Question

In web application, I fetch the data from back end and the data is now availbale in dataset. I have 5 columns in that dataset, but i need only one column, so how can i get only one column out of 5 columns. I use dataview but it is not getting.

               DataView dv = ds.Tables[0].DefaultView;
               dv.RowFilter= "empid";

but i am not getting. can you helpme

Answer 1

With the help of dataview you can create another table which has only required columns which you need

DataView view = new DataView(ds.tables[0]);
DataTable newTable = view.ToTable(tabblename, false, params string[] columnNames

);//Add name of required

You can get full example from the below link

Click

or

You can remove extra columns

ds.Tables[string].Columns.Remove(string)

to remove individual columns which you feel are extra one.

Don’t forget to ds.AcceptChanges() after deleting rows or they will still be in the dataset.