Accepting controls from user control in aspx page

Try this:

TextBox TextBox1 = (TextBox)WebUserControl1.FindControl("TextBox1");
GridView GridView1 = (GridView)WebUserControl1.FindControl("GridView1");

If you don't want to use FindControl and want to have a strongly typed variable in your code ,
Add a TextBox type property to your user control and return the textbox control reference in its get method :

public TextBox InternalTextbox
{
    get
    {
        return TextBox1;
    }
}

By this way you grant outsiders of your user control, the access to internal Textbox1 control.

thanks guys for your replys
i got found

TextBox txtDistrict =(TextBox) LocProduct.FindControl("txtDistict");
Prashanth

And one more problem i want get usercontrol's public varible in my .cs file