convert type with (expression as type) with typeof object

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Hi,

I want to remove user control from it's parent by code inside the user control

,then if the parent is StackPanel i use:

C#

(this.Parent as StackPanel).Children.Remove(this);

but the parent is not for StackPanel only, so i have to make type of conversion of "as" to be dynamic, by using this code

C#

 Type parentType = this.Parent.GetType();
(this.Parent as parentType ).Children.Remove(this);

but this is error :

Error	15	The type or namespace name 'parentType' could not be found (are you missing a using directive or an assembly reference?)

so, is it any solution to close/dispose/remove the usercontrol from it's code self?

Thank you.

Posted 18-Dec-13 20:43pm

Irvan Munadi

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phil.o · Answer 1 · 2013-12-18T22:50:00

Solution 2

C#

StackPanel panel = this.Parent as StackPanel;
if (panel != null) {
   panel.Children.Remove(this);
}

should do it.

Posted 18-Dec-13 22:50pm

phil.o

Comments

Irvan Munadi 19-Dec-13 5:34am

It's only work if the parent of usercontrol is StackPanel.
i want it to be dynamic, without hardcode the entire Object that could have children.

Member 10434230 · Answer 2 · 2013-12-18T22:48:00

Given your hierarchy, you will have to write a conversion operator.

check below sample code:

Class 1:
public class obj1
{
public string a;

public void test1()
{
}
}

Class 2:
public class obj2
{
public string b;

public void test2()
{
}

public static explicit operator obj2(obj1 b)
{
return new obj2
{
b = b.a
};
}
}

CONVERSION:
obj1 o1 = new obj1();
o1.a = "new_text";
obj2 o2 = (obj2)o1; //converting object of type obj1 to obj2

Check if you are able to typecast "this.Parent" to ParentType