Binding data to label with static text

Question

<asp:Label ID="IDLabel" runat="server" Text='<%# Bind("ID") %>' />

when I call the DataBind() function, ID is displayed as follows:

14

but what if I want to display the ID like this:

ID: 14

this didn't work.

<asp:Label ID="IDLabel" runat="server" Text='ID: ' + '<%# Bind("ID") %>' />

Answer 1

Text='<%# "ID: " +Eval("ID").ToString() %>' 

Answer 2

Try this one:

<asp:Label ID="IDLabel" runat="server" Text='<%# "ID: " +Eval("ID").ToString() %>' />

You cannot concatenate the values of attributes in XML.

You basically have XML like this:

<element attribute="ID" + "sometext"/>

which is not valid - instead you need to let the preprocessor change the output of the XML so that only the value of the attribute is modified.

Answer 3

<asp:Label ID="IDLabel" runat="server" Text='<%# "ID: " + Bind("ID") %>'   />

要么

<asp:Label ID="IDLabel" runat="server" Text='<%# String.Format("ID: {0}", Bind("ID")) %>'   />

Answer 4

<asp:Label ID="IDLabel" runat="server" Text='<%# "ID: " +Eval("ID").ToString() %>' />