Mike,

I just looked at the form… All fields are defaulting to Top, Left.

Here is the code that’s failing:

 

Attachments:

1. TestExpandableFormsApp-1.zip

Mike,

After taking your test application and modifying it so that it starts to replicate what we are doing, I think I've discovered the source of the problem and why the controls are not visible.

If I add a control to the Group Box with a Location beyond the ExpandedSize of the control, even if I grow the Expanded Size of the Group Box AFTER I add my control, the control is not visible. If I increment the ExpandedSize of the Group Box BEFORE I add my control, everything works as expected.

Let me clean up the test code and I'll post it here for your reference.

Mike,

That doesn’t work for me at all….

As a test, I simplified my code down to the bare essentials… In my app, I have a Panel that will hold the Ultra Expandable Group Box. At runtime, I create the Group Box just like you do, and add it to my panel with:

this.panel4.Controls.Add(expandableGroupBox);

I followed your code and added a button to the Group Box.

Here’s what I see:  

As a test, I added an Expandable Group Box to my form via the Visual Studio Designer. At run time, I placed the same button I used from your example into that control.

So a Design Time control is able to accept controls added at run-time, but an Ultra Expandable Group box added at run-time never displays any controls. This is very confusing!

Michael,

I’m basically following the code located at https://www.infragistics.com/help/winforms/infragistics.win.misc~infragistics.win.misc.ultraexpandablegroupbox

to understand how to add controls. One big difference from the example of yours and Mine is – I’ve created the Ultra Expandable Group Box at run-time.

My code looks like:

UltraExpandableGroupBox grpBox_1 = new UltraExpandableGroupBox(); UltraExpandableGroupBoxPanel ultraExpandableGroupBoxPanel_1 = new UltraExpandableGroupBoxPanel();// // grpBox_1 // grpBox_1.Controls.Add(ultraExpandableGroupBoxPanel_1); grpBox_1.Dock = System.Windows.Forms.DockStyle.Top; grpBox_1.ExpandedSize = new System.Drawing.Size(1125, 50); grpBox_1.Location = new System.Drawing.Point(0, iGroupYLocation); grpBox_1.Margin = new System.Windows.Forms.Padding(10); grpBox_1.Name = strNewGroupName; grpBox_1.Size = new System.Drawing.Size(1125, 50); grpBox_1.TabIndex = 0; grpBox_1.Text = strNewGroupName; grpBox_1.Visible = true; grpBox_1.Expanded = false; // // ultraExpandableGroupBoxPanel1 // ultraExpandableGroupBoxPanel_1.Dock = System.Windows.Forms.DockStyle.Fill; ultraExpandableGroupBoxPanel_1.Location = new System.Drawing.Point(3, 20); ultraExpandableGroupBoxPanel_1.Name = strNewGroupName + “_ExpandableGroupBoxPanel1”; ultraExpandableGroupBoxPanel_1.Size = new System.Drawing.Size(1119, 27); ultraExpandableGroupBoxPanel_1.TabIndex = 0; ultraExpandableGroupBoxPanel_1.Visible = true;

and I add a simple text box to the Group Box with:

// Build a TextBox TextBox txtBox = new TextBox { Name = “TestTextBox” }; txtBox.Font = new System.Drawing.Font(“Segoe UI”, 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0))); txtBox.Location = new System.Drawing.Point(20, iChildControlYPosition); txtBox.Name = “gp” + iGroupIndex + “_txtbox” + iChildIndex; txtBox.Size = new System.Drawing.Size(68, 22); txtBox.TabIndex = 1; txtBox.Text = “Testing text”; txtBox.Visible = true;

grpBox_1.Panel.Controls.Add(txtBox);

Here is a pic of the output:

Notice the empty panel? No Text Boxes are displayed!

Any ideas?

Michael,

The Ultra Expandable Group Box itself is being created at run-time.  My code looks like this: (Note, this is the code Visual Studio created in its designer…)

UltraExpandableGroupBox grpBox_1 = new UltraExpandableGroupBox(); UltraExpandableGroupBoxPanel ultraExpandableGroupBoxPanel_1 = new UltraExpandableGroupBoxPanel();

// // grpBox_1 // grpBox_1.Controls.Add(ultraExpandableGroupBoxPanel_1); grpBox_1.Dock = System.Windows.Forms.DockStyle.Top; grpBox_1.ExpandedSize = new System.Drawing.Size(1125, 50); grpBox_1.Location = new System.Drawing.Point(0, iGroupYLocation); grpBox_1.Margin = new System.Windows.Forms.Padding(10); grpBox_1.Name = strNewGroupName; grpBox_1.Size = new System.Drawing.Size(1125, 50); grpBox_1.TabIndex = 0; grpBox_1.Text = strNewGroupName; grpBox_1.Visible = true; grpBox_1.Expanded = false; // // ultraExpandableGroupBoxPanel1 // ultraExpandableGroupBoxPanel_1.Dock = System.Windows.Forms.DockStyle.Fill; ultraExpandableGroupBoxPanel_1.Location = new System.Drawing.Point(3, 20); ultraExpandableGroupBoxPanel_1.Name = strNewGroupName + “_ExpandableGroupBoxPanel1”; ultraExpandableGroupBoxPanel_1.Size = new System.Drawing.Size(1119, 27); ultraExpandableGroupBoxPanel_1.TabIndex = 0; ultraExpandableGroupBoxPanel_1.Visible = true;

When it’s time to add my control, I’m simply:

grpBox_1.Panel.Controls.Add(gp1_lblLastEditedDate1);

As you can see, the Group Boxes are empty…

Any ideas?