asp:repeater - If/Then script in <ItemTemplate>

[simonm]

Here is an HTML extract from my ASPX document with a data repeater control:

<asp:repeater id="Repeater1" runat="server">
	<HeaderTemplate>
		<table border="1" width="100%">
			<tr>
				<th>Name</th>
			</tr>
	<ItemTemplate>
			<tr>
				<td><%#Container.DataItem("Name_vc")></td>
			</tr>
	</ItemTemplate>
	<FooterTemplate>
		</table>
	</FooterTemplate>
</asp:repeater>

However, I want to display a conditional value in my ItemTemplate dependant on the Name_vc field. I want to do something like this:

<ItemTemplate>
	<td>
		<% 
			If #Container.DataItem("Name_vc") = "Fred" THEN
				Response.Write("Your name is Fred") 
			Else 
				Response.Write("Your name is not Fred")
			End If
		%>
	</td>
</ItemTemplate>

I get a compiler error message: "BC30201: Expression expected." It highlights the line I have coloured red.

Does anybody know how I can get this to work?

[dj4uk]

The way I do it is create a method that handles all the logic and passes back a string to be output.

Sorry it's in C# but my VB.NET ain't too hot!

<ItemTemplate>
	<td>
		<%# displayName((string) DataBinder.Eval(Container.DataItem, "Name_vc")) %>
	</td>
</ItemTemplate>

and the method

string diplayName(string nameField) {
	if (nameField == "Fred") {
		return "Your name is Fred";
	} else {
		return "Your name is not Fred";
	}
}

HTH

DJ

[simonm]

Thanks.

However, my actual requirements are slightly more complex than that. What actually I want to do is insert a Hyperlink control for certain values and leave it blank for other values...

[dj4uk]

In which case:

<ItemTemplate>
	<td>
		<asp:Label id="lblTest" runat="server" Text=<%# displayName((string) DataBinder.Eval(Container.DataItem, "Name_vc")) %> />
	</td>
</ItemTemplate>

DJ

[simonm]

I don't understand...

How will the above code become an asp:hyperlink under certain conditions?

[dj4uk]

I've misunderstood - ignore last post - let me just think this through...

DJ

[dj4uk]

OK if you place a placeholder control into the itemtemplate you will then have a control to tie dynamically created controls to.

<ItemTemplate>
	<td>
		<asp:PlaceHolder id="lblTest" runat="server" />
	</td>
</ItemTemplate>

Then you need to create a method to handle the repeater ItemDataBound event. When this method is called you can then create dynamic controls (such as a Hyperlink) and add them to the PlaceHolder ControlCollection.

Have a search on Google and if you can't come up with any code let me know and I'll come up with an example.

HTH

DJ

[simonm]

Thanks a lot for your advice.