how to rename datagridView Column

Question

I have something like this sql query : Select Sum(value) from Database.table . And i post this in to some gridView in asp.net web form.

<asp:gridview id="foo" runat="server" autogeneratecolumns="false">
    <columns>
        <asp:boundfield datafield="ID" headertext="Identifier" />
    </columns> 
</asp:gridview>

this Sum(VALUE) don't have datafield or i dont know what is this .How to change HeaderText of SUM(value) column

Answer 1

您应该使用Select Sum（value）AS SomeColumnName并将其用作数据字段。

Answer 2

Select Sum(value) As ColumnName from Database.table

将ColumnName替换为您想要赋予该列的任何名称。

Answer 3

You nee to use an ALIAS and then use it inside your DataField

Select Sum(value) AS SumOfValue from Database.table

Then

<columns>
    <asp:boundfield datafield="SumOfValue" headertext="Identifier" />  // use the alias name here
</columns>