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ComboBox.DataSource Property

Gets or sets the data source for this ComboBox.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

'Declaration
Public Property DataSource As Object
'Usage
Dim instance As ComboBox 
Dim value As Object 

value = instance.DataSource

instance.DataSource = value

Property Value

Type: System.Object
An object that implements the IList interface, such as a DataSet or an Array. The default is Nothing.

A data source can be a database, a Web service, or an object that can later be used to generate data-bound controls. When the DataSource property is set, the items collection cannot be modified.

The following example uses the DataSource property to display an array of weekdays in a ComboBox.

Imports System.Windows.Forms

Public Class Form1
    Inherits System.Windows.Forms.Form

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) _
            Handles MyBase.Load

        Dim comboBox As New ComboBox
        Dim daysOfWeek As String() = _
            New String() {"Monday", "Tuesday", "Wednesday", _
                          "Thursday", "Friday", "Saturday", _
                          "Sunday"}

        With comboBox
            .DataSource = daysOfWeek
            .Location = New System.Drawing.Point(12, 12)
            .Name = "comboBox"
            .Size = New System.Drawing.Size(166, 21)
            .DropDownStyle = ComboBoxStyle.DropDownList
        End With 

        Me.Controls.Add(comboBox)
    End Sub 

End Class

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0

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