String.Contains Method
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Returns a value indicating whether the specified String object occurs within this string.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- value
- Type: System.String
The string to seek.
Return Value
Type: System.Booleantrue if the value parameter occurs within this string, or if value is the empty string (""); otherwise, false.
| Exception | Condition |
|---|---|
| ArgumentNullException | value is null. |
The following code example determines whether the string "fox" is a substring of a familiar quotation.
// This example demonstrates the String.Contains() method using System; class Example { public static void Demo(System.Windows.Controls.TextBlock outputBlock) { string s1 = "The quick brown fox jumps over the lazy dog"; string s2 = "fox"; bool b; b = s1.Contains(s2); outputBlock.Text += String.Format("Is the string, s2, in the string, s1?: {0}", b) + "\n"; } } /* This example produces the following results: Is the string, s2, in the string, s1?: True */
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