ASP.NET

Problem calling javascript function from codebehind( asp.net..)

4-Aug-09 22:36

I am not sure that you can, because once you do, how do you pass it to the ASP.NET engine to generate a page lifecycle ?

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Rahul Chitte4-Aug-09 22:18

Rahul Chitte

4-Aug-09 22:18

I m not able to call javascript function ValidateYear with year as parameter, can some1 help reg this issue, i hv written following code in aspx code behind..

Dim sbScript As New System.Text.StringBuilder
            sbScript.Append("ValidateYear(")
            sbScript.Append(cboYearAtCurrentAddressCoApplicantContact.Text)
            sbScript.Append(");")
            'Page.ClientScript.RegisterClientScriptBlock(Me.GetType, "key",sbScript.ToString, False)
            ClientScript.RegisterClientScriptBlock(Page.GetType, "key", sbScript.ToString, False)

Neither exception is thrown nor calling javascript.Plz Help

Re: Problem calling javascript function from codebehind( asp.net..)

Christian Graus4-Aug-09 22:24

Re: Problem calling javascript function from codebehind( asp.net..)

4-Aug-09 22:24

Well, it seems you don't put quotes around the text you're emitting. Beyond that, why you'd do a postback and then run a js function, what it does, and what you mean by 'problem' ( that is, what happens, and what you expect to happen ) are mysteries, so it's impossible to offer more help.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Abhijit Jana4-Aug-09 22:25

Re: Problem calling javascript function from codebehind( asp.net..)

4-Aug-09 22:25

Do you have AJAX ScriptManager in your page ?

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

Christian Graus4-Aug-09 22:28

Re: Problem calling javascript function from codebehind( asp.net..)

4-Aug-09 22:28

Why would he have to ? Nothing in his post has anything to do with AJAX.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Abhijit Jana4-Aug-09 23:37

Re: Problem calling javascript function from codebehind( asp.net..)

4-Aug-09 23:37

No, I have just asked because if there is ScriptManager on his page, then he can try with ScriptManager.RegisterStartupScript().

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

Christian Graus4-Aug-09 23:44

Re: Problem calling javascript function from codebehind( asp.net..)

4-Aug-09 23:44

His basic issue is probably that he's not putting quotes around a constant string. If the code he's using is not working, then ScriptManager is not going to help, it does the same thing.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Rahul Chitte4-Aug-09 23:57

Rahul Chitte

4-Aug-09 23:57

Yes i do have ScriptManager on my page

Re: Problem calling javascript function from codebehind( asp.net..)

Arun Jacob4-Aug-09 22:52

Arun Jacob

4-Aug-09 22:52

If you are trying to validate a textbox its better to add attributes to the textbox instead of using script block.Just like,

txtName.attributes.Add("onchange","return FunctionName('"+ parameter +"')");

Arun Jacob
http://codepronet.blogspot.com/

Re: Problem calling javascript function from codebehind( asp.net..)

Rahul Chitte4-Aug-09 23:23

Rahul Chitte

4-Aug-09 23:23

You are perfectly right but i have to explicitly call that function from one of my checkbox event based on some condition.

The scenario is as below :
I am assigning text of dropdown1 to another dropdown2 , i have written javascript function for its onchange event and based on dropdown2 text i am hiding section below dropdown2 using javascript, the thing is that when i m changing value from dropdown2 then it is working fine but when i m trying to assign value of dropdown1 to dropdown2 using .Text property the section below is not getting hide because onchange event is not getting fired.

Re: Problem calling javascript function from codebehind( asp.net..)

Christian Graus4-Aug-09 23:27

validate the extension of the uploaded file

4-Aug-09 23:27

So why are you doing a postback and why, if you're already running your own js code, don't you just add code to hide it ?

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

RajaAhmed4-Aug-09 21:24

RajaAhmed

4-Aug-09 21:24

i m looking for regex that validate the extension of the uploaded file

Christian Graus4-Aug-09 21:34

4-Aug-09 21:34

Excellent. I suggest you download Expresso, and use that to build your regex. I'm not sure exactly what sort of validation you want to do ( image file, file with an extension that is three letters, what ? ), so I can't really give you an answer.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

RajaAhmed4-Aug-09 22:49

RajaAhmed

4-Aug-09 22:49

actually i want to just validate whether the uploaded file is a video file or not
i-e .dat, .mp4,.mpegv etc

Christian Graus4-Aug-09 23:13

4-Aug-09 23:13

Of course, a file can be a video and not have a valid extension. You can use the System.IO.Path class to get the extension and do a basic string match, just call ToLower or ToUpper to make case irrelevant.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Vimalsoft(Pty) Ltd4-Aug-09 22:18

Vimalsoft(Pty) Ltd

4-Aug-09 22:18

i once give an answer to someone with the same request. please search here on the forum

Vuyiswa Maseko,

Few companies that installed computers to reduce the employment of clerks have realized their expectations.... They now need more and more expensive clerks even though they call them "Developers" or "Programmers."

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vuyiswamaseko.somee.com
vuyiswa@its.co.za
http://www.itsabacus.co.za/itsabacus/

fileUpload control of asp

puviyarasan.j4-Aug-09 23:56

puviyarasan.j

4-Aug-09 23:56

if you use the asp:fileupload control

use the

RajaAhmed4-Aug-09 21:21

RajaAhmed

4-Aug-09 21:21

i m using mozilla fire fox n looking for a full path of posted file from fileUpload control of asp

string filepath= fileUpload1.PostedFile.FileName;
but
filepath only holds the file name.. no path...............
helpp plzzzzzzzzzz

Abhijit Jana4-Aug-09 21:34

4-Aug-09 21:34

AhmedNisar82 wrote:
fileUpload control of asp

I guess you are talking about ASP.NET not ASP.

AhmedNisar82 wrote:
string filepath= fileUpload1.PostedFile.FileName;

You will only get the file name.
Use it to upload the file.

FileUpload1.PostedFile.SaveAs(filpathToSave)

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

Christian Graus4-Aug-09 21:54

Re: fileUpload control of asp [modified]

4-Aug-09 21:54

Yet another person who asks stupid questions, then does not reply when people try to help.

I suspect he wants the full path because he wants to do some sort of file operation that won't work once he deploys to a server.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Abhijit Jana4-Aug-09 23:31

4-Aug-09 23:31

Christian Graus wrote:
Yet another person who asks stupid questions, then does not reply when people try to help.

Boss, I did not understand what you mean by this.

By the way, ~~I didn't voted for this~~.
[Edit]Now I have voted 5.[/Edit]
Thanks

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

modified on Wednesday, August 5, 2009 5:41 AM

Christian Graus4-Aug-09 23:33

4-Aug-09 23:33

I mean that his question is obviously asked because he assumes because he can write code on a dev machine that accesses the file by file path, it means that he can magically do the same thing on the server when he deploys. His post asking for more info pretty much proves that. And, so many people ask questions that basically show they know nothing about ASP.NET, then don't respond when people try to help ( this guy did eventually respond, but many do not ).

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Abhijit Jana4-Aug-09 23:40

4-Aug-09 23:40

Ya.. Got it Boss. You are absolutely correct! Thumbs Up | :thumbsup:

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

Christian Graus4-Aug-09 21:34