Hannes 'Shorty' Decorte's Blog | SharePoint, .Net 2.0, ...

5 invitations for Windows Live Messenger.

Fri, 27 Jan 2006 07:58:38 GMT

All,

I have 5 invitations for Windows Live Messenger. So if you want one, contact me at hannes_decorte at hotmail dot com.

Be fast!!!

CW

Wed, 14 Dec 2005 08:54:32 GMT

Regular Expressions very good website

Thu, 24 Nov 2005 08:49:03 GMT

See it here http://www.regexlib.com

Validating Windows Forms Child Controls in .Net 2.0

Thu, 24 Nov 2005 08:03:20 GMT

There is an interesting new overloaded method in the Form class in .Net 2.0 :

ValidateChildren() and ValidateChildren(ValidationConstraints validationConstraints)

From the MSDN web site:

.NET Framework Class Library

ContainerControl.ValidateChildren Method ()

Note: This method is new in the .NET Framework version 2.0.

Causes all of the child controls within a control that support validation to validate their data.

Return Value

true if all of the children validated successfully; otherwise, false.

Remarks

ValidateChildren will descend a control's hierarchy and examine each control to see if it supports validation. If the control can be selected by the user and its CausesValidation property is true, ValidateChildren will cause the Validating event to occur. If any of the controls cancel the Validating event, this method will return false; otherwise, it will return true.

If a control is bound to a data source, and the Validating event occurs, it will cause the control to push its current data back to the data source.

Calling ValidateChildren is equivalent to calling ValidateChildren with a ValidationConstraints of None.

ValidationConstraints Members

	Member name	Description
	Enabled	Validates child controls whose Enabled property is set to true.
	ImmediateChildren	Validates child controls that are directly hosted within the container. Does not validate any of the children of these children. For example, if you have a Form that contains a custom UserControl, and the UserControl contains a Button, using ImmediateChildren will cause the Validating event of the UserControl to occur, but not the Validating event of the Button.
	None	Validates all child controls, and all children of these child controls, regardless of their property settings.
	Selectable	Validates child controls that can be selected.
	TabStop	Validates child controls that have a TabStop value set, which means that the user can navigate to the control using the TAB key.
	Visible	Validates child controls whose Visible property is set to true.

Enumerating all available public methods in referenced and current assembly

Thu, 24 Nov 2005 06:54:20 GMT

To enumerate all the methods available in a designtime component(e.g. UITypeEditor), start from the IServiceProvider passed to the component.

Get the available types.

ITypeDiscoveryService service = (ITypeDiscoveryService)ServiceProvider.GetService(typeof(ITypeDiscoveryService));
ICollection icolletion = service.GetTypes(typeof(object), true);

For each type in the collection get the public methods

type.GetMethods(BindingFlags.FlattenHierarchy | (BindingFlags.Public | (BindingFlags.Static | BindingFlags.Instance))

If you want to eliminate abstract methods, methods with void as return type, and property get and setters, apply the following check.

!methodInfo.ReturnType.Equals(typeof(void)) && (((methodInfo.GetBaseDefinition().DeclaringType != typeof(object)) & !methodInfo.IsSpecialName) && !methodInfo.IsAbstract)

Based on .Net 2.0

BoundField DataFormatString attribute not being applied.

Wed, 16 Nov 2005 14:26:35 GMT

Version: ASP.net 2.0 RTM

I wasted a few minutes figuring out this one.

You have a BoundField object bound to a field of type DateTime with a DataFormatString attribute but the format string is not being applied.
<asp:BoundField DataField="DateOfBirth" DataFormatString="{0:MM/dd/yyyy}" />

Instead, the field appears to be formatted using its ToString()method like so:

Output: 10/31/2005 7:00:54 PM

Cause

To prevent cross site scripting attacks, the field value is HtmlEncoded. The HtmlEncoding occurs before applying the DataFormatString making the format string have no effect.

Resolution

In this case (ie. when using a field of type DateTime), set HtmlEncode to false.

<asp:BoundField DataField="DateOfBirth" DataFormatString="{0:MM/dd/yyyy}" HtmlEncode="false"/>

Output: 10/31/2005

I am not sure why the ASP.net team decided against HtmlEncoding the string after applying the DataFormatString.

How to switch between settings (C#, VB.NET, ...) in Visual Studio 2005

Tue, 08 Nov 2005 15:56:07 GMT

To change select settings

On the Tools menu, choose Import and Export Settings.
On Welcome to the Import and Export Settings Wizard page, click Import selected environment settings and then click Next.
On the Save Current Settings page, select Yes, save my current settings, and then click Next.
In Which collection of settings do you want to import, select a settings collection from the list and then click Next.
In Which settings do you want to import, expand the list and select only the categories or category items you want to apply to your current settings.
Click Finish.

The Reset Complete page lists any errors associated with resetting your settings under Details.

USB Disks don't recieve drive letter when mounted in Windows 2003

Mon, 07 Nov 2005 10:10:42 GMT

USB Disks don't seem to automaticly get a drive letter in Windows 2003. Also when checking the Disk Manager it states that the disk format is RAW instead of NTFS. The solution is to active automatic disk mounting by:

From a command prompt run: diskpart

Once at the DISKPART> prompt type: automount enable

Then type: exit

That enables automounting of disk drives, including USB drives.

SSL / https Virtual Servers and SharePoint Central Administration problem

Wed, 28 Sep 2005 13:23:50 GMT

A problem I recently encountered was that I couldn't adjust the virtual server settings via SharePoint Central Admin of a virtual server using SSL (https). After some googling it turned out t o be a bug (which apperantly isn't fixed in SP 2 of WSS). So I'll always got the same error:

The server instance specified was not found. Please specify the server's address and port.

The solution/workaround is pretty simple.
Lets say the url looks like this: http://mycentraladminurl:007/SPSecuritySettings.aspx?VirtualServer=https%3a%2f%2fmyvirtualserver.

Notice the https in the VirtualServer parameter. Just change this to http (drop the s) and everything will work.

And by the way here is the link to WSS SP2

Office 2003 Service Pack 2 is here

Wed, 28 Sep 2005 08:27:21 GMT

Download Office 2003 Service Pack 2 (SP2) here