BuildItem Class
Definition
Important
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Represents a single item in an MSBuild project.
public ref class BuildItem
public class BuildItem
type BuildItem = class
Public Class BuildItem
- Inheritance
-
BuildItem
Examples
The following example creates a Project object and uses the LoadXml method to add content to the project. The BuildItem, BuildItemGroup, and BuildItemGroupCollection classes are used to add, remove, and change items in the project.
using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Build.BuildEngine;
namespace AddNewItem
{
class Program
{
/// <summary>
/// This code demonstrates the use of the following methods:
/// Engine constructor
/// Project constructor
/// Project.LoadFromXml
/// Project.Xml
/// BuildItemGroupCollection.GetEnumerator
/// BuildItemGroup.GetEnumerator
/// BuildItem.Name (get)
/// BuildItem.Include (set)
/// BuildItem.GetMetadata
/// BuildItem.SetMetadata
/// BuildItemGroup.RemoveItem
/// BuildItemGroup.AddNewItem
/// </summary>
/// <param name="args"></param>
static void Main(string[] args)
{
// Create a new Engine object.
Engine engine = new Engine(Environment.CurrentDirectory);
// Create a new Project object.
Project project = new Project(engine);
// Load the project with the following XML, which contains
// two ItemGroups.
project.LoadXml(@"
<Project xmlns='http://schemas.microsoft.com/developer/msbuild/2003'>
<ItemGroup>
<Compile Include='Program.cs'/>
<Compile Include='Class1.cs'/>
<RemoveThisItemPlease Include='readme.txt'/>
</ItemGroup>
<ItemGroup>
<EmbeddedResource Include='Strings.resx'>
<LogicalName>Strings.resources</LogicalName>
<Culture>fr-fr</Culture>
</EmbeddedResource>
</ItemGroup>
</Project>
");
// Iterate through each ItemGroup in the Project. There are two.
foreach (BuildItemGroup ig in project.ItemGroups)
{
BuildItem itemToRemove = null;
// Iterate through each Item in the ItemGroup.
foreach (BuildItem item in ig)
{
// If the item's name is "RemoveThisItemPlease", then
// store a reference to this item in a local variable,
// so we can remove it later.
if (item.Name == "RemoveThisItemPlease")
{
itemToRemove = item;
}
// If the item's name is "EmbeddedResource" and it has a metadata Culture
// set to "fr-fr", then ...
if ((item.Name == "EmbeddedResource") && (item.GetMetadata("Culture") == "fr-fr"))
{
// Change the item's Include path to "FrenchStrings.fr.resx",
// and add a new metadata Visiable="false".
item.Include = @"FrenchStrings.fr.resx";
item.SetMetadata("Visible", "false");
}
}
// Remove the item named "RemoveThisItemPlease" from the
// ItemGroup
if (itemToRemove != null)
{
ig.RemoveItem(itemToRemove);
}
// For each ItemGroup that we found, add to the end of it
// a new item Content with Include="SplashScreen.bmp".
ig.AddNewItem("Content", "SplashScreen.bmp");
}
// The project now looks like this:
//
// <?xml version="1.0" encoding="utf-16"?>
// <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
// <Compile Include="Program.cs" />
// <Compile Include="Class1.cs" />
// <Content Include="SplashScreen.bmp" />
// <EmbeddedResource Include="FrenchStrings.fr.resx">
// <LogicalName>Strings.resources</LogicalName>
// <Culture>fr-fr</Culture>
// <Visible>false</Visible>
// <Content Include="SplashScreen.bmp" />
//
Console.WriteLine(project.Xml);
}
}
}
Module Module1
''' <summary>
''' This code demonstrates the use of the following methods:
''' Engine constructor
''' Project constructor
''' Project.LoadFromXml
''' Project.Xml
''' BuildItemGroupCollection.GetEnumerator
''' BuildItemGroup.GetEnumerator
''' BuildItem.Name (get)
''' BuildItem.Include (set)
''' BuildItem.GetMetadata
''' BuildItem.SetMetadata
''' BuildItemGroup.RemoveItem
''' BuildItemGroup.AddNewItem
''' </summary>
''' <remarks></remarks>
Sub Main()
' Create a new Engine object.
Dim engine As New Engine(Environment.CurrentDirectory)
' Create a new Project object.
Dim project As New Project(engine)
' Load the project with the following XML, which contains
' two ItemGroups.
project.LoadXml( _
"<Project xmlns='http://schemas.microsoft.com/developer/msbuild/2003'>" & _
"<ItemGroup>" & _
"<Compile Include='Program.cs'/>" & _
"<Compile Include='Class1.cs'/>" & _
"<RemoveThisItemPlease Include='readme.txt'/>" & _
"</ItemGroup>" & _
"<ItemGroup>" & _
"<EmbeddedResource Include='Strings.resx'>" & _
"<LogicalName>Strings.resources</LogicalName>" & _
"<Culture>fr-fr</Culture>" & _
"</EmbeddedResource>" & _
"</ItemGroup>" & _
"</Project>" _
)
' Iterate through each ItemGroup in the Project. There are two.
For Each ig As BuildItemGroup In project.ItemGroups
Dim itemToRemove As BuildItem
itemToRemove = Nothing
' Iterate through each Item in the ItemGroup.
For Each item As BuildItem In ig
' If the item's name is "RemoveThisItemPlease", then
' store a reference to this item in a local variable,
' so we can remove it later.
If item.Name = "RemoveThisItemPlease" Then
itemToRemove = item
End If
' If the item's name is "EmbeddedResource" and it has a metadata Culture
' set to "fr-fr", then ...
If (item.Name = "EmbeddedResource") And (item.GetMetadata("Culture") = "fr-fr") Then
' Change the item's Include path to "FrenchStrings.fr.resx",
' and add a new metadata Visiable="false".
item.Include = "FrenchStrings.fr.resx"
item.SetMetadata("Visible", "false")
End If
Next
' Remove the item named "RemoveThisItemPlease" from the
' ItemGroup
If Not itemToRemove Is Nothing Then
ig.RemoveItem(itemToRemove)
End If
' For each ItemGroup that we found, add to the end of it
' a new item Content with Include="SplashScreen.bmp".
ig.AddNewItem("Content", "SplashScreen.bmp")
Next
' The project now looks like this:
'
' <?xml version="1.0" encoding="utf-16"?>
' <Project xmlns="http:'schemas.microsoft.com/developer/msbuild/2003">
' <Compile Include="Program.cs" />
' <Compile Include="Class1.cs" />
' <Content Include="SplashScreen.bmp" />
' <EmbeddedResource Include="FrenchStrings.fr.resx">
' <LogicalName>Strings.resources</LogicalName>
' <Culture>fr-fr</Culture>
' <Visible>false</Visible>
' <Content Include="SplashScreen.bmp" />
'
Console.WriteLine(project.Xml)
End Sub
End Module
Remarks
An element in a project can represent multiple items through the use of wildcards. Therefore, each BuildItem object does not necessarily represent an Item
element in the project.
Constructors
BuildItem(String, ITaskItem) |
Initializes a new instance of the BuildItem class based on an ITaskItem object. |
BuildItem(String, String) |
Initializes a new instance of the BuildItem class with the specified Name and Include property values. |
Properties
Condition |
Gets or sets the |
CustomMetadataCount |
Gets the number of custom attributes that are set on this item. |
CustomMetadataNames |
Gets all user-defined or custom attribute names. |
Exclude |
Gets or sets the |
FinalItemSpec |
Gets the final specification of the item after all wildcards and properties have been evaluated. |
Include |
Gets or sets the |
IsImported |
Gets a value indicating whether the item was imported into the project. |
MetadataCount |
Gets the number of metadata set on the item. |
MetadataNames |
Gets the names of metadata on the item, including pre-defined or reserved item-spec modifiers. |
Name |
Gets or sets the name of the item collection to which the item belongs. |
Methods
Clone() |
Creates a shallow copy of the BuildItem. |
CopyCustomMetadataTo(BuildItem) |
Copies all item metadata on this BuildItem to the specified BuildItem. |
GetEvaluatedMetadata(String) |
Returns the value of the specified item metadata after all item and property references have been evaluated. |
GetMetadata(String) |
Returns the value of the specified item metadata. |
HasMetadata(String) |
Indicates whether the item has the specified item metadata. |
RemoveMetadata(String) |
Removes the specified item metadata. |
SetMetadata(String, String) |
Assigns the specified value to the specified item metadata. |
SetMetadata(String, String, Boolean) |
Assigns the specified value to the specified item metadata, and optionally treats the metadata as a literal value. |