在组合框中进行选择后，我们如何制作eanble和禁用文本框 [英] how we make eanble and disable the textboxes after making selection in combobox

问题描述

在组合框内进行选择时，我在启用和禁用控件方面遇到问题.

I have problem to enable and disable control while making selection in combobox.

推荐答案

使用组合框selectedindexchanged事件作为设置AutoPostback = true
根据收到的选定索引
您可以启用或禁用类似
的文本框
if(combo1.selecteditem.text =="a")
txtbox1.enabled = true;
其他
txtbox1.enabled = false;

use combobox selectedindexchanged event as set AutoPostback=true
on basis of recieved selected index
u can enable or disable textboxes like

if(combo1.selecteditem.text=="a")
txtbox1.enabled=true;
else
txtbox1.enabled=false;

使用组合框的SelectedIndexChanged事件.在这种方法中，您可以使用

Use the SelectedIndexChanged event of the combo box. In that method, you can use

TextBox.Enable = true; // to enable it

TextBox.Enable = false;  // to disable it

如果要在选择过程处于活动状态时禁用文本框，则应签出:

If you mean to disable textboxes while selection process is active you should check out:

private void comboBox1_DropDown(object sender, EventArgs e)
{
    //Do your stuff
}
private void comboBox1_DropDownClosed(object sender, EventArgs e)
{
    //Undo your stuff
}

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