Question

我在winfrom中有100个复选框。他们的名字是顺序像checkbox1，checkbox2等。我的winform中有一个提交按钮。单击提交按钮后，它会检查是否选中了复选框，然后更新某个值，否则更新另一个值。我必须选中100复选框。所以我必须遍历100复选框以检查是否选中了复选框。

我知道如何选中复选框

private void sumit_button_Click(object sender, EventArgs e)
{
     if (checkbox1.Checked)
     { 
        //  update 
     }
     else
     {  
        // update another  
     }

     if (checkbox2.Checked)
     {  
        //  update    
     }
     else
     {   
        // update another  
     }

     ......................and so on

}

但我怎么能为100复选框做这个???

Answer 1

foreach (var control in this.Controls) // I guess this is your form
            {
                if (control is CheckBox)
                {
                    if (((CheckBox)control).Checked)
                    {
                        //update
                    }
                    else
                    {
                        //update another
                    }
                }
            }

Answer 2

foreach (var ctrl in panel.Controls) {
    if (ctrl is CheckBox && ((CheckBox)ctrl).IsChecked) {
        //Do Something
    }
}

Answer 3

foreach (var box in this.Controls.OfType<CheckBox>())
{
    if (box.Checked)
    {
        //...
    }
    else
    {
        //...
    }
}

Answer 4

有LINQ方法OfType。为什么不用它来摆脱手动型式测试和铸造呢？

foreach (var ctrl in panel.Controls.OfType<CheckBox>().Where(x => x.IsChecked)
{
    // ....
}

Answer 5

    foreach (Control childc in Page.Controls)
    {

            if (childc is CheckBox)
            {
                CheckBox chk = (CheckBox)childc;
                //do your operation

            }

    }

Answer 6

这是这个的答案................

C＃

           string movie="";
           if (checkBox1.Checked == true)
            {
                movie=movie+checkBox1.Text + ",";
            }
            if (checkBox2.Checked == true)
            {
                movie=movie+checkBox2.Text + ",";
            }
            if (checkBox3.Checked == true)
            {
                movie=movie+checkBox3.Text + ",";
            }

            if (checkBox4.Checked == true)
            {
                movie = movie + checkBox4.Text + ",";
            }
            if (checkBox5.Checked == true)
            {
                movie = movie + checkBox5.Text + ",";
            }
            if (checkBox6.Checked == true)
            {
                movie = movie + checkBox6.Text + ",";
            }
          row["EnquiryFor"] = movie.ToString();

其中row是DataRow的对象，而EnquiryFor是sql table column ....的名称。

如何循环遍历C＃中的多个复选框

6 个答案: