如何动态产生Button,停靠在主窗体的panel.

Question

因为要动态产生的Button数量为数据库的数据所决定。所以必需用代码产生Button.
要求放在panel上，每行，每列的个数不一样。
超出panel,大小，自动产生滚动条。

Answer 1

panel1.AutoScroll = true;Button btn = new Button();btn.Size = new Size(75, 20);panel1.Controls.Add(btn);

Answer 2

btn.Location = new Point(5, 5); //这个设置位置...具体,你可以根据行列来计算Button摆放的位置...

Answer 3

public void putRoomOn()
        {
            // 清空所有房间          
            panel1.Controls.Clear();            //一行排列多少间房            int rowCount = Convert.ToInt32(ds.Tables["FTCSB0"].Rows[0].ItemArray[5].ToString());
            //计数器            int roomCount = 0;
            //房台宽度
            int roomWid = Convert.ToInt32(ds.Tables["FTCSB0"].Rows[0].ItemArray[1].ToString());
            //房台高度
            int roomHei = Convert.ToInt32(ds.Tables["FTCSB0"].Rows[0].ItemArray[2].ToString());
            //数据库房间总数
            int AllRooms = dvroom.Count;
            //两房态之间的距离
            int roomjl = Convert.ToInt32(ds.Tables["FTCSB0"].Rows[0].ItemArray[4].ToString());
          
            //房间Y轴间距            int Locttion_y = 5;
            int i, j;
            for (i = 0; i < AllRooms / rowCount+1; i++)
            {
                //房台X轴间距                int Location_X = 5;
                for (j = 0; j < rowCount; j++)
                {
                    //判断房间数据是否都读齐了
                    if (roomCount == AllRooms)
                        break;                    //labelRoom样式
                    #region
                    labRoom = new Label();
                    labRoom.Name = "labRoom" + i.ToString() + j.ToString();
                    labRoom.AutoSize = false;
                    labRoom.ForeColor = lblAll.ForeColor;
                    labRoom.BorderStyle = BorderStyle.FixedSingle;
                    labRoom.Cursor = System.Windows.Forms.Cursors.Hand;
                    labRoom.Location = new System.Drawing.Point(Location_X, Locttion_y);
                   
                    //获取房间参数
                    roomID = dvroom[i * rowCount + j][0].ToString().Trim();
                    roomType = dvroom[i * rowCount + j][3].ToString().Trim();
roomzt = dvroom[i*rowCount+j][4].ToString().Trim();
                    roomtzsm = dvroom[i * rowCount + j][8].ToString().Trim();
                    roomydf = dvroom[i * rowCount + j][7].ToString().Trim();
                    roomfj = dvroom[i * rowCount + j][5].ToString().Trim(); 
                    //文本设置
                    labRoom.Text = roomID + "\n" + roomType;
                    //右键菜单
                    labRoom.ContextMenuStrip = this.contextMenu;
                    //颜色设置
                    #region
                    switch (roomzt)
                    {
                        case "VC":
                            labRoom.BackColor = this.lblkjf.BackColor;
                            this.tlTRoom.SetToolTip(labRoom, "\r\n\r\n   " + roomtzsm + "   \r\n\r\n");
                            break;
                        case "OC":
                            labRoom.BackColor = this.lblzhf.BackColor;
                            dvTS.RowFilter = "房号='" + roomID + "' and 标识='I'";
                            try
                            {
                                string kerenzh = dvTS[0][0].ToString();
                                string fh = dvTS[0][2].ToString();
                                string xm = dvTS[0][1].ToString();
                                string fj = dvTS[0][3].ToString();
                                string ddrq = dvTS[0][4].ToString();
                                string ldrq = dvTS[0][5].ToString();
                                this.tlTRoom.SetToolTip(labRoom, "  \r\n  帐号：" + kerenzh + "　房号：" + fh + "  \r\n  姓名：" + xm + "房价：" + fj + "(￥)  \r\n  抵店日期：" + ddrq + "  \r\n  离店日期：" + ldrq + "\r\n");
                            }
                            catch (Exception ex)
                            {
                                MessageBox.Show(ex.Message);
                            }
                            break;
                        case "VD":
                            labRoom.BackColor = this.lblzf.BackColor;
                            break;
                        case "OO":
                            labRoom.BackColor = this.lblwxf.BackColor;
                            dvWXXX.RowFilter = "FH0000='" + roomID + "' and XFT000='OO'";
                            dvWXXX.Sort = "RQ0000 desc";
                            this.tlTRoom.SetToolTip(labRoom, dvWXXX[0][3].ToString());
                            break;
                    }
                    #endregion                    labRoom.Size = new System.Drawing.Size(roomWid, roomHei);
                    labRoom.MouseDown += new System.Windows.Forms.MouseEventHandler(this.lbl_MouseDown);
                    labRoom.DoubleClick += new System.EventHandler(lbl_DoubleClick);
                    this.panel1.Controls.Add(labRoom);                    #endregion                    Location_X += roomWid + roomjl;
                    roomCount++;
                }
                Locttion_y += roomHei + roomjl;
            }
        }
        //鼠标单击时间
        private void lbl_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            Label b = (Label)sender;
            lblel = b;
            this.txtnum.Text = b.Text.Substring(0, 4);
        }

Answer 4

参考代码:panel1.AutoScroll = true;for(int row=0;row<20;row++)
{
   for(int col=0;col<10;col++)
   {
      Button btn = new Button();
      btn.Size = new Size(75, 20);
      btn.Location = new Point(col*(btn.Width+5), row*(btn.Height+5));
      panel1.Controls.Add(btn);
   }
}