asp.net hyperlinkfield set navigateurl "http=blabla/Id=" value from database

Question

I am new to asp.net. Please help. I have 2 files. One default.aspx, one default.aspx.cs.

In the default.aspx, I have:

<asp:GridView ID="DataGridView" runat="server" AutoGenerateColumns="false" RowStyle-BackColor="#A1DCF2" HeaderStyle-BackColor="#3366FF" HeaderStyle-ForeColor="White">
    <rowstyle backcolor="LightCyan" forecolor="Black" font-italic="true"/>

     <alternatingrowstyle backcolor="PaleTurquoise" forecolor="Black" font-italic="true"/>

    <Columns>
        <asp:BoundField ItemStyle-Width="15%" DataField="ID" HeaderText="ID" />

        <asp:hyperlinkfield text="Log" navigateurl="http://somelink&RecordId=" target="_blank" ItemStyle-Width="15%" HeaderText="Log" />

        <asp:BoundField ItemStyle-Width="15%" HeaderText="Delayed Delivery" />
    </Columns>
</asp:GridView>

My questions:

Column: hyperlink Log:

1. I want to bind it to a column in database called "Base_Id", but when I use DataField="Base_Id" in the hyperlink definition, it gives error;

2. I want to append the base_Id to the end of the url so that it gives navigateurl="http://somelink&RecordId=baseId_value" ; I tried TemplateField, but Visual Studio doesnot recognize it.

3. for the delayed delivery, I need to compare the data and do some math. Is there a way for me to add a function in default.aspx.cs? if there's, could anyone give an example please?

Any ideas are appreciated. Thanks a lot. =)

Answer 1

Convert the column

  <asp:hyperlinkfield text="Log" navigateurl="http://somelink&RecordId=" target="_blank" ItemStyle-Width="15%" HeaderText="Log" />

to TemplateColumn and do this

<asp:TemplateField HeaderText="Log" ItemStyle-Width="15%">
        <ItemTemplate>
            <asp:HyperLink runat="server" 
                NavigateUrl='<%# GetUrl(Eval("Base_Id"))%>' 
                text="Log"></asp:HyperLink>
        </ItemTemplate>
    </asp:TemplateField>

and in code-behind

protected string GetUrl(object id)
{
return "http://somelink&RecordId=" + id;
}

Hope this helps!

Regards, Uroš