[英]How to bring MDI Child Form To Front?
概述:
我有一个MDI Parent Form,其中我加载了其他forms。加载第二个表格后,我不能再将第一个放在前面。
描述:
在父窗体上,我有一个包含 2 个菜单项的菜单条; 主页和搜索。 每个点击事件都会加载相应的表单,除非该表单已加载。
问题:
一种。 单击搜索。 然后单击主页。
b. 如果再次单击“搜索”,它不再将其对应的、已打开的表单带到最前面。
private void tsmHome_Click(object sender, EventArgs e)
{
// Loop through all open forms...
foreach (Form form in Application.OpenForms)
{
// If frmHome is Opened, set focus to it and exit subroutine.
if (form.GetType() == typeof(frmSearch))
{
form.Activate();
return;
}
}
// If frmHome is not Opened, create it.
frmHome f = new frmHome();
f.MdiParent = this;
f.Show();
}
private void tsmSearch_Click(object sender, EventArgs e)
{
// Loop through all open forms...
foreach (Form form in Application.OpenForms)
{
// If frmSearch is Opened, set focus to it and exit subroutine.
if (form.GetType() == typeof(frmSearch))
{
form.Activate();
return;
}
}
// If frmSearch is not Opened, create it.
frmSearch f = new frmSearch();
f.MdiParent = this;
f.Show();
}
您的代码正在为我工作..在您的tsmHome_Click
事件处理程序中更改一行后
你有过。
if (form.GetType() == typeof(frmSearch))
它应该是。
if (form.GetType() == typeof(frmHome))
看起来像复制粘贴错误让你。
您可以尝试以下几种选择:
f.TopMost = true;
f.BringToFront();
此外,您可以在对话框模式下打开窗口:
f.ShowDialog();
希望这会有所帮助。 最好的祝福,
您可以将代码更改为此,如果表单存在,请将其置于最前面。
// Loop through all open forms...
foreach (Form form in Application.OpenForms)
{
// If frmSearch is Opened, set focus to it and exit subroutine.
if (form.GetType() == typeof(frmSearch))
{
form.Activate();
form.BringToFront();
//form.WindowState = FormWindowState.Maximized;
return;
}
}
// If frmSearch is not Opened, create it.
frmSearch f = new frmSearch();
f.MdiParent = this;
f.Show();
foreach (Form form in System.Windows.Forms.Application.OpenForms)
{
if (form.GetType() == typeof(Tviewer))
{
form.WindowState = FormWindowState.Minimized;
form.WindowState = FormWindowState.Normal;
return;
}
}
//它对我有用。
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