ControlExtensions.AddLabel Method (ControlCollection, Double, Double, Double, Double, String)

Статья
07/25/2011

Adds a new Label control to the worksheet in the specified size and location.

Namespace: Microsoft.Office.Tools.Excel
Assembly: Microsoft.Office.Tools.Excel.v4.0.Utilities (in Microsoft.Office.Tools.Excel.v4.0.Utilities.dll)

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function AddLabel ( _
    controls As ControlCollection, _
    left As Double, _
    top As Double, _
    width As Double, _
    height As Double, _
    name As String _
) As Label

public static Label AddLabel(
    this ControlCollection controls,
    double left,
    double top,
    double width,
    double height,
    string name
)

Parameters

controls
Type: Microsoft.Office.Tools.Excel.ControlCollection
The collection to add the control to. Do not supply this parameter yourself. When you call this method on the collection returned by the Worksheet.Controls property (in an application-level project) or the WorksheetBase.Controls property (in a document-level project), this parameter is supplied automatically.

left
Type: System.Double
The distance in points between the left edge of the control and the left edge of the worksheet.

top
Type: System.Double
The distance in points between the top edge of the control and the top edge of the worksheet.

width
Type: System.Double
The width of the control in points.

height
Type: System.Double
The height of the control in points.

name
Type: System.String
The name of the control.

Return Value

Type: Microsoft.Office.Tools.Excel.Controls.Label
The Label control that was added to the ControlCollection instance.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type ControlCollection. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Exceptions

Exception	Condition
ArgumentNullException	The name argument is nulla null reference (Nothing in Visual Basic) or has zero length.
ControlNameAlreadyExistsException	A control with the same name is already in the ControlCollection instance.

Remarks

The AddLabel method enables you to add Label objects to the end of the ControlCollection. To remove a Label control that was previously added programmatically, use the Remove method.

Examples

The following code example adds a Label control to the top of the worksheet, and then changes the text to First Name. To use this example, run it from the Sheet1 class in a document-level project.

    Private Sub ExcelAddLabel()

        Dim Label1 As Microsoft.Office.Tools.Excel. _
            Controls.Label = Me.Controls.AddLabel( _
            0, 0, 75, 17.25, "Label1")
        Label1.Text = "First Name"

    End Sub

private void ExcelAddLabel()
{

    Microsoft.Office.Tools.Excel.Controls.Label
        label1 = this.Controls.AddLabel(
        0, 0, 75, 17.25, "label1");
    label1.Text = "First Name";
}

.NET Framework Security

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

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