WPF ComboBox Data Binding Binding

ComboBox data-bound list lists a collection of values that differentiate between display values and selections

Overall effect:

Print selected values and display values separately according to the ComboBox selection

Code:

Windows Forms:

1 <Windowx:class= "Comboxbinding.mainwindow"2 xmlns= "Http://schemas.microsoft.com/winfx/2006/xaml/presentation"3 xmlns:x= "Http://schemas.microsoft.com/winfx/2006/xaml"4 Title= "Combox binding"Height= "192.857"Width= "385"windowstartuplocation= "Centerscreen"Loaded= "window_loaded">5     <Grid>6         <ComboBoxName= "ComBox1"HorizontalAlignment= "Left"Margin= "74,10,0,0"Width= "209"Height= "All"VerticalAlignment= "Top"/>7         <TextBlockName= "Txtselectedvalue"Width= "$"Text="{Binding elementname=combox1, path=selectedvalue}"HorizontalAlignment= "Left"Margin= "115,58,0,0"textwrapping= "Wrap"VerticalAlignment= "Top"Background= "#FFE7FBFA"/>8         <TextBlockName= "Txtselectedtext"Width= "$"Text="{Binding elementname=combox1, path=text}"HorizontalAlignment= "Left"Margin= "114,88,0,0"textwrapping= "Wrap"VerticalAlignment= "Top"Background= "#FFE7FBFA"/>9         <LabelContent= "SelectedValue"HorizontalAlignment= "Left"Margin= "2,58,0,0"VerticalAlignment= "Top"/>Ten         <LabelContent= "SelectedText"HorizontalAlignment= "Left"Margin= "10,86,0,0"VerticalAlignment= "Top"/> One  A     </Grid> - </Window>

XamlForm CS Code

1 usingSystem.Collections.Generic;2 usingSystem.Windows;3 4 namespacecomboxbinding5 {6     /// <summary>7     ///the interactive logic of MainWindow.xaml8     /// </summary>9      Public Partial classMainwindow:windowTen     { One          PublicMainWindow () A         { - InitializeComponent (); -         } the  -         Private voidWindow_Loaded (Objectsender, RoutedEventArgs e) -         { -List<comboxbind> Lstcmbbind =NewList<comboxbind> ();//used to bind a data source +  -             //initializing the data source +Comboxbind CBB =NewComboxbind ("Display value 1","Select a value of 1"); A Lstcmbbind.add (CBB); atCBB =NewComboxbind ("Display value 2","Select a value of 2"); - Lstcmbbind.add (CBB); -CBB =NewComboxbind ("Display Value 3","Select a value of 3"); - Lstcmbbind.add (CBB); -  -              This. Combox1.itemssource =Lstcmbbind; inCombox1.displaymemberpath ="Cmbtext";//properties in the class Comboxbind -Combox1.selectedvaluepath ="Cmbvalue";//properties in the class Comboxbind to         } +     } -}

View Code

Class used to bind a ComboBox

1 namespacecomboxbinding2 {3     /// <summary>4     ///for Combox data binding5     /// </summary>6     classComboxbind7     {8         //constructor Function9          PublicComboxbind (string_cmbtext,string_cmbvalue)Ten         { One              This. Cmbtext =_cmbtext; A              This. Cmbvalue =_cmbvalue; -         } -  the         //used to display values -         Private stringCmbtext; -          Public stringCmbtext -         { +             Get{returnCmbtext;} -             Set{Cmbtext =value;} +         } A  at         //values for actual selection -         Private stringCmbvalue; -          Public stringCmbvalue -         { -             Get{returnCmbvalue;} -             Set{Cmbvalue =value;} in         } -     } to}

C #

WPF ComboBox Data Binding Binding