C# Direct3D Question - C# Discussion Boards

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Re: Error 170:In correct Syntax- SQL Server and C#

Ian McCaul14-May-09 8:28

Ian McCaul

14-May-09 8:28

You have to set your command object to stored proc type. i.e.

After this line
SqlCommand comm=new SqlCommand("create_journal_entry",conn);

Type this
comm.CommandType = CommandType.StoredProcedure

The default is text so it is reading 'create_journal_entry' as your query.

Re: Error 170:In correct Syntax- SQL Server and C#

SilimSayo14-May-09 8:47

SilimSayo

14-May-09 8:47

Thanks a batch! It worked right away......just wondering why the heck I could not see that. Feels like Friday.

Monitor a text file to see when it opens or closes...

Engineer Joe14-May-09 7:48

Engineer Joe

14-May-09 7:48

I'd like to monitor a text file to see when an outside program changes the contents of it. Is there a simple way to do this??? Actually, the easiest way to do this for me might be to see when the it saves or closes.

Re: Monitor a text file to see when it opens or closes...

DaveyM6914-May-09 7:59

DaveyM69

14-May-09 7:59

The FileSystemWatcher[^] maybe what you need, especialy the NotifyFilter[^] property (NotifyFilters enumeration[^]).

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)
Why are you using VB6? Do you hate yourself? (Christian Graus)

Re: Monitor a text file to see when it opens or closes...

Baeltazor14-May-09 8:04

Baeltazor

14-May-09 8:04

You could check out FileSystemWatcher.. I can't remember if it'll tell you if the file's been opened or closed but it does let you know when a file has been changed, created, deleted etc... You can find it inside your ToolBox in Visual Studio

jay

Re: Monitor a text file to see when it opens or closes...

Engineer Joe14-May-09 8:12

Engineer Joe

14-May-09 8:12

Good deal. thank you both. I'm trying to make a PDF buttonclick event register in my code, but apparently this is very hard to do... So i decided to make the buttonclick in the PDF open and change a document. Then my C# app will hopefully see it and respond...worth a try any way. Thanks again.

jpc

Re: Monitor a text file to see when it opens or closes...

DaveyM6914-May-09 8:25

DaveyM69

14-May-09 8:25

According to this thread[^] it is possible if you're using Acrobat (not reader) with a little Java.

C# Direct3D Question

will kirkby14-May-09 7:30

will kirkby

14-May-09 7:30

I have a simple scene in Direct3D in c#, but i am having trouble getting it to draw objects in the right order:
Image 1
Image 2 (Wrongness)

device.Clear(ClearFlags.Target, Color.Black, 1.0f, 0);<br />
            device.BeginScene();<br />
            device.VertexFormat = CustomVertex.PositionTextured.Format;<br />
<br />
            //SET TEXTURE AND DRAW FLOOR<br />
            LoadTexturesAndMaterials("TexFloor.png");<br />
            device.SetTexture(0, texture);<br />
            device.DrawUserPrimitives(PrimitiveType.TriangleList, 8, Floor);<br />
<br />
            //DRAW A PILLAR<br />
            LoadTexturesAndMaterials("TexPillar.png");<br />
            device.SetTexture(0, texture);<br />
            device.DrawUserPrimitives(PrimitiveType.TriangleList, 16, MakePillar(new Vector3(fb, 0, 0), 4, 0.2f));<br />
            device.DrawUserPrimitives(PrimitiveType.TriangleList, 16, MakePillar(new Vector3(-fb, 0, 0), 4, 0.2f));<br />
            device.DrawUserPrimitives(PrimitiveType.TriangleList, 16, MakePillar(new Vector3(0, 0, -fb), 4, 0.2f));<br />
            <br />
            //DRAW CRYSTAL<br />
            LoadTexturesAndMaterials("TexCrystal.png");<br />
            device.SetTexture(0, texture);<br />
            device.DrawUserPrimitives(PrimitiveType.TriangleList, 32, Crystal);<br />
<br />
            device.EndScene();<br />
            device.Present();<br />
            Graphics g = this.CreateGraphics();<br />
            g.DrawString("HUD Test", this.Font, Brushes.Red, new PointF(20, 20));<br />
            this.Invalidate();<br />

Re: C# Direct3D Question

Anthony Mushrow14-May-09 14:01

Anthony Mushrow

14-May-09 14:01

You just need to use the depth buffer, otherwise whatever is drawn last will be on top. A quick search found me this:

http://www.riemers.net/eng/Tutorials/DirectX/Csharp/Series1/tut11.php[^]

About half way down it mentions activating the z-buffer, its all you should need to do.

My current favourite word is: Delicious!

-SK Genius

Game Programming articles start -here[^]-

Custom Control

jammmie99914-May-09 7:11

jammmie999

14-May-09 7:11

Hi guys I am making a custom control/user control.

How make mycontrol.dosomething(); fire an event
and How do I handle event handlers

Thanks

Re: Custom Control

DaveyM6914-May-09 7:26

DaveyM69

14-May-09 7:26

public class MyControl : Control
{
    public event EventHandler DoingSomething;

    public void DoSomething()
    {
        OnDoingSomething(EventArgs.Empty);
    }

    protected virtual void OnDoingSomething(EventArgs e)
    {
        EventHandler eh = DoingSomething;
        if(eh != null)
            eh(this, e);
    }
}

The event handler for this event can be done in the same way as any other control.
See my Events Made Simple[^] article for more info including custom event args etc.

Re: Custom Control

jammmie99914-May-09 8:37

jammmie999

14-May-09 8:37

Thank you

datagrid add column

michaelgr114-May-09 6:42

michaelgr1

14-May-09 6:42

Hello,
I have an application with datagrid that takes the information from database (bindingsource).
I have a refresh button to refresh the datagrids.
I want to make a button that the user will write which column from the DB he wants to add to the datagrid to see it's data.
How can i add programaticly new column that will be bound to this database?

Problem to workflow

hdv21214-May-09 6:29

hdv212

14-May-09 6:29

Hi sorry for post in this forum, because i Posted a message in this link[^] about workflow management standards in .net but noBody replied yet, hence i post again in this forum (and give a link for main question) to find out solution, It's very emergency.
Thanks

Re: Problem to workflow

DaveyM6914-May-09 9:06

DaveyM69

14-May-09 9:06

hdv212 wrote:
It's very emergency

Looking at your profile: With your Silver membership, nearly 600 messages posted and almost 4 years as a member, you really should know better! It might be a good time to google for a flame suit[^].

Re: Problem to workflow

hdv21214-May-09 9:37

hdv212

14-May-09 9:37

Hi DaveyM69
thanks for reply, but what's flame suit ?
does have relation with workflow ?

Tab to previous control not working.

lastdays14-May-09 6:22

lastdays

14-May-09 6:22

I have multiple instances of a custom control on a form. I created the control. I am able to use the Tab key to tab to the next control in the order but the Shift+Tab key will not tab to the previous control. The Shift+Tab key also causes the tab to the next control. I also have a couple of Buttons on the form. The Shift+Tab key functions correctly when the buttons have the focus. Can someone suggest why the Shift+Tab key will not shift focus to the previous control when my control has focus?
thanks

UserControls [modified]

densher14-May-09 5:51

densher

14-May-09 5:51

I am for the first time attempting to write a usercontrol for distribution. The control has an image window and a datagrid. My problem comes in trying to register the control for use in applications. I have been lost in the MSDN trying to get the code necessary to register this thing for use as a dll which can be drawn on your form like other windows controls. Does anyone have a template or a project similar that could guide me?

Densher

modified on Thursday, May 14, 2009 12:00 PM

Re: UserControls

Eddy Vluggen14-May-09 6:22

Eddy Vluggen

14-May-09 6:22

I got a question first; do you want to make your code available for use in the .NET languages, or do you want to make the code available to 'most' languages (including, but not limited to .NET)?

For the first option, registering would be enough (regasm). For the second option you'd need to make an ActiveX control out of it (regsvr32).

I are troll Smile | :)

Re: UserControls

densher14-May-09 7:19

densher

14-May-09 7:19

Basically, the control would target applications using VS 2005 and up including .Net as the development platform. I simply wish to enable the coder to draw the control on their form and interact as we did with the old OCX.

Densher

Re: UserControls

Eddy Vluggen14-May-09 8:15

Eddy Vluggen

14-May-09 8:15

The user can right-click on the toolbox and add a reference to your assembly by selecting the DLL. You can register the assembly using regasm if you want it to show up in the list of possible .NET references.

I are troll Smile | :)

Re: UserControls

densher14-May-09 8:35

densher

14-May-09 8:35

I believe you have mis-understood or I have mis-stated my need. I actually get the DLL to register with RegAsm. When I try to draw it on a form I get the error 80040154, CLSID not properly registered. Regasm reported completion successfully. From what I have been able to glean from the MSDN, I need some assembly statements for Interop and Enterprise Services and and possibly an interface. I need to know the structure of those code statements. Thanks for your time on this issue.

Densher

Send a struct to external DLL

Ronenb14-May-09 5:47

Ronenb

14-May-09 5:47

Hi All
I have a project in C# that I need to import C++ dll
In order to import it I’m using
[DllImport("CommunicationManagerDLL.dll")]
private static extern bool WiMAXGetState(ref eNDIS_802_16E_STATE NDIS_802_16E_STATE);

how can I send a pointer to struct to the dll ?
should I use ref?

Thanks
Ronen

Re: Send a struct to external DLL

DaveyM6914-May-09 7:32

DaveyM69

14-May-09 7:32

This should work if you're struct is correct.

eNDIS_802_16E_STATE NDIS_802_16E_STATE interopStruct = new eNDIS_802_16E_STATE NDIS_802_16E_STATE();
bool result = WiMAXGetState(ref interopStruct);

Re: Send a struct to external DLL

Luc Pattyn14-May-09 8:17

Luc Pattyn

14-May-09 8:17

That looks fine for simple structs, holding value types only, except maybe for padding and different semantics (long and char). And it could go terribly wrong when the struct holds reference types or pointers.

Smile | :)

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