单选题You need to ensure that when the button is clicked， both update panels update the tim without generating a postback. What should you do？（）AAdd the following marktip to UpdatePanel1. Triggers asp:PostBackTrigger ControlID=btnSave / /Triggers BSet the UpdateMode property for the UpdatePanel2 to AlwaysCAdd the following markup to UpdatePanel2 Triggers asp:AsyncPostBackTrigger ControlID=btnSave EventName=Click / /Triggers DSet the UpdateMode property for UpdatePanel2 to Conditional
单选题
You need to ensure that when the button is clicked， both update panels update the tim without generating a postback. What should you do？（）
A
Add the following marktip to UpdatePanel1. <Triggers> <asp:PostBackTrigger ControlID=btnSave /> </Triggers>
B
Set the UpdateMode property for the UpdatePanel2 to Always
C
Add the following markup to UpdatePanel2 <Triggers> <asp:AsyncPostBackTrigger ControlID=btnSave EventName=Click /> </Triggers>
D
Set the UpdateMode property for UpdatePanel2 to Conditional
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