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Question

I have a combo box and it must suppose to when page loads, display the list of fields from the table in the database. Currently its not displaying them from the combo box instead the fields are displayed from the grid.

I did try to change and bind the source of this combo box to new name to be unique, could be there is some property that prevents this from displaying the data on the combo box.

// xaml code

` <!---Stock code variable holder-->
    <UserControl.Resources>
        <CollectionViewSource x:Key="StockCodes" Source="{Binding StockCodes}"/>
        <CollectionViewSource x:Key="StockDescription" Source="{Binding Description}"/>
    </UserControl.Resources>
    
    <Grid Background="White" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Margin="0,86,-775.6,-46.6" Width="1766">
        <Label Content="Premix Material Management" BorderThickness="1.5" BorderBrush="#FF0B0B0B" Background="#FF383838" Foreground="White" FontSize="18" HorizontalContentAlignment="Center" VerticalAlignment="Top" Margin="10,10,0,0" FontWeight="SemiBold" />
         
        <!---Rectangle for Recipe Details-->
        <Rectangle  HorizontalAlignment="Left" Height="371" Stroke="#FFCFCFD1" VerticalAlignment="Top" Width="260" Margin="14,104,0,0"/>
        
        
        <!---Recipe fields-->
        <Label Content="Recipe Details" FontWeight="SemiBold"  HorizontalAlignment="Left" HorizontalContentAlignment="Center" VerticalAlignment="Top" Width="260" BorderBrush="#FFBEBEBE" Background="#FFE3E3E3" BorderThickness="1.5" Foreground="Black" Height="30" VerticalContentAlignment="Center" FontSize="12" Margin="14,103,0,0"/>
        <Label x:Name="lblActive_Copy9" FontWeight="SemiBold" FontSize="10" Visibility="Visible" Content="IDX:" HorizontalAlignment="Left" VerticalAlignment="Top" Width="124" HorizontalContentAlignment="Right" Background="#FFE3E3E3" Margin="17,135,0,0" BorderThickness="1" BorderBrush="#FFBEBEBE"/>
        <TextBox x:Name="txtIDX" Foreground="Black" HorizontalAlignment="Left" Visibility="Visible" FontSize="10" Height="26" Margin="146,132,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <Label x:Name="lblActive_Copy1" FontSize="10" FontWeight="SemiBold" Visibility="Visible" Content="Recipe:" HorizontalAlignment="Left" VerticalAlignment="Top" Width="124" HorizontalContentAlignment="Right" Background="#FFE3E3E3" Margin="17,163,0,0" BorderThickness="1" BorderBrush="#FFBEBEBE"/>
        <TextBox x:Name="txtRecipe" Foreground="Black" FontSize="10" HorizontalAlignment="Left" Visibility="Visible" Height="26" Margin="146,160,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <Label x:Name="lblActive_Copy13" FontSize="10" FontWeight="SemiBold" Visibility="Visible" Content="Rec No:" HorizontalAlignment="Left" VerticalAlignment="Top" Width="124" HorizontalContentAlignment="Right" Background="#FFE3E3E3" Margin="17,191,0,0" BorderThickness="1" BorderBrush="#FFBEBEBE"/>
        <TextBox x:Name="txtRecNo" FontSize="10" Foreground="Black" HorizontalAlignment="Left" Visibility="Visible" Height="26" Margin="146,188,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <Label x:Name="lblActive_Copy2" FontSize="10" FontWeight="SemiBold" Visibility="Visible" Content="Description:" HorizontalAlignment="Left" VerticalAlignment="Top" Width="124" HorizontalContentAlignment="Right" Background="#FFE3E3E3" Margin="17,220,0,0" BorderThickness="1" BorderBrush="#FFBEBEBE"/>
        <TextBox x:Name="txtDescription" FontSize="10" Foreground="Black" HorizontalAlignment="Left" Visibility="Visible" Height="26" Margin="146,217,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <Label x:Name="lblActive_Copy3" FontSize="10" FontWeight="SemiBold" Visibility="Visible" Content="Batch Size:" HorizontalAlignment="Left" VerticalAlignment="Top" Width="124" HorizontalContentAlignment="Right" Background="#FFE3E3E3" Margin="17,248,0,0" BorderThickness="1" BorderBrush="#FFBEBEBE"/>
        <TextBox x:Name="txtBatchSize" FontSize="10" Foreground="Black" HorizontalAlignment="Left" Visibility="Visible" Height="26" Margin="146,245,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <Label x:Name="lblActive_Copy4" FontSize="10" FontWeight="SemiBold" Visibility="Visible" Content="Palleting Instruction:" HorizontalAlignment="Left" VerticalAlignment="Top" Width="124" HorizontalContentAlignment="Right" Background="#FFE3E3E3" Margin="17,276,0,0" BorderThickness="1" BorderBrush="#FFBEBEBE"/>
        <TextBox x:Name="txtPalletInstruction" FontSize="10" Foreground="Black" HorizontalAlignment="Left" Visibility="Visible" Height="26" Margin="146,273,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <Label x:Name="lblActive_Copy5" FontSize="10" FontWeight="SemiBold" Visibility="Visible" Content="Feed First Recipe Name:" HorizontalAlignment="Left" VerticalAlignment="Top" Width="124" HorizontalContentAlignment="Right" Background="#FFE3E3E3" Margin="17,304,0,0" BorderThickness="1" BorderBrush="#FFBEBEBE"/>
        <TextBox x:Name="txtFeedFirstName" FontSize="10" Foreground="Black" HorizontalAlignment="Left" Visibility="Visible" Height="26" Margin="146,301,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <Label x:Name="lblActive_Copy11" FontSize="10" FontWeight="SemiBold" Visibility="Visible" Content="PPA TK601:" HorizontalAlignment="Left" VerticalAlignment="Top" Width="124" HorizontalContentAlignment="Right" Background="#FFE3E3E3" Margin="17,331,0,0" BorderThickness="1" BorderBrush="#FFBEBEBE"/>
        <TextBox x:Name="txtPPATK601" ToolTip="Can only be edit if second last digit in recipe is 2"  IsReadOnly="True" TextChanged="txtPPATK601_TextChanged" FontSize="10" Foreground="Black" HorizontalAlignment="Left" Visibility="Visible" Height="26" Margin="146,328,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <Label x:Name="lblActive_Copy12" FontSize="10" FontWeight="SemiBold" Visibility="Visible" Content="PPA TK602:" HorizontalAlignment="Left" VerticalAlignment="Top" Width="124" HorizontalContentAlignment="Right" Background="#FFE3E3E3" Margin="17,359,0,0" BorderThickness="1" BorderBrush="#FFBEBEBE"/>
        <TextBox x:Name="txtPPATK602" FontSize="10" Foreground="Black" HorizontalAlignment="Left" Visibility="Visible" Height="26" Margin="146,354,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <Label x:Name="lblActive_Copy10" FontSize="10" FontWeight="SemiBold" Visibility="Visible" Content="Active:" HorizontalAlignment="Left" VerticalAlignment="Top" Width="124" HorizontalContentAlignment="Right" Background="#FFE3E3E3" Margin="17,387,0,0" BorderThickness="1" BorderBrush="#FFBEBEBE"/>
        <CheckBox x:Name="chkActive" TabIndex="3" HorizontalAlignment="Left" Checked="chkActive_Checked" Unchecked="chkActive_Unchecked" Margin="146,392,0,0" VerticalAlignment="Top" RenderTransformOrigin="-0.043,-1.119"/>
        <Button x:Name="btnAdd_Copy" Content="Save" Click="btnAdd_Click"  Background="ForestGreen" BorderBrush="ForestGreen" FontWeight="SemiBold" Visibility="Visible" HorizontalAlignment="Left" Margin="176,415,0,0" VerticalAlignment="Top" Width="90" />


        
        <!---Ingredient Totals-->
        <Rectangle  HorizontalAlignment="Left" Height="371" Stroke="#FFCFCFD1" VerticalAlignment="Top" Width="270" Margin="290,103,0,0"/>
        <Label Content="Ingredient Totals" FontWeight="SemiBold" HorizontalAlignment="Left" HorizontalContentAlignment="Center" VerticalAlignment="Top" Width="270" BorderBrush="#FFBEBEBE" Background="#FFE3E3E3" BorderThickness="1.5" Foreground="Black" Height="29" VerticalContentAlignment="Center" FontSize="12" Margin="288,104,0,0"/>
        
        <!---Ingredient fields names-->
        <Label x:Name="lblActive_Copy" FontWeight="SemiBold" Visibility="Visible" Content="Micros:" HorizontalAlignment="Left" VerticalAlignment="Top" Width="124" HorizontalContentAlignment="Right" Background="#FFE3E3E3" Margin="296,135,0,0" BorderThickness="1" BorderBrush="#FFBEBEBE" Height="23" FontSize="10"/>
        <TextBox x:Name="txtMicroTotal" FontSize="10" Foreground="Black" HorizontalAlignment="Left" Visibility="Visible" Height="20" Margin="425,138,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <Label x:Name="lblActive_Copy7" FontSize="10" FontWeight="SemiBold" Visibility="Visible" Content="Macros:" HorizontalAlignment="Left" VerticalAlignment="Top" Width="125" HorizontalContentAlignment="Right" Background="#FFE3E3E3" Margin="296,163,0,0" BorderThickness="1" BorderBrush="#FFBEBEBE" Height="23"/>
        <TextBox x:Name="txtMacroTotal" Foreground="Black" FontSize="10" HorizontalAlignment="Left" Visibility="Visible" Height="23" Margin="426,163,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="122"/>
        <Label x:Name="lblActive_Copy8" FontSize="10" FontWeight="SemiBold" Visibility="Visible" Content="Total:" HorizontalAlignment="Left" VerticalAlignment="Top" Width="125" HorizontalContentAlignment="Right" Background="#FFE3E3E3" Margin="295,191,0,0" BorderThickness="1" BorderBrush="#FFBEBEBE" Height="23"/>
        <TextBox x:Name="txtTotal" Foreground="Black" FontSize="10" HorizontalAlignment="Left" Visibility="Visible" Height="23" Margin="426,191,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="122"/>


        <!---Recipe name and drop down box-->
        <Label x:Name="lblDriverName_Copy" FontWeight="SemiBold" Visibility="Visible" Content="Recipe Code:" HorizontalAlignment="Left" VerticalAlignment="Top" Width="179" HorizontalContentAlignment="Right" Background="#FFE3E3E3" Margin="17,65,0,0" BorderThickness="1" BorderBrush="#FFBEBEBE"/>
        <ComboBox x:Name="cbxRecipe" TabIndex="1" IsTextSearchEnabled="True"  ItemsSource="{Binding Recipe}" DisplayMemberPath="StockCodes"  IsEditable="True"    IsTextSearchCaseSensitive="False"  Foreground="Black" HorizontalAlignment="Left" Margin="207,63,0,0" VerticalAlignment="Top" Width="214" SelectionChanged="cbxRecipe_SelectionChanged">
            <ComboBox.ItemsPanel>
                <ItemsPanelTemplate>
                    <VirtualizingStackPanel />
                </ItemsPanelTemplate>
            </ComboBox.ItemsPanel>
        </ComboBox>
`

// xaml code.cs

` private void UserControl_Loaded(object sender, RoutedEventArgs e)
        {
            LoadControl();

        }
        public void LoadControl()
        {
            Managers.BatchMaterialManager.SetDefaultConnection();
            presenter.PopulateComboBox();
            Properties.Settings.Default.Process = "Recipes";
            string[] arrayOil = RecipeName.Split('/');
            string OilIndicator = arrayOil[arrayOil.Length - 2].ToString();
            string LastDigit = RecipeName[RecipeName.Length - 2].ToString();
            if (OilIndicator == "2") // Has both oils in - allow split
            {
                txtPPATK601.IsReadOnly = false;
            }
        }
        private void cbxRecipe_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            LoadRecipe();
        }

        public void LoadRecipe()
        {
            TotalCrudeOilPerc = 0;
            CrudeOilPerc = 0;

            CollectionViewSource _StockCodeList = new CollectionViewSource();
            _StockCodeList = (CollectionViewSource)this.FindResource("StockCodes");

            CollectionViewSource _StockDescList = new CollectionViewSource();
            _StockDescList = (CollectionViewSource)this.FindResource("StockDescription");

            Managers.BatchMaterialManager.SetAdriotConnection();
            presenter.loadIngredients(Convert.ToInt32(cbxRecipe.SelectedValue), _StockCodeList, _StockDescList);
            presenter.PopulateTotals();
            presenter.loadRecipe(Convert.ToInt32(cbxRecipe.SelectedValue));

            string LastDigit = RecipeName.Substring(4, 1).ToString();
            if (LastDigit == "2") // Has both oils in - allow split
            {
                txtPPATK601.IsReadOnly = false;
            }

        }

  public void PopulateComboBox()
        {
            Managers.BatchMaterialManager.SetAdriotConnection();
            var Recipes = Managers.AdrBatchRecipeManager.GetCboRecipe();

            Recipes.DefaultView.Sort = "idx";
            View.ComboRecipe.ItemsSource = null;
            View.ComboRecipe.ItemsSource = Recipes.DefaultView;

            View.ComboRecipe.DisplayMemberPath = "StockCodes";
            View.ComboRecipe.SelectedValuePath = "idx";
            View.ComboRecipe.SelectedIndex = 1;
        }`

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Danh mục

Combo box is not displaying the fields from the dropdownlist using wpf xaml