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POWPF Scrollviewer starting position strange
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  1. POWPF Scrollviewer starting position strange
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    copied!<p>i've got a window with 2 tabs each tab contain a Scrollviewer with same exact properties</p> <pre><code>&lt;ScrollViewer VerticalScrollBarVisibility="Auto" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" CanContentScroll="False"&gt; &lt;Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch"&gt; &lt;Grid.RowDefinitions&gt; &lt;RowDefinition Height="Auto" /&gt; &lt;RowDefinition Height="*" /&gt; &lt;/Grid.RowDefinitions&gt; &lt;/Grid&gt; &lt;/ScrollViewer&gt; </code></pre> <p>the difference now :</p> <p>First Tab :</p> <p>the grid row 0 contain a <code>&lt;WrapPanel&gt;</code> with couple <code>&lt;StackPanel&gt;</code> inside where all controls are</p> <p>the grid row 1 contain a <code>&lt;DataGrid&gt;</code> that fill the rest and has a minimum height</p> <p>Second Tab :</p> <p>the grid row 0 contain a <code>WrapPanel</code> with couple <code>&lt;DockPanel&gt;</code> inside where all controls are</p> <p>the grid row 1 contain a <code>&lt;DataGrid&gt;</code> that fill the rest and has a minimum height</p> <p>The issue :</p> <p>when i open the window there is too much control to be viewed all at once so scroll bar or the <code>&lt;ScrollViewer&gt;</code> appear and this is perfect. BUT for some awkward reason the second tab the scroll bar is NOT at the top but like a bit more than 3/4 down the window. I wonder if anyone ha that issue before and might know what i forgot there ?</p> <p>what i've tried :</p> <ul> <li><p>named the <code>&lt;ScrollViewer&gt;</code> in question and call on the form load <code>MyScroll.ScrollToTop();</code> didn't work but i guess it's because the control doesn't exist yet.</p></li> <li><p>I tried adding the <code>GotFocus</code> event to the <code>&lt;TabItem&gt;</code> but this baby get triggered every time i also click a control within it. I actually found that funny when i first click a <code>&lt;ComboBox&gt;</code> towards the end of the window.</p></li> </ul> <p>After trying all that i found that starting on top when the <code>&lt;ScrollViewer&gt;</code> is fist viewed is what i want and wondering if there is a way to do this or if i am missing something.</p> <p>Secondly i actually would like the <code>&lt;ScrollViewer&gt;</code> to scroll back to top when the person navigate the <code>&lt;TabItem&gt;</code> my little go to top bug made me realize that i actually like that.</p> <p>User will rarely use more than 2 Tabs on that window so insanely perfomant solution not required</p> <p>Edit : I've found something. if i scroll back up my problematic tab and then witch o another tab and come back, the scroll return EXACTLY where it was bugged at. </p> <p>Note that i have no events anywhere just simple bindings on for selected value of combobox and text box. o yeah and datasource for the grid but empty for both tab at this time.</p> <p>I have 4 windows with the EXACT same formatting and only 1 tab out of 12 do that.</p> <p>Edit #2 : here the full xaml</p> <pre><code>&lt;syncfusion:ChromelessWindow x:Class="prjSelection.Crating.frmCratingWestManufacturers" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:prjSelection.Crating" Title="West Crating" Height="640" Width="1024" UseNativeChrome="True" xmlns:syncfusion="http://schemas.syncfusion.com/wpf" syncfusion:SkinStorage.VisualStyle="Metro" ShowActivated="True" WindowStartupLocation="CenterScreen"&gt; &lt;Grid&gt; &lt;Grid Name="grdOverlay" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Background="Transparent" Panel.ZIndex="99999999" Visibility="Hidden" MinWidth="150" MinHeight="200"&gt; &lt;Rectangle HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Fill="White" Opacity="0.8"&gt;&lt;/Rectangle&gt; &lt;StackPanel HorizontalAlignment="Center" VerticalAlignment="Center"&gt; &lt;Label HorizontalAlignment="Stretch" VerticalAlignment="Center" Content="Running Selection" FontSize="18" FontWeight="Bold"&gt;&lt;/Label&gt; &lt;syncfusion:SfBusyIndicator AnimationType="Gear" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" ViewboxHeight="150" ViewboxWidth="150" VerticalContentAlignment="Center" /&gt; &lt;/StackPanel&gt; &lt;/Grid&gt; &lt;syncfusion:TabControlExt BorderThickness="0,2,0,0" Name="tab1" AllowDrop="False" Background="White" EnableLabelEdit="False" AllowDragDrop="False" CloseButtonType="Hide" DefaultContextMenuItemVisibility="Hidden" SelectOnCreatingNewItem="False" ShowTabItemContextMenu="False" ShowTabListContextMenu="False" SnapsToDevicePixels="True" TabPanelBackground="White" UseLayoutRounding="False" TabScrollButtonVisibility="Auto" TabVisualStyle="None" TabStripPlacement="Top" TabItemSelectedForeground="White" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" HorizontalContentAlignment="Stretch"&gt; &lt;syncfusion:TabItemExt Header="File" Width="150" IconMargin="0" &gt; &lt;ScrollViewer VerticalScrollBarVisibility="Auto" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" CanContentScroll="False"&gt; &lt;Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch"&gt; &lt;Grid.RowDefinitions&gt; &lt;RowDefinition Height="Auto" /&gt; &lt;RowDefinition Height="*" /&gt; &lt;/Grid.RowDefinitions&gt; &lt;WrapPanel Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Top"&gt; &lt;StackPanel&gt; &lt;GroupBox Header="File Visual Properties" VerticalContentAlignment="Stretch" VerticalAlignment="Top" Name="grpFileVisualProperties"&gt; &lt;WrapPanel Orientation="Horizontal"&gt; &lt;DockPanel Height="25" LastChildFill="True" Width="220" Margin="2,2,0,0"&gt; &lt;Label Content="File Color" Height="25" Name="lblFileColor" /&gt; &lt;ComboBox DisplayMemberPath="Value" Height="25" ItemsSource="{Binding Path=File.Color}" Name="cboFileColor" SelectedItem="{Binding Path=File.SelectedColor, Mode=TwoWay}" Width="120" DockPanel.Dock="Right" /&gt; &lt;Label /&gt; &lt;/DockPanel&gt; &lt;/WrapPanel&gt; &lt;/GroupBox&gt; &lt;GroupBox Header="File Relative Properties" VerticalContentAlignment="Stretch" VerticalAlignment="Top" Name="grpFileRelativeProperties"&gt; &lt;WrapPanel Orientation="Horizontal"&gt; &lt;DockPanel Height="25" LastChildFill="True" Width="280" Margin="2,2,0,0"&gt; &lt;Label Content="File Type" Height="25" Name="lblFileType" /&gt; &lt;ComboBox DisplayMemberPath="Value" Height="25" ItemsSource="{Binding Path=File.FileType}" Name="cboFileType" SelectedItem="{Binding Path=File.SelectedFileType, Mode=TwoWay}" Width="120" DockPanel.Dock="Right" /&gt; &lt;Label /&gt; &lt;/DockPanel&gt; &lt;/WrapPanel&gt; &lt;/GroupBox&gt; &lt;/StackPanel&gt; &lt;/WrapPanel&gt; &lt;Grid Grid.Row="1" HorizontalAlignment="Stretch" Name="grid2" VerticalAlignment="Stretch"&gt; &lt;Grid.ColumnDefinitions&gt; &lt;ColumnDefinition Width="1*" /&gt; &lt;ColumnDefinition Width="10" /&gt; &lt;ColumnDefinition Width="Auto" /&gt; &lt;/Grid.ColumnDefinitions&gt; &lt;Button Content="Run Selection" FontSize="20" FontStretch="Normal" Height="46" Name="cmdFileSelection" Padding="0" Width="198.162" Canvas.Left="793.838" Canvas.Top="410" VerticalAlignment="Top" Grid.Column="2" /&gt; &lt;syncfusion:SfDataGrid AllowGrouping="False" AllowResizingColumns="False" AllowSorting="False" ColumnSizer="Auto" FontSize="13" GroupRowSelectionBrush="{x:Null}" ItemsSource="{Binding Path=File.ResultGrid}" Name="grdFileData" NavigationMode="Cell" ShowColumnWhenGrouped="False" VerticalContentAlignment="Stretch" Canvas.Left="898.447" Canvas.Top="462" HorizontalAlignment="Left" Grid.Column="0" MinHeight="120" MinWidth="120" /&gt; &lt;/Grid&gt; &lt;/Grid&gt; &lt;/ScrollViewer&gt; &lt;/syncfusion:TabItemExt&gt; &lt;syncfusion:TabItemExt Header="Box" Width="150" IconMargin="0"&gt; &lt;ScrollViewer VerticalScrollBarVisibility="Auto" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" CanContentScroll="False"&gt; &lt;Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch"&gt; &lt;Grid.RowDefinitions&gt; &lt;RowDefinition Height="Auto" /&gt; &lt;RowDefinition Height="*" /&gt; &lt;/Grid.RowDefinitions&gt; &lt;WrapPanel Grid.Row="0" HorizontalAlignment="Stretch" Orientation="Horizontal"&gt; &lt;DockPanel Height="25" Width="375" Margin="2,2,0,0"&gt; &lt;Label Content="Height" Name="lblHeight" Height="25" /&gt; &lt;ComboBox ItemsSource="{Binding Path=Box.Height}" SelectedItem="{Binding Path=Box.SelectedHeight, Mode=TwoWay}" DisplayMemberPath="Value" Name="cboHeight" Width="200" Height="25" DockPanel.Dock="Right" /&gt; &lt;Label /&gt; &lt;/DockPanel&gt; &lt;/WrapPanel&gt; &lt;Grid Grid.Row="1" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"&gt; &lt;Grid.ColumnDefinitions&gt; &lt;ColumnDefinition Width="1*" /&gt; &lt;ColumnDefinition Width="10" /&gt; &lt;ColumnDefinition Width="Auto" /&gt; &lt;/Grid.ColumnDefinitions&gt; &lt;Button Content="Run Selection" FontSize="20" FontStretch="Normal" Height="46" Name="cmdBoxSelection" Padding="0" Width="198.162" Canvas.Left="793.838" Canvas.Top="410" VerticalAlignment="Top" Grid.Column="2" /&gt; &lt;syncfusion:SfDataGrid AllowGrouping="False" AllowResizingColumns="False" AllowSorting="False" ColumnSizer="Auto" FontSize="13" GroupRowSelectionBrush="{x:Null}" ItemsSource="{Binding Path=Box.ResultGrid}" Name="grdBoxData" NavigationMode="Cell" ShowColumnWhenGrouped="False" VerticalContentAlignment="Stretch" Canvas.Left="898.447" Canvas.Top="462" HorizontalAlignment="Left" Grid.Column="0" MinHeight="120" MinWidth="120" /&gt; &lt;/Grid&gt; &lt;/Grid&gt; &lt;/ScrollViewer&gt; &lt;/syncfusion:TabItemExt&gt; &lt;/syncfusion:TabControlExt&gt; &lt;/Grid&gt; </code></pre> <p></p> <p><img src="https://i.stack.imgur.com/4x9J3.png" alt="enter image description here"></p>
 

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