MDi)子窗体的名称为(
Child)
using System; using System.Windows.Forms; namespace MDi { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void 新建ToolStripMenuItem_Click(object sender, EventArgs e) { Child mychild = new Child(); mychild.MdiParent = this; mychild.Show(); } private void 层叠ToolStripMenuItem_Click(object sender, EventArgs e) { LayoutMdi(MdiLayout.Cascade); } private void 水平ToolStripMenuItem_Click(object sender, EventArgs e) { LayoutMdi(MdiLayout.TileHorizontal); } private void 竖直ToolStripMenuItem_Click(object sender, EventArgs e) { LayoutMdi(MdiLayout.TileVertical); } private void 关闭ToolStripMenuItem_Click(object sender, EventArgs e) { Close(); } } }

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