Data source is an invalid type. It must be either an IListSource, IEnumerable, or IDataSource

Question

Data source is an invalid type. It must be either an IListSource, IEnumerable, or IDataSource. The error is displayed when I bind the grid view

var list = d         


        

Answer 1

You are returning a single object from GetEmployeebyName method and binding that to the GridViewEmployee, thats why it is giving error.

You can change it like

var empInfo = dal.GetEmployeebyName(name);
var list = new List{empInfo};

//or you can do this 
//var list = new List();
//list.Add(empInfo);

GridViewEmployee.DataSource = list;
GridViewEmployee.DataBind();

DataSource must be a type of collection as the exception is stating ( It must be either an IListSource, IEnumerable, or IDataSource)