Technospot.Net » Programming

Convert HTML to Javascript, PHP and ASP Scripts

Ashish Mohta — Sun, 26 Apr 2009 04:30:24 +0000

Writing HTML codes is not much of a task but creating an equivalent code in Javascript, PHP and ASP is little tough when you have a big piece of code that you need to convert. There are so many parameters and syntax’s you need to take care of that.

But we found an escape from that by using Online HTML to Script Converter tool which does conversions in all these scripting language. Here is an example of a simple html link and its equivalent scripts.

Convert HTML to Javascript, PHP, ASP

Convert HTML to Javascript, PHP and ASP Scripts by Ashish Mohta originally appeared on Technospot.Net on April 26, 2009, 10:00 am. Please see our terms for use of feeds.

Find reusable code snippets

Ashish Mohta — Sat, 25 Apr 2009 13:49:31 +0000

GetCodeSnippent is an interesting place if you are looking for simple or fully implemented design pattern for your code development. Just search for something like disposable and you can get a standard idisposable code which youc an use without worrying much. The codes are standards.

To know if the quality of the code is really maintained we moved to the about page of the site and it was pretty impressive. Its being formulated by Microsoft Regional Director and Microsoft Most Valuable Professional (MVP), J. Michael Palermo IV and Tim Heuer who is a Developer Evangelist with Microsoft covering the Southwestern US

Using this site is pretty simple If you know what you are looking for. Just type in the keyword and you would find a standard sample code. The sample code clearly mentions who is the author and is can be used without worrying much about license.

Find code snippet

Snippet Details and Download

You can also create a shortcut for the snippet so next time you dont waste too much of time searching for it. Code Snippets are availble in C#, Visual basic, J# and XAML. If you are wondering where does all the code come from then its suer driven site. So if you are pretty much into development, I would suggest to do a search here also . Check out Get Code Snippets

Find reusable code snippets by Ashish Mohta originally appeared on Technospot.Net on April 25, 2009, 7:19 pm. Please see our terms for use of feeds.

Convert black and white images to Color : Image transformation

Ashish Mohta — Thu, 05 Feb 2009 18:35:43 +0000

If you are looking for a simple but effective software to convert gray scale ( black and white ) images into Colored images , Check out the Image Transformation Code @ Codeplex. His idea of converting gray scale to colored image is

Gray = Green * 0.59 + Blue * 0.30 + Red * 0.11 and Each color with structure [Gray, Gray, Gray] has set of colors.

The algo starts with creating set of control points which has gray codes equivalent to foll color code ( See the above formula ) and then blow it slowly one by one. It acts like a chain reaction moving from one point to another. You can check his whole logic @ codeplex source Gray to clour

Here is a sample of how it works.

Gray Scale to Colour

Convert black and white images to Color : Image transformation by Ashish Mohta originally appeared on Technospot.Net on February 6, 2009, 12:05 am. Please see our terms for use of feeds.

How to handle DBNULL and Date in LINQ to Dataset

Ashish Mohta — Thu, 05 Feb 2009 08:02:26 +0000

Situation :

I used a Dataset to map to my Access Database. Once Dataset created we can use it with LINQ like we use LINQ to SQL or LINQ to Entity.

Problem:

My database allowed to have columns with DB Null specially in case with Dates. Though its not a good idea to have nulls in Date column but its required in certain situation. Next I wrote the following LINQ Query

MSDS.ppMasterDataTable ppmtb = new MSDS.ppMasterDataTable();

MSDSTableAdapters.ppMasterTableAdapter ta = new LQ2DS.MSDSTableAdapters.ppMasterTableAdapter();
ta.Fill(ppmtb);

var q = from s in ppmtb
select new { s.ppID, s.ppDate };

Array arr = q.ToArray(); // Exception

When I tried executing var q to get an array , There was an exception thrown because data coloumns had DBnull.

The problem was when I created Dataset, the date columns were mapped with System.DateTime which doesn’t accept null value. So whenever the query was executed, it was trying to create an object by assigning null value. This resulted in an exception.

Solution:

I wasnt able to find any direct solution for this but there is an alternate method which worked for me. System.DateTime doesnt accept date but System.Data.SqlTypes.SqlDateTime does. I replaced all instances of System.DateTime with System.Data.SqlTypes.SqlDateTime in the Dataset I created initially to map the access database. You might also have to update column property setting for these columns in the designer by allowing columns to accept null.

Result :

After this there was no problem and I had my var q executing for any of the cases even for creating arrays.

How to handle DBNULL and Date in LINQ to Dataset by Ashish Mohta originally appeared on Technospot.Net on February 5, 2009, 1:32 pm. Please see our terms for use of feeds.

Linq Provider for Twitter

Ashish Mohta — Sun, 01 Feb 2009 06:30:32 +0000

This is an interesting development which demonstrates the essentials of how a LINQ provider can be built for connecting to Twitter API using LINQ framework.

I had been working on Linq since 6 months the concept is awesome. I am big fan of LINQ and Twitter is the Social Networking platform I use and anything coupling them would be really intresting. I have thought of creating providers for databases but creating a provide for Public API was I never thought of.

This is what the lead, JoeMayo, says there

So far, LINQ to Twitter demonstrates the essentials of how a LINQ provider can be built and supports a couple simple queries, such as Public and Friends. You’ll begin to see more features in time, focusing on sub-sets of the Twitter API. In the next release, I’m planning on finishing infrastructure tasks and adding support for all of the optional Friends parameters. More later…

This project is still in beta and If anybody wants to join in the development you can head towards Linq to Twitter @ Codeplex

Linq Provider for Twitter by Ashish Mohta originally appeared on Technospot.Net on February 1, 2009, 12:00 pm. Please see our terms for use of feeds.

Right place to look when Migrating from MS Access, Oracle and Sybase Databases to SQL server 2005 and 2008

Ashish Mohta — Wed, 28 Jan 2009 08:00:59 +0000

I had worked sometime on an application in which we had to convert a MS Access database to SQL 2005 and 2008. I would rather say it was migration than conversion. MS access comes with an inbuilt option to migrate to any SQL Server 2005 Database but it does not create any relationship and indexes has to recreated again. This is annoying if you have too many of them.

Hunting around I found the official page of Microsoft where the official tool for Migrating MS access, Oracle and Sybase databases to SQL sever 2005 is listed. This too is called as Server Migration Assistant ( SSMA). Here is the list from the official page

Gain access to SQL Server Migration Assistant for Access (SSMA for Access) [ Download SSMA 2005 for Access v4.0, SSMA 20058 Access v4.0, Access v1.2 ]
Gain access to SQL Server Migration Assistant for Oracle (SSMA for Oracle) ( Download SSMA 2005 for Oracle v4.0, SSMA 2008 for Oracle v4.0, SSMA 2005 for Oracle V4.0, SMA Oracle v3.1 )
Gain access to SQL Server Migration Assistant for Sybase (SSMA for Sybase) ( Download SSMA 2005 for Sybase v4.0, SSMA 2008 for Sybase v4.0, SSMA 2008 for Sybase PowerBuilder Applications v1.0 , SSMA for Sybase v1.2 )

The page says :

If you are ready to migrate to SQL Server from a costly platform such as Oracle, DB2, Informix, and Sybase or if you are ready to move up to a more feature-rich, robust database platform this page provides access to SQL Server migration information that will help you evaluate your decision, and provides access to SQL Server migration tools that will help simplify the process.

We did spent lot of time hunting for the right solution. I hope you find this and save that time to use it productively somewhere else. Good Luck.

Right place to look when Migrating from MS Access, Oracle and Sybase Databases to SQL server 2005 and 2008 by Ashish Mohta originally appeared on Technospot.Net on January 28, 2009, 1:30 pm. Please see our terms for use of feeds.

Convert HTML to Javascript DOM [ Online Tool ]

Ashish Mohta — Mon, 01 Dec 2008 02:29:41 +0000

There are lot of scenarios where a programmer is required to convert HTML code rendered using Javascript instead of using it directly over the page. HTML2JS is one such online tool which convert well formed HTML code into javascript DOM code and coder can direcly embed in their applications.

Convert HTML to Javascript code

Just add your well formed HTML into the left text area and convert it into Javascript. Here is a sample of a converted HTML to Javascript. Try HTML2JS now

function createHTML(root){ var oTable=root.appendChild(document.createElement("table")); with(oTable){

id="waiterBlock"; style.display="none"; }


var oText = oTable.appendChild (document.createTextNode("

"));

var oTr=oTable.appendChild(document.createElement("tr"));

var oText = oTr.appendChild (document.createTextNode("

"));

var oTd=oTr.appendChild(document.createElement("td"));

var oText = oTd.appendChild (document.createTextNode("some text here ..."));

var oTd=oTr.appendChild(document.createElement("td"));

with(oTd){
className="myClass";

}
var oText = oTd.appendChild (document.createTextNode("

"));

var oDiv=oTd.appendChild(document.createElement("div"));

with(oDiv){
id="oWaiter";

style.display="none";

style.position="relative";

style.border="1px gray solid";

style.overflow="hidden";

style.width="200px";

style.height="15px";

style.backgroundColor="#FFF";

}
var oText = oDiv.appendChild (document.createTextNode("

"));

var oDiv=oDiv.appendChild(document.createElement("div"));

with(oDiv){
id="oWaiterInner";

style.width="40px";

style.height="15px";

style.overflow="hidden";

style.background="#3366cc";

style.position="absolute";

style.top="0px";

style.left="0px";

}

Convert HTML to Javascript DOM [ Online Tool ] by Ashish Mohta originally appeared on Technospot.Net on December 1, 2008, 7:59 am. Please see our terms for use of feeds.

How to install Silverlight tools without internet connection

Ashish Mohta — Fri, 07 Nov 2008 18:29:49 +0000

Recently we underwent training for Microsoft Silverlight and we needed to install Silverlight tools for Visual Studio 2008. We downloaded Silverlight Tools for Visual Studio installer and started installing but it halted on my machine as I don’t have internet connection availble on my machine. This was a problem because anybody who wants to do it will not be able to install unless he or she has internet connection.

Then we started spoofing where the Silverlight tools setup was pointing to ( on internet ) and we found it was trying to download Silverlight 2 Developer Run time. Then we downloaded it and installed.

We guessed that since the developer runtime was installed on the machine, the Silverlight Tools for Visual Studio installer will not connect which was not the case. It again was trying to connect to internet. ( I guess Microsoft should fix this by at least checking the version installed ).

There was nothing else left except to connect internet and at this moment one of our teammate came with an idea saying like any other installer it must be creating a temporary folder before installing and it will download the Silverlight 2 developer runtime in that.

We immediately tool a look at the temporary folders ( %TEMP% ) and bingo it had a folder called as Silverlight Tools RTW . This can solve one problem that we can put the Developer runtime exe there but since the Silverlight tools will still look to internet it wont work. However since the setup was some kind of archive thing we were able to extract it and thats it.

One of the The extracted file was named Vs_silverlight_tools.exe. We just ran it and Silverlight tools was installed. In Short the VS_Silverlight_tools.exe either did not check if the Developer runtime was installed or may be it did. We were not sure on this but anyway our problem was solved.

I cant provide you with a screen shot here as I cant take anything out of my office and I cant simulate the same thing on my machine at home. But this should solver your problem.

How to install Silverlight tools without internet connection by Ashish Mohta originally appeared on Technospot.Net on November 7, 2008, 11:59 pm. Please see our terms for use of feeds.

Find what those error codes mean [ Online Tool ]

Ashish Mohta — Tue, 26 Aug 2008 14:09:58 +0000

If you are programmer this can be a really good tool for you. ErroKey is an online tool which supports languages like Oracle, Sybase, Apple, Cisco6400, UnixSolaris, DB2, MySQL, PostgreSQL, SAPDB, BorlandC, Python, HTTP, Symbian, Mozilla and WindowsNT. All you need is to key in the error code in the search box and get to know it

On the home page you find link to specific languages which you can use it to narrow down the search time. If they keep updating the service this can become a good resource for looking error codes online.

Find what those error codes mean [ Online Tool ] by Ashish Mohta originally appeared on Technospot.Net on August 26, 2008, 7:39 pm. Please see our terms for use of feeds.

How to use escape sequences in strings using VB.Net

Ashish Mohta — Sun, 06 Apr 2008 15:28:47 +0000

Visual Basic does not support control or special or escape sequences like “\n” ( new line ) or “\t” which forces VB programmers to use constants like ControlChars.Crlf and ConrolChars.Tab. The biggest disadvantage of this is , it makes your code ugly or in technical language less readable. So this is the way we use it without escape characters

‘[ Visual Basic ]

Dim mystring as String = “Ashish Mohta ” & ControlChars.Crlf & “Phone” & ConrolChars.Tab & “Mynumber”

However there is a way to use the special characters which comes with little expense by using Regex.Unescape static method which takes a string that contains C# like escape sequences such as new line or tab.

‘[ Visual Basic ]

Dim mystring as String = Regex.Unescape(”Ashish Mohta\n Phone\tMynumber”)

I can bet that’s going to improve Vb programmers life a little bit more.

How to use escape sequences in strings using VB.Net by Ashish Mohta originally appeared on Technospot.Net on April 6, 2008, 8:58 pm. Please see our terms for use of feeds.