detail grid is not refreshing.

[John]

When I click on a row in master grid , the detail grid does not refresh. Please help me. thanks

        protected void OnLogGridNeedDataSource(object sender, Telerik.Web.UI.GridNeedDataSourceEventArgs e)
        {
            var logs = LogManager.FindLog();
 
            var sortedlogs = from l in logs
                             orderby l.LogId descending
                             select l;
 
            grdLogGrid.DataSource = sortedlogs;
 
        }
 
        protected void OnLogDetailGridNeedDataSource(object sender, Telerik.Web.UI.GridNeedDataSourceEventArgs e)
        {
            int logid = 0;
            grdLogDetailGrid.DataSource = null;
            
            if (grdLogGrid.SelectedValue != null)
                logid = Convert.ToInt32(grdLogGrid.SelectedValue.ToString());
 
 
            var logDetails = LogManager.FindLogDetail();
            var logDetail = from ld in logDetails
                            where ld.LogId == logid
                            select ld;
 
            grdLogDetailGrid.DataSource = logDetail;
 
        }
 
 
 
        protected void OnLogGridSelectedIndexChanged(object sender, EventArgs e)
        {
            int logid = Convert.ToInt32(grdLogGrid.SelectedValue.ToString());
 
            var logDetails = LogManager.FindLogDetail();
            var logDetail = from ld in logDetails
                            where ld.LogId == logid
                            select ld;
 
            grdLogDetailGrid.DataSource = logDetail;
 
        }










	<telerik:RadAjaxManagerProxy ID="AjaxProxy" runat="server">
		<AjaxSettings>
			<telerik:AjaxSetting AjaxControlID="grdLogGrid">
				<UpdatedControls>
					<telerik:AjaxUpdatedControl ControlID="grdLogGrid" />
				</UpdatedControls>
			</telerik:AjaxSetting>
		</AjaxSettings>
	</telerik:RadAjaxManagerProxy>
	
	<telerik:RadGrid 
		ID="grdLogGrid" 
		runat="server"
		OnNeedDataSource="OnLogGridNeedDataSource"
		AllowFilteringByColumn="true"
		AllowPaging="true"
		AllowSorting="true"
		GroupingEnabled="true"
		ShowGroupPanel="true" 
        onselectedindexchanged="OnLogGridSelectedIndexChanged">
		<MasterTableView
			DataKeyNames="LogId">
            <CommandItemSettings ExportToPdfText="Export to PDF"></CommandItemSettings>
            <RowIndicatorColumn Visible="True" FilterControlAltText="Filter RowIndicator column"></RowIndicatorColumn>
            <ExpandCollapseColumn Visible="True" FilterControlAltText="Filter ExpandColumn column"></ExpandCollapseColumn>
            <EditFormSettings>
                <EditColumn FilterControlAltText="Filter EditCommandColumn column"></EditColumn>
            </EditFormSettings>
		</MasterTableView>
		<ClientSettings 
			AllowColumnsReorder="true"
			AllowDragToGroup="true"
			AllowGroupExpandCollapse="true"
			ColumnsReorderMethod="Reorder"
			EnableRowHoverStyle="true" EnablePostBackOnRowClick="True"
			>
			<Resizing AllowColumnResize="true" ResizeGridOnColumnResize="false" />
			<Selecting AllowRowSelect="true"  /> 
			             
		</ClientSettings>
		<GroupingSettings ShowUnGroupButton="true" />             
 
<FilterMenu EnableImageSprites="False"></FilterMenu>
 
	</telerik:RadGrid>
 
    <br />
    <strong>Log Details</strong>
 
    <br />
	<telerik:RadGrid 
		ID="grdLogDetailGrid" 
		runat="server"
		OnNeedDataSource="OnLogDetailGridNeedDataSource"
		AllowFilteringByColumn="true"
		AllowPaging="true"
		AllowSorting="true"
		GroupingEnabled="true"
		ShowGroupPanel="true">
		<MasterTableView
			GroupLoadMode="Client">
		</MasterTableView>
		<ClientSettings 
			AllowColumnsReorder="true"
			AllowDragToGroup="true"
			AllowGroupExpandCollapse="true"
			ColumnsReorderMethod="Reorder"
			EnableRowHoverStyle="true"
			>
			<Resizing AllowColumnResize="true" ResizeGridOnColumnResize="false" />
			<Selecting AllowRowSelect="true"  /> 
			             
		</ClientSettings>
		<GroupingSettings ShowUnGroupButton="true" />             
 
	</telerik:RadGrid>

[Pavlina]

Hi John,

The online demo below demonstrates how the desired functionality can be achieved:
http://demos.telerik.com/aspnet-ajax/grid/examples/programming/selectedvalue/defaultcs.aspx

Give it a try and see what is the difference in your case.
 
Regards,
Pavlina
the Telerik team