ASP.NET Discussion Boards

maddict13-Jun-06 3:09

13-Jun-06 3:09

Hi guys,

I'm kinda new to asp.net so I hope to learn something here. I'm now working on a web based video streaming system for a larger e-learning system. My systems goes like this. User A (Teacher) will login into my server through a web site and begin using his/her web cam and upload video files to my server. User B (student)will then login into my server and begin streaming the video from the server to his/her web browser. I've got a solution to the User Bs side, where I'll be embedding the Windows Media Player ActiveX control to stream live media from my server. My question here is, how do i capture video frames from User A and send them to the server?

Thanks a lot

javascript for yes no

sparkling star13-Jun-06 2:41

sparkling star

13-Jun-06 2:41

hi
plz can someone send me javascript for yes,no option. i'm not suppose to use ok ,cancel only yes no.
smiles
sparkling star

Re: javascript for yes no

Moe Tarhini13-Jun-06 19:34

Moe Tarhini

13-Jun-06 19:34

You can't do that in Javascript by default. You can use div layers instead but in this case you no longer using the msg box object.

Moe Tarhini
Senior Software Engineer
http://profoundway.blogspot.com

Re: javascript for yes no

RichardGrimmer14-Jun-06 1:01

RichardGrimmer

14-Jun-06 1:01

Do you mean in a "MessageBox" similar to the alert() fn? If so, take a look at the confirm() function... Smile | :)

"Now I guess I'll sit back and watch people misinterpret what I just said......"
Christian Graus At The Soapbox

Re: javascript for yes no

sparkling star14-Jun-06 2:27

sparkling star

14-Jun-06 2:27

Hi ,
i wanted a messagebox or alert with yes ,no option and not ok,cancel
smiles
sparkling star

Encryption/decrption

imshally8113-Jun-06 1:38

imshally81

13-Jun-06 1:38

Hi all,
i wanna know about Encryption/decrption..
i do Googling.... and it return MD5 Encryption in .net but it is Encryption purpose only not for Decryption....
but i wanna both..
Any help !
thanx in advance
Sajjad

Grid delete problem

Commickey13-Jun-06 1:37

Commickey

13-Jun-06 1:37

I have a datagrid with a delete function... my problem is that the table in the database have three keys... how do I set the datakey value in this regard to be able to delete?

Thanks alot,

commickey

Re: Grid delete problem

Praveen_S13-Jun-06 18:33

Praveen_S

13-Jun-06 18:33

1. Bind all three keys to the datagrid.

2. In ItemCommand event of datagrid , check for delete command
eg.. switch(e.CommandName)
{
case "Delete":
break;
}

3. In the case "Delete" Find the controls and fetch values from the three key columns if you use a Template column for them in datagrid.
eg. TextBox txt = new TextBox();
txt = (TextBox)e.Item.FindControl("txtKey1");

OR

IF these three key columns are BoundColumn in datagrid then get values using following
eg. e.Item.Cells[3]

4. Once you get all three key values you can delete this record by developing a sql query which will use these values to delete the record.

praveen.

Re: Grid delete problem

Commickey13-Jun-06 20:31

Commickey

13-Jun-06 20:31

Thanks Praveen....

Your solution looks right.... I will try it and let you know....

Greetings,

Commickey

One more help!

Commickey13-Jun-06 20:48

Commickey

13-Jun-06 20:48

Hello Praveen,

Where do I do the number 4? in the itemCommand or the datagrid_delete function?

Thanks alot,

Commickey

Yes... I got it

Commickey13-Jun-06 20:56

Commickey

13-Jun-06 20:56

Praveen... thank... I worked around in the itemCommand it fires as I clicked on the delete button.... thanks alot.... it works now....

datalist header

Chude13-Jun-06 1:31

Chude

13-Jun-06 1:31

i'm having problems passing a value a label a added to header of a datalist, when i try pushing my strongly typed collection to its text propetry, i get an "object not set to instance of an object"., but if i do the same restricting it to items and alternating items i get no such errors

10.10

Disable the close button of a pop up

sparkling star13-Jun-06 1:09

sparkling star

13-Jun-06 1:09

Hi,
Plz can some one help me disable the close button on the pop up box generated.
smiles
sparkling star

asp.net

na13-Jun-06 0:49

13-Jun-06 0:49

How to Disable and Enable postback in javascript

pavan

Re: asp.net

ThatsAlok13-Jun-06 1:55

ThatsAlok

13-Jun-06 1:55

na wrote:
How to Disable and Enable postback in javascript

wrong Forum!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

Re: asp.net

Monty²13-Jun-06 6:56

Monty²

13-Jun-06 6:56

na wrote:
How to Disable and Enable postback in javascript

And to think someone cycling on some mountains in france will have to read this Smile | :)

You know you're obsessed with computer graphics when you're outside and you look up at the trees and think, "Wow! That's spectacular resolution!"

Re: asp.net

Nish Nishant13-Jun-06 7:10

Nish Nishant

13-Jun-06 7:10

Monty2 wrote:
And to think someone cycling on some mountains in france will have to read this

Regards,
Nish

Nish’s thoughts on MFC, C++/CLI and .NET (my blog)
Currently working on C++/CLI in Action for Manning Publications.
Also visit the Ultimate Toolbox blog (New)

Re: asp.net

Chris Maunder13-Jun-06 11:05

Chris Maunder

13-Jun-06 11:05

No, really. It makes checking email each morning and afternoon all the more worthwhile Sigh | :sigh:

cheers,
Chris Maunder

CodeProject.com : C++ MVP

ASP.NET Secure QueryString (Encrypt/Decrypt)

Moe Tarhini12-Jun-06 23:55

Moe Tarhini

12-Jun-06 23:55

From my experience in web development most developers keep the query string variables unsecured which will lead into lots of security risks.

I have created three functions that will cover the above issue and make sure all your query string variables are secured.Get Source Code

Moe Tarhini
Senior Software Engineer
http://profoundway.blogspot.com

Re: ASP.NET Secure QueryString (Encrypt/Decrypt)

Red_Wizard_Shot_The_Food13-Jun-06 6:33

Red_Wizard_Shot_The_Food

13-Jun-06 6:33

Thanks for posting that link as its somthing im currently working on.

I also found this article
on the subject very helpful and it also contains VB code to do the same kind of thing (though I am working in C#).

One problem I have at the moment, along these very lines, that I was hoping to get help on is:

I have a menu dymanicly generated from an XML file, formatted with an XSL then displayed as an inline list using the ASP.NET XML tool and CSS.

I want to be able to call my <%EncryptQueryString()%> from within the XSL for-each loop, that is used to populate the HTML list. So that the querystrings in my menu http links cant be seen with a mouseover or viewing the source or in the url bar....

Becuase the menu is generated dynamicly the encryptquerystring and its parameters need to be called and set dynamicly also ... within the XSL for-each loop seemed the neatest way of doing this though i am stuggling to find any resources on getting <%%> tagged script to work under XSL.

So many thanks in advance if anyone can help me on this Smile | :)

Re: ASP.NET Secure QueryString (Encrypt/Decrypt)

Moe Tarhini13-Jun-06 19:32

Moe Tarhini

13-Jun-06 19:32

Hey,

Regarding your problem i think it can besolved by assigning the xml source of your control at runtime, so in the code behinde you generate the XML source with all the querystring encrypted and whatever, then you can assign this XML document to the XML /XSL .NET control and you will be ready to Go.
Please let me know if this makes sense to you.

Moe Tarhini
Senior Software Engineer
http://profoundway.blogspot.com

Query Problem or Code Wrong --- Need Support !:confused:

Vinay Chugh12-Jun-06 23:51

Vinay Chugh

12-Jun-06 23:51

Hi guys !
I am trying to search my database with some value enterd by the user in a textbox.The search result has to be displayed in a ListBox on click of search button.

The problem is that when i use the LIKE predicate with 'A%' it gives all the values in ListBox but when i use LIKE predicate as LIKE '"+TextBox1.Text+"' the result is not shown and i get an error saying one or more Parameters are not given values.
PLease Please PLease Help me guys !

My code snippet is as follows:
void Search_Click(object Source, EventArgs e)
{
if (RadioButtonList1.SelectedIndex == 0)
{
// ....Intializing the Strings....//

tring connectionstring;
string queryString;

DataSet ds = new DataSet();
OleDbConnection dbconnection;
OleDbDataAdapter ad;
connectionstring = "Provider=Microsoft.Jet.OLeDb.4.0;DATA SOURCE=" +
Server.MapPath("\\Database\\New_Tool.mdb") ;
queryString = "SELECT Company_Name FROM CompanyName WHERE Company_Name LIKE '"TextBox1.Text"' ";

dbconnection = new OleDbConnection(connectionstring);
dbconnection.Open();
ad = new OleDbDataAdapter(queryString, dbconnection);

ad.Fill(ds,"Company_Name");

ListBox1.DataSource = ds;
ListBox1.DataTextField = "Company_Name";
ListBox1.DataValueField = "Company_Name";
ListBox1.DataBind();

}
}

Vinay Chugh
Newbie in ASP.NET

Re: Query Problem or Code Wrong --- Need Support !:confused:

J4amieC13-Jun-06 0:02

J4amieC

13-Jun-06 0:02

Vinay Chugh wrote:
queryString = "SELECT Company_Name FROM CompanyName WHERE Company_Name LIKE '"TextBox1.Text"' ";

The problem is in this line. In order for this to work you need to actually concatenate the content of textBox1.text with the sql string, not literally put the text "TextBox1.Text" within the string.

queryString = "SELECT Company_Name FROM CompanyName WHERE Company_Name LIKE '" + TextBox1.Text + "' ";

However, that said you should really get in the habit of using Parameterised queries, which allows you to just put a placeholder in the string

queryString = "SELECT Company_Name FROM CompanyName WHERE Company_Name LIKE '@SearchString'";

and then use the Parameters collection on the Command.

Current blacklist
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Re: Query Problem or Code Wrong --- Need Support !:confused:

Vinay Chugh13-Jun-06 21:17

Vinay Chugh

13-Jun-06 21:17

Hi ! J4amieC

Thanks for ur reply. I used the query:

queryString = "SELECT Company_Name FROM CompanyName WHERE Company_Name LIKE '" + TextBox1.Text + "' ";

But this also doesnt work.And no error has appeared too. It just refresh the page but with no output in ListBox.I will be obliged if u could tell me some solution to this prob as my project is totally struck bcoz of it & i am new in ASP.NET.

Also i dont know the concept of Parameterized query and their usage. I will be thankful i u could send me some link where i can learn the concept.

Updating TextBox values to .txt File

ravikiranreddydharmannagari12-Jun-06 23:45

ravikiranreddydharmannagari

12-Jun-06 23:45

i retrievd the values from One.txt to a textbox(multi line,txtEditFile.Text )
i changed the values in text box and when i can click on save button the text should be updated in One.txt file

and the code is

StreamWriter strmEditWrite;
// Delete the file.
//strPath=C:\Inetpub\wwwroot\WebTextEditor\kiran
//strfile=One.txt
File.Delete(strPath + strFile);
// Create the file with new text.
strmEditWrite = File.CreateText(strPath + "\\" + strFile);
strmEditWrite.Write(txtEditFile.Text);
strmEditWrite.Close();
but iam getting an error acces denied plz help me out

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