Resource Detail and Discussion #1163


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Part I - Client-side Data Access

Categories...
Client User Group
Internet Explorer, Internet Playground
Language
JavaScript
Product
IE4, IE5
Task
Components, Database Interface, Form Enhancement
Technology
Data Binding, Intrinsic Controls

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Developer's Paradise : Inside Technique :
Part I - Client-side Data Access
Submission by Rajeevh

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Part I - Client-side Data Access
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Short Description
Learn techniques for accessing and saving client-side data in your application.

Long Description
Rajeev takes you on a tour as he creates the game, Sokoban. In this first article, Rajeev explores techniques for adding client-side data access to the application. He explores using the common dialog control for file selection, using the tabular data control (TDC) for data retrieval and manipulation, and techniques for saving data on the client.

Author: Rajeev Hariharan
Date/ Version: 5/15/1999
Submission URL: http://www.SiteExperts.com/tips/databinding/ts04/page1.asp
Submission Date: May 15,1999
Last Update: May 16,1999

Discussion and Rate this Resource
Overall Rating: 4

piev on Nov 18, 2003 at 3:40:36 PM No Rating
I am unclear about the purpose to storing data at the client using 'objects'. Using JS client side data is simple and doesn't require the user to install any controls or objects (and so not security issues or decisions).

I would recommend using the client to do everything, other than data storage, and for permanent data storage, use the server; not with full page refreshes, but using simple, small and efficient 'data fragments'.
josevelasquez on Nov 12, 2003 at 11:44:38 AM Rating: 3
I obtained the same error:

"Object doesn't support this property or method 'CommonDialog1.Filename'"

I am running MS IE 6.02 W2K
Devant on Jan 9, 2001 at 9:09:06 AM Rating: 5
All I need now is a way to retrieve the known path to the Shockwaves Pref folder, and voila! Thank you.
georgehall on Jan 8, 2001 at 9:39:41 PM Rating: 2

Rajeev,

I find your comment "TDC remains even today the simplest and most efficient means to access tabular data, and more importantly, it works seamlessly in both on-line as well as off-line mode. " somewhat frustrating. I started with your "COMICS" code on Page 5 to create a page that opens a client specified data file, see http://www.totalcompensationsvs.com/open_load.htm which works great when I run it locally. But when I run it on my server I get an "unspecified error" at line 17 : formObj.TDC1.DataURL=F1.value; which MS says should work fine.

I wish I had tested this earlier on the server before investing too much time in writing TDC code.

- George "no fun at all" Hall
Southern on Feb 3, 2000 at 1:40:12 PM No Rating
OK - I've enabled all security animals - but in both the game and level designer, I get "Object doesn't support this property or method 'CommonDialog1.Filename'"

Running IE 5.01 with latest version of JScript engine under Win98 SE

Now what?

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