下拉框ComboBox支持多选 谁有自己重写的combobox控件啊,要支持可以多选的 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 问题补充:就是有一个下拉框,绑定的信息是系统的版本号,现在项目中要实现用户可以选多个版本,进行查询些信息。系统是Winform的 没有现成的,提供一个思路:用ListView一列的方式来实现 也行楼主不想看到“checkbox”喔 用 ToolStripDropDown类 //这只是一个最简单的现实,实际上还要写很多代码..... private void button2_Click(object sender, EventArgs e) { FlowLayoutPanel lp = new FlowLayoutPanel(); ToolStripDropDown tool = new ToolStripDropDown(); lp.BackColor = Color.Transparent; lp.AutoScroll = true; lp.FlowDirection = FlowDirection.TopDown; lp.WrapContents = false; lp.Size = new Size(400, 300); lp.Controls.Add(new CheckBox() { Text = "选择我" }); lp.Controls.Add(new CheckBox() { Text = "选择他" }); lp.Controls.Add(new CheckBox() { Text = "选择你" }); lp.Controls.Add(new CheckBox() { Text = "选择TA" }); lp.Controls.Add(new CheckBox() { Text = "选择我" }); lp.Controls.Add(new CheckBox() { Text = "选择他" }); lp.Controls.Add(new CheckBox() { Text = "选择你" }); lp.Controls.Add(new CheckBox() { Text = "选择TA" }); lp.Dock = DockStyle.Fill; ToolStripControlHost host = new ToolStripControlHost(lp); host.Dock = DockStyle.Fill; tool.Items.Add(host); tool.Show(button2, new Point(0, this.button2.Height)); } 在类中保存值类型的引用 求高手帮助急~~~ ***PDF输出的问题。 C#入门经典中关于SQL连接字符串的问题 Socket问题 明早之前必须解决 急急急!!!!!! showPopup位置怎么定位? string.substring(1,1)返回空还是0? 用C#做一个C/S模式的聊天系统怎么实现聊天内容的传送? SqlDataReader的打开方式?? 如何在sql中换行 如何用C#实现Potoshop中的layer层控制板? 基于B/S架构的报价系统
用ListView一列的方式来实现
{
FlowLayoutPanel lp = new FlowLayoutPanel();
ToolStripDropDown tool = new ToolStripDropDown();
lp.BackColor = Color.Transparent;
lp.AutoScroll = true;
lp.FlowDirection = FlowDirection.TopDown;
lp.WrapContents = false;
lp.Size = new Size(400, 300);
lp.Controls.Add(new CheckBox() { Text = "选择我" });
lp.Controls.Add(new CheckBox() { Text = "选择他" });
lp.Controls.Add(new CheckBox() { Text = "选择你" });
lp.Controls.Add(new CheckBox() { Text = "选择TA" });
lp.Controls.Add(new CheckBox() { Text = "选择我" });
lp.Controls.Add(new CheckBox() { Text = "选择他" });
lp.Controls.Add(new CheckBox() { Text = "选择你" });
lp.Controls.Add(new CheckBox() { Text = "选择TA" });
lp.Dock = DockStyle.Fill;
ToolStripControlHost host = new ToolStripControlHost(lp);
host.Dock = DockStyle.Fill;
tool.Items.Add(host);
tool.Show(button2, new Point(0, this.button2.Height));
}