private void treeView1_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e) { if (e.Node.Text.Trim() == "图书添加") { FrmTianJia frmTianJia = new FrmTianJia(); frmTianJia.ShowDialog(); frmTianJia.Dispose(); } else if (e.Node.Text.Trim() == "图书修改") { FrmXiuGai frmXiuGai = new FrmXiuGai(); frmXiuGai.ShowDialog(); frmXiuGai.Dispose(); } else if (e.Node.Text.Trim() == "图书删除") { FrmShanChu frmShanChu = new FrmShanChu(); frmShanChu.ShowDialog(); frmShanChu.Dispose(); } else if (e.Node.Text.Trim() == "图书查询") { BookManagermentFrom from = new BookManagermentFrom(); from.ShowDialog(); from.Dispose(); } else if (e.Node.Text.Trim() == "用户借书") { FrmBooksBorrow frmBooksBorrow = new FrmBooksBorrow(); frmBooksBorrow.ShowDialog(); frmBooksBorrow.Dispose(); } else if (e.Node.Text.Trim() == "用户还书") { FrmBooksReturn frmBookReturn = new FrmBooksReturn(); frmBookReturn.ShowDialog(); frmBookReturn.Dispose(); } else if (e.Node.Text.Trim() == "重新登录") { DialogResult dr = MessageBox.Show("是否注销用户", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Warning); if (dr == DialogResult.Yes) { FrmLogin frmLogin = new FrmLogin(); frmLogin.Show(); this.Hide(); } else { } } else if (e.Node.Text.Trim() == "用户管理") { FrmYongHu frmYongHu = new FrmYongHu(); frmYongHu.ShowDialog(); frmYongHu.Dispose(); } else if (e.Node.Text.Trim() == "退出系统") { Application.Exit(); //退出系统 } else if (e.Node.Text.Trim() == "计算器") { System.Diagnostics.Process.Start("calc.exe"); } else if (e.Node.Text.Trim() == "记事本") { System.Diagnostics.Process.Start("notepad.exe"); } else if (e.Node.Text.Trim() == "帮助") { MessageBox.Show("欢迎使用该图书管理!!!"); } }
private void 图书添加ToolStripMenuItem_Click(object sender, EventArgs e) { FrmTianJia frmTianJia = new FrmTianJia(); frmTianJia.Show(); }