NeedDataSource with RadGrid Dynamic Column Added Problem

[Anthony]

Here is my Code, Page_load method and RadGrid1_NeedDataSource.
The result is so weird, load in the 1 page, everything work find, when click next or 2nd page, the problem is occurs. The diagram show at Attach files.

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

 

        RadGrid1.ID = "RadGrid1"

        zzz.Controls.Add(RadGrid1)

 

        AddHandler Me.RadGrid1.NeedDataSource, New GridNeedDataSourceEventHandler(AddressOf Me.RadGrid1_NeedDataSource)

 

        RadGrid1.Visible = True

        RadGrid1.AllowPaging = True

        RadGrid1.AllowSorting = True

        RadGrid1.AllowMultiRowSelection = True

        RadGrid1.MasterTableView.AutoGenerateColumns = False

        RadGrid1.PageSize = 5

        RadGrid1.AutoGenerateColumns = False

        RadGrid1.MasterTableView.EditMode = GridEditMode.Batch

        RadGrid1.ClientSettings.Selecting.AllowRowSelect = True

        RadGrid1.EnableViewState = False

 

 

        RadAjaxManager1.EnableAJAX = True

 

    End Sub

 

 

 

Protected Sub RadGrid1_NeedDataSource(ByVal source As Object, ByVal e As Telerik.Web.UI.GridNeedDataSourceEventArgs)

 

        Dim ConnString As String = ConfigurationManager.ConnectionStrings("myConnectionString").ConnectionString

        Dim conn As SqlConnection = New SqlConnection(ConnString)

        Dim adapter As SqlDataAdapter = New SqlDataAdapter

        adapter.SelectCommand = New SqlCommand("SELECT * FROM Product", conn)

 

        conn.Open()

        Try

            adapter.Fill(myDataTable)

        Finally

            conn.Close()

        End Try

        RadGrid1.DataSource = myDataTable

 

        Dim boundColumn As GridBoundColumn

 

        For Each col As System.Data.DataColumn In myDataTable.Columns

            boundColumn = New GridBoundColumn()

            RadGrid1.MasterTableView.Columns.Add(boundColumn)

            boundColumn.DataField = col.ColumnName

            boundColumn.HeaderText = col.ColumnName

 

 

            If col.ColumnName = "proID" Then

                'boundColumn.Visible = False

                boundColumn.HeaderText = "ProductID"

 

            ElseIf col.ColumnName = "proName" Then

                boundColumn.HeaderText = "Product Name"

 

            ElseIf col.ColumnName = "proQty" Then

                boundColumn.HeaderText = "Product Quantity"

 

            ElseIf col.ColumnName = "unitPrice" Then

                boundColumn.HeaderText = "Price"

            End If

 

        Next

    End Sub

[Princy]

Hi Anthony,

Please create the columns in the Page_Load event and not in NeedDataSource event. Please take a look at this article to know more about Creating a RadGrid Programmatically.

Thanks,
Princy