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StringReader Constructor

Initializes a new instance of the StringReader class that reads from the specified string.

[Visual Basic]
Public Sub New( _
   ByVal s As String _
)
[C#]
public StringReader(
   string s
);
[C++]
public: StringReader(
   String* s
);
[JScript]
public function StringReader(
   s : String
);

Parameters

s
The string to which the StringReader should be initialized.

Exceptions

Exception Type Condition
ArgumentNullException The s parameter is a null reference (Nothing in Visual Basic).

Remarks

The following table lists examples of other typical or related I/O tasks.

To do this... See the example in this topic...
Create a text file. Writing Text to a File
Write to a text file. Writing Text to a File
Read from a text file. Reading Text from a File
Append text to a file. Opening and Appending to a Log File

File.AppendText

FileInfo.AppendText

Get the size of a file. FileInfo.Length
Get the attributes of a file. File.GetAttributes
Set the attributes of a file. File.SetAttributes
Determine if a file exists. File.Exists
Read from a binary file. Reading and Writing to a Newly Created Data File
Write to a binary file. Reading and Writing to a Newly Created Data File

Example

[Visual Basic, C#, C++] This code example is part of a larger example provided for the StringReader class.

[Visual Basic] 
' From textReaderText, create a continuous paragraph 
' with two spaces between each sentence.
Dim aLine, aParagraph As String
Dim strReader As New StringReader(textReaderText)
While True
    aLine = strReader.ReadLine()
    If aLine Is Nothing Then
        aParagraph = aParagraph & vbCrLf
        Exit While
    Else
        aParagraph = aParagraph & aLine & " "
    End If
End While
Console.WriteLine("Modified text:" & vbCrLf & vbCrLf & _ 
    aParagraph)

[C#] 
// From textReaderText, create a continuous paragraph 
// with two spaces between each sentence.
string aLine, aParagraph = null;
StringReader strReader = new StringReader(textReaderText);
while(true)
{
    aLine = strReader.ReadLine();
    if(aLine != null)
    {
        aParagraph = aParagraph + aLine + " ";
    }
    else
    {
        aParagraph = aParagraph + "\n";
        break;
    }
}
Console.WriteLine("Modified text:\n\n{0}", aParagraph);

[C++] 
// From textReaderText, create a continuous paragraph 
// with two spaces between each sentence.
String* aLine, * aParagraph;
StringReader* strReader  = new StringReader(textReaderText);
while(true)
{
    aLine = strReader->ReadLine();
    if(aLine != 0)
    {
        aParagraph = 
            String::Concat(aParagraph, aLine, " ");
    }
    else
    {
        aParagraph = String::Concat(aParagraph, "\n");
        break;
    }
}
Console::WriteLine("Modified text:\n\n{0}", aParagraph);

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, .NET Compact Framework, Common Language Infrastructure (CLI) Standard

See Also

StringReader Class | StringReader Members | System.IO Namespace | Working with I/O | Reading Text from a File | Writing Text to a File

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