Converting XAML Textbox to C# with Validation

Question

I am trying to convert this xaml textbox with validation into C# so that it can be dynamically created and populated from code. I am getting stuck creating the validation bindings. Can anyone provide any hints?

<TextBox Height="20" Width="200" >
      <Binding RelativeSource="{x:Static RelativeSource.Self}" Path="Text" >
           <Binding.ValidationRules>
                <runtime:StandardTextBoxValidationRule/>
           </Binding.ValidationRules>
       </Binding>
</TextBox>

Are you just dynamically creating the textbox from within the WPF page? — James Black
– James Black, Commented Sep 4, 2009 at 17:53
No it is being created in a control generating class that is with in the same assembly as the WPF page. — KithKann
– KithKann, Commented Sep 4, 2009 at 17:57

Reed Copsey · Accepted Answer · 2009-09-04 19:02:49Z

1

You can do it like so:

TextBox textBox = // Get or create the text box

var binding = new Binding();
binding.Source = RelativeSource.Self;
binding.Path = new PropertyPath("Text");
binding.ValidationRules.Add(new StandardTextBoxValidationRule());
textBox.SetBinding(TextBox.TextProperty, binding);

edited Sep 4, 2009 at 19:02

answered Sep 4, 2009 at 18:14

Reed Copsey

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3 Comments

KithKann Over a year ago

I had to add the following to get it working binding.Path = new PropertyPath("Text"); Thanks again.

Reed Copsey Over a year ago

Glad it worked. I added that to my answer, as well, in case other poeple find this.

Pavel Minaev Over a year ago

You can also use new Binding("Text")

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