Empty page header in Gridview while loading page in VB.NET

Question

User-1578974752 posted

I have a gridview in my asp.net webpage.

I could show the header even if there is no values in grid viee by showheaderwhen Empty to True.

When I laod the page ,the header is not showing ,If I click on a button or change the dropdownlist value,,then only the empty header is showing. How can I show an empty gridview header while page loading time? Appreciate the help

Answer 1

User-893317190 posted

Hi shsu,

You say you could show the header when set ShowHeaderWhenEmpty to true.

After, you say when you load page , the header is not showing.

I'm confused.

I have made a test .When setting ShowHeaderWhenEmpty to true,it shows header well.

Below is my code.

 <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" DataKeyNames="item_id" DataSourceID="SqlDataSource1"  ShowHeaderWhenEmpty="true" >
            <Columns >
                
                <asp:BoundField DataField="item_id" HeaderText="item_id" InsertVisible="False" ReadOnly="True" SortExpression="item_id" />
                <asp:BoundField DataField="item_name" HeaderText="item_name" SortExpression="item_name" />
                <asp:BoundField DataField="content" HeaderText="content" SortExpression="content" />
               
            </Columns>
        </asp:GridView>

If it is not your case, could you show your sample code to let us reproduce your problem?

Best regards,

Ackerly Xu

Answer 2

User-1716253493 posted

I guess you need to provide datasource and call databind in not ispostback page_load, because the datasource containing column names.

Or like another post, you can add columns manualy