MDI主窗體中可以打開(kāi)多個(gè)子窗體，假如這多個(gè)子窗體是兩種類(lèi)型的(一個(gè)類(lèi)型假設(shè)叫ChildForm1,另一個(gè)類(lèi)型假設(shè)叫ChildForm2)，我們可以通過(guò)LayoutMdi對(duì)打開(kāi)的所有子窗體進(jìn)行排序，代碼如下： private int i = 1; private void toolStripButton1_Click(object sender, EventArgs e) { var childForm1 = new ChildForm1 {MdiParent = this, TopLevel = false,Text = "第"+i+"個(gè)窗體"}; childForm1.Show(); i++; } private void toolStripButton2_Click(object sender, EventArgs e) { var childForm2 = new ChildForm2 { MdiParent = this, TopLevel = false, Text = "第" + i + "個(gè)窗體" }; childForm2.Show(); i++; } private void toolStripButton3_Click(object sender, EventArgs e) { //垂直平鋪 this.LayoutMdi(MdiLayout.TileVertical); } private void toolStripButton4_Click(object sender, EventArgs e) { //水平平鋪 this.LayoutMdi(MdiLayout.TileHorizontal); } private void toolStripButton5_Click(object sender, EventArgs e) { //層疊 this.LayoutMdi(MdiLayout.Cascade); } 現(xiàn)在有個(gè)需求，假如打開(kāi)多個(gè)ChildForm1和ChildForm2窗體后進(jìn)行界面排序，選擇垂直平鋪時(shí)，ChildForm1必須在ChildForm2的上面，當(dāng)選擇水平平鋪時(shí)，ChildForm1必須在ChildForm2的左面，當(dāng)選擇層疊時(shí)最先打開(kāi)的在最外層。大牛幫幫忙。