Hi Martin,

Thanks for the response but I am facing an issue with  AutoPostBackFlags-ValueChange="On". Issue is when I select value in first DropDownProvider,based on the value selected in 1st DropDownProvider,2nd DropDownProvider's data is populated but 1st DropDownProvider valuie is reset to DefaultValueText(--Choose Portfolio Type--).

To resolve this I have included Javascript for first dropdownprovider.Below is the code...

function dgCompatibilityViewData_DropDown_SelectionChangedPortfolioName(sender, eventArgs)
{
      var selectedItemText = eventArgs.getNewSelection()[0].get_text();
      var selectedItemValue = eventArgs.getNewSelection()[0].get_value();
      var dropdowneditor2 = ig_controls.EditorProductName;
      dropdowneditor2.loadItems(selectedItemValue, false);

}

Below is the aspx source code for this...

<ig:DropDownProvider ID="PortfolioNameDropDownProvider">
     <EditorControl ID="EditorPortfolioName" runat="server" ClientIDMode="Predictable" DisplayMode="DropDownList"            TextField="PortfolioName" ValueField="ID" DataKeyFields="ID" Width="364px">
              <DropDownItemBinding TextField="PortfolioName" ValueField="ID"></DropDownItemBinding>
              <ClientEvents SelectionChanged="dgCompatibilityViewData_DropDown_SelectionChangedPortfolioName"/>
      </EditorControl>
</ig:DropDownProvider>

Below is the source code for 2nd Dropdownprovider..

<ig:DropDownProvider ID="ProductNameDropDownProvider">
     <EditorControl ID="EditorProductName" runat="server" ClientIDMode="Static" DisplayMode="DropDownList"       TextField="ProductName" ValueField="ID" DataKeyFields="ProductName" Width="364px"                             OnItemsRequested="EditorPortfolioName_ItemsRequested">
<DropDownItemBinding TextField="ProductName" ValueField="ID"></DropDownItemBinding>
</EditorControl>
</ig:DropDownProvider>

Below is the EditorPortfolioName_ItemsRequested code..

protected void EditorPortfolioName_ItemsRequested(object sender, DropDownItemsRequestedEventArgs e)
{
      //logic to reset 2 nd Dropdownprovider and populate the date based on nvalue selected from 1st Dropdownprovider
}

Everything is good for first time i.e when I select value from first dropdownprovider the second dropdownprovider displayed value is defaultValue(--Choose Product Name--) and data populated based on value selected from first Dropdownpeovider & I select the value from second Dropdownprovider.But for the 2nd time when I change the value in 1st Dropdownprovider,second Dropdownprovider is not reset to default text(--Choose Product Name--) and already selected value is displayed but data is changing based on the value selected from first Dropdownprovider

I think I have to do some modification in Javascript code but not getting what to do.Can you please suggest me in this.

Thanks,

Rakesh