Find a textbox based on string and change its Text

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 :'(

possible duplicate of [WPF ways to find controls](http://stackoverflow.com/questions/636383/wpf-ways-to-find-controls) — M.Babcock, Feb 16 '12 at 13:39
http://stackoverflow.com/questions/636383/wpf-ways-to-find-controls This question looks it may help you. — Altair, Feb 16 '12 at 13:39

score 3 · Accepted Answer · answered Feb 16 '12 at 13:38

3

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;

answered Feb 16 '12 at 13:38

Kamil Lach

4,519
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whats the namespace for Findcontrol. I cant seem to find it – Yagzii Aug 20 '14 at 15:51

score 1 · Answer 2 · answered Feb 16 '12 at 13:49

1

You can find the control with this.FindControl:

    TextBox txt = this.FindControl("txtboxNumbers") as TextBox;

    // check if the control was found
    if(txt != null)
    {
       txt.Text = "whatever you want";
    }

answered Feb 16 '12 at 13:49

Schiavini

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Find a textbox based on string and change its Text

2 Answers2