GridView - If statement for hyperlink or no hyperlink within data presentation

Lets say my data is this in the DB -

Column 1     Column 2          Column 3       Column 4        Column5
date         <description>            $5                INV                 65
date          <description>          -$10
date           <description>           $20             INV                 66

What I what to do is this -

Display the information in a GridView. If INV is present then hyperlink description to 65.pdf. If there is no INV just display everything with no link. 

Basically within the <asp:gridview> code I will need some sort of IF statement for IF Column4='INV' Then

boundfield for Date
hyperlinkfield for column2 linked to column5.pdf
boundfield for column3


All boundfields for Data, column2, and column3

Any help would be great.

8/25/2008 6:09:08 PM 72751 articles. 3 followers. Follow

11 Replies

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How about doing something like this? 

		<asp:hyperlink id="HyperLink1" runat="server" navigateurl="65.pdf" visible='<%# Eval("Column4").ToString().Equals("INV") %>'
			text="Click Here" />

Thanks, Ed

Microsoft MVP - ASP/ASP.NET

8/25/2008 6:35:48 PM

Without playing with that ... does the visible link work like this -

 If true = show a link

If false = display text with no link?

8/25/2008 6:48:45 PM

No, if you still want to show the text even if the HyperLink is not displayed, then do something like this instead: 

		<asp:hyperlink id="HyperLink1" runat="server" navigateurl="65.pdf" text="Click Here"
			visible='<%# Eval("Column4").ToString().Equals("INV") %>' />
		<asp:label id="Label1" runat="server" text="Click Here" visible='<%# !Eval("Column4").ToString().Equals("INV") %>' />

Thanks, Ed

Microsoft MVP - ASP/ASP.NET

8/25/2008 7:16:10 PM

I need to finalize my views and stored procedure but I will test out a variation of this and let you know what happens.

8/25/2008 8:08:35 PM

Ok I am kinda confused -

Here is 1 Row of Data with the column Titles

Date - 2007-01-16
ClientID - 2 
Amount - 1506.00 
Transaction - REF#1 -  Advertising Services Due:  for Mailing: Week 1   (Zones: 1) 
Type - INV 
Invoiceno - 1

How it is displayed in a basic gridview as we speak -

                        <asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource2"
                            Visible="False" AllowPaging="True" Width="529px" PageSize="40">
                                <asp:BoundField DataField="Date" HeaderText="Date" ReadOnly="True" SortExpression="Date">
                                    <ItemStyle Font-Size="Smaller" />
                                <asp:BoundField DataField="Transaction" HeaderText="Transaction" ReadOnly="True"
                                    <ItemStyle Font-Size="Smaller" />
                                <asp:BoundField DataField="Amount" HeaderText="Amount" ReadOnly="True" SortExpression="Amount">
                                    <ItemStyle Font-Size="Smaller" />

What I want to happen is this -

Date, Transaction and amount are displayed.

If Type = INV then transaction needs a link to Invoiceno.pdf
If Type != INV just list transaction with no link.

The data is a union select of data for INV, BB, NSF etc. Displaying all account activity for a client. If its an INV there is an associated Invoice we are linking too.


8/26/2008 6:15:51 PM

Just trying to push this back up so its not lost.

8/27/2008 1:59:59 PM

This is where I am at with this. I get some errors -

		                                <asp:hyperlink id="HyperLink1" runat="server" navigateurl="<%# Eval("invoiceno") %>.pdf" text="<%# Eval("transaction") %>"
			                            visible="<%# Eval("Type").ToString().Equals("INV") %>" />
		                                <asp:label id="Label1" runat="server" text="<%# Eval("transaction") %>" visible="<%# !Eval("Type").ToString().Equals("INV") %>" />
2 server tag is not well formed.

and 1 Error 3 Leading '.' or '!' can only appear inside a 'With' statement. C:\Asp.Net\WebSite1\Default.aspx 1 1 C:\Asp.Net\WebSite1\

Which references the top of my page?

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>


8/27/2008 2:41:45 PM

This is what you want then for VB.Net: 

		<asp:hyperlink id="HyperLink1" runat="server" navigateurl="<%# Eval("invoiceno") %>.pdf"
			text="<%# Eval("transaction") %>" visible="<%# Eval("Type").ToString().Equals("INV") %>" />
		<asp:label id="Label1" runat="server" text="<%# Eval("transaction") %>" visible="<%# Eval("Type").ToString() <> "INV" %>" />

Thanks, Ed

Microsoft MVP - ASP/ASP.NET

8/27/2008 3:02:34 PM

I still get error server tag not well formed for the -


  <asp:hyperlink id="HyperLink1" runat="server" navigateurl="<%# Eval("invoiceno") %>.pdf" text="<%# Eval("transaction") %>" visible="<%# Eval("Type").ToString().Equals("INV") %>" />


  <asp:label id="Label1" runat="server" text="<%# Eval("transaction") %>" visible="<%# Eval("Type").ToString() <> "INV" %>" />




8/27/2008 3:09:40 PM

How about this? 

		<asp:hyperlink id="HyperLink1" runat="server" navigateurl='<%# Eval("invoiceno", "{0}.pdf") %>'
			text='<%# Eval("transaction") %>' visible='<%# Eval("Type").ToString().Equals("INV") %>' />
		<asp:label id="Label1" runat="server" text='<%# Eval("transaction") %>' visible='<%# Eval("Type").ToString() <> "INV" %>' />

Thanks, Ed

Microsoft MVP - ASP/ASP.NET

8/27/2008 3:17:36 PM

Absolutely perfect!

you are a life saver!

8/27/2008 3:34:14 PM

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