WPF: How to bind two TextBoxes across two different user controls

Question

I have two sibling user controls having one TextBoxes each. I need to create a two way binding between these two TextBoxes.

The content posted here is close to my requirement but it describes binding in two controls one in a user control and other in user control's parent. In my case, both the binding controls are in two different user controls, which have a common parent.

Does anyone have an idea about it?

You could bind them both to the same property belonging to the mutual parent. — Ingó Vals
– Ingó Vals, Commented Jan 11, 2012 at 12:24

Anatolii Gabuza · Accepted Answer · 2012-01-11 10:16:09Z

2

Try to use ElementName binding:

Text="{Binding Text, ElementName=SecondTextBox, Mode=TwoWay}"

answered Jan 11, 2012 at 10:16

Anatolii Gabuza

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3 Comments

Arpit Khandelwal Over a year ago

I need to know how to use ElementName when you need to bind text box in user control A from text box in user control B; while A and B have a common parent.

Anatolii Gabuza Over a year ago

@ArpitKhandelwal Ok. Do you use MVVM?

Anatolii Gabuza Over a year ago

@ArpitKhandelwal And what's problem do you get using the code sample above?

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