如何在 Devexpress MVC GridView 上获取选定的行？

Question

我想一次获取在 Devexpress MVC GridView 上选择的行。不是在每个点击的项目上。

Answer 1

参考：How to get all GridView selected keys and pass them to a Controller

您可以在客户端收集所有选定的值（例如，键） 通过ASPxClientGridView.GetSelectedFieldValues 方法和 将它们传递给：

• 通过 e.customArgs 字典 (Passing Values to Controller Action Through Callbacks) 的 GridView 回调操作；
• 任何控制器都通过隐藏的输入元素发布操作。

示例代码sn-p：

<script type="text/javascript">
    var selectedIDs;
    function OnBeginCallback(s, e) {
        //Pass all selected keys to GridView callback action
        e.customArgs["selectedIDs"] = selectedIDs;
    }
    function OnSelectionChanged(s, e) {
        s.GetSelectedFieldValues("PersonID", GetSelectedFieldValuesCallback);
    }
    function GetSelectedFieldValuesCallback(values) {
        //Capture all selected keys
        selectedIDs = "";
        for (var index = 0; index < values.length; index++) {
            selectedIDs += values[index] + ",";
        }
        if (selectedIDs.length > 0)
            selectedIDs = selectedIDs.substring(0, selectedIDs.length - 1);
    }
    function OnClick(s, e) {
        //Show all selected keys on client side
        alert(selectedIDs);
    }
    function OnSubmitClick(s, e) {
        //Write all selected keys to hidden input. Pass them on post action.
        $("#selectedIDsHF").val(selectedIDs);
    }
</script>

控制器

namespace Sample.Controllers {
    public class HomeController : Controller {
        PersonsList list = new PersonsList();

        [HttpGet]
        public ActionResult Index() {
            return View(list.GetPersons());
        }

        [HttpPost]
        public ActionResult Index(string selectedIDsHF) {
            //Get all selected keys from hidden input
            string _selectedIDs = selectedIDsHF;

            return View(list.GetPersons());
        }

        public ActionResult GridViewEditingPartial() {
            //Get all selected keys from e.customArgs on GridView callback
            string _selectedIDs = Request.Params["selectedIDs"];
            ViewData["_selectedIDs"] = _selectedIDs;

            return PartialView(list.GetPersons());
        }

    }
}

注意：客户端GetSelectedKeysOnPage Method返回当前页面中显示的选定行的键值。

参考：
GridView - How to get selected rows as an action parameter
GridView - How to get values of selected rows in the Controller's Action
How do I get my selected GridView rows into a Javascript variable?
DevExpress MVC GridView - How to get cell click event
How to highlight a particular row in a page of a DevExpress MVC GridView?