如何确定组合框内是否有物品？

问题描述

我在C＃中有一个简单的winforms应用程序，它具有两个控件： combobox1 和 button 。当然，分别是 ComboBox 和 Button 。我想找出 combobox1 ...

I have simple winforms application in C# which has two controls: combobox1 and button. Of course, a ComboBox and Button respectively. I would like to find out if there are any items in combobox1...

中是否有任何项目，但是尝试了它只会告诉我是否存在选定的项目：

I have tried this, but it only tells me if there is a selected item:

if (combobox1.Text != ""))
{
    MessageBox.Show("Combo is not empty");
}

推荐答案

在表单，然后将此代码插入click事件处理程序内：`

Double click on your button in the Form and insert this code inside the click event handler : `

        //this code should work
        if (comboBox1.Items.Count == 0)
        {
            MessageBox.Show("Your combo is empty");
        }

   `

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