NET AJAX CONTROL TOOLKIT (PART 1) 151
Color | Width="170" AutoPostBack="true" OnSelectedIndexChanged="DropDownList3
SelectedIndexChanged" />
| TargetControlID="DropDownList1" Category="Make"
PromptText="Please select a make"
LoadingText="[Loading makes...]"
ServicePath="CarsService.asmx"
ServiceMethod="GetDropDownContents" />
TargetControlID="DropDownList2" Category="Model"
PromptText="Please select a model"
LoadingText="[Loading models...]"
ServiceMethod="GetDropDownContentsPageMethod"
ParentControlID="DropDownList1" />
TargetControlID="DropDownList3" Category="Color"
PromptText="Please select a color" LoadingText="[Loading
colors...]" ServicePath="CarsService.asmx"
ServiceMethod="GetDropDownContents" ParentControlID="DropDownList2" />
...
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