Silverlight 4: Binding to a calculation of control properties

Posted by Rich.Carpenter on Stack Overflow See other posts from Stack Overflow or by Rich.Carpenter
Published on 2010-05-25T13:33:00Z Indexed on 2010/05/25 19:51 UTC
Read the original article Hit count: 229

Filed under:

Silverlight

|

binding

|

properties

|

silverlight-4.0

What I would like to do is pretty simple. Given textboxes for ItemPrice, Tax and Total, I need the text value for Total to be bound to ItemPrice + Tax and the Tax value to display ItemPrice * taxRate.

Could someone offer a brief explanation as to how this would be accomplished or point me to an appropriate example? I see property binding examples all over the place, but none that show binding to a calculation of the properties of two controls.

© Stack Overflow or respective owner

Related posts about Silverlight

Silverlight 4 Released

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
The final release of Silverlight 4 is now available. What is in the Silverlight 4 Release Silverlight 4 contains a ton of new features and capabilities. In particular we focused on three scenarios with this release: Further enhancing media support Building great business… >>> More
Performance of Silverlight Datagrid in Silverlight 3 vs Silverlight 4 on a mac

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm using Silverlight Beta 4 for a LOB application. After finding out today that I'll have to wait perhaps 4 months to be able to develop with SL4 on Visual Studio 2010 I'm thinking I need to downgrade my application to SL3 but thats another question. The problem is I'm noticing absolutely abismal… >>> More
Silverlight TV 15: Announcing Silverlight 4 RC at MIX 10

as seen on Dot net Slackers - Search for 'Dot net Slackers'
John and Adam discuss Silverlight 4 RC, following up the MIX10 keynote announcement of Silverlight 4 RC by discussing what is new and what materials have been released on the Channel 9 learning center website. They cover their picks for some of the most impactful features in Silverlight 4 RC… >>> More
Silverlight TV 14: Developing for Windows Phone 7 with Silverlight

as seen on Dot net Slackers - Search for 'Dot net Slackers'
Silverlight TV is here at MIX10 where Windows Phone 7 (WP7) and Silverlight just became the best match since peanut butter and chocolate! Mike Harsh, Program Manager for the Silverlight team working on WP7, joins John Papa to demonstrate the WP7 device and the tooling used to create applications for… >>> More
Silverlight Commands Hacks: Passing EventArgs as CommandParameter to DelegateCommand triggered by Ev

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
Today I've tried to find a way how to pass EventArgs as CommandParameter to DelegateCommand triggered by EventTrigger. By reverse engineering of default InvokeCommandAction I find that blend team just ignores event args.To resolve this issue I have created my own action for triggering delegate commands… >>> More

Related posts about binding

WPF Binding Error reported when Binding appears to work fine

as seen on Stack Overflow - Search for 'Stack Overflow'
I am trying to create a custom TabItem template/style in my WPF 4.0 application (using VS 2010 Pro RTM), but inspite of everything seeming to work correctly, I am noticing a binding error in the trace window. The resource dictionary XAML I use to style the TabItems of a TabControl is given in full… >>> More
wpf binding by selected value - swap out bound object without disturbing binding

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I've got combo box bound to a custom collection type - its basically an overridden ObservableCollection which I've added a facility to update the underlying collection (via Unity). I don't want to confuse the issue too much, but thats the background. My xaml looks like this <ComboBox ItemsSource="{Binding… >>> More
Custom Binding Part 2: creating a Basic REST service using CUSTOM Binding

as seen on C# Corner - Search for 'C# Corner'
In this article, I am going to show you how we could create a basic WCF REST service using custom binding. >>> More
OneWay binding throws "TwoWay binding is invalid on Read only property"

as seen on Stack Overflow - Search for 'Stack Overflow'
This binding <tk:DataGridTextColumn Binding="{Binding Path=Id, Mode=OneWay}" Header="Sale No." Width="1*" /> Gives this error A TwoWay or OneWayToSource binding cannot work on the read-only property 'Id' of type . . . The "Id" property is indeed readonly, I thought though that… >>> More
Flex Error: Repeater is not executing.

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello Everyone, I have been trying to get a Repeater to work since yesterday. It works the first time it has been loaded with data but the second time, it is loaded, the following error results with the debugger higlighting a row with the statement isHandlingEvent = false; in the watcherFired method… >>> More