ExceptionMessageBox 类

定义

public ref class ExceptionMessageBox

[System.Runtime.InteropServices.ComVisible(false)]
public class ExceptionMessageBox

[<System.Runtime.InteropServices.ComVisible(false)>]
type ExceptionMessageBox = class

Public Class ExceptionMessageBox

继承

Object

ExceptionMessageBox

属性

ComVisibleAttribute

示例

本示例显示带有 “确定 ”按钮的消息框。

try
{
    // Do something that may generate an exception.
    throw new ApplicationException("An error has occured");
}
catch (ApplicationException ex)
{
    // Define a new top-level error message.
    string str = "The action failed.";

    // Add the new top-level message to the handled exception.
    ApplicationException exTop = new ApplicationException(str, ex);
    exTop.Source = this.Text;

    // Show an exception message box with an OK button (the default).
    ExceptionMessageBox box = new ExceptionMessageBox(exTop);
    box.Show(this);
}

Try
    ' Do something that may generate an exception.
    Throw New ApplicationException("An error has occured")
Catch ex As ApplicationException
    ' Define a new top-level error message.
    Dim str As String = "The action failed."

    ' Add the new top-level message to the handled exception.
    Dim exTop As ApplicationException = New ApplicationException(str, ex)
    exTop.Source = Me.Text

    ' Show an exception message box with an OK button (the default).
    Dim box As ExceptionMessageBox = New ExceptionMessageBox(exTop)
    box.Show(Me)
End Try

以下示例使用异常消息框来显示对排除故障或调试有帮助的其他信息。

try
{
    // Do something that you don't expect to generate an exception.
    throw new ApplicationException("Failed to connect to the server.");
}
catch (ApplicationException ex)
{
    string str = "An unexpected error occurred. Please call Helpdesk.";
    ApplicationException exTop = new ApplicationException(str, ex);
    exTop.Source = this.Text;

    // Information in the Data property of an exception that has a name
    // beginning with "HelpLink.Advanced" is shown when the user
    // clicks the Advanced Information button of the exception message
    // box dialog box.
    exTop.Data.Add("AdvancedInformation.FileName", "application.dll");
    exTop.Data.Add("AdvancedInformation.FilePosition", "line 355");
    exTop.Data.Add("AdvancedInformation.UserContext", "single user mode");

    // Show the exception message box with additional information that 
    // is helpful when a user calls technical support.
    ExceptionMessageBox box = new ExceptionMessageBox(exTop);

    box.Show(this);
}

Try
    ' Do something that you don't expect to generate an exception.
    Throw New ApplicationException("Failed to connect to the server.")
Catch ex As ApplicationException
    Dim str As String = "An unexpected error occurred. Please call Helpdesk."
    Dim exTop As ApplicationException = New ApplicationException(str, ex)
    exTop.Source = Me.Text

    ' Information in the Data property of an exception that has a name
    ' beginning with "HelpLink.Advanced" is shown when the user
    ' clicks the Advanced Information button of the exception message
    ' box dialog box.
    exTop.Data.Add("AdvancedInformation.FileName", "application.dll")
    exTop.Data.Add("AdvancedInformation.FilePosition", "line 355")
    exTop.Data.Add("AdvancedInformation.UserContext", "single user mode")

    ' Show the exception message box with additional information that 
    ' is helpful when a user calls technical support.
    Dim box As ExceptionMessageBox = New ExceptionMessageBox(exTop)

    box.Show(Me)

End Try

构造函数

属性

方法

事件

适用于