DataSet.WriteXmlSchema 方法

定義

命名空間:

System.Data

組件:

netstandard.dll, System.Data.Common.dll

將結構寫 DataSet 成 XML 架構。

多載

名稱	Description
WriteXmlSchema(String, Converter<Type,String>)	將 DataSet 結構以 XML 架構寫入檔案。
WriteXmlSchema(Stream)	將 DataSet 結構以 XML 架構寫入指定的 Stream 物件。
WriteXmlSchema(TextWriter)	將 DataSet 結構以 XML 架構寫入指定的 TextWriter 物件。
WriteXmlSchema(String)	將 DataSet 結構以 XML 架構寫入檔案。
WriteXmlSchema(XmlWriter)	將 DataSet 結構寫成 XML 架構到 XmlWriter 物件上。
WriteXmlSchema(Stream, Converter<Type,String>)	將 DataSet 結構以 XML 架構寫入指定的 Stream 物件。
WriteXmlSchema(TextWriter, Converter<Type,String>)	將 DataSet 結構寫成指定的 XML 結構 TextWriter。
WriteXmlSchema(XmlWriter, Converter<Type,String>)	將 DataSet 結構寫成指定的 XML 結構 XmlWriter。

WriteXmlSchema(String, Converter<Type,String>)

來源:

DataSet.cs

將 DataSet 結構以 XML 架構寫入檔案。

public:
 void WriteXmlSchema(System::String ^ fileName, Converter<Type ^, System::String ^> ^ multipleTargetConverter);

[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Members from serialized types may use dynamic code generation.")]
[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")]
public void WriteXmlSchema(string fileName, Converter<Type,string> multipleTargetConverter);

[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Members from serialized types may use dynamic code generation.")>]
[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")>]
member this.WriteXmlSchema : string * Converter<Type, string> -> unit

Public Sub WriteXmlSchema (fileName As String, multipleTargetConverter As Converter(Of Type, String))

參數

fileName

String

要寫入的檔案名稱。

multipleTargetConverter

Converter<Type,String>

一位代表曾轉 Type 為繩索。

屬性

RequiresDynamicCodeAttribute RequiresUnreferencedCodeAttribute

WriteXmlSchema(Stream)

來源:

DataSet.cs

將 DataSet 結構以 XML 架構寫入指定的 Stream 物件。

public:
 void WriteXmlSchema(System::IO::Stream ^ stream);

[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Members from serialized types may use dynamic code generation.")]
[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")]
public void WriteXmlSchema(System.IO.Stream? stream);

[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Members from serialized types may use dynamic code generation.")>]
[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")>]
member this.WriteXmlSchema : System.IO.Stream -> unit

Public Sub WriteXmlSchema (stream As Stream)

參數

stream

Stream

一個 Stream 用來寫入檔案的物件。

屬性

RequiresDynamicCodeAttribute RequiresUnreferencedCodeAttribute

範例

以下範例建立一個新 FileStream 物件，該物件會傳遞給寫入結構到磁碟的方法 WriteXmlSchema 。

private void WriteSchemaWithFileStream(DataSet thisDataSet)
{
    // Set the file path and name. Modify this for your purposes.
    string filename="Schema.xml";

    // Create the FileStream object with the file name.
    // Use FileMode.Create.
    System.IO.FileStream stream =
        new System.IO.FileStream(filename,System.IO.FileMode.Create);

    // Write the schema to the file.
    thisDataSet.WriteXmlSchema(stream);

    // Close the FileStream.
    stream.Close();
}

Private Sub WriteSchemaWithFileStream(thisDataSet As DataSet)
    ' Set the file path and name. Modify this for your purposes.
    Dim filename As String = "Schema.xml"

    ' Create the FileStream object with the file name. 
    ' Use FileMode.Create.
    Dim stream As New System.IO.FileStream _
        (filename, System.IO.FileMode.Create)

    ' Write the schema to the file.
    thisDataSet.WriteXmlSchema(stream)

    ' Close the FileStream.
    stream.Close()
End Sub

備註

使用 WriteXmlSchema 將 a 的結構 DataSet 寫成 XML 文件的方法。 該結構包含表格、關聯與約束定義。 要為 XML 文件撰寫結構，請使用該 WriteXmlSchema 方法。

XML 架構是依據 XSD 標準撰寫的。

若要將資料寫入 XML 文件，請使用以下 WriteXml 方法。

由 Stream 衍生的類別包括 BufferedStream、 FileStream、 MemoryStream、 NetworkStream和 。

另請參閱

• 使用 ADO.NET

WriteXmlSchema(TextWriter)

來源:

DataSet.cs

將 DataSet 結構以 XML 架構寫入指定的 TextWriter 物件。

public:
 void WriteXmlSchema(System::IO::TextWriter ^ writer);

[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Members from serialized types may use dynamic code generation.")]
[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")]
public void WriteXmlSchema(System.IO.TextWriter? writer);

[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Members from serialized types may use dynamic code generation.")>]
[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")>]
member this.WriteXmlSchema : System.IO.TextWriter -> unit

Public Sub WriteXmlSchema (writer As TextWriter)

參數

writer

TextWriter

用 TextWriter 來寫作的對象。

屬性

RequiresDynamicCodeAttribute RequiresUnreferencedCodeAttribute

範例

以下範例會建立 System.Text.StringBuilder 一個物件，用來建立新的 System.IO.StringWriter。 StringWriter將 傳遞給WriteXmlSchema方法，產生的字串會印到主控台視窗。

private void WriteSchemaWithStringWriter(DataSet thisDataSet)
{
    // Create a new StringBuilder object.
    System.Text.StringBuilder builder = new System.Text.StringBuilder();

    // Create the StringWriter object with the StringBuilder object.
    System.IO.StringWriter writer = new System.IO.StringWriter(builder);

    // Write the schema into the StringWriter.
    thisDataSet.WriteXmlSchema(writer);

    // Print the string to the console window.
    Console.WriteLine(writer.ToString());
}

Private Sub WriteSchemaWithStringWriter(thisDataSet As DataSet)
    ' Create a new StringBuilder object.
    Dim builder As New System.Text.StringBuilder()

    ' Create the StringWriter object with the StringBuilder object.
    Dim writer As New System.IO.StringWriter(builder)

    ' Write the schema into the StringWriter.
    thisDataSet.WriteXmlSchema(writer)

    ' Print the string to the console window.
    Console.WriteLine(writer.ToString())
End Sub

備註

使用 WriteXmlSchema 將 a 的結構 DataSet 寫成 XML 文件的方法。 該結構包含表格、關聯與約束定義。 要為 XML 文件撰寫結構，請使用該 WriteXmlSchema 方法。

XML 架構是依據 XSD 標準撰寫的。

若要將資料寫入 XML 文件，請使用以下 WriteXml 方法。

從該System.IO.TextWriter類別推導的類別包括 System.Web.HttpWriter、 System.CodeDom.Compiler.IndentedTextWriter、 System.Web.UI.HtmlTextWriterSystem.IO.StreamWriterSystem.IO.StringWriter、 和 。

另請參閱

• 使用 ADO.NET

WriteXmlSchema(String)

來源:

DataSet.cs

將 DataSet 結構以 XML 架構寫入檔案。

public:
 void WriteXmlSchema(System::String ^ fileName);

[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Members from serialized types may use dynamic code generation.")]
[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")]
public void WriteXmlSchema(string fileName);

[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Members from serialized types may use dynamic code generation.")>]
[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")>]
member this.WriteXmlSchema : string -> unit

Public Sub WriteXmlSchema (fileName As String)

參數

fileName

String

要寫入的檔名（包括路徑）。

屬性

RequiresDynamicCodeAttribute RequiresUnreferencedCodeAttribute

例外狀況

SecurityException

FileIOPermission 並未設定為 Write。

範例

private void WriteSchemaToFile(DataSet thisDataSet)
{
    // Set the file path and name. Modify this for your purposes.
    string filename="Schema.xml";

    // Write the schema to the file.
    thisDataSet.WriteXmlSchema(filename);
}

Private Sub WriteSchemaToFile(thisDataSet As DataSet)
    ' Set the file path and name. Modify this for your purposes.
    Dim filename As String = "Schema.xml"

    ' Write the schema to the file.
    thisDataSet.WriteXmlSchema(filename)
End Sub

備註

使用 WriteXmlSchema 將 a 的結構 DataSet 寫成 XML 文件的方法。 該結構包含表格、關聯與約束定義。 要為 XML 文件撰寫結構，請使用該 WriteXmlSchema 方法。

XML 架構是依據 XSD 標準撰寫的。

若要將資料寫入 XML 文件，請使用以下 WriteXml 方法。

另請參閱

• 使用 ADO.NET

WriteXmlSchema(XmlWriter)

來源:

DataSet.cs

將 DataSet 結構寫成 XML 架構到 XmlWriter 物件上。

public:
 void WriteXmlSchema(System::Xml::XmlWriter ^ writer);

[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Members from serialized types may use dynamic code generation.")]
[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")]
public void WriteXmlSchema(System.Xml.XmlWriter? writer);

[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Members from serialized types may use dynamic code generation.")>]
[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")>]
member this.WriteXmlSchema : System.Xml.XmlWriter -> unit

Public Sub WriteXmlSchema (writer As XmlWriter)

參數

writer

XmlWriter

寫信的對象 XmlWriter 。

屬性

RequiresDynamicCodeAttribute RequiresUnreferencedCodeAttribute

範例

以下範例 System.IO.FileStream 建立一個帶有指定路徑的新物件。 FileStream物件用來創造物件XmlTextWriter。 接著會用物件呼叫WriteXmlSchema該XmlTextWriter方法，將結構寫入磁碟。

private void WriteSchemaWithXmlTextWriter(DataSet thisDataSet)
{
    // Set the file path and name. Modify this for your purposes.
    string filename="SchemaDoc.xml";

    // Create a FileStream object with the file path and name.
    System.IO.FileStream stream = new System.IO.FileStream
        (filename,System.IO.FileMode.Create);

    // Create a new XmlTextWriter object with the FileStream.
    System.Xml.XmlTextWriter writer =
        new System.Xml.XmlTextWriter(stream,
        System.Text.Encoding.Unicode);

    // Write the schema into the DataSet and close the reader.
    thisDataSet.WriteXmlSchema(writer );
    writer.Close();
}

Private Sub WriteSchemaWithXmlTextWriter(thisDataSet As DataSet)
    ' Set the file path and name. Modify this for your purposes.
    Dim filename As String = "SchemaDoc.xml"

    ' Create a FileStream object with the file path and name.
    Dim stream As New System.IO.FileStream _
       (filename, System.IO.FileMode.Create)

    ' Create a new XmlTextWriter object with the FileStream.
    Dim writer As New System.Xml.XmlTextWriter _
       (stream, System.Text.Encoding.Unicode)

    ' Write the schema into the DataSet and close the reader.
    thisDataSet.WriteXmlSchema(writer)
    writer.Close()
End Sub

備註

使用 WriteXmlSchema 將 a 的結構 DataSet 寫成 XML 文件的方法。 該結構包含表格、關聯與約束定義。 要為 XML 文件撰寫結構，請使用該 WriteXmlSchema 方法。

XML 架構是依據 XSD 標準撰寫的。

若要將資料寫入 XML 文件，請使用以下 WriteXml 方法。

繼承自該System.Xml.XmlWriter類別的一個類別是 。XmlTextWriter

另請參閱

• 使用 ADO.NET

WriteXmlSchema(Stream, Converter<Type,String>)

來源:

DataSet.cs

將 DataSet 結構以 XML 架構寫入指定的 Stream 物件。

public:
 void WriteXmlSchema(System::IO::Stream ^ stream, Converter<Type ^, System::String ^> ^ multipleTargetConverter);

[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Members from serialized types may use dynamic code generation.")]
[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")]
public void WriteXmlSchema(System.IO.Stream? stream, Converter<Type,string> multipleTargetConverter);

[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Members from serialized types may use dynamic code generation.")>]
[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")>]
member this.WriteXmlSchema : System.IO.Stream * Converter<Type, string> -> unit

Public Sub WriteXmlSchema (stream As Stream, multipleTargetConverter As Converter(Of Type, String))

參數

stream

Stream

一個 Stream 可以寫入的物件。

multipleTargetConverter

Converter<Type,String>

一位代表曾轉 Type 為繩索。

屬性

RequiresDynamicCodeAttribute RequiresUnreferencedCodeAttribute

WriteXmlSchema(TextWriter, Converter<Type,String>)

來源:

DataSet.cs

將 DataSet 結構寫成指定的 XML 結構 TextWriter。

public:
 void WriteXmlSchema(System::IO::TextWriter ^ writer, Converter<Type ^, System::String ^> ^ multipleTargetConverter);

[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Members from serialized types may use dynamic code generation.")]
[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")]
public void WriteXmlSchema(System.IO.TextWriter? writer, Converter<Type,string> multipleTargetConverter);

[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Members from serialized types may use dynamic code generation.")>]
[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")>]
member this.WriteXmlSchema : System.IO.TextWriter * Converter<Type, string> -> unit

Public Sub WriteXmlSchema (writer As TextWriter, multipleTargetConverter As Converter(Of Type, String))

參數

writer

TextWriter

一個 TextWriter 可以寫入的物件。

multipleTargetConverter

Converter<Type,String>

一位代表曾轉 Type 為繩索。

屬性

RequiresDynamicCodeAttribute RequiresUnreferencedCodeAttribute

WriteXmlSchema(XmlWriter, Converter<Type,String>)

來源:

DataSet.cs

將 DataSet 結構寫成指定的 XML 結構 XmlWriter。

public:
 void WriteXmlSchema(System::Xml::XmlWriter ^ writer, Converter<Type ^, System::String ^> ^ multipleTargetConverter);

[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Members from serialized types may use dynamic code generation.")]
[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")]
public void WriteXmlSchema(System.Xml.XmlWriter? writer, Converter<Type,string> multipleTargetConverter);

[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Members from serialized types may use dynamic code generation.")>]
[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")>]
member this.WriteXmlSchema : System.Xml.XmlWriter * Converter<Type, string> -> unit

Public Sub WriteXmlSchema (writer As XmlWriter, multipleTargetConverter As Converter(Of Type, String))

參數

writer

XmlWriter

一個 XmlWriter 可以寫入的物件。

multipleTargetConverter

Converter<Type,String>

一位代表曾轉 Type 為繩索。

屬性

RequiresDynamicCodeAttribute RequiresUnreferencedCodeAttribute