Databases
StackOverflow2013
Postsdbo
POChild form of invisible parent never being shown?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POChild form of invisible parent never being shown?
    primarykey
    data
    text
    <p>I have a main form, which is invisible and at some point creates a child form. That child form looks like this in designer.cs:</p> <pre><code> this.listBox1 = new System.Windows.Forms.ListBox(); this.SuspendLayout(); // // listBox1 // this.listBox1.FormattingEnabled = true; //this.listBox1.Location = new System.Drawing.Point(0, 0); this.listBox1.Name = "listBox1"; this.listBox1.Size = new System.Drawing.Size(255, 147); this.listBox1.TabIndex = 0; // // Form2 // this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; this.AutoSize = true; this.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink; this.ClientSize = new System.Drawing.Size(502, 384); this.ControlBox = false; this.Controls.Add(this.listBox1); this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None; this.Name = "Form2"; this.Text = "Form2"; </code></pre> <p>and in the main form I'm creating the Form2 as follows:</p> <pre><code> Form2 a = new Form2(new Point(0, Screen.PrimaryScreen.WorkingArea.Height / 2)); //This is the location Thread thtt = new Thread((ThreadStart)delegate() { a.CreateControl(); a.Show(); TimeSpan slept = TimeSpan.Zero; while (!a.Created &amp;&amp; slept &lt; TimeSpan.FromMilliseconds(2000)) { Thread.Sleep(99); slept += TimeSpan.FromMilliseconds(99); } if (!a.Created) { MessageBox.Show("after 2 sec no creation?"); System.Diagnostics.Debugger.Break(); } else { //a.Show(); a.Invoke((MethodInvoker)delegate() { a.TopMost = true; a.Location = new Point(0, Screen.PrimaryScreen.WorkingArea.Height / 2); Cursor.Position = new Point(a.Location.X + 10, a.Location.Y + 10); a.AddAndAct(minimized); }); } aa = a; }); thtt.IsBackground = true; thtt.Start(); </code></pre> <p>The problem I'm encountering is, that the Form2 is actually flashing, but then disappears magically. Any suggestions appriciated.</p> <p>Thanks in advice, Alex</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USalex
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COMay I ask why you are creating an invisible parent? Is the Visible property of the first form actually set to false? What is the trigger in your code for the parent form to call the code above and create the child?
      singulars
      1. POChild form of invisible parent never being shown?
      1. USChris Barlow
    2. COthe trigger is a hotkey, and the parents Visible is set to false. The parent form is being created, but at some point Hide(); is being called on it, so its no more visible. When the hotkey is called, a event handler is being invoked, which then creates the client.
      singulars
      1. POChild form of invisible parent never being shown?
      1. USalex
    3. COActually, its being closed! I just had a look with EnumThreadWindows, the window shows for 1 sec, then closes without a word. Very weird...
      singulars
      1. POChild form of invisible parent never being shown?
      1. USalex
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload