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Hi,
I want to hide all the controls in a column in my WPF application.
Note - I dont want to hide column, I want to hide its contents only.
Please help me.
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Where are the columns ? Are they on a DataGrid, ListView or normal Grid ?
When I was a coder, we worked on algorithms. Today, we memorize APIs for countless libraries — those libraries have the algorithms - Eric Allman
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Then I think that you are going to have to create a boolean property in your codebehind/viewmodel, and bind each control to this property. Then whenever you want to show or hide your controls you can just set the property accordingly.
Hope this helps
When I was a coder, we worked on algorithms. Today, we memorize APIs for countless libraries — those libraries have the algorithms - Eric Allman
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Thanks You very much . but i am new to wpf can you tell me how can i bind control to property.
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You should do something like this:-
Fisrt of all create a Boolean property in your code behind that you can bind to(ensure your code file uses the INotifyProperty Interface[^] and your property setter raises the PropertyChanged event)
Then declare the Converter that will set your control's Visibility property to Hidden if your boolean property is true like this:
<Grid.Resources>
<BooleanToVisibilityConverter x:Key="HiddenConverter" />
</Grid.Resources>
Then in your XAML you bind the control's Visibility property to the boolean property, declaring the Converter property to use the HiddenConverter set up previously.
<Label Grid.Column="1" Content="Label1" Visibility="{Binding Path=ShowControls, Converter={StaticResource HiddenConverter}" Margin="3"/>
Then whenever you change the state of your boolean property, the control will be shown/hidden appropriately
Hope this helps
When I was a coder, we worked on algorithms. Today, we memorize APIs for countless libraries — those libraries have the algorithms - Eric Allman
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Why not just create a Visibility property? that way you don't need the converter... unless you are using the bool elsewhere, of course  .
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ı try to Use 1 Storyboard and more than 1 Button on Web Site.
1 Storyboard in UserControl.Resources
<UserControl.Resources>
<!--
<Storyboard x:Name="myStoryboard">
<!--
<DoubleAnimation
Storyboard.TargetName="myDropShadowEffect"
Storyboard.TargetProperty="ShadowDepth"
To="30" Duration="0:0:0.5"
AutoReverse="True" />
<!--
<DoubleAnimation
Storyboard.TargetName="myDropShadowEffect"
Storyboard.TargetProperty="BlurRadius"
To="10" Duration="0:0:0.5"
AutoReverse="True" />
<DoubleAnimation
Storyboard.TargetName="myScaleTransform"
Storyboard.TargetProperty="ScaleX"
To="1.5" Duration="0:0:0.5"
AutoReverse="True" />
<DoubleAnimation
Storyboard.TargetName="myScaleTransform"
Storyboard.TargetProperty="ScaleY"
To="1.5" Duration="0:0:0.5"
AutoReverse="True" />
<DoubleAnimation
Storyboard.TargetName="myTranslateTransform"
Storyboard.TargetProperty="X"
To="-30" Duration="0:0:0.5"
AutoReverse="True" />
<DoubleAnimation
Storyboard.TargetName="myTranslateTransform"
Storyboard.TargetProperty="Y"
To="-30" Duration="0:0:0.5"
AutoReverse="True" />
<!--
<!--
<!--
<!--
</Storyboard>
</UserControl.Resources>
And The Button Controll in The grid Layout
<Button Content="Click!" Click="StartAnimation" Width="200" Margin="20,6.25,16,7.625" Grid.Row="2" d:LayoutOverrides="VerticalAlignment, VerticalMargin" Style="{StaticResource ButtonStyle1}">
<Button.Effect>
<DropShadowEffect x:Name="myDropShadowEffect" />
</Button.Effect>
<Button.RenderTransform>
<TransformGroup>
<TranslateTransform x:Name="myTranslateTransform" />
<ScaleTransform x:Name="myScaleTransform" />
</TransformGroup>
</Button.RenderTransform>
</Button>
Code Behind:
//button1
private void StartAnimation(object sender, RoutedEventArgs args)
{
myStoryboard.Begin();
}
 The 1 Button Action Work Well
for same actions to another buttons ı coppy storyboard renamed to equal it to button name is work
Here is The Question? for each button ı wrıte same Storyboard just name diferent do ı must use this method or there is better solution(Tick&Tricks) is it Possible To Use 1 Storyboard And 2 or More Button Use Same Storyoard I ask this Because ı Dont Want make large .xap thx 
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For my application I need to have different context menus for different text boxes. One of the features I wanted to add to the context menu was the ability to add words to a custom dictionary as the application will be used in a technical field where a lot of words won't be in a standard dictionary. I found a snippet of code online that showed how to do this, however it is in C# and uses a lambda expression that I'm having a very hard time converting. The specific line of code I'm having trouble with is this:
mnuAddToDictionary.Click += (object o, RoutedEventArgs rea) =>
{
this.AddToDictionary(this.txtEdit.SelectedText);
};
mnuAddToDictionary is a menu item and AddToDictionary is the method that actually does work of adding the selected misspelled word to the custom dictionary.
The AddToDictionary method is set up thus:
Public Sub AddToDictionary(ByVal entry as string)
End Sub
The closest I was able to get was AddHandler AddToDictionary.Click, AddressOf AddToDictionary, however I'm getting an error message because the delegate and the method do not have the same signature.
I pretty new to WPF and I'm not familiar with lambda expression yet because I never needed them. Any help would be greatly appreciated as I'm at a loss of what to do now. Any help would be greatly appreciated and thanks in advance.
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The Click handler has to have a signature of object, RoutedEventArgs. You'd have to have an intermediate function with that signature that then calls your AddToDictionary function. Probably why they used a lambda . Vb.net supports lambdas too. I don't know vb.net very well, but I think the syntax is something like:
mnuAddToDictionary.Click = Sub(o, e)
AddToDictionary(txtEdit.SelectedText)
End Sub
Or you can just point it to an intermediate function as I said.
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I was trying something along those lines however when I try to create the lambda expression I get this error message:
Public Event Click(sender As Object, e As System.Windows.RoutedEventArgs) is an event, and cannot be called directly. Use a
That's why I was trying to use the AddHandler method because I can't figure out how to hook into the Click event. I think the lambda expression is correct because I don't get any error messages (although I had to change the 'e' to 'rea' because the variable 'e' hides in an enclosing block.
I think I will go with the immediate function but if someone can explain how I can hook into the click event I would appreciate it since that seems to be a neater why to do it over using an intermediate function. Thanks!
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Actually though I think there might be a problem with the intermediate function. I have several text boxes that have this custom context menu so I created a independent function. When you right-click on any of these text boxes, they call this function which know by the sender parameter which text box called it. In that function is where the AddToDictionary menu item is added. If I use AddHandle mnuAddToDictionary, AddressOf AddEntryToDictionary, then when the user clicks on 'Add To Dictionary' how does the AddEntryToDictionary method know which text box the context menu is being currently displayed on? I was thinking I could use a public variable to save the current text box, but I don't think that is a very efficient way.
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Okay...so I finally figured out how to do it. It is actually a combination of the AddHandler method and a lambda expression. The line of code that worked was:
AddHandler AddToDictionary.Click, Sub()
AddEntryToDictionary(selectedText)
End Sub
Originally I was trying to use sender.SelectedText where sender was a ByRef parameter that was the text box that was calling this method, however ByRef parameters apparently can't be used in lambda expressions so I had to do add this line Dim selectedText As String = sender.SelectedText just before the AddHandler line.
Hope this helps others.
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Hi,
Can I set HorizontalContentAlignment=Left and still stretch the contentcontrol to max remaining width of the browser?
Can nybody please help me in this?
Thanks in advance.
Thanks & Regards,
Abdul Aleem Mohammad
St Louis MO - USA
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Hi All,
How can we make contentcontrol aligned left and stretched to the max of the remaining browser size.
Let us suppose I have a content control in which there are few other user controls are loaded. Now can I make the content control to stretch full remaining browser size and still the user control in it be left aligned.
When I make the content control left aligned, the user control is stretching within small area. If I make the control control center aligned, the user control stretching very well to the max size of the remaining size, but coming the center.
Is there any way to stretch it and still remaining as left alignment?
I am really in need please help me. Thanks in advance.
Thanks & Regards,
Abdul Aleem Mohammad
St Louis MO - USA
modified 8-Nov-11 20:03pm.
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indian143 wrote: stretched to the max of the remaining browser size.
Using "*" in the layout width or height usually does this for you.
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Eventhough, ContentControl is not stretching. It stretches when I put its HorizantalContentAlignment property set to stretch, but its content is displayed in the center. This is solving problem of one form but destroying the layout of all the other forms.
So I have to keep HorizantalContentAlignment=Left and HorizantalContentAlignment=Left and still I want the content control to be streched to the max width of the remaining in the browser.
I tried in the following way by using code behind, no way its listening to me. ContentControl is a stubborn control it looks . It doesnt listen to what developers says and but developers have to listen to it . Sorry for my words, but really I am frustrated .
Remember here the actual width of the column in the grid is coming perfectly matching, and I am trying to set the width of the content control to that width. Still content control is not setting its width to the width to which I am setting to.
May be I am wrong, please advice me if you find any issues in my xaml or code behind. I requesting thanks a lot in advance.
Following is the xaml
<UserControl x:Class="Huron.UI.Healthcare.Configuration.Common.TaskWorkContainerView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:regions="clr-namespace:Microsoft.Practices.Prism.Regions;assembly=Microsoft.Practices.Prism"
xmlns:local="clr-namespace:Huron.UI.Healthcare.Configuration.Common"
DataContext="{Binding TaskWorkContainer,Source={StaticResource ConfigSupportViewModelLocator}}">
<Grid ScrollViewer.HorizontalScrollBarVisibility="Auto" ShowGridLines="True" x:Name="parentGrid">
<Grid.RowDefinitions>
<RowDefinition Height="24" />
<RowDefinition Height="*" />
<RowDefinition Height="20" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="10" />
<ColumnDefinition x:Name="grid" MinWidth="744" Width="*" />
<ColumnDefinition Width="10" />
</Grid.ColumnDefinitions>
<Canvas Grid.Row="0" Grid.Column="1" >
<local:TaskWorkContainerHeaderView
Grid.Row="0" Grid.Column="1"
DataContext="{Binding Path=FormHeader}"
VerticalAlignment="Top" />
</Canvas>
<ContentControl Background="Purple" x:Name="parentContentControl"
Margin="0,15,0,0"
Grid.Row="1" Grid.Column="1"
regions:RegionManager.RegionName="{Binding FormData.FormBodyRegionName}"
regions:RegionManager.RegionContext="{Binding FormData}"
VerticalContentAlignment="Stretch"
HorizontalContentAlignment="Left"
HorizontalAlignment="Stretch"
SizeChanged="Content_SizeChanged"/>
<Canvas Grid.Row="2" Grid.Column="1" >
<local:TaskWorkContainerFooterView
Grid.Row="2" Grid.Column="1"
DataContext="{Binding Path=FormFooter}"
Visibility="{Binding Path=FooterVisibility}"
VerticalAlignment="Bottom" />
</Canvas>
</Grid>
</UserControl>
Following is the code behind
void Content_SizeChanged(object sender, SizeChangedEventArgs e)
{
double minWidthOfParent;
if ((parentGrid.ColumnDefinitions[1].MinWidth == null) || (parentGrid.ActualWidth==null))
{
minWidthOfParent = 744;
}
else
{
minWidthOfParent = parentGrid.ColumnDefinitions[1].ActualWidth;
}
parentContentControl.MinWidth = minWidthOfParent;
parentContentControl.Width = minWidthOfParent;
}
Thanks,
Abdul.
Thanks & Regards,
Abdul Aleem Mohammad
St Louis MO - USA
modified 9-Nov-11 13:26pm.
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I'm confused - how can an element be stretched the entire width and be centered at the same time?
I saw your code in your other post...Your grid cell had the correct "*" width setting. The cell was NOT in the left or right column, however, so you can't expect the contentcontrol to stretch to the left or right edges unless those outer columns have 0 width. I would remove all the alignment property settings and remove all margins from the controls. See how it behaves and work from there.
Mark Salsbery
![Java | [Coffee]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/coffee.gif)
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Hi,
Yes ContentControl is center aligned and then only it will stretch to max width. If we put it to the left aligned it will not stretch to the size of the browser, even by using the code behind. I tried by using the code behind as well. But it will stretch to the size of its contents. But they dont want the change to be in all the forms, they want change should be only in parent form.
Can I make its size be max size of the browser and still be left aligned. This Silverlight is freaking tough in sizing yaar.
Dear developers, can anybody please help me, I am in really need buddy. My sprint finishes by this weekend.
Thanks,
Abdul.
Thanks & Regards,
Abdul Aleem Mohammad
St Louis MO - USA
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I'm in the middle of designing a WPF app that is going to have a view with a lot of information. It is a sort of Management Console for an app that we are developing.
I am envisioning some sort of tabbed interface to organize all of the various "things" that this UI has to deal with.
The model part is fairly straightforward; it is going to be accessing an SQL database with lots of different tables.
I am wondering if the "standard" way of doing things would be to create one large view model class that worked with the overall view, or if it is more appropriate to treat each tab like a separate view, with a separate view model for each? Or does that add needless complexity? Or does it even really matter?
Thanks for any advice on the matter.
WE ARE DYSLEXIC OF BORG. Refutance is systile. Your a$$ will be laminated.
There are 10 kinds of people in the world: People who know binary and people who don't.
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Definitely each tab should be its own view and have its own VM. There is no view for managing the tabs per se. Its more of a control that data binds to a collection of views or VMs. Typically it'll bind to a collection of VMs and you'll use DataTemplates to map a View to the VMs and the "control" will auto create the view and wire up the data context, etc. Personally though, I find that backwards as I like to launch a view and have the xaml specify what the VM is through a ViewLocator.
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Thanks for the feedback. I'm seriously considering using DevForce A/F to help me out.
http://drc.ideablade.com/xwiki/bin/view/Documentation/devforce-caliburn[^]
[Edit:] I'm thinking that if we ever decided we needed a web interface, I could leverage the Silverlight support in the above with minimal code changes.
WE ARE DYSLEXIC OF BORG. Refutance is systile. Your a$$ will be laminated.
There are 10 kinds of people in the world: People who know binary and people who don't.
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I'm doing the exact same thing right now. My app has tabs, and on each tab I add & remove user controls at runtime. So it's basically "nested' views. The MainWindowViewModel is responsible for creating the view and viewmodel and handling commands.
I created a TabInfo class. The MainWindowViewModel maintians a collection of TabInfo object. I then use that to manage the tabs.
Everything makes sense in someone's mind
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Cool. Thanks for the feedback!
WE ARE DYSLEXIC OF BORG. Refutance is systile. Your a$$ will be laminated.
There are 10 kinds of people in the world: People who know binary and people who don't.
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Each tab should be a separate view / view model and you should be plugging in /removing views on demand.
There is no concept of creating one large view model that works for all views.
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