Re: Hiding a TabPage - C# Discussion Boards

A question of form, and size...

15-Mar-03 21:22

Make sure to provide the MDAC redistribuable[^] as well.

If you use a particular .NET driver, you might also have to redistribute the corresponding assemblies. If you are using .NET 1.0, more info here[^] (ODBC .NET data provider). Those drivers are now part of the .NET 1.1 run-time (but it's still in beta).

Antoine Dubuc15-Mar-03 17:40

Antoine Dubuc

15-Mar-03 17:40

Of course, this has happened to you... Poke tongue | ;-P

You had a control, like a MediaPlayer, on your form.
You had it full-sized into a panel, which was not docked
-but anchored in a properly useful way, say 'Top-Left'.
Andi The form loads with the MediaPlayer. Each has its own
size fetched (from last time) from the registry.

So far so good.
The problem start when you resize the form.

You figured that: when the form has loaded the user will
resize the form to his convenience, and load a movie.
That is the user's sole function. Wink | ;)

...And...
(The MediaPlayer, ...'Full'y docked into its panel...
will be well-sized with the resized form.)

*Wrong!* (Herein the Jeopardy buzz..)

The MediaPlayer, being docked 'full' into the panel,
is supposed to stretch along the panel as the form is
resized by the user. This seems normal.

Actually, when the user resize the form, the panel is
resized but the MediaPlayer it contains is not resized
along. The MediaPlayer keeps it loaded size even though
its container(the panel) and the form have been resized.

And my question is: 'Why?' -and how can I fix it!!!

Thanks,

Antoine

'Use obstacles as stepping stone' Orison Sweet Marden

Re: A question of form, and size...

Stephane Rodriguez.15-Mar-03 20:53

15-Mar-03 20:53

It works for me. I have Windows Media player 6.4 (W2K) :
- create a new windows form app
- insert a panel
- change panel anchor settings to add right and bottom anchors
- insert the media player right inside the panel
- change media player dock settings to "Fill"

Hiding a TabPage

monrobot1315-Mar-03 16:54

monrobot13

15-Mar-03 16:54

Is it possible to hide a TabPage? I've tried setting the visible property to false and using the Hide () method but neither seems to hide the page. Is this even possible?

Thanks

Stephane Rodriguez.15-Mar-03 21:12

15-Mar-03 21:12

In .NET 1.0, setting the TabPage visible property to false does not change things much. The easiest way to do so is (even if that's a bit lousy) to remove the tabPage item from the TabPages collection.

monrobot1316-Mar-03 11:45

monrobot13

16-Mar-03 11:45

.S.Rod. wrote:
The easiest way to do so is (even if that's a bit lousy) to remove the tabPage item from the TabPages collection

If I do this will it destroy the page? I need to be able to add the page back after it's removed and the page isn't created dynamically it's been created in the designer. So if I hide the page this way will I be able to get it back during the life of the application or is it gone until a restart of the program?

Thanks again!

Nathan Blomquist16-Mar-03 14:00

Nathan Blomquist

16-Mar-03 14:00

monrobot13 wrote:
If I do this will it destroy the page?

Not if you first save it off to member variable of the form, so that you can then just re-add the page to the collection.

// Set some member variable to the TabPage to save<br />
m_Tp = tabControl1.TabPages[i];<br />
<br />
// This removing does not destroy the page...<br />
tabControl1.TabPages.Remove(m_Tp);<br />
<br />
// ... do some stuff ...<br />
<br />
// Re-add the page<br />
tabControl.TabPages.Add(m_Tp);

You might have to see how to change the order of the tabs back to the way you had them though. I don't know off hand how to do it.

Hope this helps,
Nathan

---------------------------
Hmmm... what's a signature?

New guid as default value in column

monrobot1317-Mar-03 4:53

monrobot13

17-Mar-03 4:53

I think this will work nicely.

Thanks again all.

- monrobot13

..Hubert..15-Mar-03 14:27

..Hubert..

15-Mar-03 14:27

Most of my tables has GUIDs as PrimaryKeys. So when I create new row in any table, i need to generate new guid and use it as ID. Is there simplier method?
thanks
h.

databinding and controls

..Hubert..15-Mar-03 14:10

..Hubert..

15-Mar-03 14:10

I have two controls on a form - checkBox1 and textBox1.
When user "checks" checkBox1, textBox1 becomes visible. Looks pretty simple Blush | :O

)
1. without databinding:
textBox1.visible=checkBox1.checked
This works great.
2. let's play with some data in dataset:
I have bound "Checked" property of checkBox1 to a field in DataSet/DataTable. This field is also bounded to textBox1.visible property.
Result:
checkBox1 needs to lost focus to update data in dataTable, so user needs to "check" and next click into some other control.
What should i do to make it working properly (immediately)?
thanks
h.
btw: I have also tryed to force focus changes on the form (this.select(...)). The checkBox needed 2 mouse clicks to synchronize its state with dataset and since then, everything was fine Blush | :O

)

Re: databinding and controls

leppie15-Mar-03 20:27

leppie

15-Mar-03 20:27

This has popped up several times this week. It is rather annoying (not u, the problem Smile | :)

)

You will need to do something like this depending on your databinding:

control.DataBindings[0].BindingManagerBase.EndCurrentEdit();

I rated this article 2 by mistake. It deserves more. I wanted to get to the second page... - vjedlicka 3:33 25 Nov '02

Re: databinding and controls

..Hubert..16-Mar-03 11:34

..Hubert..

16-Mar-03 11:34

You're right two times in one answer:
1. This problem is REALLY annoying. Blush | :O

)
2. This method works well - I have tested 3 different binding modes. There is just one small thing - it needs two more clicks on checkbox to "synchronize". Should I open the row for editing? I have tried to use BeginEdit() method on current row, but there was no difference. I think, that may be a point, but have no idea how to solve it.
Thanks for help
h.

strong type in XML

Michal Januszczyk15-Mar-03 5:52

Michal Januszczyk

15-Mar-03 5:52

how to do the following using .NET

I have the following XML document :

3.14159

If I were using COM MSXML parser, I could get
NodeTypedValue property to get "strongly-typed"
value.

b= XMLDocument.SelectSingleNode("//b");
variant value = b.NodeTypedValue;
//now the variant contains double value.

The question is:
how to achieve the same using C# ?
Value property of XMLNode object returns String
type, wchich i have to convert to get desired type...
How to do this without explicit conversion (by the means
of XMLConvert class or similar...)

Thanks
Michal Januszczyk

Re: strong type in XML

Stephane Rodriguez.15-Mar-03 6:52

15-Mar-03 6:52

May be that's me but I believe that even with MSXML you are supposed to have a separate schema (with attributes of the form dt:type="int") to define node data types.
May be for usability reasons MS indeed allowed to put dt:type attributes along with Xml elements, but that of course didn't apply to define attribute data types since an attribute can hardly be data typed by another attribute.

It's not lost with the .NET Xml parser, just made different. The Xml schema has its own namespace and has the equivalent API you referred to, scattered in this namespace. For instance, System.Xml.Schema.XmlSchemaDatatype.ParseValue().

PS : the .NET Xml parser is not a wrapper of the MSXML parser, which is a very good design decision. (at least something that stands for itself in this .NET run-time).

Re: strong type in XML

Jeff J15-Mar-03 10:10

Jeff J

15-Mar-03 10:10

.S.Rod. wrote:
...(at least something that stands for itself in this .NET run-time).

Why Stephane, I haven't noticed your using that "smiley" before. Wink | ;)

If I didn't know better, I'd say you are among those of us who have been wrestling with the insanity of the software industry for so long...

"Few are those who see with their own eyes and feel with their own hearts." - A. Einstein

Re: strong type in XML

Stephane Rodriguez.15-Mar-03 11:17

15-Mar-03 11:17

A last funny pic before tonight's hunting,

Starting Process problem

Mazdak15-Mar-03 5:41

Mazdak

15-Mar-03 5:41

I have to an applicatin that in part of it,it shows .zip files.In windows xp when I right click on zip files,I can choose EXTRACT ALL... option and unzip files.I want when I double click on zip files in my program it extract files,So I think I shoul use Procees.Start() and ProcessStartInfo.By default it only open .zip file with windows explorer so I have to set ProcessStartInfo.Verb property,but I don't know the action.I pass EXTRACT or EXTRACT ALL,and somethings like that but it always thrown exception.Does anybody know how can I find the these Verbs name or any idea about this problem?

Mazy

"And the carpet needs a haircut, and the spotlight looks like a prison break
And the telephone's out of cigarettes, and the balcony is on the make
And the piano has been drinking, the piano has been drinking...not me...not me-Tom Waits

Stephane Rodriguez.15-Mar-03 6:31

15-Mar-03 6:31

I am afraid you are facing a shell extension handler. Exposed functions are called by Windows Explorer on the basis of registered components (see HKCR\.zip and HKCR\Directory\ShellEx for entry points), and use COM plumbering, not the command line.

Mazdak15-Mar-03 9:33

Mazdak

15-Mar-03 9:33

Thanks for reply.

.S.Rod. wrote:
COM plumbering, not the command line.

Could you please give me more details?What is COM plumbering?You mean using ShellExecute() function?

Mazy

"And the carpet needs a haircut, and the spotlight looks like a prison break
And the telephone's out of cigarettes, and the balcony is on the make
And the piano has been drinking, the piano has been drinking...not me...not me-Tom Waits

Stephane Rodriguez.15-Mar-03 11:10

15-Mar-03 11:10

An insight[^] on COM plumbering for this particular Winzip case.

Adding a site to 'Trusted Sites' Zone Automatically

Mazdak15-Mar-03 18:18

Mazdak

15-Mar-03 18:18

Thanks.

Mazy

"And the carpet needs a haircut, and the spotlight looks like a prison break
And the telephone's out of cigarettes, and the balcony is on the make
And the piano has been drinking, the piano has been drinking...not me...not me-Tom Waits

Vasudevan Deepak Kumar15-Mar-03 2:09

Vasudevan Deepak Kumar

15-Mar-03 2:09

Hi
I am running a small ActiveX Control (.NET UserControl exposed as ActiveX), connecting back to host server. This is an intranet application. And this ACtiveX Control refuses to connect back to host server, unless, I add it to 'Trusted Sites' Zone.

How to add the site automatically to Trusted Sites zone. I a have seen this with GotDotNet Workspace VSS-Like Control MSI Installation. Is'nt it?

Deepak Kumar Vasudevan
http://deepak.portland.co.uk/

Re: Adding a site to 'Trusted Sites' Zone Automatically

Stephane Rodriguez.15-Mar-03 2:44