如何修复它Sysytem.windows.form AxHost.InvalidActiveXStateException"通过 [英] How to fix it error that Sysytem.windows.form AxHost.InvalidActiveXStateException " was through

问题描述

M使用下面的代码，但我得到了Sysytem.windows.form AxHost.InvalidActiveXStateException错误..

M using folloing code but I get Sysytem.windows.form AxHost.InvalidActiveXStateException error..

OpenFileDialog openFileDialog1 = new OpenFileDialog();
            //openFileDialog1.InitialDirectory = Application.StartupPath + "\\Reports\\";
            openFileDialog1.RestoreDirectory = true;
            openFileDialog1.Filter = "Pdf Files|*.pdf";
                try
                {
                   if (openFileDialog1.ShowDialog() == DialogResult.OK)
                    {
                     
                        AxAcroPDF a = new AxAcroPDF();
                        a.LoadFile(Application.StartupPath + "\\Reports\\");
                        a.Show();
                                        
                    }
                }
                catch (ArgumentException  ex)
                {
                    MessageBox.Show(ex.Message.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }

推荐答案

Hello Dipika。



我想你想在Acrobat中打开PDF文件吗？



那段代码对我来说似乎没问题。但是消息说它不是正确[情绪;]]状态。



如果只需要显示PDF文件，请使用.NET内置Webrowser和将该文件传递给该控件。我对ActiveX Interop感到非常沮丧。



也许我没有解决Code问题但是对于PDF阅读器来说不再需要那个任务了。



cu一个快乐的编码

Hello Dipika.

I think you want to Open the PDF-File inside Acrobat ?

That Code seems allright to me. But the message says it was not in the right [mood ;)] State.

If it is only needed to display the PDF file use the .NET builtin Webrowser and pass that file to that Control. Ist so frustrating with ActiveX Interop.

Maybe i didnt solved that Code issue but for a PDF Reader there is no need for that task anymore.

c.u. an happy coding

对于每个活动的x控件，首先需要创建它，以便初始化所有的事件和句柄。



试试.. :)

For each and every active x control, it is needed to create it first, so that all the events and handles should be initialized.

try.. :)

AxAcroPDF.CreateControl()

[已解决]系统.Windows.Forms.AxHost.InvalidActiveXStateException未处理 [ ^ ]



AxHost.InvalidActiveXStateException [ ^ ]

再次问好。< br $> b $ b

Hello again.

AxAcroPDF a = new AxAcroPDF();
                    a.LoadFile(Application.StartupPath + "\\Reports\\");
                    a.Show();

您的变量/实例名为 a



我认为你需要尝试这个。

Your Variable/Instance is named a

I think you need to try this instead.

a.CreateControl()
a.LoadFile(Application.StartupPath + "\\Reports\\");
a.Show();

AxAcroPDF是控制类型， a 是实例，它将与选定的PDF文档一起显示。



错误：

AxAcroPDF is the Type of Control, and a is the Instance, which will be shown with the selected PDF document.

Wrong:

axAcroPDF1.CreateControl();

正确

Right

a.CreateControl();

如果第一个问题中的代码同时没有改变。



...即使这是答案标记为已解决。不要打那个东西......;）



c.u。

If the Code in the first Question doesn´t changed meanwhile.

...even if this is Answer is marked as solved. Don´t hit me with that thing... ;)

c.u.

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