Dynamic Grid DataKeyName

[Suresh K]

hi.
i am designing grid Dynamically like this with Detail Tables.

RadGridAudioFileReport = New RadGrid

Dim boundColumnClientID, boundColumnClient, boundColumnTotal As New GridBoundColumn

Dim templatecolumnActive, templatecolumnSupport, templatecolumnFinal As New GridTemplateColumn

RadGridAudioFileReport.DataSource = Nothing

RadGridAudioFileReport.DataSource = Fill_Allocation_Report_Grid()

RadGridAudioFileReport.Width = Unit.Pixel(2600)

RadGridAudioFileReport.Skin = "Office2007"

RadGridAudioFileReport.AutoGenerateColumns = False

RadGridAudioFileReport.MasterTableView.DataKeyNames = New String() {"Client_ID"}

boundColumnClientID.HeaderText = "Client_ID"

boundColumnClientID.DataField = "Client_ID"

boundColumnClientID.UniqueName = "Client_ID"

boundColumnClientID.Visible = False

RadGridAudioFileReport.MasterTableView.Columns.Add(boundColumnClientID)

boundColumnClient.HeaderText = "Client"

boundColumnClient.DataField = "Client"

boundColumnClient.UniqueName = "Client"

RadGridAudioFileReport.MasterTableView.Columns.Add(boundColumnClient)

boundColumnTotal.HeaderText = "Total"

boundColumnTotal.DataField = "Total"

boundColumnTotal.UniqueName = "Total"

templatecolumnActive.HeaderTemplate = New MyTemplateActiveHeader()

templatecolumnActive.ItemTemplate = New MyTemplateActiveItems()

RadGridAudioFileReport.MasterTableView.Columns.Add(templatecolumnActive)

Dim tableViewAccounts As New GridTableView(RadGridAudioFileReport)

Dim boundColumnAccountID, boundColumnAccount As New GridBoundColumn

tableViewAccounts.DataSource = Accounts_FileAllocation_Report_Data()

tableViewAccounts.Width = Unit.Percentage(100)

tableViewAccounts.AutoGenerateColumns = False

tableViewAccounts.DataKeyNames = New String() {"accountid"}

Dim relationFields As GridRelationFields = New GridRelationFields()

tableViewAccounts.ParentTableRelation.Add(relationFields)

RadGridAudioFileReport.MasterTableView.DetailTables.Add(tableViewAccounts)

boundColumnAccountID.DataField = "accountid"

boundColumnAccountID.HeaderText = "accountid"

boundColumnAccountID.UniqueName = "accountid"

'boundColumnAccountID.Visible = False

tableViewAccounts.Columns.Add(boundColumnAccountID)

boundColumnAccount.DataField = "account"

boundColumnAccount.HeaderText = "Account"

boundColumnAccount.UniqueName = "Account"

tableViewAccounts.Columns.Add(boundColumnAccount)

RadGridAudioFileReport.DataBind()

Me.PlaceHolder1.Controls.Add(RadGridAudioFileReport)

Public Function Accounts_FileAllocation_Report_Data(ByVal client_id As String)

MsgBox(client_id.ToString())

cmd = New MySqlCommand("SELECT id as accountid,accname as account FROM account_master where ccode='" & client_id & "' and delflag=0;", con)

myda = New MySqlDataAdapter(cmd)

AccountsActiveDT = New DataTable

myda.Fill(AccountsActiveDT)

Return AccountsActiveDT

End Function

here i want the DatakeyNames to get the data for Detail Tables.
how can i get the DataKeyName("Client_ID") and how can i pass the DataKeyName to this function Accounts_FileAllocation_Report_Data().
can any one help me please.

Thank You.
Suresh K.

[Princy]

Hi

You can use the AdvancedDataBinding Techqniue to bind the RadGrid. Attach the NeedDataSource  and DetailTableDataBind   events  to the RadGrid 

   RadGrid1.NeedDataSource += new GridNeedDataSourceEventHandler(RadGrid1_NeedDataSource);

   RadGrid1.DetailTableDataBind += new GridDetailTableDataBindEventHandler(RadGrid1_DetailTableDataBind);

and call your binding functions in them accordingly  as  shown below:

C#

 protected void RadGrid1_NeedDataSource(object source, Telerik.Web.UI.GridNeedDataSourceEventArgs e)
        {
            if (!e.IsFromDetailTable)
            {
                RadGrid RadGrid1 = (RadGrid)source;
                RadGrid1.DataSource = GetDataTable("SELECT * FROM Customers");
            }
        }
 protected void RadGrid1_DetailTableDataBind(object source, GridDetailTableDataBindEventArgs e)
        {
            GridDataItem dataItem = (GridDataItem)e.DetailTableView.ParentItem;
            switch (e.DetailTableView.Name)
            {
                case "Orders":
                    {
                        string CustomerID = dataItem.GetDataKeyValue("CustomerID").ToString();
                        e.DetailTableView.DataSource = GetDataTable("SELECT * FROM Orders WHERE CustomerID = '" + CustomerID + "'");
                        break;
                    }
            }
        }

Thanks,

Princy