如何停止专注于控制 [英] how to stop focus on control

问题描述

朋友们，



以下是我的代码。

 private void comboBox7_SelectedIndexChanged（object sender，EventArgs e）
 {
 if（radioButton2.Checked == true） 
 {
 comp.CLASSID = Convert.ToInt32（comboBox2.SelectedValue.ToString（））; 
 comp.ACADAMICYEAR = textBox1.Text; 
 comp.MEDIUM = comboBox1.Text; 
 comp.SECTIONNAME = Convert.ToChar（comboBox4.Text）; 
 DataTable studentdet = inter.getstudentlistforclass（comp）; 
 dataGridView1.DataSource = studentdet; 
 DataGridViewTextBoxColumn fourthcolumn = new DataGridViewTextBoxColumn（）; 
 fourthcolumn.HeaderText = comboBox7.Text; 
 fourthcolumn.Name = comboBox7.Text; 
 dataGridView1.Columns.Add（fourthcolumn）; 
 
 
} 
} 

 private void comboBox6_Leave （对象发送者，EventArgs e）
 {
 
 
 if（radioButton2.Checked == true）
 {
 comp.CLASSID = Convert.ToInt32（ comboBox2.SelectedValue.ToString（））; 
 comp.ACADAMICYEAR = textBox1.Text; 
 comp.MEDIUM = comboBox1.Text; 
 comp.EXAMNAMES = comboBox6.Text; 
 DataTable subjectname = inter.getexamnamefordatagridastable（comp）; 
 comboBox7.DataSource = subjectname; 
 comboBox7.DisplayMember =SubjectName; 
 comboBox7.ValueMember =SubjectCode; 
} 
} 
 

当我使用combobox7_selectedevent时，完成此事件后它会自动转到combobox6_leave，即使在

 comboBox7.DataSource = subjectname; 
 comboBox7.DisplayMember =   SubjectName; 
 comboBox7.ValueMember =   SubjectCode; 

我不想通过这种方式。我想仅在combobox7事件中停止焦点。有什么想法吗？

提前谢谢

解决方案

你错误地认为它实际上是在做另一种方式。



首先发生combobox6_leave并且执行控制转移到combobox_7选择更改事件。

如果你在combo_7选择更改事件中有查询，你可以跳过从combo6 leave方法设置它

Hi friends,

The below is my code.

private void comboBox7_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (radioButton2.Checked == true)
            {
                comp.CLASSID = Convert.ToInt32(comboBox2.SelectedValue.ToString());
                comp.ACADAMICYEAR = textBox1.Text;
                comp.MEDIUM = comboBox1.Text;
                comp.SECTIONNAME = Convert.ToChar(comboBox4.Text);
                DataTable studentdet = inter.getstudentlistforclass(comp);
                dataGridView1.DataSource = studentdet;
                DataGridViewTextBoxColumn fourthcolumn = new DataGridViewTextBoxColumn();
                fourthcolumn.HeaderText = comboBox7.Text;
                fourthcolumn.Name = comboBox7.Text;
                dataGridView1.Columns.Add(fourthcolumn);
                
                
            }
        }

private void comboBox6_Leave(object sender, EventArgs e)
       {


           if (radioButton2.Checked == true)
           {
               comp.CLASSID = Convert.ToInt32(comboBox2.SelectedValue.ToString());
               comp.ACADAMICYEAR = textBox1.Text;
               comp.MEDIUM = comboBox1.Text;
               comp.EXAMNAMES = comboBox6.Text;
               DataTable subjectname = inter.getexamnamefordatagridastable(comp);
               comboBox7.DataSource = subjectname;
               comboBox7.DisplayMember = "SubjectName";
               comboBox7.ValueMember = "SubjectCode";
           }
       }

when i working with combobox7_selectedevent, after completing this event it automatically going to combobox6_leave even at the place of

comboBox7.DataSource = subjectname;
                comboBox7.DisplayMember = "SubjectName";
                comboBox7.ValueMember = "SubjectCode";

I dont want to go through this way. i want to stop that focus only in combobox7 event. Is any idea?
Advance Thanks

解决方案

You are wrong your assumption it actually doing the other way.

combobox6_leave occurs first and the execution control transfer to combobox_7 selection changed event.
if you have alread querying inside combo_7 selection change event you can skip setting it from combo6 leave method.

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