问题描述
我有一个数字列表框.当我单击数字时，我想在控制台中显示它.有什么原因为什么行不通呢?Console.WriteLine(Int32.Parse(listBox1.SelectedItems.ToString()));
感谢您的帮助.
I have a listbox of numbers. When I click on the number I want to show it in the console. Is there any reason why this wouldn''t work.Console.WriteLine(Int32.Parse(listBox1.SelectedItems.ToString()));
Any help is appreciated.
推荐答案
System.Windows.Forms.ListBox+SelectedObjectCollection
那可能不是您所期望的.然后，当您使用Parse函数时，它会引发错误，因为它不是数字值.
我的另一建议是，如果您确信它会起作用，请仅使用Parse方法.否则，请改用TryParse.
That''s probably not what you were expecting. Then, when you used the Parse function, it would have thrown an error because it is not a numeric value.
My other suggestion is only use the Parse methods if you are assured that it will work. Otherwise, use TryParse instead.
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