CODEWITHSUNDEEP
wpfxamldevexpress
bananeeek
bananeeek

Reputation: 193

How to bind Mask properties for TextEdit in XAML?

I'm trying to set up a TextEdit box in my WPF project, but I have some problems with my mask.

XAML:

     <dxe:TextEdit x:Name="dxTextEdit" 
                   Height="23" MinWidth="200" Width="Auto"
                   HorizontalAlignment="Right"
                   Text="{Binding Value, Mode=TwoWay}"
                   MaskType="RegEx" 
                   MaxLength="{Binding InputLength}"
                   Mask="{Binding Mask, Mode=TwoWay}"
                   />

Where Mask returns a string like "[a-zA-Z0-9]" and InputLength returns a value. I cannot insert anything in the box or I can insert one character at best. The thing is, the mask works just fine in my SpinEdit box, which is coded like this:

XAML:

     <dxe:SpinEdit x:Name="dxSpinEdit" 
                   Height="23" MinWidth="200" Width="Auto"
                   HorizontalAlignment="Right"
                   Text="{Binding Value, Mode=TwoWay}"
                   MaskType="Numeric"
                   IsFloatValue="{Binding FloatValue}"
                   MinValue="{Binding MinValue}"
                   MaxValue="{Binding MaxValue}"
                   Mask="{Binding Mask, Mode=TwoWay}" 
                   MaxLength="{Binding Path=InputLength}"
                   MaskShowPlaceHolders="{Binding ShowPlaceHolder}"
                   InvalidValueBehavior="WaitForValidValue"
                   MaskUseAsDisplayFormat="True"
                   AllowRoundOutOfRangeValue="True"
                   />

Where Mask returns strings like "d", "n0"

I need to be able to bind input length and a sting that defines my mask inside xaml. Any ideas what I'm doing wrong? I went through most of the devexpress forums and I found something like this: Mask="([a-zA-Z0-9]|\s){0,31}" but it doesn't allow me to modify the length or the regex.

Upvotes: 0

Views: 1216

Answers (1)

DmitryG
DmitryG

Reputation: 17848

In masked mode, the TextEdit.MaxLength property is not operational and must be set to 0. In this instance, the number of characters an end-user can enter is specified by the editor's mask. Take a look at Quantifiers section of Mask Type: Extended Regular Expressions help article to learn how to create an appropriate mask:

[a-zA-Z0-9]{0,_} // you should replace _ with the exact length value

Upvotes: 1

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