Simple databinding question...

In this snippet:

<CheckBox x:Name="chk1">One</CheckBox>
<CheckBox x:Name="chk2" IsChecked="{Binding ElementName=chk1,
Path=IsChecked, Mode=OneWay}">Two</CheckBox>


I expect chk1 to drive chk2, this is true until i manually change status of
chk2, after that chk2 is no longed bound to chk1, is there any reason for
this?


--
Corrado Cavalli [Microsoft .NET MVP-MCP]
UGIdotNET - http://www.ugidotnet.org
Weblog: http://blogs.ugidotnet.org/corrado

When the binding is one way, if you manually set the property on the target
the binding will be discarded.
The solution: use two-way binding or cache the binding before setting the
value.

See this thread for more details:
http://forums.microsoft.com/MSDN/Sho...58462&SiteID=1

--
Valentin Iliescu [MVP - Client Application Development]


"Corrado Cavalli [MVP]" wrote:

> In this snippet:
>
> <CheckBox x:Name="chk1">One</CheckBox>
> <CheckBox x:Name="chk2" IsChecked="{Binding ElementName=chk1,
> Path=IsChecked, Mode=OneWay}">Two</CheckBox>
>
>
> I expect chk1 to drive chk2, this is true until i manually change status of
> chk2, after that chk2 is no longed bound to chk1, is there any reason for
> this?
>
>
> --
> Corrado Cavalli [Microsoft .NET MVP-MCP]
> UGIdotNET - http://www.ugidotnet.org
> Weblog: http://blogs.ugidotnet.org/corrado
>
>
>
>
>

Thanks Valentin!


--
Corrado Cavalli [Microsoft .NET MVP-MCP]
UGIdotNET - http://www.ugidotnet.org
Weblog: http://blogs.ugidotnet.org/corrado