Edit Username, New Chat Dialog

PolyChat/Views/EditUsernameDialog.xaml

@@ -0,0 +1,21 @@
+<ContentDialog x:Class="PolyChat.Views.EditUsernameDialog"
+               xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+               xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+               xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+               xmlns:local="using:PolyChat.Views"
+               xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+               x:Name="ContentDialog"
+               Title="Change Username"
+               PrimaryButtonText="Save"
+               SecondaryButtonText="Cancel"
+               mc:Ignorable="d">
+
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="auto"/>
+            <RowDefinition Height="16"/>
+        </Grid.RowDefinitions>
+        <TextBox x:Name="input" KeyUp="OnKeyUp" PlaceholderText="Marco Sattler"/>
+        <TextBlock Grid.Row="1" x:Name="textError" Text="Username cannot be empty" VerticalAlignment="Center" Foreground="{ThemeResource SystemErrorTextColor}"/>
+    </Grid>
+</ContentDialog>