我有一个很奇怪的,但reproductible问题。
我有一个MenuStrip
其可以打开一个新的无模式形式与Form.Show()
方法。
子窗体也有一个菜单条。
当您通过单击子窗体的菜单条开始奇怪的事情发生。 然后父窗体是回来前景和打招呼。 这是一个真正的痛苦。
如何防止这个问题?
一个史科瑟思电影通过以下链接来说明我的问题zippyshare.com (3MO)
正如你可以看到在视频,父窗体不采取重点,它只是通过其他somehing前bringed。
需要注意的是repacing的MenuStrip
由ToolStrip
解决这个问题。
一些代码来重现问题:
public class DemoLostfocus : Form
{
private void InitializeComponent()
{
this.menuStrip1 = new MenuStrip();
this.fileToolStripMenuItem = new ToolStripMenuItem();
this.openModelessFormToolStripMenuItem = new ToolStripMenuItem();
this.menuStrip1.SuspendLayout();
this.SuspendLayout();
this.menuStrip1.Items.AddRange(new ToolStripItem[] {
this.fileToolStripMenuItem});
this.menuStrip1.Location = new System.Drawing.Point(0, 0);
this.menuStrip1.Name = "menuStrip1";
this.menuStrip1.Size = new System.Drawing.Size(284, 24);
this.menuStrip1.TabIndex = 0;
this.menuStrip1.Text = "menuStrip1";
this.fileToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] {
this.openModelessFormToolStripMenuItem});
this.fileToolStripMenuItem.Name = "fileToolStripMenuItem";
this.fileToolStripMenuItem.Size = new System.Drawing.Size(37, 20);
this.fileToolStripMenuItem.Text = "File";
this.openModelessFormToolStripMenuItem.Name = "openModelessFormToolStripMenuItem";
this.openModelessFormToolStripMenuItem.Size = new System.Drawing.Size(187, 22);
this.openModelessFormToolStripMenuItem.Text = "Open Modeless Form";
this.openModelessFormToolStripMenuItem.Click += new System.EventHandler(this.openModelessFormToolStripMenuItem_Click);
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(284, 262);
this.Controls.Add(this.menuStrip1);
this.MainMenuStrip = this.menuStrip1;
this.Name = "DemoLostfocus";
this.Text = "DemoLostfocus";
this.menuStrip1.ResumeLayout(false);
this.menuStrip1.PerformLayout();
this.ResumeLayout(false);
this.PerformLayout();
}
private MenuStrip menuStrip1;
private ToolStripMenuItem fileToolStripMenuItem;
private ToolStripMenuItem openModelessFormToolStripMenuItem;
public DemoLostfocus()
{
InitializeComponent();
}
private void openModelessFormToolStripMenuItem_Click(object sender, EventArgs e)
{
(new DemoLostfocus()).Show();
}
}