OpenFileDialog 类

定义

public ref class OpenFileDialog sealed : Microsoft::Win32::FileDialog

public sealed class OpenFileDialog : Microsoft.Win32.FileDialog

type OpenFileDialog = class
    inherit FileDialog

Public NotInheritable Class OpenFileDialog
Inherits FileDialog

继承

Object

CommonDialog

FileDialog

OpenFileDialog

示例

以下示例演示如何创建 OpenFileDialog 包含默认文件名和扩展名类型的值。

// Configure open file dialog box
Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog();
dlg.FileName = "Document"; // Default file name
dlg.DefaultExt = ".txt"; // Default file extension
dlg.Filter = "Text documents (.txt)|*.txt"; // Filter files by extension

// Show open file dialog box
Nullable<bool> result = dlg.ShowDialog();

// Process open file dialog box results
if (result.Value)
{
    // Open document
    string filename = dlg.FileName;
}

' Configure open file dialog box
Dim dlg As New Microsoft.Win32.OpenFileDialog()
dlg.FileName = "Document" ' Default file name
dlg.DefaultExt = ".txt" ' Default file extension
dlg.Filter = "Text documents (.txt)|*.txt" ' Filter files by extension

' Show open file dialog box
Dim result? As Boolean = dlg.ShowDialog()

' Process open file dialog box results
If result = True Then
    ' Open document
    Dim filename As String = dlg.FileName
End If

注解

不能在 XAML 中声明此托管类。

另请参阅

• SaveFileDialog