错误是Corrent上下文中不存在Err [英] Error is Err is does not exist in Corrent Context

问题描述

请帮助..... !!

Pls Help.....!!

public static void SaveJPGWithCompressionSetting(System.Drawing.Image image, string szFileName, long lCompression)
    {
        // ERROR: Not supported in C#: OnErrorStatement
        //goto chkErr;
        //goto chkErr onError;
        bool errOcr = false;
        if (errOcr == true)
        {
            goto chkErr;
        }
        EncoderParameters eps = new EncoderParameters(1);
        eps.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, lCompression);
        ImageCodecInfo ici = GetEncoderInfo("image/jpeg");
        image.Save(szFileName, ici, eps);
        return;
    chkErr:
        string strPageErro="Error: " +Err.Number + " " +Err.Description + "\\r\\n" + "Choose a different name for file.";
        //mbox("Error: " +Err.Number + " " +Err.Description + "\\r\\n" + "Choose a different name for file.");
        errOcr = true;
        //Resume next;

    }

谢谢... !!

Thanks...!!

推荐答案

narendrarathod写道:

narendrarathod wrote:

错误:不支持在C#中:OnErrorStatement

ERROR: Not supported in C#: OnErrorStatement

哪一部分让您感到困惑?

Which part of that is confusing you ?

narendrarathod写道:

narendrarathod wrote:

bool errOcr = false;
如果(errOcr == true)
{
goto chkErr;
}

bool errOcr = false;
if (errOcr == true)
{
goto chkErr;
}

这显然是白痴.删除它，它什么都不做，并且是一个设计不良的构造.请改用try catch.在我看来，这就像是不良的VB6，有人将其转换为VB.NET，而您正尝试手动转换为C#.是吗?

This is obviously idiocy. Delete it, it does nothing, and is a poorly designed construct. Use a try catch instead. This looks to me like bad VB6 that someone converted to VB.NET and you''re trying to move to C# by hand. Is that right ?

我同意Christian的观点，这看起来像是转换后的VB6代码.

这是东西:

在VB.NET中，"Err"对象仍然存在，但在C#中却不存在.

您需要做的就像克里斯蒂安建议的那样:将代码包装在try/catch语句中:

I agree with Christian, this looks like converted VB6 code.

Here''s the thing:

The "Err" object still exists in VB.NET, but it DOESN''T exist in C#.

What you need to do is like Christian suggested: Wrap your code in a try/catch statement:

try
{
//Your code goes here
}
catch (Exception ex)
{
//Error caught here, now use the properties of the Exception object, e.g. Discription:
string errorDiscription = ex.Discription;
}

祝你好运

另一件事:即使在.NET中是可能的；我想不出您需要使用"Goto"的任何原因，因此请避免在以后再使用...只是更好编程的提示

Good luck

Another thing: Even though it is possible in .NET; I can''t think of ANY reason where you would need to use "Goto", so try to avoid that in the future... Just a tip for better programming

你的问题吗?您所做的就是发布一些代码.我们不能只是凭空想出你想要的东西.

So, what''s your question? All you did was post some code. We can''t just divine from thin air what you might want.

这篇关于错误是Corrent上下文中不存在Err的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！