Question

当我不知道用户在运行时选择了多少复选框时，如何在String数组中存储动态创建的复选框的名称。假设我有10个动态复选框，10个用户随机选择6个复选框，现在如何获取所选复选框的名称并将它们存储在String数组中。

我知道如何在动态复选框上使用事件处理程序但是当我不知道数组的大小时，如何声明Straing数组会很困惑。

这是我到目前为止所做的事情 -

    private void CheckBoxCheckedChanged(object sender, EventArgs e)
    {
        CheckBox c = (CheckBox)sender;
        //Label myLabel;
        String str = null;
        if (c.Checked == true)
        {
            str = c.Text;
            gpBox[gpcount] = new GroupBox();
            gpBox[gpcount].Name = "gpBox" + Convert.ToString(count);
            gpBox[gpcount].Text = str;
            gpBox[gpcount].Location = new Point(5, gpposition);
            gpBox[gpcount].AutoSize = true;
            this.Controls.Add(gpBox[gpcount]);

            aCommand3 = new OleDbCommand("select * from batch_tbl where batch_branch LIKE '" + str + "'", main_connection);
            aAdapter3 = new OleDbDataAdapter(aCommand3);
            ds3 = new DataSet();
            aAdapter3.Fill(ds3, "app_info");
            ds3.Tables[0].Constraints.Add("pk_bno", ds3.Tables[0].Columns[0], true);
            int batch_count = ds3.Tables[0].Rows.Count;
            batchCheckBox = new CheckBox[batch_count];
            //filling the groupbox with batch code by generating dynamic checkboxes
            for (int j=0; j < batch_count; ++j)
            {
                batchCheckBox[j] = new CheckBox();
                batchCheckBox[j].Name = "batch" + Convert.ToString(k);
                batchCheckBox[j].Text = ds3.Tables[0].Rows[j][1].ToString();
                Console.WriteLine(batchCheckBox[j].Text);
                batchCheckBox[j].Location = new System.Drawing.Point(104 * position, 30);
                gpBox[gpcount].Controls.Add(batchCheckBox[j]);
                batchCheckBox[j].CheckStateChanged += new System.EventHandler(BatchBoxCheckedChanged);
                position++;
                count++;
                Console.WriteLine(batchCheckBox[j].Name);
                k++;
            }
            position = 1;
            gpposition += 100;
        }
        else
        {
            count--;
            this.Controls.RemoveByKey("lbl" + c.Name);
            this.Update();
        }
    }
    int total_batch = 1;
    string[] batchname;
    private void BatchBoxCheckedChanged(object sender, EventArgs e)
    {
        CheckBox batchBox = (CheckBox)sender;
        //Here I want to store name of checkbox in array
        if (batchBox.Checked == true)
        {
            batchname = new String[total_batch];
            total_batch++;

        }
        else
        {
        }
    }

Answer 1

你可以试试这个：

    //Gets all checkbox's on the form
    List<CheckBox> chks = Controls.OfType<CheckBox>().ToList();

    //take only those who is checked, and select only their name property
    List<string> names = chks.Where(c => c.Checked).Select(c => c.Name).ToList();

<强>更新

为了进行测试，您可以打印所选名称的列表：

string txt = "";
foreach(string name in names)
{
   txt += name+" \n\r";
}
MessageBox.Show(txt);

Answer 2

谢谢大家

}
        list = new List<string>();
    }

    private void BatchBoxCheckedChanged(object sender, EventArgs e)
    {
        CheckBox batchBox = (CheckBox)sender;
        //Here I want to store name of checkbox in array

        if (batchBox.Checked == true)
        {
            list.Add(batchBox.Text);  
        }
    }
    private void button1_Click(object sender, EventArgs e)
    {
        foreach(string prime in list) // Loop through List with foreach
        {
            Console.WriteLine(prime);
        }
    }

这是完成

如何在String数组中存储动态复选框的名称

2 个答案: