HtmlElement.InvokeMember Method (String, Object[]) (System.Windows.Forms)

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.NET Framework Class Library

HtmlElement.InvokeMember Method (String, Object[])

Executes a function defined in the current HTML page by a scripting language.

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

Syntax

Visual Basic

Public Function InvokeMember ( _
	methodName As String, _
	ParamArray parameter As Object() _
) As Object

public Object InvokeMember(
	string methodName,
	params Object[] parameter
)

Visual C++

public:
Object^ InvokeMember(
	String^ methodName, 
	... array<Object^>^ parameter
)

member InvokeMember : 
        methodName:string * 
        parameter:Object[] -> Object

Parameters

methodName: Type: System.String
The name of the property or method to invoke.

parameter: Type: System.Object[]
A list of parameters to pass.

Return Value

Type: System.Object
The element returned by the function, represented as an Object. If this Object is another HTML element, and you have a reference to the unmanaged MSHTML library added to your project, you can cast it to its appropriate unmanaged interface.

Remarks

This method can be used to call methods from the Document Object Model (DOM) that do not have equivalents in managed code. All arguments supplied to InvokeMember will be converted to Win32 VARIANT data types before they are passed to the named scripting function.

Examples

The following code example gets a TABLE called dataTable and uses the unexposed moveRow method to move a row from the end of the table to the beginning.

Visual Basic


Private Sub ShiftRows(ByVal TableName As String)
    If (WebBrowser1.Document IsNot Nothing) Then
        With WebBrowser1.Document
            Dim Elems As HtmlElementCollection = .All.GetElementsByName(TableName)
            If (Not Elems Is Nothing And Elems.Count > 0) Then
                Dim Elem As HtmlElement = Elems(0)

                ' Prepare the arguments.
                Dim Args(2) As Object
                Args(0) = CObj("-1")
                Args(1) = CObj("0")

                Elem.InvokeMember("moveRow", Args)
            End If
        End With
    End If
End Sub


		private void ShiftRows(String tableName)
		{
			if (webBrowser1.Document != null)
			{
				HtmlDocument doc = webBrowser1.Document;
				HtmlElementCollection elems = doc.All.GetElementsByName(tableName);
				if (elems != null && elems.Count > 0)
				{
					HtmlElement elem = elems[0];

					// Prepare the arguments.
					Object[] args = new Object[2];
					args[0] = (Object)"-1";
					args[1] = (Object)"0";

					elem.InvokeMember("moveRow", args);
				}
			}
		}

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

Reference

HtmlElement Class

InvokeMember Overload

System.Windows.Forms Namespace