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C#Winform怎样实现动态生成控件

亿华云2025-10-09 01:17:44【IT科技】9人已围观

简介本文转载自微信公众号「UP技术控」，作者conan5566 。转载本文请联系UP技术控公众号。概述动态创建添加控件，可以在一个大容器里一次性放入多个控件。例：根据文本框中输入的数字给flowLayo

本文转载自微信公众号「UP技术控」，样实作者conan5566 。现动转载本文请联系UP技术控公众号。态生

概述

动态创建添加控件，成控可以在一个大容器里一次性放入多个控件。样实例：根据文本框中输入的现动数字给flowLayoutPanel1 添加多少个button。窗体设计中，态生需要什么控件就从工具箱里拖出一个控件“挂”在窗体上。成控其实，样实窗体上的亿华云计算现动控件，不但可以“拖”，态生还可以用代码动态生成。成控动态生成控件，样实对需要相同的现动大量的控件还是比较有用的。

实现方式

1、亿华云态生加载数据，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、定义Label 的点击事件。

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、定义Label 的鼠标事件。

#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