NeedDataSource Event was not firing

[Saravanaraja]

When using the Dynamic Linq datasource option NeedDataSource Event was not firing, then the grid will display all records.

[Princy]

Hi Saravanaraja,

RadGrid fires the NeedDataSource event each time it needs to be bound to a data source. RadGrid does not fire the NeedDataSource event unless it is visible (Visible=True). Can you please elaborate how  are you binding the RadGrid so that i can replicate the scenario.

Thanks,
Princy

[Saravanaraja]

Hi Princy,

Thanks for reply.

In Radgrid
1. I used Linqdatasuorceid based binding entire table.
2.  In runtime i will change the condition find the below code i used

 private void loaddropdownlist()
    {
        lblerror.Text = "";
        Radcmb.SelectedIndex = 0;

        if (Radcmbcm.SelectedValue == "Category")
        {
            Radcmb.DataSourceID = "linkcategory";
            linkcategory.Where = "ystatus=True";
            linkcategory.OrderBy = "cCategoryCode";
            Radcmb.DataTextField = "cCategory";
            Radcmb.DataValueField = "cCategoryCode";
        }
        if (Radcmbcm.SelectedValue == "Manufacturer")
        {
            Radcmb.DataSourceID = "linkmanufact";
            linkmanufact.Where = "ystatus=@ystatus";
            linkmanufact.WhereParameters.Add("ystatus",DbType.String,"Yes");
            Radcmb.DataTextField = "cManufacturerName";
            Radcmb.DataValueField = "cManufacturerId";
        }
    }
3. When i navigate to next page it loads entire table and needdatasource also not firing.

[Princy]

Hi,

I am not sure about your requirement. Try Calling the method Rebind() and thus the NeedDataSource event should be fired. Please provide the way you are binding the RadGrid and in which event you are calling the loaddropdownlist() method.

Thanks.
Princy.

[Saravanaraja]

HI,

Thanks.

My problem was solved. I removed the rebind() from the page load event.

saran