如何使用StreamReader读取嵌入式资源（文本文件）并将其作为字符串返回？我当前的脚本使用Windows窗体和文本框，允许用户查找和替换未嵌入的文本文件中的文本。
private void button1_Click(object sender, EventArgs e)
{
StringCollection strValuesToSearch = new StringCollection();
strValuesToSearch.Add("Apple");
string stringToReplace;
stringToReplace = textBox1.Text;
StreamReader FileReader = new StreamReader(@"C:\MyFile.txt");
string FileContents;
FileContents = FileReader.ReadToEnd();
FileReader.Close();
foreach (string s in strValuesToSearch)
{
if (FileContents.Contains(s))
FileContents = FileContents.Replace(s, stringToReplace);
}
StreamWriter FileWriter = new StreamWriter(@"MyFile.txt");
FileWriter.Write(FileContents);
FileWriter.Close();
}
通过您的所有能力，我使用这个助手类以通用方式从任何程序集和任何命名空间读取资源。
public class ResourceReader
{
public static IEnumerable<string> FindEmbededResources<TAssembly>(Func<string, bool> predicate)
{
if (predicate == null) throw new ArgumentNullException(nameof(predicate));
return
GetEmbededResourceNames<TAssembly>()
.Where(predicate)
.Select(name => ReadEmbededResource(typeof(TAssembly), name))
.Where(x => !string.IsNullOrEmpty(x));
}
public static IEnumerable<string> GetEmbededResourceNames<TAssembly>()
{
var assembly = Assembly.GetAssembly(typeof(TAssembly));
return assembly.GetManifestResourceNames();
}
public static string ReadEmbededResource<TAssembly, TNamespace>(string name)
{
if (string.IsNullOrEmpty(name)) throw new ArgumentNullException(nameof(name));
return ReadEmbededResource(typeof(TAssembly), typeof(TNamespace), name);
}
public static string ReadEmbededResource(Type assemblyType, Type namespaceType, string name)
{
if (assemblyType == null) throw new ArgumentNullException(nameof(assemblyType));
if (namespaceType == null) throw new ArgumentNullException(nameof(namespaceType));
if (string.IsNullOrEmpty(name)) throw new ArgumentNullException(nameof(name));
return ReadEmbededResource(assemblyType, $"{namespaceType.Namespace}.{name}");
}
public static string ReadEmbededResource(Type assemblyType, string name)
{
if (assemblyType == null) throw new ArgumentNullException(nameof(assemblyType));
if (string.IsNullOrEmpty(name)) throw new ArgumentNullException(nameof(name));
var assembly = Assembly.GetAssembly(assemblyType);
using (var resourceStream = assembly.GetManifestResourceStream(name))
{
if (resourceStream == null) return null;
using (var streamReader = new StreamReader(resourceStream))
{
return streamReader.ReadToEnd();
}
}
}
}
public class AssemblyTextFileReader
{
private readonly Assembly _assembly;
public AssemblyTextFileReader(Assembly assembly)
{
_assembly = assembly ?? throw new ArgumentNullException(nameof(assembly));
}
public async Task<string> ReadFileAsync(string fileName)
{
var resourceName = _assembly.GetManifestResourceName(fileName);
using (var stream = _assembly.GetManifestResourceStream(resourceName))
{
using (var reader = new StreamReader(stream))
{
return await reader.ReadToEndAsync();
}
}
}
}
public static class AssemblyExtensions
{
public static string GetManifestResourceName(this Assembly assembly, string fileName)
{
string name = assembly.GetManifestResourceNames().SingleOrDefault(n => n.EndsWith(fileName, StringComparison.InvariantCultureIgnoreCase));
if (string.IsNullOrEmpty(name))
{
throw new FileNotFoundException($"Embedded file '{fileName}' could not be found in assembly '{assembly.FullName}'.", fileName);
}
return name;
}
}
// To use the code above:
var reader = new AssemblyTextFileReader(assembly);
string text = await reader.ReadFileAsync(@"MyFile.txt");
