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This article will explain in detail how to use JS and C# to pull the box for read-only under the front-end and back-end control respectively. The editor thinks it is very practical, so I hope you can get something after reading this article.

During the code, back up the code segments that are better in the code writing process. The following information is about the code that uses JS and C# to pull the box as read-only under the front-end and back-end control respectively, which should be of great use to all friends.

The drop-down box simulates function setReadOnly (obj_id) {var obj = document.getElementById (obj_id); obj.onmouseover = function () {obj.setCapture ();} obj.onmouseout = function () {obj.releaseCapture ();} obj.onfocus = function () {obj.blur ();} obj.onbeforeactivate = function () {return false;}} AAAAAAAAA BBBBBBBBB CCCCCCCCC DDDDDDDDD setReadOnly ("span_select") Asp.net backend C# code this.ddlSysCategory.Attributes.Add ("onfocus", "this.blur ();"); this.ddlSysCategory.Attributes.Add ("onbeforeactivate", "return false"); this.ddlSysCategory.Attributes.Add ("onmouseover", "this.setCapture ()"); this.ddlSysCategory.Attributes.Add ("onmouseout", "this.releaseCapture ()") On "how to use JS and C# in the front-end and back-end control of the pull-down box for read-only" this article is shared here, I hope the above content can be of some help to you, so that you can learn more knowledge, if you think the article is good, please share it for more people to see.

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