Re: CreateInstance problem - C# Discussion Boards

Why I'm not getting Vista style on my listViews?

AngryC23-Apr-07 23:05

23-Apr-07 23:05

Hello,

I'm developping using VS.NET/.NET 2.0 and my listView does not have the effects available on Vista listView.

Please help me with this.

Thanks.

BindingSource question, help me

phantanagu23-Apr-07 22:43

phantanagu

23-Apr-07 22:43

Hi,
I want to filter the productID that starts with "MDF", so I use
bindingsource1.filter = "productID like 'MDF%'" (look like sql query), but it's not working.
Somebody could correct the code will be appreciated.
Thanks in advance.

It seem to be a solution or an answer.

Re: BindingSource question, help me

Keshav V. Kamat24-Apr-07 1:37

Keshav V. Kamat

24-Apr-07 1:37

Do you want a sql query for this?

if so then here it is

select fieldNames/* from tableName where productID like 'MDF%';

This would select all/several fields from the table name where the productID begins with MDF%

You can use connection/command/dataReader accordingly depending upon the database you are using.

Keshav Kamat Smile | :)

India

Re: BindingSource question, help me

phantanagu24-Apr-07 15:53

phantanagu

24-Apr-07 15:53

It will be OK if I use sql query to filter the productID begins with MDF.
But, what I need is bindingsource1.filter = "productID like 'MDF%'" is correct or not ? I mean that "productID like 'MDF%'" string is correct or not. If not, How must I make it correct ?

It seem to be a solution or an answer.

Re: BindingSource question, help me

K Vikas24-Apr-07 1:49

K Vikas

24-Apr-07 1:49

It is working on my system. Hope that u r resetting the datasource of DataGridView after applying the filter on bindingsource1.

CreateInstance problem

Tavbi23-Apr-07 22:33

Tavbi

23-Apr-07 22:33

Hi,
can I with CreateInstance create instance of form that requires parameters?

Example:

frmShopGood frmTemp = new frmShopGood(new DSBasis());

I tried this, but what can I do with parameter "new DSBasis()"
Form myForm = (Form)Activator.CreateInstance(Type.GetType(formName));

Thanks, Jure

Re: CreateInstance problem

Colin Angus Mackay23-Apr-07 23:40

Colin Angus Mackay

23-Apr-07 23:40

Tavbi wrote:
can I with CreateInstance create instance of form that requires parameters?

Have you read the documentation for CreateInstance[^]?

Perhaps this[^] will help.

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Re: CreateInstance problem

Tavbi24-Apr-07 2:59

Tavbi

24-Apr-07 2:59

I read, but I still have problem.

Can you give me solution for my example, please?

thanks

Re: CreateInstance problem

Colin Angus Mackay24-Apr-07 7:45

Colin Angus Mackay

24-Apr-07 7:45

Something like this:

Type type = Type.GetType("MyNamespace.MyFormName");
object[] args = new object[1];
args[0] = new DSBasis();
Activator.CreateInstance(type, args);

Re: CreateInstance problem

Tavbi24-Apr-07 20:52

Tavbi

24-Apr-07 20:52

Thank you Colin, it works.

ActiveX Control cannot be instantiated

Rahul_h23-Apr-07 22:20

Rahul_h

23-Apr-07 22:20

Hi all,

After converting application from C#.net 2003 to C#.net 2005 the following error comes.

ActiveX control '6bf52a52-394a-11d3-b153-00c04f79faa6' cannot be instantiated because the current thread is not in a single-threaded apartment.

pls. suggest solution
Thanks.

how to make licence key in Set up project

Sanjib Raj23-Apr-07 22:20

Sanjib Raj

23-Apr-07 22:20

i have Setup of Project. i want to make a licence key after installing the Setup project. After giving the right licence key, then project or exe file should Start. I have no idea about that. please give me some ideas.

thanks.

Sanjit.rajbanshi@wlinktech.com

How To Free Memeory of COM object

Chetan Patel23-Apr-07 22:02

Chetan Patel

23-Apr-07 22:02

I Have a problem of memory leakage.
and i m using COM objects in the page which will not free memory.
so How To Free Memeory of COM object?

Best Regards,
Chetan Patel

Re: How To Free Memeory of COM object

sthotakura23-Apr-07 22:18

sthotakura

23-Apr-07 22:18

Release it.
Make the object NULL.

Cheers,
Suresh

Re: How To Free Memeory of COM object

patelchetanr23-Apr-07 23:44

patelchetanr

23-Apr-07 23:44

I have already try that but still i found problem of memory leak.
please give me another solution.

Re: How To Free Memeory of COM object

GDavy24-Apr-07 0:32

GDavy

24-Apr-07 0:32

maybe a bit of a hardcore solution, but you could instantiate your COM object in a separate application domain and when you don't need the COM object anymore drop the application domain, that should take care of the memory issue I think...

Greets,
Davy

Re: How To Free Memeory of COM object

Jimmanuel24-Apr-07 8:13

Jimmanuel

24-Apr-07 8:13

Have you tried this:

System.Runtime.InteropServices.Marshal.ReleaseComObject(yourObject);

before you set your COM object to null?

RichTextBox Right Click

Saikek23-Apr-07 21:25

Saikek

23-Apr-07 21:25

Hello!!!!
I'm working with RichTextBox.
How can i make that if i push right button, the text (or only 1 position), that is under my cursor became Selected ? (as if i press left button ?).

One nation - underground

Re: RichTextBox Right Click

Keshav V. Kamat24-Apr-07 1:00

Keshav V. Kamat

24-Apr-07 1:00

check the key event.

Keshav Kamat Smile | :)

India

[Message Deleted]

7123-Apr-07 20:58

23-Apr-07 20:58

[Message Deleted]

Re: MaskedTextBox

manasram23-Apr-07 21:26

manasram

23-Apr-07 21:26

HELLO, PRASAD.
this might be happenin because of the location of mouse.

you can use datagrid paint method and in that you have to write

MaskedTextBox Ma=new MaskedTextBox("0.0.0.0");
Ma.Top=grdPrescription.GetCurrentCellBounds().Top;
Ma.Left=grdPrescription.GetCurrentCellBounds().Left;
Ma.Width=grdPrescription.GetCurrentCellBounds().Width;
Ma.Height=grdPrescription.GetCurrentCellBounds().Height;
...

manas

Re: MaskedTextBox

manasram23-Apr-07 22:15

manasram

23-Apr-07 22:15

i was just trying to solve it in my application.
dont worry abt "grdPrescription", its the name of the datagrid.

manas

Re: MaskedTextBox

Patrick Etc.24-Apr-07 7:18

Patrick Etc.

24-Apr-07 7:18

Ew.

Instead of magically showing a masked text box over the cell that has been clicked, you may consider actually creating a masked text box CELL -

This requires creating a column and corresponding cell of your specific control type.

Here is a great tutorial on how to do this, I have used it to create several custom column and cell types:

http://msdn2.microsoft.com/en-us/library/aa730881(vs.80).aspx[^]

Yes, it is more work, but you get 3 things for free:

1. The grid will automatically show the control in the correct place.
2. The control can be databound, meaning it takes care of all the data transactions for you
3. It keeps your business code simpler by not involving the management of temporary text boxes.

------------
Cheers,
Patrick

Menus at run time [modified]

a_david12323-Apr-07 20:51

a_david123

23-Apr-07 20:51

Dear All

I am working on a drawing application using OpenGl and C#. I want to use the whole form as Drawing area, i have added menus to my application but these menus does not show at run time, help required
thanks

David

-- modified at 4:48 Tuesday 24th April, 2007

david

Extract ClassName using Regular Expression

nasambur23-Apr-07 20:25

nasambur

23-Apr-07 20:25

hi,

i want to extract only the class names from a C# file..
i have a pattern like this..

pattern: "\\s*(namespace|class)[^{]*"

but it gives matches along with the namespace and class keyword..

i want a pattern that can extract only class|namespace names from
the lines that are not commented in the source code..

plz help.

regards,
nas

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