我目前正在设计一个网络应用程序,我希望从提交表格中获取一个价值,但获得一种类型的不匹配:
类型不匹配;发现:连接。 选择要求:(a) =>
我的法典认为:
var value=0
"name=value" #> SHtml.onSubmit(s => asInt(s).foreach(value= _)) &
// when the form is submitted, process the variable
"type=submit" #> SHtml.onSubmitUnit(askForHumanMove)
以及我对人类提出的要求 循环方法:
def askForHumanMove(board: connectfour.Board): Option[Int] = {
Some(value)
}
希望有些人能够帮助我处理这种不匹配问题。
谢谢!
Best regards, John
参看<代码>onSubmitUnit接受=> 任何作为参数。 但是,你正在采用一种将取消为<条码>/Board => 备选案文[Int]的方法。 这些类型不兼容。
您在请设<代码>onSubmitUnit方法时是否具备Board的相关实例? 如果是的话,固定办法简单:
"type=submit" #> SHtml.onSubmitUnit( () => askForHumanMove(board) )
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