Can't find this.Controls - what am I missing?

Question

Sorry for a potentially dumb question, I am still new at this. I really appreciate your help. Referring to Get a Windows Forms control by name in C# But I don't have a "this.Controls" available. Is there something I am missing here?

In other words, when I type "this." and visual studio populates a list of option, there is no "Controls" option.

The question you linked to is for Winforms, and you're using WPF. — Powerlord, May 20 '10 at 14:58

score 4 · Answer 1 · answered May 20 '10 at 14:59

4

In WPF, you should try this.FindName(string name)

Button b = (Button)this.FindName("button1");

answered May 20 '10 at 14:59

Anthony Pegram

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score 1 · Answer 2 · answered May 20 '10 at 14:58

1

The link you gave was for Winforms, you are looking for a WPF way to do it which is different.

answered May 20 '10 at 14:58

Brian R. Bondy

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score 1 · Accepted Answer · answered May 20 '10 at 15:13

If you are looking to iterate through the controls for whatever reason, in your Window class, you can iterate through the LayoutRoot's children (e.g.)

    foreach (object o in this.LayoutRoot.Children)
    {
        MessageBox.Show(o.GetType().Name);
    }

Keep in mind that the children can also contain children, so you'll need to delve into each of those as needed.

score 0 · Answer 4 · edited Mar 11 '22 at 07:55

I have to add whats LayoutRoot: because I am new in WPF I did not know whats that

After general research I found them: it's your Grid if you write grid visual studio did not find them what you should do?

go to your window next go to the Grid Start tag : <grid> next add : x:Name="your desired name"

like this : <Grid x:Name="FRM">

now go back to code yourwindow.xaml.cs

not you see it works foreach (object o in this.FRM.Children)

I hope it was useful for a novice like me

score 0 · Answer 5 · answered Sep 11 '22 at 11:43

Yes, this is very important issue when we want to make a change in similar controls in a particular Grid. So after looking up for a while I found out one solution which looks better.

I am performing a Null or Empty check on all the textboxes in my Grid when someone randomly presses the SUBMIT Button

Here is the C# Codeblock

foreach (TextBox tx in Grid1.Children.OfType<TextBox>())
        {
            if (string.IsNullOrEmpty(tx.Text))
            {
                MessageBox.Show("No empty boxes please!");
                return;
            }
        }

Can't find this.Controls - what am I missing?

5 Answers5