如何停止将选定的索引更改为在两个组合中工作 [英] How Do I Stop Selected Index Changed To Work In Two Combo

问题描述

我有2个组合框，其中一个包含卷号.第二个包含reg.否.

现在，当我选择卷号时.我应该用reg显示学生详细信息.不.秒那个卷的组合框反之亦然.


问题是到达cmbregno.Text = dr.GetValue(0).ToString())的那一刻

它转到了cmbregno_SelectedIndexChanged方法.并处理该方法.

当我通过regno搜索时.然后执行cmbRoll_SelectedIndexChanged并处理该方法.

I have got 2 combo box one contain roll no. and second contain reg. no.

now when I select roll no. Im supposed to show student detail, with reg. no. in sec. combo box of that roll no. and visa-versa.


Problem is the moment it reach to cmbregno.Text = dr.GetValue(0).ToString())

it went to the cmbregno_SelectedIndexChanged method. and do process the method.

and when I search by regno. than it go the cmbRoll_SelectedIndexChanged and process that method.

How to stop other method to run when it came to that point of reading value.

推荐答案

使用bool variabe来说明您的代码是否在更改组合索引，像

Use a bool variabe stating if is your code who is changing the combo index,something like

bool codeChanging=false;

cmbregno_SelectedIndexChanged(sender...)
{
    if (!codeChanging)
    {
       //do whatevere you are doing here now
       codeChanging=true;
       cmbrollno= dr.GetValue(0).ToString())
     }
     else
     {
        codeChanging=false;
     }

}

cmbrollno_SelectedIndexChanged(sender...)
{
    if (!codeChanging)
    {
       //do whatevere you are doing here now
       codeChanging=true;
       cmbregno= dr.GetValue(0).ToString())
     }
     else
     {
        codeChanging=false;
     }

}

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