BuildPropertyGroup 类

定义

public ref class BuildPropertyGroup : System::Collections::IEnumerable

public class BuildPropertyGroup : System.Collections.IEnumerable

type BuildPropertyGroup = class
    interface IEnumerable

Public Class BuildPropertyGroup
Implements IEnumerable

继承

Object

BuildPropertyGroup

实现

IEnumerable

示例

下面的示例创建一个Project对象, 并LoadXml使用方法将内容添加到项目。The following example creates a Project object and uses the LoadXml method to add content to the project. BuildProperty、和类BuildPropertyGroupCollection用于添加、移除和更改项目中的项。 BuildPropertyGroupThe BuildProperty, BuildPropertyGroup, and BuildPropertyGroupCollection 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 AddNewProperty
{
    class Program
    {
        /// <summary>
        /// This code demonstrates the use of the following methods:
        ///     Engine constructor
        ///     Project constructor
        ///     Project.LoadFromXml
        ///     Project.Xml
        ///     BuildPropertyGroupCollection.GetEnumerator
        ///     BuildPropertyGroup.GetEnumerator
        ///     BuildProperty.Name (get)
        ///     BuildProperty.Value (set)
        ///     BuildPropertyGroup.RemoveProperty
        ///     BuildPropertyGroup.AddNewProperty
        /// </summary>
        static void Main()
        {
            // 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 PropertyGroups.
            project.LoadXml(@"
                <Project xmlns='http://schemas.microsoft.com/developer/msbuild/2003'>

                    <PropertyGroup>
                        <Optimize>true</Optimize>
                        <WarningLevel>4</WarningLevel>
                    </PropertyGroup>

                    <PropertyGroup>
                        <OutputPath>bin\debug\</OutputPath>
                        <RemoveThisPropertyPlease>1</RemoveThisPropertyPlease>
                    </PropertyGroup>

                </Project>
                ");

            // Iterate through each PropertyGroup in the Project.  There are two.
            foreach (BuildPropertyGroup pg in project.PropertyGroups)
            {
                BuildProperty propertyToRemove = null;

                // Iterate through each Property in the PropertyGroup.
                foreach (BuildProperty property in pg)
                {
                    // If the property's name is "RemoveThisPropertyPlease", then
                    // store a reference to this property in a local variable,
                    // so we can remove it later.
                    if (property.Name == "RemoveThisPropertyPlease")
                    {
                        propertyToRemove = property;
                    }

                    // If the property's name is "OutputPath", change its value
                    // from "bin\debug\" to "bin\release\".
                    if (property.Name == "OutputPath")
                    {
                        property.Value = @"bin\release\";
                    }
                }

                // Remove the property named "RemoveThisPropertyPlease" from the
                // PropertyGroup
                if (propertyToRemove != null)
                {
                    pg.RemoveProperty(propertyToRemove);
                }

                // For each PropertyGroup that we found, add to the end of it
                // a new property called "MyNewProperty".
                pg.AddNewProperty("MyNewProperty", "MyNewValue");
            }

            // The project now looks like this:
            //
            //     <?xml version="1.0" encoding="utf-16"?>
            //     <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
            //         <Optimize>true</Optimize>
            //         <WarningLevel>4</WarningLevel>
            //         <MyNewProperty>MyNewValue</MyNewProperty>
            //         <OutputPath>bin\release</OutputPath>
            //         <MyNewProperty>MyNewValue</MyNewProperty>
            Console.WriteLine(project.Xml);
        }
    }
}

Module Module1

    ''' <summary>
    ''' This code demonstrates the use of the following methods:
    '''     Engine constructor
    '''     Project constructor
    '''     Project.LoadFromXml
    '''     Project.Xml
    '''     BuildPropertyGroupCollection.GetEnumerator
    '''     BuildPropertyGroup.GetEnumerator
    '''     BuildProperty.Name (get)
    '''     BuildProperty.Value (set)
    '''     BuildPropertyGroup.RemoveProperty
    '''     BuildPropertyGroup.AddNewProperty
    ''' </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 PropertyGroups.
        project.LoadXml( _
            "<Project xmlns='http://schemas.microsoft.com/developer/msbuild/2003'>" & _
                "<PropertyGroup>" & _
                    "<Optimize>true</Optimize>" & _
                    "<WarningLevel>4</WarningLevel>" & _
                "</PropertyGroup>" & _
                "<PropertyGroup>" & _
                    "<OutputPath>bin\debug\</OutputPath>" & _
                    "<RemoveThisPropertyPlease>1</RemoveThisPropertyPlease>" & _
                "</PropertyGroup>" & _
            "</Project>")

        ' Iterate through each PropertyGroup in the Project.  There are two.
        For Each pg As BuildPropertyGroup In project.PropertyGroups

            Dim propertyToRemove As BuildProperty
            propertyToRemove = Nothing

            ' Iterate through each Property in the PropertyGroup.
            For Each buildProperty As BuildProperty In pg

                ' If the property's name is "RemoveThisPropertyPlease", then
                ' store a reference to this property in a local variable,
                ' so we can remove it later.
                If buildProperty.Name = "RemoveThisPropertyPlease" Then
                    propertyToRemove = buildProperty
                End If

                ' If the property's name is "OutputPath", change its value
                ' from "bin\debug\" to "bin\release\".
                If buildProperty.Name = "OutputPath" Then
                    buildProperty.Value = "bin\release\"
                End If

            Next

            ' Remove the property named "RemoveThisPropertyPlease" from the
            ' PropertyGroup
            If Not propertyToRemove Is Nothing Then
                pg.RemoveProperty(propertyToRemove)
            End If

            ' For each PropertyGroup that we found, add to the end of it
            ' a new property called "MyNewProperty".
            pg.AddNewProperty("MyNewProperty", "MyNewValue")

        Next

        '  The project now looks like this:
        ' 
        '      <?xml version="1.0" encoding="utf-16"?>
        '      <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
        '          <Optimize>true</Optimize>
        '          <WarningLevel>4</WarningLevel>
        '          <MyNewProperty>MyNewValue</MyNewProperty>
        '          <OutputPath>bin\release</OutputPath>
        '          <MyNewProperty>MyNewValue</MyNewProperty>
        Console.WriteLine(project.Xml)

    End Sub

End Module

注解

BuildPropertyGroup对象可以表示项目中的元素或属性的虚拟集合, 如全局属性或环境变量属性。A BuildPropertyGroup object can represent a element in the project, or a virtual collection of properties, such as global properties or environment variable properties.

构造函数

属性

方法

扩展方法

适用于