RadGrid Paging problem

[Divyang]

I am not getting updated pageindex when navigating from page to page. it shows previous page number, not current one which is clicked.
Master.SearchResults is radGrid


Following is configuration of grid on aspx.
    <telerik:RadGrid ID="SearchResultsGrid" runat="server" EnableViewState="True"
            Height="100%" AutoGenerateColumns="false" AllowPaging="true" AllowCustomPaging="true"
            AllowSorting="True" AllowMultiRowSelection="True" GridLines="None" 
            Skin="Telerik"  OnItemCommand="SearchResultsGrid_ItemCommand"
            OnNeedDataSource="SearchResultsGrid_NeedDataSource" PageSize="50" Width="721" >
            <MasterTableView EnableNoRecordsTemplate="true" TableLayout="Fixed" DataKeyNames="AssignmentId">









protected void SearchResultsGridNeedDataSource(object source, GridNeedDataSourceEventArgs e)
        {
            try
            {
                    LoadSearchResults();
            }
            catch (Exception ex)
            {
                HandleException(Master.ErrorMessagePanel, AssignmentErrorMessages.FIND_ASSIGNMENTS, string.Empty, MessageStatus.Error, ex);
            }
        }

 private void LoadSearchResults(bool dataBind = false)
        {
            if (rdoObjectType.SelectedItem == null)
            {
                return;
            }
            if (string.IsNullOrEmpty(selNames.SelectedValue))
            {
                return;
            }
            int objectId = int.Parse(rdoObjectType.SelectedItem.Value);
            int nameId = int.Parse(selNames.SelectedValue);
            List<SelectListDto> clientNames = (List<SelectListDto>)GetClientNames(objectId, selNames.Text);
            int objectTypeId = int.Parse(clientNames.Single(c => c.Value == int.Parse(selNames.SelectedValue)).ExtraField);
            int statusId = int.Parse(rdoStatus.SelectedValue);
            AssignmentSearchResultDto assignments  = FindAssignment(objectTypeId, objectId, nameId, statusId);
 
            Master.SearchResults.VirtualItemCount = assignments.TotalItems;
            Master.SearchResults.AllowCustomPaging = true;
            Master.SearchResults.DataSource = assignments.Assignments;
            Master.SearchResults.PageIndexChanged += RadGrid1_PageIndexChanged;
        }

 private AssignmentSearchResultDto FindAssignment(int objectTypeId, int objectId, int personId, int status)
        {
            int startRowIndex = Master.SearchResults.CurrentPageIndex * Master.SearchResults.PageSize;
            int maximumRows = Master.SearchResults.PageSize;
            AssignmentSearchResultDto assignments;
            using (Assignment assignment = new Assignment())
            {
                assignments = assignment.FindAssignment(objectTypeId, objectId, personId, status, agencyId, startRowIndex, maximumRows);
            }
            return assignments;
        }

[Princy]

Hello Divyang,

You can try the following code snippet to get the CurrentPageIndex. Hope this helps.

C#:

RadGrid1.PageIndexChanged += new GridPageChangedEventHandler(RadGrid1_PageIndexChanged);
void RadGrid1_PageIndexChanged(object sender, GridPageChangedEventArgs e)
 {
  int index = SearchResultsGrid.MasterTableView.CurrentPageIndex;
 }

Thanks,
Princy.

[Divyang]

My question was "PageIndexChanged" executes after needdatasource event and becuase of that needdatasource event has no updated pageindex. Problem still exists.

[Shinu]

Hello Divyang,

Try the folowing code snippet in PreRender to get the current PageIndex.
C#:

protected void RadGrid1_PreRender(object sender, EventArgs e)
{
  string PageIndex =SearchResultsGrid.MasterTableView.CurrentPageIndex.ToString();
}

Thanks,
Shinu.

[Vasil]

Hello Divyang,

CurrentPageIndex should be the new one when NeedDataSource is fired unless the grid tries to rebind itself because of manually called Rebind() method too early.
You could see this demo, where CurrentPageIndex is used inside the NeedDataSource, I think in the demo the custom paging is working fine and you could follow the same approach:
http://demos.telerik.com/aspnet-ajax/grid/examples/programming/custompaging/defaultcs.aspx

Kind regards,
Vasil
the Telerik team