问题

添加都是在groupbox的text的位置，每添加一个就不前面加的覆盖了

foreach(DataRow dr in dt.Rows)

         {

            CheckBox chkbox = new CheckBox();

            chkbox.Text = dr["模块名称"].ToString();

            gpboxBrow.Controls.Add(chkbox);

         }

添加位置坐标来解决问题

方法一：

在你的代码中添加这样的代码：

1 2	chkbox.Location = new System.Drawing.Point(349, 210); chkbox.Size = new System.Drawing.Size(75, 23);

例如：动态添加两个Button

private void button2_Click(object sender, EventArgs e)
{
// button1
//
Button btn = new Button();
btn.Location = new System.Drawing.Point(349, 210);
btn.Name = "button1";
btn.Size = new System.Drawing.Size(75, 23);
btn.TabIndex = 2;
btn.Text = "button1";
btn.UseVisualStyleBackColor = true;
this.Controls.Add(btn);

//
// button2
//
Button btn2 = new Button();
btn2.Location = new System.Drawing.Point(349, 240);
btn2.Name = "button2";
btn2.Size = new System.Drawing.Size(75, 23);
btn2.TabIndex = 3;
btn2.Text = "button2";
this.Controls.Add(btn2);
}

或者设置chkbox.Location属性

int y = 0;
foreach(DataRow dr in dt.Rows)
         {
            y += 30;
            CheckBox chkbox = new CheckBox();
            chkbox.Location = new Point(10,y);
            chkbox.Text = dr["模块名称"].ToString();
            gpboxBrow.Controls.Add(chkbox);
         }