无法在表单上使用控件。(Unable to use controls on the form.)

   IT问题网   2021-02-20 00:00:00

问 题

嗨,

我创建了一些我拥有的表单的静态实例。在后退按钮上单击事件调用 currentformobj.close(); 后跟 formobj.showdialog(); 。我得到的例外是"价值不在预期的范围内"。但是,当我使用 formobj.show(); 时,表单显示但无法访问表单上的控件。你可以帮忙吗?



谢谢

yashwanth

解决方案

之前没有看到该错误消息 - 但您需要更多信息。在vs中,转到菜单上的"debug",然后选择"exceptions"。在每个方框中打勾,然后按ok。

无论何时抛出,您都会收到异常 - 无论是否处理。通过调试器运行代码,希望您应该更好地了解什么代码抛出了低级异常,以及原因。另请查看innerexception属性 - 它可能是相关的。

标签:无法没法表单使用控件



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