How to Bind Generic List with the WinForms ComboBox?
You can bind the WinForms ComboBox with Generic List. Refer to the following steps to achieve this requirement.
1)Initialize the Class and the Properties based on your requirement.
2)Populate the List with required details.
3)Proceed to assign as ComboBoxAdv DataSource.
The following code example demonstrates the same.
C#
List<Country> CountryList = new List<Country>();
//Adds the item into the list
CountryList.Add(new Country { Key = "India" });
CountryList.Add(new Country { Key = "US" });
CountryList.Add(new Country { Key = "UK" });
CountryList.Add(new Country { Key = "China" });
//Binds the list to the ComboBoxAdv
comboBoxAdv1.DataSource = CountryList;
comboBoxAdv1.DisplayMember = "Key";
private void comboBoxAdv1_SelectedIndexChanged(object sender, EventArgs e)
{
this.listBox1.Items.Clear();
//Gets the ComboBoxAdv SelectedItem
Country selectedCountry = comboBoxAdv1.SelectedItem as Country;
this.listBox1.Items.Add(selectedCountry.Key);
}
//Specifies the List
public class Country
{
public string Key {get; set;}
}
VB
Dim CountryList As New List(Of Country)()
'Adds the item into the list
CountryList.Add(New Country With {.Key = "India"})
CountryList.Add(New Country With {.Key = "US"})
CountryList.Add(New Country With {.Key = "UK"})
CountryList.Add(New Country With {.Key = "China"})
'Binds the list to the ComboBoxAdv
comboBoxAdv1.DataSource = CountryList
comboBoxAdv1.DisplayMember = "Key"
Private Sub comboBoxAdv1_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs) Handles comboBoxAdv1.SelectedIndexChanged
Me.listBox1.Items.Clear()
'Gets the ComboBoxAdv SelectedItem
Dim selectedCountry As Country = TryCast(comboBoxAdv1.SelectedItem, Country)
Me.listBox1.Items.Add(selectedCountry.Key)
End Sub
'Specifies the List
Public Class Country
Private privateKey As String
Public Property Key() As String
Get
Return privateKey
End Get
Set(ByVal value As String)
privateKey = value
End Set
End Property
End Class
Figure 1:The selected item of the ComboBoxAdv is displayed in ListBox.
I hope you enjoyed learning about how to bind generic list with the WinForms ComboBox.
You can refer to our WinForms ComboBox feature tour page to know about its other groundbreaking feature representations. You can also explore our documentation to understand how to create and manipulate data.
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