标签：
需求：
滚动滚动条时显示pnlBack里面的button
文本框里输入数字，改变每行显示的按钮数
源码如下：
/// <summary>
/// 窗体加载/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void Form1_Load(object sender, EventArgs e){ InitialButtons();}/// <summary>/// 往pnlBack中添加button并联动水平滚动条/// </summary>/// <param name="a">每行显示的button数，默认为15</param>private void InitialButtons(int a = 15){ //初始化显示在pnlBack里面的button if (txtCols.Text.Trim() != "") { int.TryParse(txtCols.Text.Trim(), out a); if (a <= 0) { a = 15; } } pnlBack.Controls.Clear(); for (int i = 0; i < 60; i++) { Button btn = new Button(); btn.Size = new Size(140, 80); btn.Text = "Text" + (i + 1); if (i < a) { btn.Location = new Point(i * 140 + (i + 1) * 10, 10); } else if (i < 2 * a) { btn.Location = new Point((i - a) * 140 + (i + 1 - a) * 10, 100); } else if (i < 3 * a) { btn.Location = new Point((i - 2 * a) * 140 + (i + 1 - 2 * a) * 10, 190); } else { btn.Location = new Point((i - 3 * a) * 140 + (i + 1 - 3 * a) * 10, 280); } pnlBack.Controls.Add(btn); }标签：
原文地址：http://www.cnblogs.com/meiyou123/p/5732880.html
