组合框的控制索引更改事件 [英] Control index change event of a combobox

问题描述

美好的一天

我创建了一个Windows Form应用程序，该应用程序在表单上带有一个组合框.

我正在使用组合框的click事件将字典中的值读入组合框.

Good day

I have created a Windows Form application with a combobox on the form.

I am reading the values from a dictionary into the combobox by using the click event of the combobox.

private void cmbRplStatus_Click(object sender, EventArgs e)
      {
          dctRplStatus();
}

我已经在组合框的索引更改事件上编写了以下代码

I have written the following code on the Index change event of the combobox

if (cmbRplStatus.Text == "Active")
           {
               MessageBox.Show("You clicked on Active");

我遇到的问题是，当我单击组合框时，甚至在我单击组合框内部的活动框之前，都会自动出现您单击活动框"消息.

我必须更改什么，以便当我单击combox内的活动"时，必须显示您单击活动的消息?我必须控制组合框的索引更改吗?

The problem that I am having is, the moment I click on the combobox the message, "You clicked on active" automatically comes up, before I even clicked on active inside of the combobox.

What must I change so that when I click on "active" inside of the combox, then the message You clicked on active must show? Must I control the Index change of the combobox?

推荐答案

为此，您可以使用ComboBox 控件的SelectedIndexChanged 事件.这里给出一个例子
http://msdn.microsoft.com /en-us/library/system.windows.forms.combobox.selectedindexchanged(v=vs.100).aspx [

You can use SelectedIndexChanged event of the ComboBox control for this purpose. An example is given here
http://msdn.microsoft.com/en-us/library/system.windows.forms.combobox.selectedindexchanged(v=vs.100).aspx[^]

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