grid view SelectedIndexChanged

Question

I have Gridiew1 in page one when click on Auto Generate select Button take you to page tow and fill it's control from selected row using session

as : TextBox1.Text = Session["cell1"].ToString();

TextBox2.Text = Session["cell2"].ToString();

it is work fine but when I click the grid page index give this error:

Gridview Fired Event 'Sorting' which wasn't handled

when put Auto Generate select Button to false grid page work without error

thank you all

Upamanyu Roy Choudhury · Answer

Hi Dear If you set AllowPaging=true or AllowSorting=true on a GridView control without using a DataSourceControl DataSource (i.e. SqlDataSource ObjectDataSource) you will run into the following errors: When changing the page on the GridView control: The GridView 'GridViewID' fired event PageIndexChanging which wasn't handled. When clicking a column name to sort the column on the GridView control: The GridView 'GridViewID' fired event Sorting which wasn't handled. As a result of not setting the DataSourceID property of the GridView to a DataSourceControl DataSource you have to add event handlers for sorting and paging. private string ConvertSortDirectionToSql(SortDirection sortDirection) { string newSortDirection = String.Empty; switch (sortDirection) { case SortDirection.Ascending: newSortDirection = ASC; break; case SortDirection.Descending: newSortDirection = DESC; break; } return newSortDirection; } protected void gridView_PageIndexChanging(object sender GridViewPageEventArgs e) { gridView.PageIndex = e.NewPageIndex; gridView.DataBind(); } protected void gridView_Sorting(object sender GridViewSortEventArgs e) { DataTable dataTable = gridView.DataSource as DataTable; if (dataTable != null) { DataView dataView = new DataView(dataTable); dataView.Sort = e.SortExpression +   + ConvertSortDirectionToSql(e.SortDirection); gridView.DataSource = dataView; gridView.DataBind(); } } If you rate this post as useful please mark it as an answer