如何在Visual Basic 2008 Express Edition中修复此错误

本文介绍了如何在Visual Basic 2008 Express Edition中修复此错误的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

当我以vb形式放置打印按钮代码时:

When i put the print button code in my vb form:

Private Sub btnPrint_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPrint.Click
        PrintForm1.PrinterSettings.DefaultPageSettings.Landscape = True
        PrintForm1.Print()

它给我错误:对象变量或With块变量未设置
对于行:PrintForm1.PrinterSettings.DefaultPageSettings.Landscape = True

it gives me the error: Object variable or With block variable not set
for line :PrintForm1.PrinterSettings.DefaultPageSettings.Landscape = True

推荐答案

If PrintForm1 IsNot Nothing Then

'YOUR CODE

End If

尼什的猜想:

PrintForm1为null.

试试，

Nish''s Guess:

PrintForm1 is null.

Try,

PrintForm1 = New PrintForm1
PrintForm1.PrinterSettings.DefaultPageSettings.Landscape = True
PrintForm1.Print()

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