Re: Latebinding a VB6 DLL in a C# Project (with an interface?) - C# Discussion Boards

musefan4-Sep-09 3:08

4-Sep-09 3:08

Yeah use StreamReader.BaseStream.ReadByte() that will give you a byte which you can convert to a char or hex value or int or whatever you want

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Re: Read file with hex characters

Luc Pattyn4-Sep-09 3:55

Luc Pattyn

4-Sep-09 3:55

NO

if you want to treat the file content as binary data, then you should not use anything related to characters, strings or StreamReaders, so File.OpenText() is of limits, use File.OpenRead() instead; that returns a FileStream which has Read and ReadByte methods.

Your Notepad link clearly proves the data isn't text I would say.

BTW: your question is not related to hex at all, the data is non-textual or binary, which you could show in hex format (as the left half of your hex editor does) but that is just a way of looking at it, it is not what is in there.

Smile | :)

Luc Pattyn

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Re: Read file with hex characters

khalidelmeknesi5-Sep-09 0:43

khalidelmeknesi

5-Sep-09 0:43

Can I find somewhere an example? I have searched on the internet but didnt find a simple example code.

Re: Read file with hex characters

Luc Pattyn5-Sep-09 1:01

Luc Pattyn

5-Sep-09 1:01

The documentation[^] contains an example.

Confused | :confused:

Luc Pattyn

Have a look at my entry for the lean-and-mean competition; please provide comments, feedback, discussion, and don’t forget to vote for it! Thank you.

Latebinding a VB6 DLL in a C# Project (with an interface?)

MatthysDT4-Sep-09 2:56

MatthysDT

4-Sep-09 2:56

Good day!

I am finally rewriting an 10 year old device-communication application in .Net. The original program uses a series of VB6 DLL's (also developed by me) to connect with all the different devices.

There are about 20 or so DLL's most of them rather unique and it would be an extremely cumbersome task to re-write all of them in .Net.

I want to create an Interface and make the DLL's conform to that.
When I try adding my DLL's in .Net it wants assembly data, which I don't have.

What is the easiest way of exposing a such a DLL's methods?

And how would I go about using an Interface to define the classes from the DLL's? (I will modify the DLL's to expose the correct methods).

Doggy treat[^]

Re: Latebinding a VB6 DLL in a C# Project (with an interface?)

stancrm4-Sep-09 3:08

stancrm

4-Sep-09 3:08

http://www.vb-helper.com/howto_net_use_vb6_dll.html[^]

Re: Latebinding a VB6 DLL in a C# Project (with an interface?)

MatthysDT4-Sep-09 3:25

MatthysDT

4-Sep-09 3:25

You must have missed the part where I said LATEBINDING.
But thanks anyway.

Doggy treat[^]

Re: Latebinding a VB6 DLL in a C# Project (with an interface?)

Pete O'Hanlon4-Sep-09 3:46

Pete O'Hanlon

4-Sep-09 3:46

If you want to perform late binding, you need to follow the following steps. You need to use Type.GetTypeFromProgID to retrieve the type from program ID that you want to work with, e.g. Word.Application. Create the object using Activator.CreateInstance and then use calls like InvokeMember to invoke methods in the DLL.

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Re: Latebinding a VB6 DLL in a C# Project (with an interface?)

MatthysDT22-Sep-09 1:57

MatthysDT

22-Sep-09 1:57

Pete O'Hanlon wrote:
If you want to perform late binding, you need to follow the following steps. You need to use Type.GetTypeFromProgID to retrieve the type from program ID that you want to work with, e.g. Word.Application.

Hi Pete

My apologies for only replying now.

I think my problem is that there exists no such Program ID on the system, according to what I've read in Microsoft's documentation, there is a registry entry for every valid program ID. My application however, retrieves the DLL file from a DB (in a BLOB field), saves it on the HDD and then attempts to work with it.
That last bit is where I'm stuck. Do I need to register the DLL with the system in order for it to be a valid ProgramID? And furthermore, I see that the programID always conforms to {Application}.{Class} or so it seems, I'm not even sure what my DLL's programID will be even if I do manage to use it in this manner.

I'd appreciate any help you may be able to provide.

Kind Regards!

Doggy treat[^]

Re: Latebinding a VB6 DLL in a C# Project (with an interface?)

Paw Jershauge4-Sep-09 4:35

Paw Jershauge

4-Sep-09 4:35

As VB6 is not a multithreaded envioment i would recommend rewriting them all, because if you still use em, and its been 10 years since you developered them, then optimizing would be the key word here. and the vb engine is very slow, and not really up to the task in new envioments...

Just my opinion... i know its alot of work, by just take your time ;o)

Laugh | :laugh:

With great code, comes great complexity, so keep it simple stupid... $Shucks | :-\$ $Shucks | :-\$

Document class in C#

ChrisSuper4-Sep-09 2:51

ChrisSuper

4-Sep-09 2:51

Hi experts,

I am looking for code to generate thumbnail for the first page of Microsoft Office document (such as word,excel) and PDF. I found sth like this in MSDN and tried it, however, what is the missing reference for "Doc" as in the first line. What reference should I use for the "Doc"?

InlineShapes shapes = Doc.InlineShapes;  
                int i = 0;  
                foreach (InlineShape shape in shapes)  
                {  
                     if (shape.Type == WdInlineShapeType.wdInlineShapePicture)  
                    {  
                        shape.Select();  
                        shape.Application.Selection.CopyAsPicture();  
 
                        IDataObject data = Clipboard.GetDataObject();  
 
                        if (data.GetDataPresent(DataFormats.Bitmap))  
                        {  
                            Image image = (Image)data.GetData(DataFormats.Bitmap, true);  
                            image.Save("c:\\111.bmp"), System.Drawing.Imaging.ImageFormat.Bmp);  
                        }  
                    }  
                }

Could anybody kindly help me with this? Will this code do the job or you guys have better solutions? Thank you very much.

Chris

Re: Document class in C#

EliottA4-Sep-09 3:21

EliottA

4-Sep-09 3:21

this[^] might help you out, I think it's in the Microsoft Word 11.0 Object Library (you might want to Google for Microsoft Office Primary Interop Assemblies).

Check out the CodeProject forum Guidelines[^]
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How should a Fresher start a Real Time Project

amaankhan4-Sep-09 2:11

amaankhan

4-Sep-09 2:11

Respected Sir, i have just completed my Engineering. now i am trying to make a real time project, kindly help me,
first we need to Documentation( what things we should take care in that), what kind of ADO.net we should use (Connected or Disconnected), should we use Store Procedure and pls explain me why we use foriegn key, and if possible we me a small explain about primary and foreign in data dase and then relating data from primary field to foreign key feild...........

Thanks Everyone

Regards

Amaaan Khan

Re: How should a Fresher start a Real Time Project

Henry Minute4-Sep-09 2:30

Henry Minute

4-Sep-09 2:30

You would be far better served by buying a book or two.

The information you have asked for is far too complex and long to be covered in a forum such as this.

Henry Minute

Do not read medical books! You could die of a misprint. - Mark Twain
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Disable Close(X) in a form

Swetha Srinivasan4-Sep-09 1:58

Swetha Srinivasan

4-Sep-09 1:58

Hi,

How To disable the Close(X) in the windows form application?

Please help

Re: Disable Close(X) in a form

stancrm4-Sep-09 2:14

stancrm

4-Sep-09 2:14

See this thread :

http://www.codeproject.com/Messages/3180685/Re-how-to-disable-close-button-of-windows-form.aspx[^]

Re: Disable Close(X) in a form

PIEBALDconsult4-Sep-09 5:35

PIEBALDconsult

4-Sep-09 5:35

See this[^] thread.

DataGrid

Wamuti3-Sep-09 22:44

Wamuti

3-Sep-09 22:44

Hi all. I want to get the columns in a DataGrid as an Array and i am trying such a piece of code:

foreach (DataGridViewColumn column in dataGridAppointments.Columns)
{
      ...
}

Where dataGridAppointments is a DataGrid control. I keep on getting the error message:
'System.Windows.Forms.DataGrid' does not contain a definition for 'Columns'.

How can i manage to loop through the collection of columns.

Wamuti: Any man can be an island, but islands to need water around them!
Edmund Burke: No one could make a greater mistake than he who did nothing because he could do only a little.

Re: DataGrid

stancrm3-Sep-09 22:48

stancrm

3-Sep-09 22:48

dataGridAppointments is not a DataGridView.

Re: DataGrid

Wamuti3-Sep-09 23:04

Wamuti

3-Sep-09 23:04

Thanks. So how do i get the columns in the DataGrid?

Wamuti: Any man can be an island, but islands to need water around them!
Edmund Burke: No one could make a greater mistake than he who did nothing because he could do only a little.

Re: DataGrid

stancrm4-Sep-09 0:28

stancrm

4-Sep-09 0:28

Just for example :

DataGrid dataGrid;
.
.
.
to get Cell :
dataGrid[0, 0] -> means cell at row 0 and column 0
.
.
.

so... you can enter any number.

Re: DataGrid

Calla4-Sep-09 0:11

Calla

4-Sep-09 0:11

If you are in fact using a DataGrid you cannot use DataGridViewColumn since the DataGrid and the DataGridView are two different classes. I believe the DataGrid is in the System.Web.. namespace and DataGridView in the System.Windows.Forms namespace. Are you developing a WinForm application or a webb application?

Re: DataGrid

Greg Chelstowski4-Sep-09 1:19

Greg Chelstowski

4-Sep-09 1:19

Calla wrote:
I believe the DataGrid is in the System.Web.. namespace and DataGridView in the System.Windows.Forms namespace. Are you developing a WinForm application or a webb application?

You're wrong.
DataGrid is a control in System.Windows.Forms
It's just way older than DataGridView and does not have a Columns collection.

var question = (_2b || !(_2b));

Re: DataGrid

Calla4-Sep-09 2:57

Calla

4-Sep-09 2:57

Okay then.. my bad Blush | :O

foreach listview and webbrowser document completed passing variables

iNutR3-Sep-09 22:35

iNutR

3-Sep-09 22:35

so ive got a webbrower which is filling in a form.
im using a listview to fill in different data for each listview item.
i call the fill webpage method, but i cant pass any variables to it, because its a documentcompleted event.
so i tried config settings, but it goes so fast that the settings dont change in time and they send the same data over and over, the amount of times is the amount of items.

so this is what i have:

private void cmd_Click(object sender, EventArgs e)
        {


foreach (ListViewItem item in lvAccounts.Items)
                {

//do my thing

Properties.Settings.Default.iEmail = iEmail;
Properties.Settings.Default.tehEmail = tehEmail;
Properties.Settings.Default.Save();
webBrowser1.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(SendMail);
webBrowser1.Navigate(myURL);

//do other stuff
}
}

private void SendMail(object sender,WebBrowserDocumentCompletedEventArgs e)
        {
            HtmlDocument document = webBrowser1.Document;

            document.GetElementById("to").SetAttribute("value", Properties.Settings.Default.iEmail);
            document.GetElementById("body").SetAttribute("value", Properties.Settings.Default.tehEmail);
             document.GetElementById("submit").InvokeMember("click");
        }

thats the only way i see that i can pass variables on.
but i really need to know how to, because it sends the same thing, and sometimes the second on the list, if the list is long and takes a long time.

i basically want it to fill in the webbrowser one time with each listview item, with the different values.

please help Big Grin | :-D

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