September 28, 2014 by Nitesh

Solution: The data source does not support server-side data paging with GridView

Friends,

While working with GridView, I faced an issue while binding the data to GridView. The error message read as “The data source does not support server-side data paging.“. Initially I thought this was related to paging functionality of the GridView and looked into that, but thatw as not the solution. After doing bit of search, I found the reason of this error was the way a source is bound to the GridView. I will explain you here –

Initially this was my LoadData().

        private void LoadData()
        {
            ProductInventory[] lines = GetData();
            grdRows.DataSource = lines.Where(t => t.ProductID.StartsWith(tbSearch.Text));
            grdRows.DataBind();
        }

Here I am trying to get some data based on a  filter using LINQ and applying it directly to the GridView. This was the main reason of the error. I just converted this resultset to a List using ToList() and voila, it works.The modified LoadData looks like below –

        private void LoadData()
        {
            ProductInventory[] lines = GetData();
            grdRows.DataSource = lines.Where(t => t.ProductID.StartsWith(tbSearch.Text)).ToList();
            grdRows.DataBind();
        }

In technical words from StackOverflow, “You can’t use an IQueryable object to data bind to a GridView and still use Paging and Sorting. You must return a List to the GridView using the ToList() method.

Hope you like this! Keep learning and sharing! Cheers!

#ASP.Net#C##Error#GridView

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