ASP.NET Discussion Boards

VikashGohil23-Sep-09 19:38

23-Sep-09 19:38

Well Sorry for opening a new post,

Actually Abhishek, the earlier post was for devices Connected in LAN and this one is for Accessing a USB Device on Client PC,

might be the Subjects are same, sorry.

So any idea how can I access a USB device using it's DLL that is connected to Client PC from Browser.

The Client PC has all the necessary drivers and DLL files installed required to use the device.

Any Idea from anyone.

Re: DLL Files Usage in Web Application.

Abhishek Sur23-Sep-09 23:02

Abhishek Sur

23-Sep-09 23:02

Hey... no big deal.. You can open as many post you want. The question should be different.

On this matter, I would like to say if you want to access your usb device from client pc without any driver installed.. it wont be done. Through website you can only transfer base64 data which has some limits.

You can make a browser plugin I guess... if you require this... provided the clients should download your plugin and install it to their machine.

I hope you got the problem clearly. D'Oh! | :doh:

Cheers.

Abhishek Sur

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Re: DLL Files Usage in Web Application.

VikashGohil25-Sep-09 3:05

VikashGohil

25-Sep-09 3:05

Hello, Abhishek.

Thanks for your reply.

Actually I would have everything Installed on Client PC ie, the Drivers for USB Device and Even my DLL file registered on Client PC.

Any way I was just thinking whether this Could be done through VBScript.

I have written a DLL file in which there are functions that Uses the Main DLL file.

I have registered the DLL on My PC. Also written a VBScript. But the Script is not working properly.

When Calling the function from a Windows App, gives me proper output.

But when run from VB script gives me improper results.

There are not errors, but results are not as expected.

Can you tell me why this Mismatch, when run from VB App runs perfectly OK, and on the same machine run using VBScript wrong results.

Also abhishek, you were talking about Plugins, could you give me more information on that, like how to use it, create it etc. Would be of great help, I had come to know of plugins but have no idea how to go about it.

Please any help would be great.

Re: DLL Files Usage in Web Application.

Abhishek Sur25-Sep-09 10:33

Abhishek Sur

25-Sep-09 10:33

As VBscript doesnt work in browsers other than IE, it would be bad to do programming in VBscript.
And hey, if you are to install all the drivers in cleint pc why do you need to make use of browser. Why dont you use Windows program to do this job.

The web environment is only for those who are in remote areas and doesnt need to install any software.
You can use Windows application and use Remoting / WCF / Web service to communicate with the server as well.

Abhishek Sur

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Re: DLL Files Usage in Web Application.

VikashGohil26-Sep-09 19:13

VikashGohil

26-Sep-09 19:13

Thanks Abhishek for your reply.

Well, Abhishek, you are right but it's a Clients requirement that the application should be Web-Based.

Also we are going for it bcoz in todays world everything is bcoming web-based, so it's necessary to be with the world other wise your competitors would leave u behind.

OK now back to the topic. See I have successfully written a VBscript to access a Card reader on clients PC using browser.

Now I have another query.

I have another USB device. To use this device, the manufacturer has provided a .OCX file.

So in windows app, I register my OCX and I can see a control in the ToolBox which I drop on a Form and use the USB device using this Control.

Now this Control works on Events and the USB device is a FingerPrint Reader.

When I place my Finger on the Reader it generates an Event which is Captured by my Windows App(bcoz of OCX Control on the Form) and I get the FingerPrint Data.

Now How Can I Achieve this in VBScript in my Web-Page.

Hope you understand my explaination.

Any Ideas.

HttpWebResponse.GetResponse(); The operation has timed-out

livez23-Sep-09 3:51

livez

23-Sep-09 3:51

Hello!

We run this code to get xml for an example from uri´s

 <br />
try<br />
            {<br />
                HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(requestUriString);<br />
<br />
                webRequest.Timeout = timeOut;<br />
<br />
                HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse();<br />
<br />
                return new StreamReader(webResponse.GetResponseStream(), encoding);<br />
            }<br />
            catch(WebException e)<br />
            {<br />
LogError(e);<br />
return null;<br />
}<br />
<br />

We keep getting alot of "The operation has timed-out"-exceptions thrown. Is there something we are missing when we are setting up the webRequest object? For instance, should we set ReadWriteTimeout?

/regards

W

Re: HttpWebResponse.GetResponse(); The operation has timed-out

sashidhar23-Sep-09 5:57

sashidhar

23-Sep-09 5:57

You Are not getting the request from the site.It Will wait for some time. if it is not recieving the request for particular time it will throw this error.
Check the link it May Help
http://www.codeproject.com/Messages/3208439/Re-Post-an-HTTP-Request-from-one-WebServer-to-anot.aspx[^]

If It Helps Click It as Answer

Re: HttpWebResponse.GetResponse(); The operation has timed-out

Abhishek Sur23-Sep-09 9:34

Abhishek Sur

23-Sep-09 9:34

Where you mentioned webRequest.Method

Other than that the code seems to be alright. If still errors out, open a web browser, paste the requestUriString to the address bar and see if the page response is within the Timeout limit... Smile | :)

Cheers

Abhishek Sur

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Re: HttpWebResponse.GetResponse(); The operation has timed-out

livez24-Sep-09 20:20

livez

24-Sep-09 20:20

Thank you both for your responses! I will try your suggestions.

how to make text box mandatory on dropdown change

NK723-Sep-09 3:26

NK7

23-Sep-09 3:26

Hi
I have one dropdown contain status information.

Status are

1. Finished
2. Open
3. Progress

Also one date textbox.

I want to set the text box is editable and mandatory when i select the status as finished in the dropdown. Otherwise it should accept null values(not mandatory) and read only.

Can any one help me please. its urgent. It should be in C# or java script

Regards
K7

kesavan

Re: how to make text box mandatory on dropdown change

J4amieC23-Sep-09 3:36

J4amieC

23-Sep-09 3:36

I would have a requiredfieldvaliadtor on the textbox (and perhaps a regularexpressionvalidator too to ensure a date is entered) but set enabled to false. Then, when the user selects "FInished" from the dropdown, enable the validators.

Re: how to make text box mandatory on dropdown change

Abhijit Jana23-Sep-09 3:38

Abhijit Jana

23-Sep-09 3:38

You can simply implement it using AJAX Update Panel or JavaScript. You need to check the Selected value from dropdown list, and based on that you have enable/disable the Textbox. To avoid the un-necessary postback you have to use AJAX Updatepanel or Javscript Smile | :)

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.

How to add Databse in App_data folder

rinku soni 2323-Sep-09 3:10

rinku soni 23

23-Sep-09 3:10

Hello every one,i have a (mysql) database name "classified" in my computer.i want to add this in App_data folder.how to do this .

Re: Cross Post : Please Ignore

Abhijit Jana23-Sep-09 3:17

Abhijit Jana

23-Sep-09 3:17

Please don't Cross post ! Dead | X|

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.

Instead of http://localhost:3112/ I need to use the Current servername

getaccessyr23-Sep-09 3:09

getaccessyr

23-Sep-09 3:09

Hi All,

In my Application we are using flash files,in that if we click on the flash image it should redirect to another page in new window,so to do that we are doing like this:

string sFlashObject = "<object classid=\"clsid:D27CDB6E-AE6D-11cf-96B8-444553540000\" codebase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,65,0\" height=\"195\" width=\"220\"> " + "<param name=\"movie\" value=\"http://ebutler.be/erez/fsi/fsi.swf?autobooklet=true&src=http://www.ebutler.be/erez&pages_dir=" + hfImageFilePath.Value + "&cfg=pages_presets/thumbnail.fsi&MouseModes_Mode2=0&

pages_demourl=http://localhost:3112/UI/FSIViewer.aspx?FolderID%3d" + hfFolderId.Value +

"&pages_demourltarget=_new\"> " +
"<param name=\"wmode\" value=\"transparent\"> " +
"<embed type=\"application/x-shockwave-flash\" pluginspage=\"http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash\" wmode=\"transparent\" src=\"http://ebutler.be/erez/fsi/fsi.swf?autobookletId=true&src=http://www.ebutler.be/erez&pages_dir=" + hfImageFilePath.Value + "&cfg=pages_presets/thumbnail.fsi&MouseModes_Mode2=0&
pages_demourl=http:///localhost:3112/UI/FSIViewer.aspx?FolderID%3d" + hfFolderId.Value +

"&pages_demourltarget=_new\" height=\"195\" width=\"220\"> " +
"</object>";

In the above script you can notice that i gave demourl as:
"http:///localhost:3112 /UI/FSIViewer.aspx?FolderID%3d"

Instead of this i need to show Servername where ever we open the application

Thanks In Advance
Yamuna

Re: Instead of http://localhost:3112/ I need to use the Current servername

Nisha Agrawal23-Sep-09 3:18

Nisha Agrawal

23-Sep-09 3:18

you can get the value of Current Server via Request.Url after some string manipulations. Request.Url.toString() will give you the URl of the current webpage request so via string manipulations you can get the name of the server.

Re: Instead of http://localhost:3112/ I need to use the Current servername

Abhijit Jana23-Sep-09 3:19

Abhijit Jana

23-Sep-09 3:19

First of all, you code is nota understandable at all.

yamunarani wrote:
pages_demourl=http://localhost:3112/UI/FSIViewer.aspx?FolderID%3d" + hfFolderId.Value +

What about this one,

pages_demourl="/UI/FSIViewer.aspx?FolderID%3d" + hfFolderId.Value +;

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.

Re: Instead of http://localhost:3112/ I need to use the Current servername

getaccessyr23-Sep-09 3:41

getaccessyr

23-Sep-09 3:41

Hi Abhijit,

Thanks for your reply

We are using FSI viewer in Our application so we are using the Code which i posted in the message

if you want you can view the Message again.To bind the image dynamically we have to use that code.

If u want explanation about FSI viewer i will give you not understood.

Instead of http://localhost:3112/ this i need to use <servername> that too dynamically i have to get.

regards,
Yamuna

Re: Instead of http://localhost:3112/ I need to use the Current servername

Abhishek Sur23-Sep-09 10:06

Abhishek Sur

23-Sep-09 10:06

Is http://localhost:3112 is the same site from which you are...

If it is .. you can only use Relative path, rather than absolute. Big Grin | :-D

Abhishek Sur

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How to display xml string on asp.net page [modified]

Calla23-Sep-09 3:08

Calla

23-Sep-09 3:08

Hi,

From a link I open up a popUp window where I want to display an xml, exactly the way for instance IE does when you open an xml document from file (expanded with parents and childs).

In my Page_Load method (in the popUp window) I retrieve the xml string via a web service and then I want it to be displayed. But how?

I tried the following code:

string xmlString = rq.GetErrorTextByID(id); //retrieve the xml from web service - works fine.

XmlDocument doc = new XmlDocument();
doc.LoadXml(xmlString);
doc.Save(Server.MapPath("message.xml"));
Response.Redirect("message.xml");

This works fine, but of course it physically creates the message.xml file on disk and I don't want that. I want the xml to be shown the same way as this code does, but I don't want the file to be created.

This might be a simple task, but I haven't worked with asp.net for that long Hmmm | :|

Any ideas/suggestions?

modified on Wednesday, September 23, 2009 10:38 AM

Re: How to display xml string on asp.net page

Abhishek Sur23-Sep-09 10:17

Abhishek Sur

23-Sep-09 10:17

You mean you need to write the content of message.xml to your browser??

Use this code :

Response.Clear();
XmlDocument doc = new XmlDocument();
doc.LoadXml(xmlString);
doc.Save(Response.OutputStream);
Response.Flush();
Response.Close();

I think this is what you need. Rose | [Rose]

Abhishek Sur

My Latest Articles
Create CLR objects in SQL Server 2005
C# Uncommon Keywords
Read/Write Excel using OleDB
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Re: How to display xml string on asp.net page

Calla24-Sep-09 20:30

Calla

24-Sep-09 20:30

Yes, this was exactly what I was looking for. Thank you!
Though I had to add one more line of code to get the string to show as XML. The code snippet I use is this:

Response.Clear();
XmlDocument doc = new XmlDocument();
doc.LoadXml(xmlString);
doc.Save(Response.OutputStream);
Response.ContentType = "text/xml"; // -> Added this line to show the XML properly.
Response.Flush();
Response.Close();

Re: How to display xml string on asp.net page

Abhishek Sur25-Sep-09 10:41

Abhishek Sur

25-Sep-09 10:41

Great...
Thanks for the update as well. . Wink | ;)

I just overlooked the contentType.

Abhishek Sur

My Latest Articles
Create CLR objects in SQL Server 2005
C# Uncommon Keywords
Read/Write Excel using OleDB
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spgridview groping

ptvce23-Sep-09 3:02

ptvce

23-Sep-09 3:02

i have a spgridview
i write this code:
gridView.AllowGrouping = true;
gridView.GroupField = "YearMonth";
gridView.GroupFieldDisplayName = "date";
gridView.AllowGroupCollapse = true;

i want it expand not collapse in first time(when it run) what can i do? does any body know?

Re: spgridview groping

Abhijit Jana23-Sep-09 6:49

Abhijit Jana

23-Sep-09 6:49

ptvce wrote:
i have a spgridview

what is spgridview ? Are you talking about Share point control ?

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
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