JavaScript

Re: Reading a file in local drive using Java script

14-Sep-11 3:22

Graham Breach wrote:
No, you cannot do that just using Javascript from a browser.

Actually... You used to not be able to do it with a browser (was viewed as a security hole). However, with HTML5, browsers have started putting in functionality to trap the filestream when a user selects a file in the input box.

More details are here: http://www.html5rocks.com/en/tutorials/file/dndfiles/[^]

Personally, I still view it as a security problem because I remember all of the details from back in the day, but my opinions don't seem to be falling in line with the new generation of web folks. (yea, yea, get off my lawn and all that) Smile | :)

Graham Breach14-Sep-11 4:09

Graham Breach

14-Sep-11 4:09

Interesting stuff - thanks for the link. I always thought the file upload support was a bit too limited to be honest.

As long as the user still has to choose which files the browser can access this looks like a big improvement.

Re: Reading a file in local drive using Java script

Matt Meyer14-Sep-11 4:22

Dynamic Iframe Resizing on Multiple Layers

14-Sep-11 4:22

I do welcome the drag and drop features (this is probably the most common request I used to have when doing web stuff).

However, I don't like the idea of implicitly agreeing to local file access by just selecting something in a file input field. Especially since Firefox forces you into the file dialog when you focus on the field, and you cannot delete the input field's contents after selecting a file.

Phatinox13-Sep-11 12:24

Phatinox

13-Sep-11 12:24

Hi guys
Its my first in this community and I hope someone can help me on this one. I’m currently working on the personalization of the layout of SAP ERP Portal. This Portal Framework uses Iframes to display the current page and/or applications on the Current Page.

Here is a custom draw of a page
---- Custom Componentes Like Menus etc
----- Iframe (InnerPage) – Shows the Current Page
--------This Page can have embedded content and/or More Iframes with Applications

All the Iframes are on the same domain but I only have acess to the innerPage Code and not to the iframes that have the applications.

Now we want the innerpage to automatic resize to the current content. This is being a problem (even after using jQuery Plugins or Resize Scripts) because:
1) The Iframes that have the applications change content height using Ajax/DHTML (not triggering load event) and this resize scripts wont call the resize mechanism.
2) I don’t have access to the applications source
3) On some tests ive made using Scripts ( for example Auto Height Jquery, SSI Dynamic Drive …) some iframes display the same clientHeight and ScrollHeight Even if theres a scrollbar in the browser window.

If there’s anyone there that can help me solve this kind of situations it would be really helpful Thanks

modified on Thursday, September 15, 2011 4:55 PM

Re: Dynamic Iframe Resizing on Multiple Layers

twseitex16-Sep-11 9:51

twseitex

16-Sep-11 9:51

Hi,

iframe object see http://msdn.microsoft.com/en-us/library/ms535258.aspx

The iframe element functions as a document within a document, or like a floating frame.
The frames collection provides access to the contents of an iframe.
Use the frames collection to read or write to elements contained in an iframe.

Example

sColor = document.frames("sFrameName").document.body.style.backgroundColor;

frames collection see http://msdn.microsoft.com/en-us/library/ms537459.aspx

iframe supports ID and NAME attributes too.

Re: Dynamic Iframe Resizing on Multiple Layers

greatghoul28-Sep-11 0:23

greatghoul

28-Sep-11 0:23

We got the same problem, and our solution is:

1. Set the outer iframe's height to "0"
2. Create a timer to watch every 5 seconds, if the inner iframe's height is larger than an expected value, then set the outer iframe's height to INNER_HEIGHT+15px
3. Kill the timer.

It works, but results in some memory leaks in Internet Explorer.

Ghoul To World! - http://www.g2w.me

How to add a Second Parameter

Vimalsoft(Pty) Ltd12-Sep-11 21:58

12-Sep-11 21:58

How to add a Second Parameter

<%# Eval("Patameter1","return showComment(""{0}"")") %>

please note that the "showComment" is a Jquery function

Thanks

Vuyiswa Maseko,

Spoted in Daniweb-- Sorry to rant. I hate websites. They are just wierd. They don't behave like normal code.

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vuyiswamaseko.com
vuyiswa@dotnetfunda.com
http://www.Dotnetfunda.com

Matt Meyer13-Sep-11 6:55

13-Sep-11 6:55

You can using String.Format directly in the binding:

<%# String.Format("return showComment(""{0}"",""{1}"")", "Patameter1", "Parameter2") %>

Vimalsoft(Pty) Ltd13-Sep-11 10:20

13-Sep-11 10:20

hi Mat here is my code with your advice

XML

<asp:ImageButton ID="btnComment" runat="server"
                           ImageUrl="~/Imgs/comment2.png"
                           OnClientClick= '<%# String.Format("return showComment(""{0}"",""{1}"")", "Parameter1", ""Parameter2") %>'
                           ToolTip="Click here to view a Comment" Visible='<%# CheckPendStatus() %>'  />

and it gives an Error

Error	149	Comma, ')', or a valid expression continuation expected.		
Error	219	Comma, ')', or a valid expression continuation expected.

Matt Meyer13-Sep-11 10:26

13-Sep-11 10:26

You have a second quote before Parameter2.

Vimalsoft(Pty) Ltd13-Sep-11 10:37

13-Sep-11 10:37

hi Matt

thanks for pointing that out it now looks like this

'<%# String.Format("return showComment(""{0}"",""{1}"")",  "PARAMETER1",  "PARAMETER2") %>'

when i run it it does not take the values but it give me the names of the variable, can i use Eval like this

'<%# String.Format("return showComment(""{0}"",""{1}"")", Eval("PARAMETER1"), Eval("PARAMETER2") %>'

THanks

Matt Meyer13-Sep-11 10:42

13-Sep-11 10:42

I used string literals in my example. If you want the variables themselves (and they're at least protected), you can do this:

<%# String.Format("return showComment(""{0}"",""{1}"")",  Parameter1,  Parameter2) %>

where Parameter1 and Parameter2 are variable names in the page object.

Vimalsoft(Pty) Ltd13-Sep-11 10:52

13-Sep-11 10:52

Thank you very much for you help , i have ended up using it this way and it works

HTML

'<%# String.Format("return showComment(""{0}"",""{1}"")", Eval("Parameter1"), Eval("Parameter2")) %>'

Thanks you a Star