22 lines
1.5 KiB
XML
22 lines
1.5 KiB
XML
<?xml version="1.0"?>
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<clause number="22.2" title="Delegate instantiation">
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<paragraph>An instance of a delegate is created by a <non_terminal where="14.5.10.3">delegate-creation-expression</non_terminal> (<hyperlink>14.5.10.3</hyperlink>). The newly created delegate instance then refers to either: <list><list_item> The static method referenced in the <non_terminal where="14.5.10.3">delegate-creation-expression</non_terminal>, or </list_item><list_item> The target object (which cannot be null) and instance method referenced in the <non_terminal where="14.5.10.3">delegate-creation-expression</non_terminal>, or </list_item><list_item> Another delegate <example>[Example: For example: <code_example><![CDATA[
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delegate void D(int x);
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class Test
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{
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public static void M1(int i) {...}
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public void M2(int i) {...}
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}
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class Demo
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{
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static void Main() {
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D cd1 = new D(Test.M1); // static method
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Test t = new Test();
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D cd2 = new D(t.M2); // instance method
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D cd3 = new D(cd2); // another delegate
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}
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}
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]]></code_example>end example]</example> </list_item></list></paragraph>
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<paragraph>Once instantiated, delegate instances always refer to the same target object and method. <note>[Note: Remember, when two delegates are combined, or one is removed from another, a new delegate results with its own invocation list; the invocation lists of the delegates combined or removed remain unchanged. end note]</note> </paragraph>
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</clause>
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