Combining controls that are found in the toolbox to create a composite control is possible with the user control.
This would create the .ascx file needed for the development of the user control. In the design view you can add two controls, namely a label and a textbox. And in the code view add the following code to set the properties for the label and the textbox.
public string propText
{
get { return TextBox1.Text; }
set { TextBox1.Text = value; }
}
public string propLbl
{
get { return Label1.Text; }
set { Label1.Text = value; }
}
Hope this will guide you.