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ASP.NET/VB: Only if not blank

Posted on 2011-09-06
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Last Modified: 2012-06-27
I use this VB ASP.NET code to display the publication title and content:
<p> 
<strong><%#Container.DataItem("PublicationTitle")%></strong><br />
<%#Container.DataItem("Content")%>
</p>

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I only want the first line to be send if the publication title is NOT blank.  This does NOT work:

<p> 
[IF #Container.DataItem("PublicationTitle")]<strong><%#Container.DataItem("PublicationTitle")%></strong><br />[END-IF]
<%#Container.DataItem("Content")%>
</p>

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Question by:hankknight
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  • 2
6 Comments
 
LVL 28

Expert Comment

by:strickdd
ID: 36490174
<p>
<% If Not String.IsNullOrEmpty(Container.DataItem("PublicationTitle")) Then
 Response.Write("<strong>" & Container.DataItem("PublicationTitle") & "</strong><br />")
 End If %>
<%#Container.DataItem("Content")%>
</p>
0
 
LVL 16

Author Comment

by:hankknight
ID: 36490245
That code gives me an error:

Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: BC30451: Name 'Container' is not declared.

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LVL 28

Expert Comment

by:strickdd
ID: 36490271
Sorry, my bad, I was thinking something else...

<p>
<%# GetTitleText(Container.DataItem("PublicationTitle")) %>
<%#Container.DataItem("Content")%>
</p>


public function GetTitleText(title As Object) As String
    If String.IsNullOrEmpty(title.ToString()) Then
       Return ""
    Else
       Return "<strong>" & title.ToString() & "</strong></br>"
    End If
end function
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LVL 11

Expert Comment

by:SAMIR BHOGAYTA
ID: 36490284
Hello, you have to use IIf(IsDBNull) function for that.
0
 
LVL 16

Author Comment

by:hankknight
ID: 36490371
I am still confused.  What code do I need to put where?
0
 
LVL 28

Accepted Solution

by:
strickdd earned 500 total points
ID: 36490440
CODE IN-FRONT:
<p>
<%# GetTitleText(Container.DataItem("PublicationTitle")) %>
<%#Container.DataItem("Content")%>
</p>


CODE BEHIND
public function GetTitleText(title As Object) As String
    If String.IsNullOrEmpty(title.ToString()) Then
       Return ""
    Else
       Return "<strong>" & title.ToString() & "</strong></br>"
    End If
end function
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