Crystal Reports - Accessing default value for a parameter using .NET SDK

Web 2.0: 

We have been using Crystal Reports for our Travel CRM with good results for a few years now. We use a completely custom ExtJs based experience for Report viewing which includes a custom user interface for entering report parameters (see screenshot below for an example) and a custom toolbar for managing report navigation and exporting etc (I had blogged about the toolbar earlier here).

ExtJs 3 - Normal looking buttons in toolbars

Seems like ages since I last did any serious blogging, feels good to be back. That too with an interesting solution to a common problem with ExtJs.

I have often seen end-users complain about non-intuitiveness of buttons in ExtJs toolbars. They simply look like static labels, not clickable buttons until you hover over them.

ExtJs - Slider component with ability to add items dynamically

Sometime earlier, I wrote a blog post demonstrating a Ticker component for ExtJs to which items can be added dynamically (here). The client for whom I originally wrote that Ticker component changed the specification recently, now requesting the ability for the ticker items to stay on screen for a configurable duration of time.

ExtJs 3 - Enabling multiple file uploads using TextField

Well I just committed code on one of my projects enabling multiple file uploads using an ExtJs 3 TextField. And it appeared to me I can write a quick blog post about it.

So without wasting too much time, I will allow you to straightaway get your hands dirty with the code to produce multiple-file upload textfield:


ExtJs 4/Touch 2 - Ext.clone can lead to stack overflow with circular references

It feels good to be blogging again after a gap, the last couple of months or so have been way too hectic. Although I expect the schedule to remain clogged up for some more time, I will try to squeeze in some blog posts over the next couple of days. So, lets now come to the topic of this blog post, Ext.clone in ExtJs/Touch resulting in stack overflows while trying to clone an object containing circular references.

ExtJs and iScroll - Scrolling Ext containers on Touch devices (iPad, iPhone etc.) using iScroll 4

I yesterday did a very interesting thing, integrating ExtJs with the excellent iScroll 4 script from Matteo Spinelli that would make my ExtJs containers intuitively scrollable on Touch devices (especially iPad) giving them a more native scrolling feel.

CKEditor - [CKEDITOR.dialog.openDialog] Dialog "link" failed when loading definition

I think this happened to me some weeks ago but I am blogging about it only now (the last month or so has been overly hectic, so no time for "exotic" activities like blogging).

In an ASP.NET website installation that has been running perfectly for months and using CKEditor for wysiwyg content entry, suddenly the users started reporting they can no longer click the "Link" button in the editor toolbar to bring up the Link dialog for turning the selected text to a hyperlink.

ExtJs and Ext.Net - Creating Ext.Net server components for custom ExtJs javascript components

I think all of us would agree that Ext.Net provides too good (and a bit complex) ExtJs and ASP.NET integration. It exposes almost all ExtJs toolkit classes server-side in ASP.NET and many of the popular extensions too. In addition, it provides own custom components that are useful (e.g. MultiCombo, Linkbutton etc).

IE 9 Developer Tools - Inspecting elements might need an F5 key press

Web 2.0: 

This has happened to me enough times now that I would think of publishing the issue and its resolution in a blog post. And the issue relates to inspecting elements on a web-page using Internat Explorer 9's Developer Tools.

ExtJs - An ExtJs Ticker Component supporting adding items dynamically

Tickers used to be an essential part of any website during the earlier days of web, but are no longer considered that much useful today, right? Well I atleast thought so until a few days back, when I received a feature request for a scrolling ticker in a corporate intranet app (which uses ExtJs heavily, in fact with a completely ExtJs based UI). And on some inspection, the request seemed to be reasonable.