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Elegant VB.NET Data Type Conversion RSS

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Last post Sep 20, 2011 07:02 PM by atconway

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l1k3m1k3

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Elegant VB.NET Data Type Conversion

Sep 15, 2011 08:51 AM|LINK
Like C# can with this code:
```
((GridView)Container.NamingContainer).PageIndex + 1
```
- Moved by XIII on Sep 17, 2011 09:35 AM
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anas

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Re: Elegant VB.NET Data Type Conversion

Sep 15, 2011 09:18 AM|LINK
In VB.NET, it should works without any casting:
```
Container.NamingContainer.PageIndex + 1
```
Anas Ghanem
- Edited by anas on Sep 15, 2011 09:20 AM
- Edited by anas on Sep 15, 2011 09:20 AM
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l1k3m1k3

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Re: Elegant VB.NET Data Type Conversion

Sep 16, 2011 01:45 AM|LINK

I got this error:

'PageIndex' is not a member of 'System.Web.UI.Control'.
- Edited by l1k3m1k3 on Sep 16, 2011 01:46 AM
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anas

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Re: Elegant VB.NET Data Type Conversion

Sep 17, 2011 09:33 AM|LINK
Not sure why the implicit conversion is not working.You can try the explicit conversion like this:
```
Ctype(Container.NamingContainer,GridView).PageIndex + 1
```
Anas Ghanem
- Marked as answer by Damon Liu - MSFT on Sep 22, 2011 08:02 AM
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rossmc1

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Re: Elegant VB.NET Data Type Conversion

Sep 17, 2011 10:05 PM|LINK

DirectCast(Container.NamingContainer,GridView).PageIndex + 1

is the equivilant to the above C# syntax

java generics wildcards
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atconway

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Re: Elegant VB.NET Data Type Conversion

Sep 20, 2011 07:02 PM|LINK

If you want to understand why you have to cast the NamingContainer to its type and how to do it in the future, have a look to the following:

How to: Access Members of a Control's Naming Container

http://msdn.microsoft.com/en-us/library/858twd77.aspx

Thank you, >[Blog]<
- Marked as answer by Damon Liu - MSFT on Sep 22, 2011 08:02 AM