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Need Datasource not firing !!

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Grid

This is a migrated thread and some comments may be shown as answers.

Waleed Seada asked on 31 Dec 2009, 03:34 PM

Dear All,

I can't get it to work ...
I reviewed all the forums post regards the NeedDataSource event handlers all the concepts ....

Here is my Issue:
I create a contentpage that exactly matches the tab loadondemad example :
http://demos.telerik.com/aspnet-ajax/tabstrip/examples/applicationscenarios/loadondemand/defaultcs.aspx

But the grids on the loaded user-controls doesn't do any sorting or paging although I implement the OnNeedDatasource event which never fires at all (which cause the sorting or paging miss-behavior).

This is my .ascx grid definition code snippet:

    
            <telerik:RadGrid   
        
                ID="SummaryCreditGrid"   
        
                runat="server"                            
        
                AllowSorting="true" 
        
                AllowPaging="true" 
        
                PageSize="5" 
        
                OnNeedDataSource="SummaryCreditGrid_NeedDataSource">  
        
                <MasterTableView Width="100%"/>  
        
            </telerik:RadGrid>

The user-control scenario starts when it loaded and then filled with data using the DisplayValues method that receive a business object (summaryCredit[]) and bind it to the radgrid which I change later to use a datatable when I thought it was the problem.
anyway here is the method:

    
            public void DisplayValues(SummaryCredit[] summaryCredit)  
        
            {  
        
                DataTable tdt = new DataTable();  
        
                tdt.Columns.Add("DATA_FROM", typeof(string));  
        
                tdt.Columns.Add("CATALOGUE_CODE", typeof(string));  
        
                tdt.Columns.Add("CREDITFACILITY", typeof(string));  
        
                foreach (var credit in summaryCredit)  
        
                {  
        
                    tdt.Rows.Add(credit.DataFrom, credit.CatalogueCode, credit.Creditfacility);  
        
                }  
        
                SummaryCreditGrid.DataSource = tdt;  
        
                SummaryCreditGrid.DataBind();  
        
                Session["SummaryCreditGrid"] = tdt;  
        
            }

and the NeedDataSource method:

    
            protected void SummaryCreditGrid_NeedDataSource(object source, Telerik.Web.UI.GridNeedDataSourceEventArgs e)  
        
            {  
        
                DataTable dt = new DataTable();  
        
                dt = Session["SummaryCreditGrid"] as DataTable;  
        
                if (dt != null)  
        
                {  
        
                    SummaryCreditGrid.DataSource = null;  
        
                    SummaryCreditGrid.DataSource = dt;  
        
                }  
        
            }

I put a breakpoint in this method but it never fire !!

What could be my problem ?

Regards
Waleed

Need Datasource not firing !!

3 Answers, 1 is accepted