October 2009 – Page 2 – Knowledgebase

Measure execution time in C#

15 October, 2009 Roel van Lisdonk 0 Comments 0 categories

To measure execution time in C#, substract start and end datetime. public void MeasureTime() { // Capture start time DateTime startDateTime = DateTime.Now; // Do something for 1000ms... Thread.Sleep(1000); // Capture end time DateTime endDateTime

Belastingdienst is de duivel, ze zeggen het zelf

15 October, 2009 Roel van Lisdonk 0 Comments 0 categories

Als je naar http://www.belastingdienst.nl/ gaat, en je kijkt links onderin naar het logo van de belastingdienst, dan staan de letters B,e,a,s, en t schuin, maar de l niet, dus eigenlijk staat er: Belastingdienst. Het is

Google wave – nice error message on contact search

15 October, 2009 Roel van Lisdonk 0 Comments 0 categories

Wave rules, but I can’t find the meaning of the message: yyyy@googlewave.com could not be found. Would you like to add it to your contacts? If the contact is not found, how can it be

CSS differences in IE6 – IE7 – IE8

15 October, 2009 Roel van Lisdonk 0 Comments 0 categories

A must read article for all CSS designers: This article will attempt to provide an exhaustive, easy-to-use reference for developers desiring to know the differences in CSS support for IE6, IE7 and IE8 http://www.smashingmagazine.com/2009/10/14/css-differences-in-internet-explorer-6-7-and-8/

C# – Property snippet

9 October, 2009 Roel van Lisdonk 0 Comments 0 categories

Some C# code snippets for C# properties: /// <summary> /// A object property with null check /// </summary> private Type _propertyName = null; public Type PropertyName { get { if(_propertyName == null) { throw new

Leadtools error message “Operation failed” on Leadtools.Barcode.BarcodeException.CheckErrorCode

6 October, 2009 Roel van Lisdonk 0 Comments 0 categories

If you get the leadtools error message “Operation failed” in function Leadtools.Barcode.BarcodeException.CheckErrorCode, you should check if the following files are in the same folder as the assemlby that uses the leadtools assemblies: Leadtools .NET assemblies:

Leadtools engine initialization error, or there is no appropriate license

6 October, 2009 Roel van Lisdonk 0 Comments 1 category

If you get the error: Leadtools.Forms.Ocr.OcrException : Engine initialization error, or there is no appropriate license. at Leadtools.Forms.Ocr.Plus.OcrEngine.StartupEngine(String startupParameters) at Leadtools.Forms.Ocr.Plus.OcrEngine.Startup(RasterCodecs rasterCodecs, String workDirectory, String startupParameters) make sure the ocr engine is started with the

Leadtools assembly load error, when building on a x64 platform

6 October, 2009 Roel van Lisdonk 0 Comments 0 categories

When you use leadtools in an assemlby and reference this assemlby by another assembly (e.g. a dll uses the Leadtools.Forms.Ocr and an executable references that dll), make sure that both assemlbies reference the Leadtools assembly,

Resolving the System.InvalidOperationException : Could not find default endpoint element that references contract ‘xxx’ in the ServiceModel client configuration section

2 October, 2009 Roel van Lisdonk 6 Comments 0 categories

After renaming a WCF service reference in Microsoft Visual Studio, you can get the error: System.InvalidOperationException : Could not find default endpoint element that references contract ‘ImportServiceReference.IImportService’ in the ServiceModel client configuration section. This might

Using TSQL Like operator in LLBLGen

2 October, 2009 Roel van Lisdonk 2 Comments 0 categories

If you want to query you’re database with LLBLGen, by filtering entities using the TQL Like operator you should use the FieldLikePredicate See LLGLGen v2.6 documentation: http://www.llblgen.com/documentation/2.6/hh_start.htm Specific part: http://www.llblgen.com/documentation/2.6/Using%20the%20generated%20code/Adapter/Filtering%20and%20Sorting/gencode_filteringpredicateclasses_adapter.htm#FieldLikePredicate FieldLikePredicate Description compares the entity

Month: October 2009