How to bind combobox in WPF in C#.Net?

Question

Hello everyone,

I have arraylist users.

How can I add combobox Zeroth position defult text?

<ComboBox ItemsSource="{Binding UserName}" Name="cmbUserName" Height="30"
VerticalAlignment="Top" Margin="10,64,614,0"/>

var logList = service.GetLogDetails();
var UserName = (from A in logList orderby A.FirstName select new UserName { Users = A.FirstName + " " + A.SurName, ID = Convert.ToInt32(A.Id) }).Distinct();
cmbUserName.Text = "Username"; /* How can I add combobox Zeroth position text? */
cmbUserName.ItemsSource = UserName;

I want to add these usernames in Combobox and set ID. Then, pass ID where combobox on change. How can I do this?

Amit Gupta · Answer

Pass the collection to bind the combobox then fetch the id when it got selected. //assuming usernames is a collection that contains username and id Combobox.ItemsSource = usernames; Combobox.DisplayMemberPath =UserName; Thats all you have to do. Fetching the id when it get selected Var col = combobox.SelectedItem as Usernames; Var id = col.id; Further reference http://stackoverflow.com/questions/1460612/wpf-combobox-displaymemberpath Do let me know if it solves your problem.

Praveen Gopal · Answer

_TheList.Add("Accepted"); _TheList.Add("Not Accepted"); public List _TheList = new List (); public List TheList { get { return this._TheList; } set { this._TheList = value; OnPropertyChanged("TheList"); } } XAML: ItemSource ="{Binding TheList}" SelctedValue="{Binding SelectedItem,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" View: public void OnPropertyChanged(string propertyName) { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } } public event PropertyChangedEventHandler PropertyChanged; public string selectedItem; public string SelectedItem { get { return selectedItem; } set { this.selectedItem = value; OnPropertyChanged("SelectedItem"); } } May be this helps

Amit Gupta · Answer

You have to use DisplayMemberPath Combobox.DisplayMemberPath =UserName; //UserName = variable name Read my previous answer carefully, it should work. Do let me know if it solves or share your code snippet to show what are you doing.

Abhilash J A · Answer

Hello Amit Gupta, I have tried but not showing User Name with ID, showing like this. How can I ?

How to bind combobox in WPF in C#.Net?

Answers (4)