January 2008 - Damir Dobric Posts

Service Factory Issue

When you create a Data Contract with number of primitive properties, be sure that the name of the property is never "Value". Following example shows a Data Contract which you should not use: In this case the Data Contract generator would create...

Published Tue, Jan 29 2008 2:49 PM by Damir Dobric

SQL SERVER database DIAGRAM creation error

When you try to create DB Diagram you may get following error: Database diagram support objects cannot be installed because this database does not have a valid owner. To continue, first use the Files page of the Database Properties dialog box or...

Published Sun, Jan 20 2008 11:03 PM by Damir Dobric

Detaching Entities in Linq2Sql

In two-tier applications, a single DataContext is used for queries and updates. Some of these examples I described in this post . However, for applications with additional tiers (almost all serius applications today), it is necessary to use separate DataContext...

Published Sun, Jan 20 2008 8:28 PM by Damir Dobric

Linq update and insertion

In this post I will show few basic scenarios and related problems by daily using of the Linq2Sql. Before all take a look on next two pictures which represent the database and the data-context used in samples in this post. Retrieving of some item Following...

Published Sun, Jan 20 2008 7:46 PM by Damir Dobric

Indexing and filtering files with IFilter and .NET (C#)

Indexing of files based on IFilter interface is pretty old Windows technology, which is today still important and consisted part of several search products like MOSS and Desktop search. The IFilter interface scans documents for text and properties (also...

Published Sat, Jan 19 2008 4:30 PM by Damir Dobric

Service Factory Modeling Edition Issue

If you installed VSTS2008 and VSTS2005 side-by-side, you may notice that it is not possible to change the type of the primitiveType. If you press the button , you may get following error: " Attempted to read or write protected memory. This is often...

Published Fri, Jan 18 2008 6:13 PM by Damir Dobric

Filed under: Architecture and Modeling, WCF

Visual Studio Version differentiation

In the last months I was often confused about the version of Visual Studio I have currently opened. Because I use VSTS2005 and VSTS2008 and mostly have 5-10 instances opened, it is not so difficult to get wired by switching between VS-instances. Sometimes...

Published Thu, Jan 17 2008 10:50 PM by Damir Dobric

.NET Framework Source Code available

Microsoft has released the source code for .NET Framework. Personally I regard this decision and find it as an important step for MS developer community. For more information about using of source code in VS Debugger take a look at detailed blog post...

Published Thu, Jan 17 2008 11:01 AM by Damir Dobric

Unit Testing and InternalsVisibleTo

Just for documentation purposes, here is the procedure how to do it manually: D:\>sn -Tp TestProject.dll Microsoft (R) .NET Framework Strong Name Utility Version 3.5.21022.8 Copyright (c) Microsoft Corporation. All rights reserved. Public...

Published Mon, Jan 14 2008 6:27 PM by Damir Dobric

Implementing and configuring "ServiceHostFactoryBase"

ServiceHostFactory provides the base implementation for the factory that allows application code to participate in the creation of service hosts in managed hosting environments where the host instance is created dynamically in response to incoming messages...

Published Tue, Jan 08 2008 11:14 PM by Damir Dobric

Filed under: WCF

Enabling IIS7 Security Modules

While configuring the security of the web application in IIS7, you may notice that required security mechanism does not exist at all in the Authentication settings of the application. For example you want to enable Windows Authentication, but only Anonymous...

Published Tue, Jan 08 2008 10:44 PM by Damir Dobric

Filed under: Asp.Net, WCF

BDC-App for Web Service with paging

Because not so many people blog about BDC somehow I feel responsible to post a bit about this MOSS feature. Today I will describe how to implement the web service which should be enabled for MOSS search crawler. Interesting in this scenario is not how...

Published Tue, Jan 08 2008 12:27 AM by Damir Dobric

Creating WSDL from nothing

In one SOA project, we have requirement to create the WSDL (Service Description) long before the service is deployed at all. Without of explaining why we need that, imagine that you have all required to deploy the service. That means you know the contract...

Published Thu, Jan 03 2008 11:43 PM by Damir Dobric

Filed under: WCF

Testing Methods in Ms BDC-Definition Editor

While building the BDC metadata, it will be for sure necessary to deploy your XML application definition many times for testing purposes. This is very simple and trivial task, but unfortunately it takes just too many clicks (>4). The problem is that...

Published Wed, Jan 02 2008 11:39 PM by Damir Dobric

Filed under: MOSS

"Business Data Catalog Definition Editor" Installation Issue

While installing Microsoft Business Data Catalog, you will probably get following error: " Unexpected Error has occurred. Error is "ExecuteNonQuery failed for Database 'AR633257265001121712' à ExecuteNonQuery failed for Database 'AR633257265001121712'...

Published Wed, Jan 02 2008 10:55 PM by Damir Dobric