Question

I did this in C# –

 foreach (Control ctl in this.groupBox3.Controls)
        {
            if ((ctl is Textbox) && (ctl.Name.Substring(0, 1) != "l"))
            {
                Textbox tmp= (Textbox)ctl;
                tmp.text = "whatever";

Im trying to do something similar in WPF but this time i want to find the textbox based on a string.

So I tried

TextBox temp = (TextBox).Findcontrol("txtboxNumbers");

but it complaints that the “(Textbox)” is a type but its used like a variable and it cant find the Findcontrol method :'(

Answer 1

Ofcource you cannot. Doing this

(TextBox).Findcontrol("txtboxNumbers");

You try to invoke method Findcontrol on Type. Instead try (in window or control *.cs file):

TextBox oTextBox = FindName("txtboxNumbers") as TextBox;