Drag & Drop from Windows Explorer into IE using ActiveX - .NET (Core and Framework) Discussion Boards

John Simmons / outlaw programmer wrote:
you might want to try reducing the complexity from your code, and start with just a plain openfiledialog.

I'm considering that, but in all honesty, this:

OpenFileDialog ofd = new OpenFileDialog();
ofd.RestoreDirectory = true;
ofd.CheckFileExists = true;
ofd.Filter = "rpt files (*.rpt)|*.rpt|All files (*.*)|*.*";
ofd.Title = "Load Report";
DialogResult res = ofd.ShowDialog();

is quite simple already. Sure, I could remove the RestoreDirectory and CheckFileExists options.

Marc

Thyme In The Country
Interacx
My Blog

Marc Clifton wrote:
that. Crashes in "external code", as in the Win32 API.

If the code that you just posted is what you are using why would their be any errors regarding Win32 API? Is the bug before or after the segment you just posted but only shows symptoms during the ShowDialog method?

Regards,
Thomas Stockwell

Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.

Visit my homepage Oracle Studios[^]

Thomas Stockwell wrote:
If the code that you just posted is what you are using why would their be any errors regarding Win32 API? Is the bug before or after the segment you just posted but only shows symptoms during the ShowDialog method?

The exception happens on the call to ShowDialog.

Marc

Thyme In The Country
Interacx
My Blog

This is probably totally unrelated to your situation, but I'll
throw it out there just in case...

I just tried your code from C++/CLI on Vista...

int _tmain()
{
	OpenFileDialog ^ofd = gcnew OpenFileDialog();
	ofd->RestoreDirectory = true;
	ofd->CheckFileExists = true;
	ofd->Filter = "rpt files (*.rpt)|*.rpt|All files (*.*)|*.*";
	ofd->Title = "Load Report";
	DialogResult res = ofd->ShowDialog();
...

...and got an exception "System.Threading.ThreadStateException...
Current thread must be set to single thread apartment (STA) mode
before OLE calls can be made. Ensure that your Main function has
STAThreadAttribute marked on it..."

A quick change to this made it work fine:

[STAThreadAttribute]
int _tmain()
{
	OpenFileDialog ^ofd = gcnew OpenFileDialog();
	ofd->RestoreDirectory = true;
	ofd->CheckFileExists = true;
	ofd->Filter = "rpt files (*.rpt)|*.rpt|All files (*.*)|*.*";
	ofd->Title = "Load Report";
	DialogResult res = ofd->ShowDialog();
...

Good luck

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Mark Salsbery wrote:
Ensure that your Main function has
STAThreadAttribute marked on it..."

Yup, I came across this wisdom why googling about my problem and I did verify that it's there, and just double checked. Smile | :)

Thanks for taking the time for investigating this though! Much appreciated. Smile | :)

Marc

Thyme In The Country
Interacx
My Blog

And you sure you are calling ShowDialog from the main thread?

Regards
Senthil [MVP - Visual C#]
_____________________________
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S. Senthil Kumar wrote:
And you sure you are calling ShowDialog from the main thread?

Yup. I don't spawn any new threads. The call is being made in response to a menu click event.

Marc

Thyme In The Country
Interacx
My Blog

Hi Guys
i m writing an activeX control for a Webform
The requirements for this control are that the user must be able to drag files from Windows explor into
a Listbox which appears on a webpage.
For the listbox i set the property Allowdrop = true.
And inserted the control into the webform.

My problem is that the IE ignores the Drag & drop.
When i Put the same listobx on a Winform it works.

May somebody help me??

<br />
using System;<br />
using System.Collections.Generic;<br />
using System.ComponentModel;<br />
using System.Drawing;<br />
using System.Data;<br />
using System.Linq;<br />
using System.Text;<br />
using System.Windows.Forms;<br />
<br />
namespace ActiveXUploadControl<br />
{<br />
    public partial class ActiveXUploadControl : UserControl<br />
    {<br />
        public ActiveXUploadControl()<br />
        {<br />
            InitializeComponent();<br />
        }<br />
<br />
        private void LBFiles_DragDrop(object sender, DragEventArgs e)<br />
        {<br />
            if(e.Data.GetDataPresent(DataFormats.FileDrop))<br />
            {<br />
                string[] files = e.Data.GetData(DataFormats.FileDrop) as string[];<br />
                int i = 0;<br />
                // Assign the files to array<br />
<br />
                for (i = 0; i<= files.Length - 1; i++)<br />
                {<br />
                    LBFiles.Items.Add( files[ i] );<br />
                }<br />
            }<br />
        }<br />
<br />
        private void LBFiles_DragEnter(object sender, DragEventArgs e)<br />
        {<br />
            if (e.Data.GetDataPresent(DataFormats.FileDrop))<br />
                e.Effect = DragDropEffects.All;<br />
        }<br />
    }<br />
} <br />

<br />
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="ActiveXTest._Default" %><br />
<br />
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><br />
<br />
<HTML><br />
<br />
<HEAD><br />
<br />
<script type="text/javascript"><br />
<br />
</script><br />
<br />
</HEAD><br />
<br />
<body MS_POSITIONING="GridLayout"><br />
<br />
<OBJECT id="OBJECT1" style="<br />
<br />
Z-INDEX: 0; LEFT: 125px; WIDTH: 484px;<br />
<br />
POSITION: absolute; TOP: 85px; HEIGHT: 200px" classid="ActiveXUploadControl.dll#ActiveXUploadControl.ActiveXUploadControl" ><br />
<br />
</div><br />
<br />
</form><br />
<br />
</body><br />
<br />
</HTML><br />

I am trying to come up to speed on .Net webservices and have gotten
stuck on a basic issue - I appreciate any clarification.

I can readily create C# applications that can consume webservices as a
client. In that same app, how can I offer webservices to other
clients? For example, so two apps can communicate.

Everything I read about providing webservices has them built into
asp.net pages running on IIS.

If you can, take a look at WCF. It allows much more flexibility and does not force you to host the web service in IIS.

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+1 on WCF.

If you're using VS2005, you need to update to .net 3.0. If you're using VS2008, you're already good to go.

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Hi ,
can somebody suggest good articles to learn how to build a service oriented architecture.

Thanks,
ctrlnick

Happy Programming!

Regards,
ctrlnick !

ctrlnick wrote:
can somebody suggest good articles to learn how to build a service oriented architecture.

Are you in the correct forum, .NET Framework? If so then you might consider that Microsoft may have published[^] one or more articles eh?

led mike

Yes, he's in the correct forum. He could also post in the WCF/WPF forum.

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Hello All,

I am trying to create a class library to assist with some Services I have running on a particular machine. I am trying to reference System.ServiceProcess in the class but I cannot find it in the Intellisense and if I try to build the class I get the following "type or namespace ServiceProcess does not exist in the namespace System". I am using VisualStudio 2008 Professional Edition and the funny part is, that if I were to create an app with a UI, I can drag the ServiceController onto the form and use it without a problem. Obviously I am missing something but I don't know what.
Can anyone offer any hints as to what the problem is. I would greatly appreciate any help.

Best regards,

FF

Does it help to know the ServiceController class is in the
assembly System.ServiceProcess.dll?

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

That will do it. Thanks for the bread crumbs. Preciate it! Big Grin | :-D

I need to use Microsoft.Xml.XQuery in .net. Does anyone know from where I can download the XQuery.dll? Microsoft seems to have withdrawn it from their site.
Is there an alternative to it?

Thanks

Tony

Is it not built into visual studio ?

Christian Graus

Please read this if you don't understand the answer I've given you

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

I can't find it build into visual studio. The visual studio has the System.XML build in but doesn't seem to cover XQuery functionality. The namespaces are,

using System.Xml.XPath;
using System.Xml.Xsl;
using System.Xml.Schema;
using System.Xml.Serialization;

Microsoft used to provide a download for using Microsoft.Xml.XQuery; but no longer

Thanks

Tony

That's a shame. I bought an XQuery book, I guess I'll never use it.

Christian Graus

Please read this if you don't understand the answer I've given you

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

Hi all. I hope this is the right forum section for this kind of question.

My production environment gives the user a cookie that contains encrypted authorization data. My web service (which does not produce the cookie) is expected to read the value of the cookie, do some magic with it, and extract the name of the authorized user.

That's what they give me. A cookie.

The client side calls my service via SOAP and passes the cookie value through the "Cookie:" header. All other headers are seen by the service, but "Cookie:" is not. (I can see that Context.Request.Cookies is empty, and Context.Request.ServerVariables contains all of my headers except "HTTP_COOKIE".)

I can even pass my cookie data in another header, as long as it's not called "Cookie:".

It sure looks as though .NET doesn't want services to see cookies, to the point of filtering out the "Cookie:" header when it's sent.

My question is--am I crazy, or does the .NET Framework remove cookies from SOAP web service requests? And if so, is there a way to override that behavior, other than by building an equivalent to the "Cookie:" header and parsing it on the service side?

Again, the user is already authenticated through another mechanism, they already have the cookie, and I'm supposed to use the cookie to figure out who's making the request.

Thanks in advance for any insights as to how .NET Framework handles cookies on web service requests.

Mark Schumann wrote:
My question is--am I crazy, or does the .NET Framework remove cookies from SOAP web service requests?

I don't know the answer to that. If you really must know grab one of the several free packet sniffers and take a look at what is actually transmitted.

That said, something is not correct in your scenario. The SOAP message should be designed to carry that information and not rely on something like cookies since SOAP is not reliant on HTTP as it's transport.

led mike

Good answer--why am I expecting SOAP to carry my HTTP headers in the first place? Roll eyes | :rolleyes:

Thanks for the perspective, and for the smack in the head.

What do you think would be "best practice" if I want to push the contents of that cookie (which is all the authentication system gives me to work with) to my web service? I'm thinking it should be just another element in the SOAP request. Is there a more elegant way to do what I'm trying to do?

Mark Schumann wrote:
What do you think would be "best practice" if I want to push the contents of that cookie (which is all the authentication system gives me to work with) to my web service?

http://msdn2.microsoft.com/en-us/library/ms951273.aspx[^]

led mike