{"id":456,"date":"2010-10-01T02:32:40","date_gmt":"2010-10-01T02:32:40","guid":{"rendered":"http:\/\/enjoyasp.net\/?p=456"},"modified":"2010-10-01T02:32:40","modified_gmt":"2010-10-01T02:32:40","slug":"_dopostback","status":"publish","type":"post","link":"https:\/\/enjoyasp.net\/index.php\/2010\/10\/01\/_dopostback\/","title":{"rendered":"_doPostBack"},"content":{"rendered":"

?<\/p>\n

?<input?type=”hidden”?name=”__EVENTTARGET”?id=”__EVENTTARGET”?value=””?\/> <input?type=”hidden”?name=”__EVENTARGUMENT”?id=”__EVENTARGUMENT”?value=””?\/> function?__doPostBack(eventTarget,?eventArgument)?{ if?(!theForm.onsubmit?||?(theForm.onsubmit()?!=?false))?{ theForm.__EVENTTARGET.value?=?eventTarget; theForm.__EVENTARGUMENT.value?=?eventArgument; theForm.submit(); } }<\/p>\n

1\uff0ceventTarget? \u4ee3\u8868\u63a7\u4ef6ID, eventArgument\u4ee3\u8868\u63a7\u4ef6\u5bf9\u5e94\u7684\u6570\u636e \u53ef\u7528\uff1a Request.Form[“__EVENTTARGET”] \u5f62\u5f0f\u83b7\u53d6ID,\u53c2\u6570\u3002\u7279\u522b\u5728\u7528CheckBoxList\u65f6\uff0c\u5728\u5176OnSelectedIndexChanged\u4e8b\u4ef6\u4e2d\u53ef\u901a\u8fc7\u5982\u4e0b\u65b9\u5f0f\u83b7\u53d6\u70b9\u51fb\u7684CheckBox:
\n?? ? string ClickedItem = Request.Form[“__EVENTTARGET”];\/\/\u5f97\u5230\u7528\u6237\u70b9\u51fb\u7684\u662f\u54ea\u4e2a<\/strong>
\n????? ClickedItem = ClickedItem.Split(‘$’)[1];\/\/\u8fdb\u884c\u62c6\u5206\u5904\u7406
\n???? chkDepartlist.Items[StringHelper.FormatBlankStringToint(ClickedItem)].Value) \/\/\u5f53\u524d\u70b9\u51fb\u7684CheckBox<\/p>\n

2, Button\u4e0eImageButton\u4e0d\u53ef\u901a\u8fc7\u4e0a\u8ff0\u65b9\u5f0f\u5f97\u5230ID,\u56e0\u4e3a\u4ed6\u4eec\u6ca1\u6709\u8c03\u7528 _doPostBack \u65b9\u6cd5\uff0c\u662f\u76f4\u63a5submit\u7684\u65b9\u5f0f
\n?? \u4e0d\u8fc7\u53ef\u7528\u5982\u4e0b\u65b9\u5f0f\u66ff\u6362\uff1a
\n?? ???? <input?type=”button”?id=”Button2″?value=”Press?me”?onclick=”DoPostBack()”?\/>?? <!–\u663e\u793a\u8c03\u7528–>
\n??? ??? ?<script?language=”javascript”?type=”text\/javascript”> ?
\n?? ??? ??? ??? ?function?DoPostBack()? { ??__doPostBack(‘Button2′,’My?Argument’);????? } ?
\n?? ??? ??? ?<\/script> string?passedArgument?=?Request.Params.Get(“__EVENTARGUMENT”);<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

? ?<input?type=”hidden”?name=”__EV […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-456","post","type-post","status-publish","format-standard","hentry","category-aspdotnet"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/posts\/456","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/comments?post=456"}],"version-history":[{"count":0,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/posts\/456\/revisions"}],"wp:attachment":[{"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/media?parent=456"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/categories?post=456"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/enjoyasp.net\/index.php\/wp-json\/wp\/v2\/tags?post=456"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}