[原創]如何得到RadioButtonList 中的選中值

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< asp:RadioButtonList id ="RadioButtonList1" style ="Z-INDEX: 102; LEFT: 16px; POSITION: absolute; TOP: 144px"

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runat ="server" >

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< asp:ListItem Value ="a" > a </ asp:ListItem >

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< asp:ListItem Value ="b" Selected ="True" > b </ asp:ListItem >

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< asp:ListItem Value ="c" > c </ asp:ListItem >

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</ asp:RadioButtonList >

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< script language = " javascript " >

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function getRadio()

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{

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var opts = document.all( " RadioButtonList1 " );

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if (opts)

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{

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for ( var i = 0 ; i < opts.length; i ++ )

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{

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if (opts[i].checked)

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{

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alert(i);

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break ;

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}

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}

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}

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}

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getRadio();

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</ script >