DataGridViewColumn.DataPropertyName Eigenschaft

Definition

Ruft den Namen der Datenquelleneigenschaft oder Datenbankspalte ab, an die DataGridViewColumn gebunden ist, oder legt diesen Namen fest.Gets or sets the name of the data source property or database column to which the DataGridViewColumn is bound.

public:
 property System::String ^ DataPropertyName { System::String ^ get(); void set(System::String ^ value); };
[System.ComponentModel.Browsable(true)]
[System.ComponentModel.TypeConverter("System.Windows.Forms.Design.DataMemberFieldConverter, System.Windows.Forms.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
public string DataPropertyName { get; set; }
[System.ComponentModel.Browsable(true)]
[System.ComponentModel.TypeConverter("System.Windows.Forms.Design.DataMemberFieldConverter, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
public string DataPropertyName { get; set; }
[System.ComponentModel.Browsable(true)]
[System.ComponentModel.TypeConverter("System.Windows.Forms.Design.DataMemberFieldConverter, System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
public string DataPropertyName { get; set; }
member this.DataPropertyName : string with get, set
Public Property DataPropertyName As String

Eigenschaftswert

Der Name der Eigenschaft oder Datenbankspalte, die der DataGridViewColumn zugeordnet ist, bei dem die Groß-/Kleinschreibung beachtet wird.The case-insensitive name of the property or database column associated with the DataGridViewColumn.

Attribute

Beispiele

Im folgenden Codebeispiel wird gezeigt, wie Sie auswählen, welche Eigenschaft die einzelnen Spalten darstellen.The following code example shows how to choose what property each column will represent.

public enum Title
{
    King,
    Sir
};
Public Enum Title
    King
    Sir
End Enum
private void EnumsAndComboBox_Load(object sender, System.EventArgs e)
{
    // Populate the data source.
    bindingSource1.Add(new Knight(Title.King, "Uther", true));
    bindingSource1.Add(new Knight(Title.King, "Arthur", true));
    bindingSource1.Add(new Knight(Title.Sir, "Mordred", false));
    bindingSource1.Add(new Knight(Title.Sir, "Gawain", true));
    bindingSource1.Add(new Knight(Title.Sir, "Galahad", true));

    // Initialize the DataGridView.
    dataGridView1.AutoGenerateColumns = false;
    dataGridView1.AutoSize = true;
    dataGridView1.DataSource = bindingSource1;

    dataGridView1.Columns.Add(CreateComboBoxWithEnums());

    // Initialize and add a text box column.
    DataGridViewColumn column = new DataGridViewTextBoxColumn();
    column.DataPropertyName = "Name";
    column.Name = "Knight";
    dataGridView1.Columns.Add(column);

    // Initialize and add a check box column.
    column = new DataGridViewCheckBoxColumn();
    column.DataPropertyName = "GoodGuy";
    column.Name = "Good";
    dataGridView1.Columns.Add(column);

    // Initialize the form.
    this.Controls.Add(dataGridView1);
    this.AutoSize = true;
    this.Text = "DataGridView object binding demo";
}

DataGridViewComboBoxColumn CreateComboBoxWithEnums()
{
    DataGridViewComboBoxColumn combo = new DataGridViewComboBoxColumn();
    combo.DataSource = Enum.GetValues(typeof(Title));
    combo.DataPropertyName = "Title";
    combo.Name = "Title";
    return combo;
}
#region "business object"
private class Knight
{
    private string hisName;
    private bool good;
    private Title hisTitle;

    public Knight(Title title, string name, bool good)
    {
        hisTitle = title;
        hisName = name;
        this.good = good;
    }

    public Knight()
    {
        hisTitle = Title.Sir;
        hisName = "<enter name>";
        good = true;
    }

    public string Name
    {
        get
        {
            return hisName;
        }

        set
        {
            hisName = value;
        }
    }

    public bool GoodGuy
    {
        get
        {
            return good;
        }
        set
        {
            good = value;
        }
    }

    public Title Title
    {
        get
        {
            return hisTitle;
        }
        set
        {
            hisTitle = value;
        }
    }
}
#endregion
    Private Sub SetupGrid()
        knights = New List(Of Knight)
        knights.Add(New Knight(Title.King, "Uther", True))
        knights.Add(New Knight(Title.King, "Arthur", True))
        knights.Add(New Knight(Title.Sir, "Mordred", False))
        knights.Add(New Knight(Title.Sir, "Gawain", True))
        knights.Add(New Knight(Title.Sir, "Galahad", True))

        ' Initialize the DataGridView.
        dataGridView1.AutoGenerateColumns = False
        dataGridView1.AutoSize = True
        dataGridView1.DataSource = knights

        dataGridView1.Columns.Add(CreateComboBoxWithEnums())

        ' Initialize and add a text box column.
        Dim column As DataGridViewColumn = _
            New DataGridViewTextBoxColumn()
        column.DataPropertyName = "Name"
        column.Name = "Knight"
        dataGridView1.Columns.Add(column)

        ' Initialize and add a check box column.
        column = New DataGridViewCheckBoxColumn()
        column.DataPropertyName = "GoodGuy"
        column.Name = "Good"
        dataGridView1.Columns.Add(column)

        ' Initialize the form.
        Controls.Add(dataGridView1)
        Me.AutoSize = True
        Me.Text = "DataGridView object binding demo"
    End Sub

    Private Function CreateComboBoxWithEnums() As DataGridViewComboBoxColumn
        Dim combo As New DataGridViewComboBoxColumn()
        combo.DataSource = [Enum].GetValues(GetType(Title))
        combo.DataPropertyName = "Title"
        combo.Name = "Title"
        Return combo
    End Function

#Region "business object"
    Private Class Knight
        Private hisName As String
        Private good As Boolean
        Private hisTitle As Title

        Public Sub New(ByVal title As Title, ByVal name As String, _
            ByVal good As Boolean)

            hisTitle = title
            hisName = name
            Me.good = good
        End Sub

        Public Property Name() As String
            Get
                Return hisName
            End Get

            Set(ByVal Value As String)
                hisName = Value
            End Set
        End Property

        Public Property GoodGuy() As Boolean
            Get
                Return good
            End Get
            Set(ByVal Value As Boolean)
                good = Value
            End Set
        End Property

        Public Property Title() As Title
            Get
                Return hisTitle
            End Get
            Set(ByVal Value As Title)
                hisTitle = Value
            End Set
        End Property
    End Class
#End Region

Hinweise

Wenn die AutoGenerateColumns-Eigenschaft auf truefestgelegt ist, legt jede Spalte die DataPropertyName-Eigenschaft automatisch auf den Namen einer Eigenschaft oder Daten Bank Spalte in der Datenquelle fest, die von der DataSource-Eigenschaft angegeben wird.When the AutoGenerateColumns property is set to true, each column automatically sets its DataPropertyName property to the name of a property or database column in the data source specified by the DataSource property. Diese Bindung kann auch manuell ausgeführt werden, was nützlich ist, wenn Sie nur eine Teilmenge der Eigenschaften oder Daten Bank Spalten anzeigen möchten, die in der Datenquelle verfügbar sind.This binding can also be performed manually, which is useful when you want to display only a subset of the properties or database columns available in the data source. Legen Sie in solchen Fällen die AutoGenerateColumns-Eigenschaft auf falsefest, und fügen Sie dann manuell alle DataGridViewColumnhinzu, indem Sie den Wert jeder DataPropertyName-Eigenschaft auf die Eigenschaften oder Daten Bank Spalten in der Datenquelle festlegen, die Sie anzeigen möchten.In such cases, set the AutoGenerateColumns property to false, and then manually add each DataGridViewColumn, setting the value of each DataPropertyName property to the properties or database columns in the data source that you want to display.

Gilt für:

Siehe auch