Question

For example, I have a user control(ascx) with a label inside,
I will use the the user control in my aspx page.

How can I pass a string value to the ascx page so that it can be display in the label of ascx page at the beginning?

Answer 1

Add this…

public string Whatever
{
get { return label.Text; }
set { label.Text = value; }
}

to your ascx control. Then from the page you are putting it in you can just set the text like… usercontrol.Whatever = "text to display";

or you can use the Whatever as a property on the aspx side of the page.