Sample Callisto Settings Flyout in VB - windows-8

Does anyone have a sample for adding a Callisto settingsflyout in VB? There are several samples in CS but I can't seem to make sense of them in a VB mode. I want to add one toggle switch and save it for my app to reference. I am using VB and XAML.

This is what I use in my App.XAML.VB:
Private Sub addSettingsScenarioAdd()
AddHandler SettingsPane.GetForCurrentView.CommandsRequested, AddressOf onCommandsRequested
End Sub
Private Sub onSettingsCommand(command As IUICommand)
Dim settingsCommand As SettingsCommand = DirectCast(command, SettingsCommand)
Dim rootFrame As Frame = Window.Current.Content
rootFrame.Navigate(GetType(Page1))
End Sub
Private Sub onCommandsRequested(sender As SettingsPane, args As SettingsPaneCommandsRequestedEventArgs)
Dim handler1 As New UICommandInvokedHandler(AddressOf onSettingsCommand)
Dim about = New SettingsCommand("about", "About", Sub(handler)
Dim aboutpane = New SettingsFlyout()
aboutpane.Content = New AboutPanel()
aboutpane.IsOpen = True
aboutpane.HeaderText = "About"
aboutpane.Background = New SolidColorBrush(Colors.White)
UserSettings.Values("isAboutOpen") = "yes"
End Sub)
args.Request.ApplicationCommands.Add(about)
End Sub
And then use the SettingsFlyout controls to collect and store settings (e.g. you could store in isolated storage or setup properties in your App.XAML.VB that can be changed from your flyout controls.
That should get you started (you obviously also need to create the controls for the flyouts, which just need to be usercontrols that are the right size/shape on the page. Here is an example of my 'aboutpanel' control:
<UserControl
x:Class="ThisApp.AboutPanel"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:FootballHub"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
d:DesignHeight="480" Width="260" ManipulationMode="None">
<StackPanel >
<Grid Background="White" Margin="0,0,0,0" ManipulationMode="None">
<Grid.RowDefinitions>
<RowDefinition Height="50"/>
<RowDefinition Height="50"/>
<RowDefinition Height="50"/>
<RowDefinition Height="50"/>
<RowDefinition Height="50"/>
<RowDefinition Height="250"/>
</Grid.RowDefinitions>
<TextBlock x:Name="VersionAndPublisherText" HorizontalAlignment="Left" Margin="10,0,0,0" Foreground="{StaticResource MainColour}" TextWrapping="Wrap" VerticalAlignment="Top" Height="40" Width="240" FontSize="12" Grid.Row="1" Text="Textblock" />
<TextBlock x:Name="SupportHeadingText" Grid.Row="2" FontFamily="Global User Interface" FontSize="14" FontWeight="Bold" Foreground="Black" Margin="10,0" Text="Textblock" VerticalAlignment="Bottom" />
<TextBlock x:Name="SupportText" Grid.Row="3" FontFamily="Global User Interface" FontSize="12" Foreground="#FF045DF6" HorizontalAlignment="Right" Width="240" Margin="0,0,10,0" Height="50" VerticalAlignment="Top" Text="Textblock" TextWrapping="Wrap" FontStyle="Italic" />
<TextBlock x:Name="MainHeadingText" HorizontalAlignment="Left" Margin="10,0,0,0" TextWrapping="Wrap" Text="TextBlock" VerticalAlignment="Bottom" Width="240" FontWeight="Bold" FontFamily="Global User Interface" Foreground="Black" FontSize="14"/>
<TextBlock x:Name="PrivacyHeadingText" Grid.Row="4" FontFamily="Global User Interface" FontSize="14" FontWeight="Bold" Foreground="Black" Margin="10,0" Text="Textblock" VerticalAlignment="Bottom" />
<TextBlock x:Name="PrivacyText" Grid.Row="5" FontFamily="Global User Interface" FontSize="12" Foreground="{StaticResource MainColour}" HorizontalAlignment="Right" Width="240" Margin="0,0,10,0" Height="211" VerticalAlignment="Top" Text="Textblock" TextWrapping="Wrap" />
</Grid>
</StackPanel>
Add your buttons and options, etc. to that.
I also use handlers to detect when my panels are opening/closing so I can apply settings, etc.:
AddHandler Me.Unloaded, AddressOf closing_AboutPanel
AddHandler Me.Loaded, AddressOf opening_AboutPanel
That should cover most of it. When adding code to your panels you can just treat them like any other page or control in terms of getting input and storing settings.

Related

Listiview Item not highlighting when hovering over - UWP (Windows 10)

I have a UserControl used as an item template in a ListView and when I hover a specific item it doesn't highlight it yet I have other ListViews in my project where the specific item is highlighted over.
I've removed the code from my UserControl and copy/pasted it directly in my DataTemplate to check if it was related to the fact that I was using a UserControl but no difference.
This ListView is contained in a SemanticZoom, so again I removed the SemanticZoom to check if the behaviour would change, but to no avail! Still doesn't get highlighted.
All my ListViews have their SelectionMode set to Single and I've got a style defined at the app level which is applied to all my ListViews
This is the code in my UserControl:
<UserControl
x:Class="MyApp.UserControls.ZoomedIn"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:MyApp.UserControls"
xmlns:converters="using:MyApp.Converters"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
d:DesignHeight="300"
d:DesignWidth="470">
<UserControl.Resources>
<converters:WrapOnConverter x:Key="WrapOnConverter"/>
</UserControl.Resources>
<Grid x:Name="Details"
Background="White"
Grid.Column="0"
Grid.Row="0"
Margin="12,5,12,5">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Image x:Name="Image"
Source="{Binding Image}"
Width="100"
Height="100"
Stretch="UniformToFill"
Grid.Row="0"
Grid.Column="0"
Grid.RowSpan="2"
HorizontalAlignment="Left"
VerticalAlignment="Top" />
<Image x:Name="Image2"
Source="{Binding Image2}"
Width="30"
Height="30"
Margin="67,67,0,0"
Stretch="UniformToFill"
Grid.Row="0"
Grid.Column="0"
Grid.RowSpan="2"
HorizontalAlignment="Left"
VerticalAlignment="Top" />
<Image x:Name="Image3"
Source="{Binding Image3}"
Width="30"
Height="30"
Margin="32,67,0,0"
Stretch="UniformToFill"
Grid.Row="0"
Grid.Column="0"
Grid.RowSpan="2"
HorizontalAlignment="Left"
VerticalAlignment="Top" />
<StackPanel Margin="5,0,5,0"
Grid.Row="0"
Grid.Column="1"
VerticalAlignment="Top">
<TextBlock x:Name="Title"
Text="{Binding Title}"
Foreground="{ThemeResource
SystemControlForegroundAccentBrush}"
FontWeight="SemiBold"
VerticalAlignment="Top"
TextWrapping="{Binding
Converter={StaticResource WrapOnConverter}}" />
<TextBlock x:Name="Time"
Text="{Binding Time}"
Foreground="DarkCyan"
VerticalAlignment="Top"
HorizontalAlignment="Left"
Margin="0,5,0,5" />
<TextBlock x:Name="Description"
Text="{Binding Description}"
Foreground="Black"
TextWrapping="Wrap"
VerticalAlignment="Top"
HorizontalAlignment="Left"
MaxLines="2"/>
</StackPanel>
</Grid>
</UserControl>
And my ListView is defined as follows:
<ListView ItemsSource="{Binding Source={StaticResource cvsDetails}}"
SelectionMode="Single"
SelectedIndex="{Binding SelectedDetailIndex}"
SelectedItem="{Binding SelectedDetail, Mode=TwoWay}"
ItemContainerStyle="{StaticResource ListViewItemStyle}">
<ListView.ItemTemplate>
<DataTemplate>
<usercontrols:ZoomedIn DataContext="{Binding}" />
</DataTemplate>
</ListView.ItemTemplate>
<ListView.GroupStyle>
<GroupStyle>
<GroupStyle.HeaderTemplate>
<DataTemplate>
<TextBlock FontSize="20"
Text="{Binding CategoryName}"
Foreground="{ThemeResource
SystemControlForegroundAccentBrush}"
FontWeight="SemiBold" />
</DataTemplate>
</GroupStyle.HeaderTemplate>
</GroupStyle>
</ListView.GroupStyle>
<Interactivity:Interaction.Behaviors>
<Core:EventTriggerBehavior EventName="Tapped">
<Core:InvokeCommandAction
Command="{Binding ItemClickCommand}"
CommandParameter="{Binding SelectedDetail}" />
</Core:EventTriggerBehavior>
</Interactivity:Interaction.Behaviors>
</ListView>
Does anyone have any ideas why one ListView would be behaving differently to the others?
Thanks.
The item is not highlighted because you have the Background="White" set, and this color will always be above the highlight color. The UserControl background needs to be set to Transparent.
To make it work the way you want, you need to change the ItemContainerStyle of your ListView. If you have different elements in your ListView you can use ItemContainerStyleSelector.
You can read more about ListViewItem here.
You need the change the Background property of list view items, for example:
<ListView>
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="Background" Value="White"/>
</Style>
</ListView.ItemContainerStyle>
</ListView>

GridView in WIndowsPhone

Hi Everyone, I want to create an GridView like this in windows phone 8.1
1.GridView is not supporting AutoGenerateColumns
This is the outpuit i got. Here i tried to obtain the data from Sqlite and binded to the ItemsSource property of gridview in gridview load event of the cs file.
My code:
<Grid Grid.Row="1" x:Name="ContentRoot" Margin="19,9.5,19,0">
<GridView x:Name="grdUser" HorizontalAlignment="Left" Height="auto" VerticalAlignment="Top" Width="auto" Loaded="grdUser_Loaded">
<GridView.HeaderTemplate><DataTemplate>
<Border Margin="5" BorderBrush="White" BorderThickness="1"><Grid ><Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/><ColumnDefinition Width="Auto"/><ColumnDefinition Width="Auto"/></Grid.ColumnDefinitions>
<TextBlock Text="UserName" />
<TextBlock Text="UserPassword" Grid.Column="1"/>
<TextBlock Text="CreatedDate" Grid.Column="2"/>
</Grid></Border> </DataTemplate></GridView.HeaderTemplate><GridView.ItemTemplate>
<DataTemplate>
<Border Margin="5" BorderBrush="White" BorderThickness="1"><Grid><Grid.ColumnDefinitions><ColumnDefinition Width="Auto"/><ColumnDefinition Width="Auto"/><ColumnDefinition Width="Auto"/></Grid.ColumnDefinitions>
<TextBlock x:Name="tbUserName" Text="{Binding UserName}"/>
<TextBlock x:Name="tbUserPassword" Text="{Binding UserPassword}" Grid.Column="1"/>
<TextBlock x:Name="tbCreatedDate" Text="{Binding CreationDate}" Grid.Column="2"/>
</Grid></Border></DataTemplate></GridView.ItemTemplate></GridView> </Grid>
Is there any other controls for kind of requirements.
Take a look at the MyToolkit library, it has a datagrid control that could be ok for you.
https://github.com/MyToolkit/MyToolkit/wiki/DataGrid

Scrollbars on syncfusion pdfviewer not working. winrt

I have this following code on windows store app project.
<Grid x:Name="minutesGrid" Height="1000" Width="1024" Background="White" >
<Grid.RowDefinitions>
<RowDefinition Height="20"/>
<RowDefinition Height="50"/>
<RowDefinition Height="100"/>
<RowDefinition Height="750"/>
<RowDefinition Height="30"/>
</Grid.RowDefinitions>
<StackPanel Grid.Row="1" Background="White" Height="50" Orientation="Vertical" >
<TextBlock x:Name="minutesTitle" Text="" FontFamily="Segoe UI Semilight" FontWeight="SemiLight" FontSize="24" TextAlignment="Center" Foreground="{StaticResource BrandBrush}" Margin="0,15,0,0"></TextBlock>
</StackPanel>
<StackPanel Grid.Row="2" Background="White">
<ScrollViewer HorizontalScrollBarVisibility="Disabled" HorizontalScrollMode="Disabled" VerticalScrollMode="Enabled" VerticalScrollBarVisibility="Visible" Height="100">
<TextBlock x:Name="minutesDesc" Text="" FontFamily="Segoe UI Semilight" FontWeight="SemiLight" FontSize="24" Foreground="{StaticResource BrandBrush}" Margin="15,15,0,0" TextWrapping="WrapWholeWords"></TextBlock>
</ScrollViewer>
</StackPanel>
<StackPanel Grid.Row="3" Background="White">
<PdfViewer:SfPdfViewerControl x:Name="minutesPDF" Canvas.ZIndex="1"/>
</StackPanel>
</Grid>
And when i load the pdf it doesnt show the scrollbars or lets me do a scroll either with mousewheel or on tablet with fingers.
This is how i load my file, that is displayed correctly.
var datapdf = await objService.DownloadFileService("teste.pdf",minutes.gappFile._id);
PdfLoadedDocument pdf = new PdfLoadedDocument(Convert.FromBase64String(datapdf));
await minutesPDF.LoadDocumentAsync(pdf);
minutesPDF.ViewMode = Syncfusion.Windows.PdfViewer.PageViewMode.Normal;
Do i need to add something else?
I think that you've to remove the StackPanel and assign the Grid.Row to the PDFViewer ..
SF Ref :
http://help.syncfusion.com/winrt/pdfviewer/getting-started
Since StackPanel has a default behavior to grow in one direction, scroll of the control included in the StackPanel will not be initiated without the height property being set to it.
Please find the following link which illustrates the reason “Why the control cannot be scrolled inside StackPanel without setting its height property?”
How can I get ScrollViewer to work inside a StackPanel?
Code Snippet: XAML
<Grid x:Name="minutesGrid" Height="1000" Width="1024" Background="White">
<Grid.RowDefinitions>
<RowDefinition Height="20"/>
<RowDefinition Height="50"/>
<RowDefinition Height="100"/>
<RowDefinition Height="750"/>
<RowDefinition Height="30"/>
</Grid.RowDefinitions>
<StackPanel Grid.Row="1" Background="White" Height="50" Orientation="Vertical" >
<TextBlock x:Name="minutesTitle" Text="" FontFamily="Segoe UI Semilight" FontWeight="SemiLight" FontSize="24" TextAlignment="Center" Foreground="{StaticResource BrandBrush}" Margin="0,15,0,0"></TextBlock>
</StackPanel>
<StackPanel Grid.Row="2" Background="White">
<ScrollViewer HorizontalScrollBarVisibility="Disabled" HorizontalScrollMode="Disabled" VerticalScrollMode="Enabled" VerticalScrollBarVisibility="Visible" Height="100">
<TextBlock x:Name="minutesDesc" Text="" FontFamily="Segoe UI Semilight" FontWeight="SemiLight" FontSize="24" Foreground="{StaticResource BrandBrush}" TextWrapping="WrapWholeWords"/>
</ScrollViewer>
</StackPanel>
<StackPanel Grid.Row="3" Background="White">
<PdfViewer:SfPdfViewerControl x:Name="minutesPDF" Height="750" Canvas.ZIndex="1"></PdfViewer:SfPdfViewerControl>
</StackPanel>
</Grid>

Windows 10 xaml Controls Centre Screen

I'm working on an app for windows 10. I've previously worked on a handful of Windows 7 applications and I'm trying to get use to the many differences now. I'm trying my luck at a universal app, and I'm wanting to centre a handful of controls so that no matter the screen/windows size the login details are centred.
I've been searching for help with this for a while, but I've found a lot of this to be in its' infancy; in other words there's not a lot of places I'm finding relevant information, never mind helpful. I was hoping someone on here could point me in the right direction?
Here's the window on the desktop view:
Here's what I'm meaning, the textboxes, labels ect don't move with the resize of the window, let alone different screen sizes.
</Page.Resources>
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}" FlyoutBase.AttachedFlyout="{StaticResource FlyoutBase1}">
<CheckBox x:Name="chckRemember" Content="Remember" HorizontalAlignment="Left" Margin="1038,441,0,0" VerticalAlignment="Top" ClickMode="Press"/>
<TextBox x:Name="txtUserName" HorizontalAlignment="Left" Margin="818,441,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="202"/>
<PasswordBox x:Name="txtPassword" HorizontalAlignment="Left" Margin="818,478,0,0" VerticalAlignment="Top" Width="202"/>
<TextBlock x:Name="textBlock" HorizontalAlignment="Left" Margin="723,446,0,0" TextWrapping="Wrap" Text="User Name:" VerticalAlignment="Top"/>
<TextBlock x:Name="textBlock_Copy" HorizontalAlignment="Left" Margin="735,478,0,0" TextWrapping="Wrap" Text="Password:" VerticalAlignment="Top"/>
<Button x:Name="btnSignin" Content="Login" HorizontalAlignment="Left" Margin="959,539,0,0" VerticalAlignment="Top" Width="61"/>
<Button x:Name="btnCreatAccount" Content="Create Account" HorizontalAlignment="Left" Margin="818,539,0,0" VerticalAlignment="Top" Width="116"/>
<ProgressRing x:Name="progressring1" HorizontalAlignment="Left" Margin="873,592,0,0" VerticalAlignment="Top" Height="87" Width="103"/>
<TextBlock x:Name="txtStatus" HorizontalAlignment="Left" Margin="818,510,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" FontSize="9.333"/>
<Grid HorizontalAlignment="Left" Height="180" Margin="692,412,0,0" VerticalAlignment="Top" Width="496"/>
</Grid>
Don't use Margins for positioning. Use margins only to enforce margins around the object.
To center an element in its parent set its HorizontalAlignment or VerticalAlignment to Center.
For more control, use layout controls such as Grid, StackPanel, and RelativePanel to position the controls where you want. For your layout you could set up 3 Rows and 3 Columns in your Grid to place the controls overall and then set the HorizontalAlignment to place the controls in the grid. Here's a quick update to your Xaml that will keep things centered so long as the window is wide enough for everything to fit (you can use adaptive techniques to reflow things for narrower views)
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}" >
<Grid.RowDefinitions>
<RowDefinition Height="*"></RowDefinition>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"></RowDefinition>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="240"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<CheckBox Grid.Column="2" Grid.Row="1" Margin="10,0" x:Name="chckRemember" Content="Remember" HorizontalAlignment="Left" VerticalAlignment="Top" ClickMode="Press"/>
<TextBox Grid.Column="1" Grid.Row="1" x:Name="txtUserName" HorizontalAlignment="Stretch" TextWrapping="Wrap" Text="" VerticalAlignment="Top" />
<PasswordBox Grid.Column="1" Grid.Row="2" x:Name="txtPassword" HorizontalAlignment="Stretch" VerticalAlignment="Top" />
<TextBlock x:Name="textBlock" Margin="10,0" Grid.Row="1" Grid.Column="0" HorizontalAlignment="Right" TextWrapping="Wrap" Text="User Name:" VerticalAlignment="Center"/>
<TextBlock x:Name="textBlock_Copy" Margin="10,0" Grid.Row="2" Grid.Column="0" HorizontalAlignment="Right" TextWrapping="Wrap" Text="Password:" VerticalAlignment="Center"/>
<Button Grid.Column="1" Grid.Row="3" x:Name="btnSignin" Content="Login" HorizontalAlignment="Left" VerticalAlignment="Top"/>
<Button Grid.Column="1" Grid.Row="3" x:Name="btnCreatAccount" Content="Create Account" HorizontalAlignment="Right" VerticalAlignment="Top" />
<ProgressRing x:Name="progressring1" HorizontalAlignment="Left" VerticalAlignment="Top" Height="87" Width="103"/>
<TextBlock x:Name="txtStatus" HorizontalAlignment="Left" TextWrapping="Wrap" Text="" VerticalAlignment="Top" FontSize="9.333"/>
<Grid HorizontalAlignment="Left" Height="180" VerticalAlignment="Top" Width="496"/>
</Grid>
See Quickstart: Defining layouts and Adding layout controls on MSDN.
The above is a the right approach. Using a Grid Layout with auto as the row height or column width is a good approach because they automatically will scale with you. Depending on the difficulty of your project you can also use Adaptive Triggers. Here is a really intro example to using Adaptive Triggers, http://jamesqquick.com/windows-10-adaptive-triggers-intro/ . This way you can, for instance, make text bigger depending on the screen size.
You're doing good by testing all of the different sizes. This is important! I usually just run as a Windows 10 app and resize it in all directions!

Silverlight- DataGrid control - Selection Changed event interfering with sorting

I'm currently playing with the Silverlight(Beta 2) Datagrid control. Before I wired up the SelectionChanged event, the grid would sort perfectly by clicking on the header. Now, when the grid is clicked, it will fire the SelectionChanged event when I click the header to sort. Is there any way around this?
In a semi-related topic, I'd like to have the SelectionChanged event fire when I click on an already selected item (so that I can have a pop-up occur to allow the user to edit the selected value). Right now, you have to click on a different value and then back to the value you wanted in order for it to pop up. Is there another way?
Included is my code.
The Page:
<UserControl x:Class="WebServicesApp.Page"
xmlns="http://schemas.microsoft.com/client/2007"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:data="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data"
Width="1280" Height="1024" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d">
<Grid x:Name="LayoutRoot" Background="White">
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<StackPanel Grid.Row="0" x:Name="OurStack" Orientation="Vertical" Margin="5,5,5,5">
<ContentControl VerticalAlignment="Center" HorizontalAlignment="Center">
<StackPanel x:Name="SearchStackPanel" Orientation="Horizontal" Margin="5,5,5,5">
<TextBlock x:Name="SearchEmail" HorizontalAlignment="Stretch" VerticalAlignment="Center" Text="Email Address:" Margin="5,5,5,5" />
<TextBox x:Name="InputText" HorizontalAlignment="Stretch" VerticalAlignment="Center" Width="150" Height="Auto" Margin="5,5,5,5"/>
<Button x:Name="SearchButton" Content="Search" Click="CallServiceButton_Click" HorizontalAlignment="Center" VerticalAlignment="Center" Width="75" Height="Auto" Background="#FFAFAFAF" Margin="5,5,5,5"/>
</StackPanel>
</ContentControl>
<Grid x:Name="DisplayRoot" Background="White" ShowGridLines="True"
HorizontalAlignment="Center" VerticalAlignment="Center" MaxHeight="300" MinHeight="100" MaxWidth="800" MinWidth="200"
ScrollViewer.HorizontalScrollBarVisibility="Visible" ScrollViewer.VerticalScrollBarVisibility="Visible">
<data:DataGrid ItemsSource="{Binding ''}" CanUserReorderColumns="False" CanUserResizeColumns="False"
AutoGenerateColumns="False" AlternatingRowBackground="#FFAFAFAF" SelectionMode="Single"
HorizontalAlignment="Center" VerticalAlignment="Center" Margin="5,5,5,5" x:Name="IncidentGrid" SelectionChanged="IncidentGrid_SelectionChanged">
<data:DataGrid.Columns>
<data:DataGridTextColumn DisplayMemberBinding="{Binding Address}" Header="Email Address" IsReadOnly="True" /> <!--Width="150"-->
<data:DataGridTextColumn DisplayMemberBinding="{Binding whereClause}" Header="Where Clause" IsReadOnly="True" /> <!--Width="500"-->
<data:DataGridTextColumn DisplayMemberBinding="{Binding Enabled}" Header="Enabled" IsReadOnly="True" />
</data:DataGrid.Columns>
</data:DataGrid>
</Grid>
</StackPanel>
<Grid x:Name="EditPersonPopupGrid" Visibility="Collapsed">
<Rectangle HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Opacity="0.765" Fill="#FF8A8A8A" />
<Border CornerRadius="30" Background="#FF2D1DCC" Width="700" Height="400" HorizontalAlignment="Center" VerticalAlignment="Center" BorderThickness="1,1,1,1" BorderBrush="#FF000000">
<StackPanel x:Name="EditPersonStackPanel" Orientation="Vertical" Background="White" HorizontalAlignment="Center" VerticalAlignment="Center" Width="650" >
<ContentControl>
<StackPanel x:Name="EmailEditStackPanel" Orientation="Horizontal">
<TextBlock Text="Email Address:" Width="200" Margin="5,0,5,0" />
<TextBox x:Name="EmailPopupTextBox" Width="200" />
</StackPanel>
</ContentControl>
<ContentControl>
<StackPanel x:Name="AppliesToDropdownStackPanel" Orientation="Horizontal" Margin="2,2,2,0">
<TextBlock Text="Don't send when update was done by:" />
<StackPanel Orientation="Vertical" MaxHeight="275" MaxWidth="350" >
<TextBlock x:Name="SelectedItemTextBlock" TextAlignment="Right" Width="200" Margin="5,0,5,0" />
<Grid x:Name="UserDropDownGrid" MaxHeight="75" MaxWidth="200" Visibility="Collapsed" ScrollViewer.VerticalScrollBarVisibility="Visible" ScrollViewer.HorizontalScrollBarVisibility="Hidden" >
<Rectangle Fill="White" />
<Border Background="White">
<ListBox x:Name="UsersListBox" SelectionChanged="UsersListBox_SelectionChanged" ItemsSource="{Binding UserID}" />
</Border>
</Grid>
</StackPanel>
<Button x:Name="DropDownButton" Click="DropDownButton_Click" VerticalAlignment="Top" Width="25" Height="25">
<Path Height="10" Width="10" Fill="#FF000000" Stretch="Fill" Stroke="#FF000000" Data="M514.66669,354 L542.16669,354 L527.74988,368.41684 z" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="1,1,1,1"/>
</Button>
</StackPanel>
</ContentControl>
<TextBlock Text="Where Clause Condition:" />
<TextBox x:Name="WhereClauseTextBox" Height="200" Width="800" AcceptsReturn="True" TextWrapping="Wrap" />
<ContentControl>
<StackPanel Orientation="Vertical">
<StackPanel Orientation="Horizontal">
<Button x:Name="TestConditionButton" Content="Test Condition" Margin="5,5,5,5" Click="TestConditionButton_Click" />
<Button x:Name="Save" Content="Save" HorizontalAlignment="Right" Margin="5,5,5,5" Click="Save_Click" />
<Button x:Name="Cancel" Content="Cancel" HorizontalAlignment="Right" Margin="5,5,5,5" Click="Cancel_Click" />
</StackPanel>
<TextBlock x:Name="TestContitionResults" Visibility="Collapsed" />
</StackPanel>
</ContentControl>
</StackPanel>
</Border>
</Grid>
</Grid>
And the call that occurs when the grid's selection is changed:
Private Sub IncidentGrid_SelectionChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
If mFirstTime Then
mFirstTime = False
Else
Dim data As SimpleASMX.EMailMonitor = CType(IncidentGrid.SelectedItem, SimpleASMX.EMailMonitor)
Dim selectedGridItem As SimpleASMX.EMailMonitor = Nothing
If IncidentGrid.SelectedItem IsNot Nothing Then
selectedGridItem = CType(IncidentGrid.SelectedItem, SimpleASMX.EMailMonitor)
EmailPopupTextBox.Text = selectedGridItem.Address
SelectedItemTextBlock.Text = selectedGridItem.AppliesToUserID
WhereClauseTextBox.Text = selectedGridItem.whereClause
IncidentGrid.SelectedIndex = mEmailMonitorData.IndexOf(selectedGridItem)
End If
If IncidentGrid.SelectedIndex > -1 Then
EditPersonPopupGrid.Visibility = Windows.Visibility.Visible
Else
EditPersonPopupGrid.Visibility = Windows.Visibility.Collapsed
End If
End If
End Sub
Sorry if my code is atrocious, I'm still learning Silverlight.
That looks like a Silverlight bug to me. I've just tried it and what's happening on my end is that the SelectionChanged event fires twice when you click the column header and to make matters worse, the index of the selected item doesn't stay synched with the currently selected item.
I'd suggest you work your way around it by using the knowledge that the first time SelectionChanged fires, the value of the datagrid's SelectedItem property will be null
Here's some sample code that at least lives with the issue. Your SelectionChanged logic can go in the if clause.
public partial class Page : UserControl
{
private Person _currentSelectedPerson;
public Page()
{
InitializeComponent();
List<Person> persons = new List<Person>();
persons.Add(new Person() { Age = 5, Name = "Tom" });
persons.Add(new Person() { Age = 3, Name = "Lisa" });
persons.Add(new Person() { Age = 4, Name = "Sam" });
dg.ItemsSource = persons;
}
private void SelectionChanged(object sender, EventArgs e)
{
DataGrid grid = sender as DataGrid;
if (grid.SelectedItem != null)
{
_currentSelectedPerson = grid.SelectedItem as Person;
}
else
{
grid.SelectedItem = _currentSelectedPerson;
}
}
}
public class Person
{
public string Name { get; set; }
public int Age { get; set; }
}
Frozen Columns in Silverlight DataGrid..
http://dotnetdreamer.wordpress.com/2009/01/31/silverlight-2-datagrid-frozen-columns/
There's a bugfix for the first issue you mentioned (selection changed event getting fired on resort).
See the following URL for Microsoft's patch:
http://www.microsoft.com/downloads/details.aspx?familyid=084A1BB2-0078-4009-94EE-E659C6409DB0&displaylang=en
This worked, but now if I sort twice, on the first one it sorts, and then does the popup as the first selected item of the grid . If I close the popup grid, and then try to sort a second time, it stack overflows, and crashes firefox out.
I'm thinking I may need to rethink working in silverlight until the system gets a bit more stable.
Thanks for the answer Hovito!