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.NET Forum / Windows Forms / Design Time / June 2005

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Default a String Property of Control with a unique value

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fatboy - 01 Jun 2005 21:04 GMT
I'm trying to create a form that has a unique GUID as a property whenever a
new one is created.  However this won't store the generated GUID unless i
manually change it in the deisgner and click on another property.

How do i get it to save the original GUID.

My (useless) code example is below:

public class GUIDForm : System.Windows.Forms.Form
{
private string m_SecurityGuid;

public string SecurityGUID
{
get
{
if(m_SecurityGuid == null)
{
m_SecurityGuid = Guid.NewGuid().ToString();   
}
return m_SecurityGuid;
}
set
{
m_SecurityGuid = value;
}
}
}

Hope someone can help

thanks
fatboy
joeycalisay - 07 Jun 2005 12:12 GMT
you have to notify the designer through typedescriptor...

how about setting the SecurityGUID property on the constructor of
GUIDForm:

public GUIDForm()
{
TypeDescriptor.GetProperties(this)["SecurityGUID"].SetValue(this,
Guid.NewGuid().ToString());
}

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