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I am not creating ListViewItems and inserting those. I'm creating new instances of the Steps class and inserting those. The Steps class as a property called Text which is what I want displayed in the list box which is why I'm binding to (<Label Content="{Binding Path=Text}" />). However I wanted the index number prefixed to it, so I was hoping there was some XAML multi-binding expression to add it, without creating an ObservableCollection.
However, if I'm understanding you correctly your saying that I should binding the list box to an ObservableCollection, and when a user clicks btnAddEntry the new Steps instance is added to the ObservableCollection, and use the MultiConverter to present the data for the XAML multi-binding expression?
A black hole is where God tried to divide by zero.
There are 10 kinds of people in the world; those who understand binary and those who don't.
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Well ListViewItem / Potato. I meant that you are inserting stuff into the Items (type ItemCollection) rather then a bound collection. Which it sounds like you are.
ItemCollection doesn't have an IndexOf method while pretty much every other list collection does.
Doesn't have to be an ObservableCollection, but since you have an add / delete / move-up / move-down. I don't know why you wouldn't use ObservableCollection. It does half the work for you.
If you are writing WPF code, it would SERIOUSLY behoove you to get into the habit of NOT operating on the controls themselves and operating on bound objects. That's what WPF was intended for and you can take advantage of a lot of features that you can't take advantage of when operating on the controls themselves.
EDIT: Almost forgot to answer your question lol...
Yes. Your label would use StringFormat on a multi-binding expression (expression 1 would be the return from your MultiValueConverter and expression 2 would be Path=Text). The MultiValueConverter would be Path=ItemsSource and {Binding} (which is the item itself). The MultiValueConverter would return ((ObservableCollection<Whatever>)values[0]).IndexOf(values[1]) + 1;
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I need help, I created a template to personalize my sale (title bar, buttons and so on) the template is in a Diccionari Resources would like to teach me where and what are the procedures to minimize and close the window to use this template, no I ask you to make a complete program guidelines only why I upload a sample project.
File link:http://www.4shared.com/rar/r5WLt9Qpce/WindowStyle.html
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I dont know what you want exactly, but you could take a look at this article i wrote and see if you could use what I wrote about the style. It contains information regarding Resource directory etc:
WPF-Drawing Canvas Control[^]
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My problem is not about styles is rather like giving shares Minimize and close a window with buttons that are in the style of customizing a window.
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It does have a custom minimize button and others, while it is not in the style, it can be placed there.
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Pablo Roberto Cuellar Ribera wrote: what are the procedures to minimize and close the window
In the Click event handler for your minimize button,
Me.WindowState = Windows.WindowState.Minimized In the Click event handler for your close button,
Me.Close()
"As beings of finite lifespan, our contributions to the sum of human knowledge is one of the greatest endeavors we can undertake and one of the defining characteristics of humanity itself"
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I have not found a suitable answer to what I'm looking for, so answer me "Kenneth Haugland" is that if learners have checked the file I uploaded, you will see that your answer does not work. I had to solve my problem and I resolved beginner way and another drawback "Maximize and restore a sale without borders" that I will be posting later, thanks.
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I have a datagrid and I set the ScrollViewer.VerticalScrollBarVisibility="Visible" ScrollViewer.HorizontalScrollBarVisibility="Visible" in file XAML. The Horizontal it works but the Vertical not works.
I tryed to drag the bottom of the window upward and the vertical scrollbar it doesn't work.
<DataGrid Name="dataGrid3" LayoutUpdated="dataGrid3_LayoutUpdated" AutoGenerateColumns="False" IsReadOnly="True" CanUserReorderColumns="False" ScrollViewer.VerticalScrollBarVisibility="Visible" ScrollViewer.HorizontalScrollBarVisibility="Visible" AlternatingRowBackground="LightGray" MouseDoubleClick="OnDoubleClick">
</DataGrid>
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There's nothing inherently wrong there that I can see. It could be that the issue is with the container though - if the margins of the container exceed the size of the window, you could well see that it causes this problem because the grid takes it's sizing from whatever it's a child of. Use Snoop to see what the margins are right back up to the parent window.
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Hi,
I have two stackpanel in my window and I want to remove an item from a stackpanel and add it to another stackpanel. but I want to do that with a moving animation. I dont know how many items each stackpanel has and where are their position.
is this possible ?
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I have a style for a tab header:
<!--Center Tab Style-->
<Style x:Key="CenterTabStyle"
TargetType="{x:Type TabItem}">
<Setter Property="ContextMenu">
<Setter.Value>
<ContextMenu>
<MenuItem Header="Close"
Command="{Binding CloseTabCommand}"
CommandParameter="{Binding Path=PlacementTarget, RelativeSource={RelativeSource AncestorType=ContextMenu}}"/>
<MenuItem Header="Close All But This"
Command="{Binding CloseAllOtherTabsCommand}"/>
</ContextMenu>
</Setter.Value>
</Setter>
<Setter Property="HeaderTemplate">
<Setter.Value>
<DataTemplate >
<Grid HorizontalAlignment="Stretch" Height="22">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="20" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="2" ></RowDefinition>
<RowDefinition Height="Auto" ></RowDefinition>
</Grid.RowDefinitions>
<TextBlock Grid.Row="1"
Text="{Binding RelativeSource={RelativeSource AncestorType={x:Type TabItem} }, Path=Header}"
VerticalAlignment="Bottom" Margin="4,0,8,0"/>
<Button Grid.Row="1"
Grid.Column="1"
Height="16"
Width="16"
BorderBrush="{x:Null}"
Background="{x:Null}"
Foreground="#FF224A71"
VerticalAlignment="Center"
Padding="3,0"
Command="{Binding RelativeSource={RelativeSource AncestorType={x:Type TabItem}}, Path=DataContext.CloseTabCommand}"
CommandParameter="{Binding RelativeSource={RelativeSource AncestorType={x:Type TabItem}}}">
<TextBlock Text="x"
VerticalAlignment="Center"
HorizontalAlignment="Center"
Margin="0,0,0,2"/>
<Button.OpacityMask>
<LinearGradientBrush EndPoint="0.5,1"
StartPoint="0.5,0">
<GradientStop Color="Black" Offset="0"/>
<GradientStop Color="#4BFFFFFF" Offset="1"/>
</LinearGradientBrush>
</Button.OpacityMask>
</Button>
</Grid>
</DataTemplate>
</Setter.Value>
</Setter>
<Setter Property="Background" Value="White"/>
</Style>
If I put this at the top of my view in the UserControl.Resources it works fine. If I move it to the resource file it doesn't work.
What am I doing wrong?
If it's not broken, fix it until it is
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Have you included your ResourceDictionary in your ResourceDictionary.MergedDictionaries? It's not enough just to have a resource dictionary, you have to tell the application about it (normally in App.xaml).
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Yes I did
If it's not broken, fix it until it is
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I have this checkbox column in a DataGrid
<DataGridTemplateColumn Header="Complete"
Width="200">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<CheckBox IsChecked="{Binding IsCompleted, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
Command="{Binding DataContext.IsCompletedCommand,RelativeSource={RelativeSource Mode=Self}}"
CommandParameter="{Binding SelectedItem, ElementName=PhasesGrid}" />
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
I'm trying to bind the Command to a command called IsCompletedCommand on the VM, but I can't get the syntax right.
The Output window shows:
BindingExpression path error: 'IsCompletedCommand' property not found on 'object' ''JobPhaseHeaderEntity' (HashCode=39389875)'. BindingExpression:Path=DataContext.IsCompletedCommand; DataItem='CheckBox' (Name=''); target element is 'CheckBox' (Name=''); target property is 'Command' (type 'ICommand')
The grid is bound to a list of "JobPhaseHeaderEntity". So I know that my Command binding is wrong, I just know the right syntax. Can someone help?
Thanks
[UPDATE]
I figured it out....
<DataGridTemplateColumn Header="Complete"
Width="200">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<CheckBox IsChecked="{Binding IsCompleted, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
Command="{Binding DataContext.IsCompletedCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}}"
CommandParameter="{Binding SelectedItem, ElementName=PhasesGrid}" />
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
If it's not broken, fix it until it is
modified 17-Mar-14 14:36pm.
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I like that to occur when any text box is entered, and so I create a method in my App class that handles that :
private static void SelectAllText(object sender, RoutedEventArgs e)
{
var textBox = e.OriginalSource as TextBox;
if (textBox != null)
textBox.SelectAll();
}
and then I register a handler for the textbox GotKeyboardFocusEvent in my OnStartUP method
EventManager.RegisterClassHandler(typeof(TextBox), UIElement.GotKeyboardFocusEvent, new RoutedEventHandler(SelectAllText), true);
That way all textboxes select their text whenever they get focus.
Hope this helps
Everyone dies - but not everyone lives
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Hi can you provide any source to implement row double click for datagrid using attached property.
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Please don't repost questions. You asked this yesterday, and it's considered rude to repost so quickly.
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FYI, there are lots of differences b/w yesterday questions and today questions.
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There really aren't. You're still attempting the same thing only this time your question showed nothing of what you've done and just asked for someone to give you code. This is code you could easily have found using Google as well.
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Hi ,
I have a situation here to plot some data. For example there is an event occurs everyday at a particular time. I need to highlight that event in a Date Vs Time graph. There is no need to show a graph with lines. Just needed to highlight the events,thats it. On clicking the event it should go to another window and load its data. Event should also have a tooltip. Is there any controls available for this in WPF ? Please help.
With Regards
Subin.
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Please help me to create the Row Double Click event for datagrid using MVVM, currently i am using MouseDoubleClick event, using MouseDoubleClick event when we click anywhere on datagrid then that event is firing. Please help me to produce the event only when double click on rows.
Code that currently i am using i.e. MouseDoubleClick event:
<i:Interaction.Triggers>
<i:EventTrigger EventName="MouseDoubleClick">
<i:InvokeCommandAction Command="{Binding RowClick}" CommandParameter="{Binding ElementName=grdManageCab, Path=SelectedItem}">
</i:InvokeCommandAction>
</i:EventTrigger>
</i:Interaction.Triggers>
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I'm creating a search control that has a label, a combobox, and a button. The button will do a requery for the combobox's list items.
I created DP's for the ComboBox's ItemSource and SelectedItem properties.
The control will be used like:
<my:searchControl Grid.Row="0"
ComboItemSource="{Binding Items}"
ComboSelectedItem="{Binding Selected}"
CaptionText="Look For"\>
Everything is working fine so far.
What do I do about the button's click event? I would want to handle the requery buttons's click in the ViewModel the control is used in:
<my:searchControl Grid.Row="0"
ComboItemSource="{Binding Items}"
ComboSelectedItem="{Binding Selected}"
CaptionText="Look For"\>
<my:searchControl>
<i:Interaction.Triggers>
<i:EventTrigger EventName="ButtonClicked"/>
</i:Interaction.Triggers>
</my:searchControl>
Is this the right approach?
Thanks
If it's not broken, fix it until it is
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Hi,
In wpf, MVVM Pattern i face the following issue. Did anyone notice this any time?
In page-1(XAML) there are 3 radio button of same group.
and in the corresponding View Model(Page-1 VM) in One method(eg: CreateXYZView()) in which i am instantiating another view(Page -2).
And in the page-2, i have the same set of radio buttons.
Now i have selected one radio button in page-1. And done some action which triggers the method(CreateXYZView()) in the Page -1 VM, which internally creates page-2.
So now my radio button selection in the page-1 is CLEARED(vanished).
Can anyone let me know the reason?
Thanks in Advance.
Pradeep Chenna.
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