摘要：
共收集了四种解决方案不知道哪些方案在你的工程中适用：1 在 page_load 里加上如下代码：string beforeSubmitJS = “\nvar exportRequested = false; \n”; beforeSubmitJS += “var beforeFormSubmitFunction = theForm.onsubmit;\n”; beforeSubmitJS += “theForm.onsubmit = function(){ \n”; beforeSubmitJS += “var returnVal = beforeFormSubmitFunction(); \ 阅读全文