Re: Binding two comboboxes in WPF - WPF Discussion Boards

Re: Textboxes

boiDev18-Jan-09 23:01

boiDev

18-Jan-09 23:01

thank you

Re: Textboxes

Mohammad Dayyan19-Jan-09 19:29

Mohammad Dayyan

19-Jan-09 19:29

AFAIK we can access to each elemant of a Window1.xaml with the namespace & class name of it.

Binding two comboboxes in WPF

boiDev14-Jan-09 22:08

boiDev

14-Jan-09 22:08

Hi all

Im trying to bind two comboboxes together. I have a table called country and a table called city in SQL database. When a user selects a country in the countrycombox i want it to filter the cities that are in that country and show them on the city Combobox.

Can some one help me please.

Thanks in advance

Re: Binding two comboboxes in WPF

sdixit11014-Jan-09 23:14

sdixit110

14-Jan-09 23:14

hello dear,
you can add one column in country table and one coulmn in city table the name of column may be "ExamineId" in both ethe tables then in country table put integer value(1,2,3,4,5.....) for every country in "ExamineId" column.and put the corresponding number for cities in city table.
like in country table
ExamineId country
1 country1
2 country2

in city table
ExamineId city country
1 abc country1
1 xyz country1
1 wpg country1
2 ghf country2
2 yhk country2
2 poi country2

select ExaminId from country table for selectes country and take it in one string type variable say "EId".
then make query for combobox2 as

select * from city where ExamineId = EId
and put all the data in combobox2.
hope it'll help u.... Laugh | :laugh:

sandy

Re: Binding two comboboxes in WPF

boiDev14-Jan-09 23:22

boiDev

14-Jan-09 23:22

thank you

Re: Binding two comboboxes in WPF

Moim Hossain16-Jan-09 10:31

Moim Hossain

16-Jan-09 10:31

This seems a ridiculous idea to solve this kind of problem- "Changing backend to render UI" !! Crazy!!!

This should be very simple one...You better do a "Google" with the search keyword- "IsSynchronizeCurrentItem in WPF" rather changing the database schema.

sdixit110 wrote:
you can add one column in country table and one coulmn in city table the name of column may be "ExamineId" in both

I am wondering how people find solutions like this...BAD SOLUTIONS!!!

Moim Hossain
R&D Project Manager
BlueCielo ECM Solutions BV

Re: Binding two comboboxes in WPF

Pete O'Hanlon16-Jan-09 11:22

Pete O'Hanlon

16-Jan-09 11:22

Well said. +5.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

My blog | My articles | MoXAML PowerToys

Re: Binding two comboboxes in WPF

Pete O'Hanlon14-Jan-09 23:25

Pete O'Hanlon

14-Jan-09 23:25

This is the general logic:

<StackPanel Orientation="Horizontal" DataContext="{Binding Source={StaticResource mySource}}">
  <ComboBox ItemsSource="{Binding}" IsSynchronizedWithCurrentItem="True" />
  <ComboBox ItemsSource="{Binding}" IsSynchronizedWithCurrentItem="True" />
</StackPanel>

Obviously, you need to put your binding source into the context, and the paths you want to work with (plus any item templates you see fit), but this should get you started.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

My blog | My articles | MoXAML PowerToys

Getting Error on Grid Tag

mr_muskurahat14-Jan-09 19:14

mr_muskurahat

14-Jan-09 19:14

how can i resolve this problem in xaml file when ever i try to add
<grid> --- error (element expected...)

umerumerumer

Re: Getting Error on Grid Tag

Mark Salsbery16-Jan-09 7:22

Mark Salsbery

16-Jan-09 7:22

Provide the expected element!

Seriously, a code sample would really help us help you.

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Getting Error on Grid Tag

Mohammad Dayyan19-Jan-09 17:50

Mohammad Dayyan

19-Jan-09 17:50

Please post your XAML code.

Using application settings on a DataTemplate markup [modified]

LeonardoHSM14-Jan-09 4:53

LeonardoHSM

14-Jan-09 4:53

Binding a property to a setting worked:

<Window x:Class="test"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:prop="clr-namespace:GTOWPF"
    Height="{Binding Source={x:Static prop:Settings.Default}, Path=Win1H}"
    Width="300">

Binding a property inside a datatemplate:

<Window x:Class="test"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:prop="clr-namespace:GTOWPF"
    Height="100"
    Width="300">
    <Window.Resources>
        <DataTemplate x:Key="Test">
            <Grid Height="{Binding Source={x:Static prop:Settings.Default}, Path=Win1H}">
            </Grid>
        </DataTemplate>
    </Window.Resources>
</Window>

Doesn't work,
Only public classes can be used in markup. 'Settings' type is not public.

Any sugestions? Confused | :confused:

modified on Wednesday, January 14, 2009 11:15 AM

Re: Using application settings on a DataTemplate markup

ColinM12314-Jan-09 11:36

ColinM123

14-Jan-09 11:36

The setting class is a generated class I think.
In the help it says there is an "Access Modifier" (I don't have it!) in the Properties --> Settings page. If you can find this change it to public.

Aah, more here
http://social.msdn.microsoft.com/Forums/en-US/csharpgeneral/thread/d78ea62f-8950-4f7f-92b4-dbfddaeec0da/[^]

Online Guitar Tools

Re: Using application settings on a DataTemplate markup

LeonardoHSM14-Jan-09 22:11

LeonardoHSM

14-Jan-09 22:11

Thanks,

Default Access Modifier was set to Friend. D'Oh! | :doh:

WCF max data transfer

Member 236391614-Jan-09 4:36

Member 2363916

14-Jan-09 4:36

When i pass large amount of data through wcf it gives error of max data

Please tell how to solve this

Re: WCF max data transfer

Pete O'Hanlon14-Jan-09 5:18

Pete O'Hanlon

14-Jan-09 5:18

Increase the maxReceivedMessageSize on the binding.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

My blog | My articles | MoXAML PowerToys

Resource not found

RugbyLeague14-Jan-09 4:25

RugbyLeague

14-Jan-09 4:25

I keep getting the following message:

System.Windows.ResourceDictionary Warning: 9 : Resource not found; ResourceKey='#FF646464'; ResourceKey.HashCode='47980820'; ResourceKey.Type='System.Windows.Media.SolidColorBrush'

How do I find out what is causing that?

Re: Resource not found

Mark Salsbery16-Jan-09 7:31

Mark Salsbery

16-Jan-09 7:31

Did you figure this out yet?

Just a wild guess, but that "ResourceKey='#FF646464'" looks like
an ARGB color associated with a ResourceKey somehow - maybe some
malformed XAML defining a brush somewhere...

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Resource not found

geofft_gallagher16-Mar-09 16:33

geofft_gallagher

16-Mar-09 16:33

While working on a WPF app, I thought I should try and be proper, and honour the color scheme on the host system, rather than inflicting my idea of colors on to the user, and I got this error too.

I was making a ListView control template that adds a border, and hence I started to add "IsSelected" triggers to highlight focused items. The color values I used were things like:

{DynamicResource {x:Static SystemColors.HighlightColor}}
{DynamicResource {x:Static SystemColors.HighlightTextColor}}
{DynamicResource {x:Static SystemColors.ControlDarkColor}}

If I now run my app, I get a bunch of debug message like

System.Windows.ResourceDictionary Warning: 9 : Resource not found; ResourceKey='#FF000000'
System.Windows.ResourceDictionary Warning: 9 : Resource not found; ResourceKey='#FFB2B4BF'

Reverting to hard coded colours removes the problem.

How do I return a collection as a return type using PageFunction?

gsdeepak14-Jan-09 2:46

gsdeepak

14-Jan-09 2:46

Hi,

In my WPF application I need to return a collection as return type using a PageFunction. Is it possible? If yes how do I do it?

Thanks & Regards,
Deepak.

MoXAML Version 2.3 released.

Pete O'Hanlon13-Jan-09 22:35

Pete O'Hanlon

13-Jan-09 22:35

In response to a recent blog entry[^] by Josh Smith where he talks about the default scope of XAML variables, and how to change them to private, I've updated MoXAML PowerToys[^] to automatically search for elements in your XAML with the x:Name attribute set (and without the FieldModifier set). Any matches automatically get x:FieldModifier="private" added to them.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

My blog | My articles | MoXAML PowerToys

Re: MoXAML Version 2.3 released.

Mark Salsbery14-Jan-09 10:51

Mark Salsbery

14-Jan-09 10:51

Yay Pete!

Badger | [badger,badger,badger,badger...]

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Finding objects displayed through data template

dimaj13-Jan-09 12:21

dimaj

13-Jan-09 12:21

Hello All!

I'm trying to test a WPF application which displays most of the information using DataTemplates. The problem that I'm facing right now is that data in the template is not visible neither by the UI Automation framework nor by the UISpy tool.

Has anyone seen this behavior?

Suggestions are appreciated.

dimaj

Re: Finding objects displayed through data template

meetsiva18-Sep-09 3:58

meetsiva

18-Sep-09 3:58

I am also facing the same problem. Seems 'Project white' or UI Automation framework for WPF is not stabilized. Seems some IBM automation test tool captures events of WPF which UISpy cannot.

Resource A = Resource B??

_iobuf13-Jan-09 11:06

_iobuf

13-Jan-09 11:06

Is it possible to assign a resource to another resource? For example, if I have a SolidColorBrush named MyBursh01, can I make a MyBrush02 that has the same values as MyBrush01, or can I make a Rectangle named Rect2 and make it = Rect1?

I am referring to making it in XAML not C#

Thanks

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