Soft82.com » Windows » Developer Tools » Tools & Editors » Specialized Tools » Expression Evaluator 1.0

View screenshots

Expression Evaluator Description

An expression evaluator written in VB.NET

Introduction

My company needed a small expression evaluator to use in our .NET application. Using the .NET framework compilation capabilities seem to be the most obvious way to make an evaluator. However, in practice this technique has a nasty side effect, it looks like it creates a new DLL in memory each time you evaluate your function and it seems nearly impossible to unload the DLL. You can refer to remarks at the end of the article Evaluating Mathematical Expressions by Compiling C# Code at Runtime for more details.

This evaluator is neither using CodeDOM nor trying to compile VB source. On the contrary, it parses your expression and evaluates its value.

Compared to other projects that I have seen, this evaluator can do the following:

* access and process string expressions.

You can evaluate "Hello" + " " + "world"
* access and process objects.

You can evaluate ThisForm.Left.
* it also offers easy extensibility.

You can add any number of custom functions without having to change the evaluator code.

Expression Evaluator Download Button For Your Site

If you want to place a Download Button for Expression Evaluator on your website just insert the following code:

If you want a Link to this page you can use one of the logos bellow:

Expression Evaluator User Reviews

New Specialized Tools Software

JPlex May 25, 2012 Java lexical analyzer generator				Deskzilla Pro May 24, 2012 A desktop client for Mozilla's Bugzilla bug tracking system
Exceptions Deployer May 24, 2012 Command line tool for automating the deployment of Adobe Application Manager				InstallSimple Portable May 23, 2012 Create installation package easily and quickly
Aptana Studio May 22, 2012 Build web applications quickly and easily				UIMap Toolbox May 22, 2012 Restructure, split and merge UIMaps
ExeScript May 21, 2012 Create secured stand-alone applications from BAT, VBS, JS or WSH scripts				Pacestar UML Diagrammer May 18, 2012 Professional easy to learn and use UML diagram drawing tool
Advanced Installer May 17, 2012 The power of Windows Installer made easy				Simply Fortran May 17, 2012 Affordable Fortran for Microsoft Windows
Virto Bulk File Unzip Utility for Microsoft SharePoint May 15, 2012 Easily unpack archives and save extracted files to the document library				Affinic Debugger GUI May 15, 2012 Affinic Debugger GUI .aka. ADG, is designed as a graphical user interface for various debuggers
Flat Assembler May 15, 2012 Open source assembly language compiler				YouTrack May 11, 2012 An innovative, keyboard-centric issue tracking and project tracking tool
Porter May 11, 2012 Web development server for PHP/Node/MySQL developers				EasyPHP May 11, 2012 A complete and ready-to-use environment for PHP developers
PeStudio May 9, 2012 PeStudio shows you many security relevant details about any application				Sourcemaid May 9, 2012 Zip and deliver project code with one click
PHP May 9, 2012 PHP is a server-side, cross-platform, HTML embedded scripting language				Pastebin Desktop May 8, 2012 Take full advantage of your Pastebin.com account

Last 7 Days Most Downloaded Specialized Tools Products

Google SketchUp 409 downloads Google SketchUp is an easy-to-learn 3D modeling program				Project 2007 SDK 102 downloads Help customize and integrate the Project 2007 clients and Project Server 2007 with other apps
Microsoft Expression Web 85 downloads ives you all the tools you'll need to produce high-quality, standards-based Web sites				VirtualBox 68 downloads VirtualBox: Employ server and desktop solution for x86 hardware
WinDriver USB Device 58 downloads USB Firmware Development Toolkit				PHP 30 downloads PHP is a server-side, cross-platform, HTML embedded scripting language
WinDriver 28 downloads WinDriver automates and simplifies the development of user mode Windows device drivers for...				PyScripter 27 downloads An open-source Python Integrated Development Environment (IDE)
Axis 24 downloads Apache Axis is an implementation of the SOAP (				Adobe Bridge SDK 24 downloads Enables developers to integrate with and extend Bridge

All Time Most Downloaded Specialized Tools Products

Google SketchUp 136,983 downloads Google SketchUp is an easy-to-learn 3D modeling program				Project 2007 SDK 506 downloads Help customize and integrate the Project 2007 clients and Project Server 2007 with other apps
Microsoft Expression Web 20,516 downloads ives you all the tools you'll need to produce high-quality, standards-based Web sites				VirtualBox 29,708 downloads VirtualBox: Employ server and desktop solution for x86 hardware
WinDriver USB Device 58,896 downloads USB Firmware Development Toolkit				PHP 13,248 downloads PHP is a server-side, cross-platform, HTML embedded scripting language
WinDriver 7,137 downloads WinDriver automates and simplifies the development of user mode Windows device drivers for...				PyScripter 1,789 downloads An open-source Python Integrated Development Environment (IDE)
Axis 1,446 downloads Apache Axis is an implementation of the SOAP (				Adobe Bridge SDK 3,605 downloads Enables developers to integrate with and extend Bridge