Wpf Trigger (If contains value)

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Hello,

I have a trigger:

XML

<Style.Triggers>
    <DataTrigger Binding="{Binding Path=JOB_NUMBER}" Value="*MVR*">
        <Setter Property="Foreground" Value="Red"></Setter>
    </DataTrigger>
</Style.Triggers>

If the PRODUCT_NAME = "L" then the foreground color will be red. That is okay.

How can I use this trigger, if not equal but contains this value.

For ex.:

123L-01
124L-01

Cells must have red.

Is there some kind of replacement character? %L%?

Could you offer some solution?

I have been looking for solution for a long time...

Thank you!

Posted 6-Mar-15 4:48am

vrobi88

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2 solutions

Solution 1

In all more complex cases when binding of the dependency property to some other properties is not enough, such as in case of taking some conditions into account, you have to trigger the property modification in code behind, which is as trivial as just using the property as it is usually used in code, in response to the event you need to handle.

—SA

Posted 6-Mar-15 4:55am

Sergey Alexandrovich Kryukov

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TheRealSteveJudge · Accepted Answer · 2015-03-06T04:58:00

A so-called value converter might help you.
Please have a look here:
http://www.wpftutorial.net/ValueConverters.html[^]
In the Convert method you must return 'L' if value contains 'L'

C#

using System;
using System.Windows.Data;

namespace SharepointWebServiceTest
{
    class LConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if(value.ToString().Contains("L"))
            {
                return "L";
            }
            else
            { 
                return value; 
            }
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
}