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Capture Class

Represents the results from a single subexpression capture. Capture represents one substring for a single successful capture.

Namespace: System.Text.RegularExpressions
Assembly: System (in system.dll)

'Declaration
<SerializableAttribute> _
Public Class Capture
'Usage
Dim instance As Capture

/** @attribute SerializableAttribute() */ 
public class Capture
SerializableAttribute 
public class Capture

The object is immutable and has no public constructor. Instances are returned through the collection returned by Captures. The Match and Group classes extend Capture.

Dim text As String = "One fish two fish red fish blue fish"
Dim pat As String = "(?<1>\w+)\s+(?<2>fish)\s*"
' Compile the regular expression.
Dim r As New Regex(pat, RegexOptions.IgnoreCase)
' Match the regular expression pattern against a text string.
Dim m As Match = r.Match(text)        
While m.Success
   ' Display the first match and its capture set.
   System.Console.WriteLine("Match=[" + m.ToString() + "]")
   Dim cc As CaptureCollection = m.Captures
   Dim c As Capture
   For Each c In  cc
      System.Console.WriteLine("Capture=[" + c.ToString() + "]")
   Next c
   ' Display Group1 and its capture set.
   Dim g1 As Group = m.Groups(1)
   System.Console.WriteLine("Group1=[" + g1.ToString() + "]")
   Dim c1 As Capture
   For Each c1 In  g1.Captures
      System.Console.WriteLine("Capture1=[" + c1.ToString() + "]")
   Next c1
   ' Display Group2 and its capture set.
   Dim g2 As Group = m.Groups(2)
   System.Console.WriteLine("Group2=[" + g2.ToString() + "]")
   Dim c2 As Capture
   For Each c2 In  g2.Captures
      System.Console.WriteLine("Capture2=[" + c2.ToString() + "]")
   Next c2
   ' Advance to the next match.
   m = m.NextMatch()
End While

String text = "One car red car blue car";
String pat = "(?<1>\\w+)\\s+(?<2>car)\\s*";

// Compile the regular expression.
Regex r = new Regex(pat, RegexOptions.IgnoreCase);
// Match the regular expression pattern against a text string.
Match m = r.Match(text);

while (m.get_Success()) {
    // Display the first match and its capture set.
    System.Console.WriteLine("Match=[" + m + "]");
    CaptureCollection cc = m.get_Captures();
    for (int iCtr = 0; iCtr < cc.get_Count(); iCtr++) {
        Capture c = (Capture)cc.get_Item(iCtr);
        System.Console.WriteLine("Capture=[" + c + "]");
    }

    // Display Group1 and its capture set.
    Group g1 = m.get_Groups().get_Item(1);
    System.Console.WriteLine("Group1=[" + g1 + "]");
    for (int iCtr = 0; iCtr < g1.get_Captures().get_Count(); iCtr++) {
        Capture c1 = (Capture)g1.get_Captures().get_Item(iCtr);
        System.Console.WriteLine("Capture1=[" + c1 + "]");
    }

    // Display Group2 and its capture set.
    Group g2 = m.get_Groups().get_Item(2);
    System.Console.WriteLine("Group2=[" + g2 + "]");
    for (int iCtr = 0; iCtr < g2.get_Captures().get_Count(); iCtr++) {
        Capture c2 = (Capture)g2.get_Captures().get_Item(iCtr);
        System.Console.WriteLine("Capture2=[" + c2 + "]");
    }

    // Advance to the next match.
    m = m.NextMatch();
}

var text : String = "One car red car blue car";
var pat : String = "(?<1>\\w+)\\s+(?<2>fish)\\s*";
// Compile the regular expression.
var r : Regex = new Regex(pat, RegexOptions.IgnoreCase);
// match the regex pattern against a text string
var m : Match = r.Match(text);
while (m.Success) {
    // Display the first match and its capture set.
    System.Console.WriteLine("Match=[" + m + "]");
    var cc : CaptureCollection = m.Captures;
    for (var c : Capture in cc) {
        System.Console.WriteLine("Capture=[" + c + "]");
    }
    // display Group1 and its capture set.
    var g1 : Group = m.Groups[1];
    System.Console.WriteLine("Group1=[" + g1 + "]");
    for (var c1 : Capture in g1.Captures) {
        System.Console.WriteLine("Capture1=[" + c1 + "]");
    }
    // display Group2 and its capture set.
    var g2 : Group = m.Groups[2];
    System.Console.WriteLine("Group2=["+ g2 + "]");
    for (var c2 : Capture in g2.Captures) {
        System.Console.WriteLine("Capture2=[" + c2 + "]");
    }
    // advance to the next match.
    m = m.NextMatch();
}

System.Object
  System.Text.RegularExpressions.Capture
     System.Text.RegularExpressions.Group

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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