Bug in TableLayoutPanel

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Timothy V - 27 Feb 2006 05:17 GMT

Hi all,
I don't usually post possible bugs because I would assume that there are
none. However, some of the properties are not acting acting as they should.

Here is what I have found. When using the AutoSize property set to "true",
and the GrowStyle property set to "AddColumns" or "AddRows" (default). You
add a control (such as a button) with:
this.tableLayoutPanel1.Controls.Add(new Button());

What this does is add the button to newly made cell (a cell in a new row if
"GrowStyle=AddRows" OR in a new column if "GrowStyle=AddColumns").

Lets add about 5 of these buttons. When we call:
this.tableLayoutPanel1.ColumnStyles.Count;
we should get an int that has 5 in it, right? Wrong. It is 0 (zero).

Am I using this wrong? Because strange enough, the controls are showing up
when I run the application.

I would be very interested in some comments on this.

Thanks all,
Tim.

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CAnderson [MVP] - 01 Mar 2006 22:36 GMT

Are you looking to get the number of columns? Or the number of
columnStyles... which is what you are getting. Concidering that no
columnStyles have been added, only columns, I would expect ColumnStyles.Count
to return 0.

-CA

> Hi all,
> I don't usually post possible bugs because I would assume that there are
[quoted text clipped - 19 lines]
> Thanks all,
> Tim.

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Timothy V - 02 Mar 2006 04:14 GMT

Thanks for your response... Your explaination sounds pretty much on the
ball. I have changed my column adding code to:
int i = tablelayoutpanel.ColumnStyles.Add(new ColumnStyle(SizeType.Percent,
50.0F));
tlp.Controls.Add(c, i, 0);

This now works fine with ColumnStyles.Count, giving the correct answer.
HOWEVER, I can't seem to get ColumnStyles.RemoveAt() to work.

From what you said previously, and from my understanding now, it is removing
the ColumnStyle, not the Column. How do I remove a column?

Thanks in advance,
Tim.

> Are you looking to get the number of columns? Or the number of
> columnStyles... which is what you are getting. Concidering that no
[quoted text clipped - 32 lines]
>> Thanks all,
>> Tim.

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Bug in TableLayoutPanel

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