//图书检索菜单Click事件处理
private void 图书检索ToolStripMenuItem_Click(object sender, EventArgs e)
{
if (this.checkchildfrm("frmSearchBook") == true)
{
return;
}
frmSearchBook book = new frmSearchBook();
book.MdiParent = this;
book.Show();
}
private void tsbtnSearch_Click(object sender, EventArgs e) //图书查询
{
if (this.checkchildfrm("frmSearchBook") == true) //检测该窗口是否处于打开状态
{
return; //窗口已打开，返回
}
frmSearchBook book = new frmSearchBook(); //实例化图书查询窗体
book.MdiParent = this; //设置为当前窗体的子窗体
book.Show(); //图书查询窗体以非模式对话框的方式打开
}
//图书查询按钮Click事件处理
private void tsbtnSearch_Click(object sender, EventArgs e)
{
if (this.checkchildfrm("frmSearchBook") == true)
{
return;
}
frmSearchBook book = new frmSearchBook();
book.MdiParent = this; //设置为当前窗体的子窗体
book.Show();
}