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POHow to use two user controls as Master –Details
 

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  1. POHow to use two user controls as Master –Details
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    <p>I have two User Controls already created now I want to use one as Master User Control and another as Details User control as follows:</p> <pre><code>1 Parent Control 1.1 - User Control 1 as Master Control 1.2 - User Control 2 as Details Control </code></pre> <p>The Master Control has the List box where I select the name of the Item and the Details Control Displays the all the available Items in stock. I have Added ItemId in the Parent Control and bound it to the Master Control and Details Control (both controls have ItemId as DP). When I select the Item from Master the details Grid is not refreshing.</p> <p>How can I make sure that when I select the Item from Master User Control; the Detail User Control should show me the details?</p> <p>The Parent Control</p> <pre><code> &lt;Grid&gt; &lt;StackPanel Orientation="Horizontal" Width="650" HorizontalAlignment="Left" Margin="10,10,0,0"&gt; &lt;UC:ItemDetailUC ItemId="{Binding ElementName=MainWindowName,Path=ItemId,Mode=TwoWay}" /&gt; &lt;UC:StockItemDetailsUC ItemId="{Binding ElementName=MainWindowName,Path=ItemId,Mode=TwoWay}"/&gt; &lt;/StackPanel&gt; &lt;/Grid&gt; </code></pre> <p>.</p> <pre><code>public partial class MainWindow : Window, INotifyPropertyChanged { private int _ItemId; public int ItemId { get { return _ItemId; } set { if (_ItemId == value) return; _ItemId = value; OnPropertyChanged("ItemId"); } } public MainWindow() { InitializeComponent(); this.DataContext = this; } public event PropertyChangedEventHandler PropertyChanged; protected void OnPropertyChanged(string propertyName) { PropertyChangedEventHandler handler = PropertyChanged; if (handler != null) { handler(this, new PropertyChangedEventArgs(propertyName)); } } } </code></pre> <p>1.1 - User Control 1 as Master Control - ItemDetailUC.XAML</p> <pre><code> &lt;UserControl x:Class="LearnWPF.ItemDetailUC" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" mc:Ignorable="d" Name="ItemDetailUCName" d:DesignHeight="100" d:DesignWidth="350"&gt; &lt;Grid Background="Aqua"&gt; &lt;StackPanel Orientation="Vertical" Margin="10,10,0,0" &gt; &lt;Label Content="Master Control:" Width="350" HorizontalContentAlignment="Center"/&gt; &lt;StackPanel Orientation="Horizontal" Width="200" HorizontalAlignment="Left" Margin="10,10,0,0"&gt; &lt;Label Content="Item :" Width="80"/&gt; &lt;ComboBox Name="ItemListComboBox" Width="100" DisplayMemberPath="ItemName" SelectedValuePath="ItemId" SelectedValue="{Binding ElementName=ItemDetailUCName, Path=ItemId}" /&gt; &lt;/StackPanel&gt; &lt;StackPanel Orientation="Horizontal" Margin="10,10,0,0"&gt; &lt;Label Content="Available Qty :" Width="80"/&gt; &lt;TextBox Width="100" Text="{Binding ElementName=ItemListComboBox, Path=SelectedItem.AvailableQty}" /&gt; &lt;Label Content="MaxQty :" Width="60"/&gt; &lt;TextBox Width="80" Text="{Binding ElementName=ItemListComboBox, Path=SelectedItem.MaxQty}" /&gt; &lt;/StackPanel&gt; &lt;/StackPanel&gt; &lt;/Grid&gt; &lt;/UserControl&gt; </code></pre> <p>.</p> <pre><code> public static readonly DependencyProperty ItemIdProperty = DependencyProperty.Register("ItemId", typeof(int), typeof(ItemDetailUC)); public int ItemId { get { return (int)GetValue(ItemIdProperty); } set { SetValue(ItemIdProperty, value); } } public ItemDetailUC() { InitializeComponent(); ItemListComboBox.ItemsSource = Data.GetItemList(); this.DataContext = this; } </code></pre> <p>1.2 - User Control 2 as Details Control</p> <pre><code>&lt;UserControl x:Class="LearnWPF.StockItemDetailsUC" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" mc:Ignorable="d" d:DesignHeight="200" d:DesignWidth="300"&gt; &lt;Grid&gt; &lt;StackPanel Orientation="Vertical" Background="Aquamarine"&gt; &lt;Label Content="Details Control:" Width="300" HorizontalContentAlignment="Center"/&gt; &lt;DataGrid Name="StockItemDetailsDataGrid" Background="Aquamarine" AutoGenerateColumns="False"&gt; &lt;DataGrid.Columns&gt; &lt;DataGridTextColumn Header="Location Name" Binding="{Binding LocationName}"/&gt; &lt;DataGridTextColumn Header="RowNo" Binding="{Binding RowNo}" /&gt; &lt;DataGridTextColumn Header="ColumnNo" Binding="{Binding ColumnNo}" /&gt; &lt;DataGridTextColumn Header="Qty" Binding="{Binding Qty}" /&gt; &lt;/DataGrid.Columns&gt; &lt;/DataGrid&gt; &lt;/StackPanel&gt; &lt;/Grid&gt; &lt;/UserControl&gt; </code></pre> <p>.</p> <pre><code> public static readonly DependencyProperty ItemIdProperty = DependencyProperty.Register("ItemId", typeof(int), typeof(StockItemDetailsUC)); public int ItemId { get { return (int)GetValue(ItemIdProperty); } set { SetValue(ItemIdProperty, value); } } public StockItemDetailsUC() { InitializeComponent(); Loaded += new RoutedEventHandler(StockItemDetailsUC_Loaded); } void StockItemDetailsUC_Loaded(object sender, RoutedEventArgs e) { if (ItemId != 0) { StockItemDetailsDataGrid.ItemsSource = Data.GetItemLocaitonDetails(ItemId); } this.DataContext = this; } . public class ItemDetailsVO: INotifyPropertyChanged { private int _ItemId; public int ItemId { get { return _ItemId; } set { if (_ItemId == value) return; _ItemId = value; OnPropertyChanged("ItemId"); } } private String _ItemName; private int _AvailableQty; private int _MaxQty; } public class StockItemDetails : INotifyPropertyChanged { private int _ItemId; public int ItemId { get { return _ItemId; } set { if (_ItemId == value) return; _ItemId = value; OnPropertyChanged("ItemId"); } } private String _LocationName; private int _Qty; private int _RowNo; private int _ColumnNo; /..... all properties are implemented } </code></pre>
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