Hello Ram,

Thank you for posting your inquiry to the Infragistics ASP.Net forums.  To embed a WebDropDown in the WebDataGrid RowEditTemplate, add the WebDropDown control to the RowEditTemplate for the Column where you want the DropDownList to display.  Set the DisplayMode to "DropDownList", the TextField to the Name of the Column to display in the WebDropDown, the ValueField to the Column Key which the WebDropDown is bound to, and EnableDropDownAsChild to "true".  The Z-Index for the DropDown needs to be set to a higher value or the DropDownList will not display properly.  To do this, you can set the Z-Index in the Client-Side Initialize event to a new Z-Index value.

In the Behaviors of the EditingCore, under ColumnSettings, set the ColumnKey to the Column where the WebDropDown was added. 

In the RowEditTemplate under the ClientBindings, the RowEditingClientBinding for the Column with the WebDropDown needs to use the $find command to locate the WebDropDown control so its current value may be retrieved and to also set its new value.

The following Markup Code is based on three of the columns from the sample in our Samples Browser which you had referenced in your post.  This code will demonstrate how to embed a WebDropDown in a WebDataGrid RowEditTemplate:

<ig:WebDataGrid ID="dg" runat="server" Height="500px" width="800px" DataSourceID="Orders"  
      DataKeyFields="OrderID" AutoGenerateColumns="False" OnRowUpdating="dg_RowUpdating">
 <Columns>
  <ig:BoundDataField DataFieldName="OrderID" Key="OrderID">
   <Header Text="Order ID" />
  </ig:BoundDataField>   
  <ig:BoundDataField DataFieldName="ContactName" Key="CustomerID">
   <Header Text="Contact Name" />
  </ig:BoundDataField>
  <ig:BoundDataField DataFieldName="ShippingCompany" Key="ShipperID">
   <Header Text="Shipper" />
  </ig:BoundDataField> 
 </Columns>                  
 <Behaviors>
   <ig:EditingCore>
  <Behaviors>
   <ig:CellEditing Enabled="true" >
    <ColumnSettings>
      <ig:EditingColumnSetting ColumnKey="ShipperID" />
    </ColumnSettings>
     </ig:CellEditing>                         
   <ig:RowDeleting Enabled="true" />
   <ig:RowEditingTemplate CancelButton="buttonCancel" OKButton="buttonOK">
    <ClientBindings>
     <ig:RowEditingClientBinding ColumnKey="OrderID" ControlID="control_OrderID"
      GetValueJavaScript="$get({ClientID}).value"
      SetValueJavaScript="$get({ClientID}).value={value}" />
     <ig:RowEditingClientBinding ColumnKey="CustomerID" ControlID="control_ContactName"
      GetValueJavaScript="$get({ClientID}).value"
      SetValueJavaScript="$get({ClientID}).value={value}" />
     <ig:RowEditingClientBinding ColumnKey="ShipperID" ControlID="control_Shipper"
      GetValueJavaScript="$find({ClientID}).get_currentValue()"
      SetValueJavaScript="$find({ClientID}).set_currentValue({value},true)" />
    </ClientBindings>
    <Template>
     <div style="background-color:white;border:1px solid black; height:auto; width:auto">
      OrderID:
      <asp:TextBox ID="control_OrderID" runat="server"/>
      <br />
      ContactName:
      <asp:TextBox ID="control_ContactName" runat="server"/>
      <br />
      Shipper:
      <ig:WebDropDown ID="control_Shipper" DisplayMode="DropDownList"DataSourceID="Shippers" 
            TextField="CompanyName" ValueField="ShipperID" runat="server" Width="200px" 
             EnableDropDownAsChild="true" ClientEvents-Initialize="setZIndex"
DropDownItemBinding-TextField="CompanyName" DropDownItemBinding-ValueField="ShipperID">
      </ig:WebDropDown>
      <br />
      <asp:Button ID="buttonOK" runat="server" OnClientClick="return" Text="OK"
       UseSubmitBehavior="False" />
      <asp:Button ID="buttonCancel" runat="server" CausesValidation="False"
       OnClientClick="return" Text="Cancel" UseSubmitBehavior="False" />
     </div>
    </Template>
   </ig:RowEditingTemplate>
   <ig:RowAdding Enabled="False">
    <EditModeActions EnableOnActive="True" EnableOnKeyPress="True"
     MouseClick="Single" />
   </ig:RowAdding>                                                                                     
   </Behaviors>
   </ig:EditingCore>
   <ig:Activation />
   <ig:RowSelectors />
   <ig:Selection RowSelectType="Single" />
 </Behaviors>
</ig:WebDataGrid>

The following code snippet is an example on how to set the zIndex for the DropDownList of the WebDropDown:

function setZIndex(sender, args) {
     sender.behavior.set_zIndex(100000);
}

Please let me know if this information is helpful or if you have any questions or need further assistance.

Thank you.

Sincerely,
Mike D.
Developer Support Engineer
Infragistics
www.infragistics.com/support

To populate the WebDropDown from the Code Behind, please take a look at our Samples Browser where samples and code may be found under the WebDropDown control for DataBinding using different scenarios.  Our Samples browser may be found at the following link:

<https://ko.infragistics.com/samples/aspnet>

Please let me know if this information is helpful.

Thank you.
Sincerely,
Mike D.
Developer Support Engineer
Infragistics
www.infragistics.com/support

protected void dg_DataBound(object sender, EventArgs e)
{
     var ram = dg.Behaviors.EditingCore.Behaviors.RowEditTemplate.TemplateContainer.FindControl("WebDropDown ID");
}

Please let me know if this helps.

Sincerely,
Mike D.
Developer Support Engineer
Infragistics
www.infragistics.com/support

just like in http://samples.infragistics.com/2010.2/WebFeatureBrowser/Default.aspx

1.But i need bind data for  grid and dropdowns inside grid from code behind   not in markup(aspx), how i have to do.Usualy for asp.net grids we can find controls inside grid in rowbound event and bind data source ,but  for infragistice ho wto find controls inside grid, i tried it , i failed   , i need sample which will bind data in code behind

2.How to manipulate grid  in code behind  which willl save all rows at a tiime when user clicks on save

like foreach gridrow in gridview i have to save

3.Add new row,update behaivors are not working if grid has  controls like in dropdown ,buttons ,calander in grid (i tried as part of edit behaivor also) , i failed

please do need ful

Regards

showkath

Given In the screen shoot, when I selected the highlighted row, the value of 'Michigan' was replaced with the last value that I selected which is 'Arizona' from the previous row.  Also notice that "Albuquerque', 'Arizona', 'Boise' and the row under 'Cascades' are either selected or the background is grayed. They were also selected for rows towards the top of the grid.

Below is the code used in the markup and the codebehind

<ig:RowEditingClientBinding ColumnKey="Territory" ControlID="control_Territory"             GetValueJavaScript="$find({ClientID}).get_selectedItem().get_value()"            SetValueJavaScript="$find({ClientID}).set_currentValue({value},true)" />

<div class="lbl">&nbsp;Territory:&nbsp;</div>
   <ig:WebDropDown ID="control_Territory" DisplayMode="DropDownList" DataSourceID="SqlDataSource2"
      TextField="mktgrpname" ValueField="mktgrpname" runat="server" Width="250px"
      EnableDropDownAsChild="true" ClientEvents-Initialize="setZIndex"  DropDownOrientation="Default"
      DropDownItemBinding-TextField="mktgrpname" DropDownItemBinding-ValueField="mktgrpname">
   </ig:WebDropDown>
</div>

Protected Sub GridView_RowSelectionChanged(ByVal sender As Object, ByVal e As Infragistics.Web.UI.GridControls.SelectedRowEventArgs) Handles GridView.RowSelectionChanged

        Dim DDLB As WebDropDown = _
            TryCast(GridView.Behaviors.EditingCore.Behaviors.RowEditTemplate.TemplateContainer.FindControl("control_Territory"), WebDropDown)
        If Not IsNothing(DDLB) Then
            If e.CurrentSelectedRows.Count > 0 Then
                DDLB.ClearSelection()
                DDLB.SelectedItemIndex = -1
                DDLB.DataBind()
                DDLB.CurrentValue = e.CurrentSelectedRows.Item(0).Items(14).Value
                DDLB.SelectedValue = e.CurrentSelectedRows.Item(0).Items(14).Value
            End If
        End If

    End Sub

What do I need to do to have all previously selected entries deselected (not highlighted and the background white) and highlight the currently selected rows entry highlighted?

Thanks in advance.