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C#Winform怎樣實現(xiàn)動態(tài)生成控件
本文轉(zhuǎn)載自微信公眾號「UP技術(shù)控」，作者conan5566 。轉(zhuǎn)載本文請聯(lián)系UP技術(shù)控公眾號。
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概述
動態(tài)創(chuàng)建添加控件，可以在一個大容器里一次性放入多個控件。例：根據(jù)文本框中輸入的數(shù)字 給flowLayoutPanel1 添加多少個button。窗體設(shè)計中，需要什么控件就從工具箱里拖出一個控件“掛”在窗體上。其實，窗體上的控件，不但可以“拖”，還可以用代碼動態(tài)生成。動態(tài)生成控件，對需要相同的大量的控件還是比較有用的。
實現(xiàn)方式
1、加載數(shù)據(jù)，往panel添加Label 控件。
- private void LoadRoomType()
- {
- DataTable dtRoomType = _roomTypeBLL.GetModelList("", "Code");
- pnlRoomType.Controls.Clear();
- int padding = 5;
- int x = padding, y = padding;
- pnlRoom.Controls.Clear();
- foreach (DataRow item in dtRoomType.Rows)
- {
- Label lbl = new Label();
- lbl.Text = string.Format("{0}", item["Names"]);
- lbl.Image = btnRoomType.Image;
- lbl.Cursor = Cursors.IBeam;
- lbl.TextAlign = btnRoomType.TextAlign;
- lbl.Font = btnRoomType.Font;
- lbl.ForeColor = btnRoomType.ForeColor;
- lbl.Size = btnRoomType.Size;
- lbl.Location = new Point(x, y);
- lbl.Tag = item;
- lbl.Click += new EventHandler(lbl_Click);
- lbl.MouseEnter += new EventHandler(lbl_MouseEnter);
- lbl.MouseLeave += new EventHandler(lbl_MouseLeave);
- x += lbl.Width + padding;
- if (x + lbl.Width > pnlRoomType.Width)
- {
- x = padding;
- y += lbl.Height + padding;
- }
- pnlRoomType.Controls.Add(lbl);
- }
- int height = y + (x != padding ? pnlRoomType.Height : 0) + padding;
- int addHeight = height - pnlRoomType.Height;
- pnlRoom.Top = pnlRoom.Top + addHeight;
- pnlRoom.Height = pnlRoom.Height - addHeight;
- pnlRoomType.Height = pnlRoomType.Height + addHeight;
- if (dtRoomType.Rows.Count > 0)
- LoadRoomByTypeID(dtRoomType.Rows[0], 0);
- }
2、定義Label 的點擊事件。
- void lbl_Click(object sender, EventArgs e)
- {
- try
- {
- Label lbl = sender as Label;
- DataRow row = lbl.Tag as DataRow;
- LoadRoomByTypeID(row, 0);
- }
- catch (Exception ex)
- {
- ;
- }
- }
3、定義Label 的鼠標事件。
- #region lbl_MouseLeave
- void lbl_MouseLeave(object sender, EventArgs e)
- {
- Label lbl = sender as Label;
- lbl.Font = new Font(lbl.Font, FontStyle.Regular);
- lbl.Cursor = Cursors.Default;
- lbl.ForeColor = btnRoomType.ForeColor;
- }
- #endregion
- #region lbl_MouseEnter
- void lbl_MouseEnter(object sender, EventArgs e)
- {
- Label lbl = sender as Label;
- lbl.Font = new Font(lbl.Font, FontStyle.Bold);
- lbl.Cursor = Cursors.IBeam;
- }
- #endregion
效果
網(wǎng)頁標題：C#Winform怎樣實現(xiàn)動態(tài)生成控件
標題URL：http://www.fisionsoft.com.cn/article/djpeodc.html
