在.NET中创建新的最大化MDI子窗体时出现图标问题

    private void MdiBase_Load(object sender, EventArgs e)
    {
        // Fixes bug where loading form maximised in MDI window shows incorrect icon.
        this.Icon = Icon.Clone() as Icon;
    }

这允许您在设计时设置图标(与其他表单一样),并且不需要任何硬编码文件或资源访问。

对,我找到了解决办法。。。

解决方法是在子窗体的加载事件上再次设置图标,如下所示:

private void StatsForm_Load(object sender, EventArgs e)
{
    //bug that means you have to set the desired icon again otherwise it reverts to default when child form is maximised
    Icon = new System.Drawing.Icon("research.ico");
}

嗯 水蚤

我发现唯一的解决方案是停用然后重新激活MDI子项:

document.Show();
// Work-around for error in WinForms that causes MDI children to be loaded with the default .NET icon when opened maximised.
ActivateMdiChild(null);
ActivateMdiChild(document);

这是中给出的解决方案 this reply on MSDN forums 这对我很有效。

private void frmChild_Shown(object sender, EventArgs e)
{
    // Work-around for maximized BUG
    this.Icon = this.MdiParent.Icon;
    this.WindowState = FormWindowState.Normal;
    this.WindowState = FormWindowState.Maximized;
}

我发现这也能解决问题。

myForm.WindowState = FormWindowState.Normal;
myForm.Show();
myForm.WindowState = FormWindowState.Maximized;

form.WindowState = FormWindowState.Normal
form.Show()
form.WindowState = FormWindowState.Maximized
form.Show()

解决了我的问题!

我的解决方案: 将MdiChild“ShowIcon”属性设置为true,分配1x1透明图标。问题解决了。

我发现解决此问题的最佳解决方法是 here

aNewForm.FormBorderStyle = Windows.Forms.FormBorderStyle.FixedDialog
AddHandler aNewForm.SizeChanged, AddressOf Form_SizeChanged

aNewForm.Show()
aNewForm.WindowState = FormWindowState.Maximized

RemoveHandler aNewForm.SizeChanged, AddressOf Form_SizeChanged

处理者

Protected Sub Form_SizeChanged(ByVal sender As Object, ByVal e As EventArgs)

    If WindowState = FormWindowState.Maximized Then
        If FormBorderStyle <> FormBorderStyle.Sizable Then FormBorderStyle = FormBorderStyle.Sizable
    End If

End Sub

将其添加为MDI子项上Form_Load方法的第一行对我很有用:

this.Icon = new Icon(this.Icon, this.Icon.Size);