViewCheckbox(1, 0, "Select All"))
                siteData.Add(New TreeViewCheckbox(2, 1, EditValue.Trim()))
            End If

            tvChkSearchResult.DataTextField = "Text"
            tvChkSearchResult.DataFieldID = "ID"
            tvChkSearchResult.DataFieldParentID = "ParentID"
            tvChkSearchResult.DataSource = siteData
            tvChkSearchResult.DataBind()

            If (siteData.Count = 0) Then
                RadWindowManager1.RadAlert("No results found,Please try again.", 330, 100, Nothing, Nothing)
            Else
                tvChkSearchResult.ExpandAllNodes()
                HideControls(True)
            End If
        Catch ex As Exception
            RadWindowManager1.RadAlert(ex.Message, 330, 100, Nothing, Nothing)
        End Try

    End Sub

Here adding in to siteData ...

If Not String.IsNullOrEmpty(EditValue) Then
                siteData.Add(New TreeViewCheckbox(1, 0, "Select All"))
                siteData.Add(New TreeViewCheckbox(2, 1, EditValue.Trim()))
            End If

Once datasource set by sitedata then I need to call event to fillup other 3 textboxes values that based on node value selected(edit value).

How I can do fill up textboxes ? please help me on this.

Thanks in advance ..

[Boyan Dimitrov]

Hello,

I would recommend you to use the server-side NodeDataBound event handler. You can access the current node using the e.Node expression and use its properties.

Protected Sub tvChkSearchResult_NodeDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadTreeNodeEventArgs) Handles tvChkSearchResult.NodeDataBound
   // here goes your custom logic to modify your text boxes using the current node object
    End Sub

Regards,
Boyan Dimitrov
the Telerik team