IVsDataProvider.GetType Method (Guid, String)

Resolves a provider-specific type name to its corresponding Type representation, for a specific DDEX data source.

Namespace: Microsoft.VisualStudio.Data.Core
Assembly: Microsoft.VisualStudio.Data.Core (in Microsoft.VisualStudio.Data.Core.dll)

Syntax

'宣言
Function GetType ( _
    source As Guid, _
    typeName As String _
) As Type
'使用
Dim instance As IVsDataProvider
Dim source As Guid
Dim typeName As String
Dim returnValue As Type

returnValue = instance.GetType(source, _
    typeName)

Type GetType(
    Guid source,
    string typeName
)

Type^ GetType(
    Guid source, 
    String^ typeName
)

function GetType(
    source : Guid, 
    typeName : String
) : Type

Parameters

source
Type: System.Guid

A DDEX data source identifier.

typeName
Type: System.String

A provider-specific type name.

Return Value

Type: System.Type

A Type object that represents the type that is resolved from the specified type name for the specified DDEX data source, if it is found; otherwise, a null reference (Nothing in Visual Basic).

Exceptions

Exception	Condition
ArgumentNullException	The typeName parameter is a null reference (Nothing in Visual Basic).
[<ANY>]	The DDEX provider's GetType or GetType implementation threw an exception.

Remarks

This method checks whether the source parameter value is a non-empty GUID, and, if it is, calls the DDEX provider’s GetType method, if one exists. If no type is available at this point, it calls the GetType method.

Examples

The following code demonstrates how to call this method with a provider-specific type name and then create an instance of this type.

using System;
using Microsoft.VisualStudio.Data.Core;
using Microsoft.VisualStudio.Data.Services.SupportEntities;

public class DDEX_IVsDataProviderExample6
{
    public static IVsDataObjectSelector CreateObjectSelector(
        IVsDataProvider provider, string objectSelectorTypeName)
    {
        Type objectSelectorType = provider.GetType(objectSelectorTypeName);
        return Activator.CreateInstance(objectSelectorType)
            as IVsDataObjectSelector;
    }
}

Permissions

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.