如果文件不存在，如何保存文件....但是，如果文件确实存在，请询问用户是否要覆盖，并且仅在单击“是"时才保存 [英] How to save file if file does not exists.... but if file does exist, ask user if they want to overwrite and only save it if they click yes

问题描述

到目前为止，这是我的代码，但是当用户单击不想覆盖文件时，在第一个另存为"时会发生错误:

Here is my code so far but when the user clicks that they don't want to over write the file, an error occurs at the first Save As:

        If My.Computer.FileSystem.FileExists(TextBox1.Text) = False Then
            oBook.SaveAs(TextBox1.Text)
            MsgBox("Your file has been saved.")

        ElseIf My.Computer.FileSystem.FileExists(TextBox1.Text) = True Then

            If MsgBox("Prompt", MsgBoxStyle.YesNo, "Title") = MsgBoxResult.Yes Then
                oBook.SaveAs(TextBox1.Text)
                MsgBox("Your file has been saved.")
            ElseIf MsgBox("Prompt", MsgBoxStyle.YesNo, "Title") = MsgBoxResult.No Then
                Hide()

                End If
            End If

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HIRA RASHEED

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HIRA RASHEED

推荐答案

Hi Hira，

Hi Hira,

此论坛是针对Visual Studio IDE的，您的问题与VB更为相关，我将其移至相应的论坛中，以获取专业的答案.

This forum is for Visual Studio IDE, your issue is more related to VB, I'll move it to corresponding forum for you to get a professional answer.

感谢您的理解.

最诚挚的问候

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