CODEWITHSUNDEEP
c#
jamieeee
jamieeee

Reputation: 1

Calling parent page method from child control in C#

I have a child UserControl which is dynamically loaded into a parent page.

ChildControl childcontrol = this.LoadControl("") as ChildControl;

I have to call one of the methods in the parent page from this childUserControl. How do we do that?

Thanks

Upvotes: 0

Views: 2405

Answers (2)

djdd87
djdd87

Reputation: 68506

You shouldn't write a control that relies on a method being on the page, so the best thing to do would be to expose and handle an event from the child control. Add the following to your child control:

public event OnSomethingHandler Something;
public delegate void OnSomethingHandler(ChildControl sender);

Then when you want to fire the page method in question, fire off the event:

public void FireParentMethod()
{
    if (Something != null)
    {
        Something(this);
    }
}

The all you need to do is handle the event on the page (in markup or in code as follows):

childUserControl.Something+= 
    new ChildControl.OnSomethingHandler(ChildControl_OnSomething);

And add the handler to the code behind:

protected void ChildControl_OnSomething(ChildControl sender)
{
    FirePageMethod();
}

Upvotes: 3

Esteban Araya
Esteban Araya

Reputation: 29664

Cast the parent of the control as the specific type of your page and then call the method.

Upvotes: 0

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