How to pass conditional compilation symbols (DefineConstants) to msbuild, How to append conditional compilation symbols in project properties with MSBuild?, How to pass credentials to httpwebrequest for accessing SharePoint Library,

How to pass conditional compilation symbols (DefineConstants) to msbuild
How to append conditional compilation symbols in project properties with MSBuild?
How to pass credentials to httpwebrequest for accessing SharePoint Library

How to pass conditional compilation symbols (DefineConstants) to msbuild

In C#, you can pass conditional compilation symbols (DefineConstants) to msbuild using the /p:DefineConstants= command-line parameter.

Here's an example of passing conditional compilation symbols to msbuild:

msbuild MyProject.csproj /p:DefineConstants=DEBUG;TRACE

In this example, the /p:DefineConstants= command-line parameter is used to specify two conditional compilation symbols, DEBUG and TRACE, separated by a semicolon.

This will cause the conditional compilation symbols to be defined for the build, and any code that is conditionally compiled using the #if and #endif directives will be included or excluded based on whether the symbols are defined or not.

You can also pass conditional compilation symbols to msbuild using a property group in the project file. Here's an example of how to do this:

<PropertyGroup>
  <DefineConstants>DEBUG;TRACE</DefineConstants>
</PropertyGroup>

In this example, a PropertyGroup element is used to define the DefineConstants property, which is set to DEBUG;TRACE.

This will cause the conditional compilation symbols to be defined for the build, just like when using the /p:DefineConstants= command-line parameter.

Using conditional compilation symbols can be useful when you want to include or exclude code based on certain build configurations, such as including debugging information or excluding logging code from release builds.

How to append conditional compilation symbols in project properties with MSBuild?

To append conditional compilation symbols in project properties with MSBuild, you can use the /p:DefineConstants parameter.

Here's an example command line:

msbuild MyProject.csproj /p:DefineConstants=DEBUG;TRACE

In this example, we use the /p:DefineConstants parameter to specify the conditional compilation symbols that we want to append to the project properties. The DEBUG and TRACE symbols are separated by a semicolon.

You can also specify multiple /p:DefineConstants parameters to append additional conditional compilation symbols.

If you are using a build script or automated build process, you can include the /p:DefineConstants parameter in your build script to ensure that the appropriate symbols are set for each build.

How to pass credentials to httpwebrequest for accessing SharePoint Library

To access a SharePoint library using HttpWebRequest, you need to pass the appropriate credentials to authenticate with SharePoint. SharePoint typically uses different authentication methods, such as Windows authentication, SharePoint Online authentication, or forms-based authentication.

Below are the steps for passing credentials to HttpWebRequest for accessing a SharePoint library using different authentication methods:

Windows Authentication (On-Premises SharePoint): If your SharePoint is using Windows authentication, you can use the default credentials of the current user:

var request = (HttpWebRequest)WebRequest.Create("http://yoursharepointurl/library/file.txt");
request.Credentials = CredentialCache.DefaultCredentials;

using (var response = (HttpWebResponse)request.GetResponse())
{
    // Process the response here
}

SharePoint Online (Office 365) Authentication: For SharePoint Online, you need to use the SharePointOnlineCredentials class from the Microsoft.SharePoint.Client namespace:

using Microsoft.SharePoint.Client;

var siteUrl = "https://yoursharepointsite.sharepoint.com";
var userName = "[email protected]";
var password = "yourpassword";

var securePassword = new SecureString();
foreach (char c in password)
{
    securePassword.AppendChar(c);
}

var credentials = new SharePointOnlineCredentials(userName, securePassword);

var request = (HttpWebRequest)WebRequest.Create(siteUrl + "/library/file.txt");
request.Credentials = credentials;

using (var response = (HttpWebResponse)request.GetResponse())
{
    // Process the response here
}

Forms-Based Authentication (FBA) or Custom Authentication: For SharePoint using Forms-Based Authentication or other custom authentication methods, you may need to provide additional headers and cookies along with the request. The exact details would depend on how the custom authentication is implemented in your SharePoint environment.

Please note that in the case of SharePoint Online (Office 365), using HttpWebRequest is not the most common approach. Instead, it is more common to use the SharePoint Client-Side Object Model (CSOM) or SharePoint REST API with authentication handled by the SharePoint client libraries.

When dealing with SharePoint, it's essential to choose the appropriate authentication method based on your SharePoint setup and security requirements. Also, keep in mind that working with SharePoint requires proper access rights and permissions for the user or application accessing the data.

Table of contents