系列索引
Web jquery表格组件 JQGrid 的使用 - 从入门到精通 开篇及索引
Web jquery表格组件 JQGrid 的使用 - 4.JQGrid参数、ColModel API、事件及方法
Web jquery表格组件 JQGrid 的使用 - 5.Pager翻页、搜索、格式化、自定义按钮
Web jquery表格组件 JQGrid 的使用 - 6.准备工作 & Hello JQGrid
Web jquery表格组件 JQGrid 的使用 - 7.查询数据、编辑数据、删除数据
Web jquery表格组件 JQGrid 的使用 - 8.Pager、新增数据、查询、刷新、查看数据
Web jquery表格组件 JQGrid 的使用 - 全部代码
Web jquery表格组件 JQGrid 的使用 - 11.问题研究
目录
9.http handler 里的全部代码
10.前端的全部代码
9.http handler 里的全部代码
public class UserHandler : IHttpHandler { public void ProcessRequest(HttpContext context) { //查找 if (context.Request.Params.Get("_search") == "true") { string sfilters = context.Request.Params.Get("filters"); context.Response.Write(GetJson(SearchUsersDT(sfilters))); return; } NameValueCollection forms = context.Request.Form; string strOperation = forms.Get("oper"); string strResponse = string.Empty; if (strOperation == null) { //排序 if (context.Request.Params.Get("sidx") != null && !string.IsNullOrEmpty(context.Request.Params.Get("sidx").ToString()) && context.Request.Params.Get("sord") != null && !string.IsNullOrEmpty(context.Request.Params.Get("sord").ToString())) { context.Response.Write(GetJson(GetUserDTSorted(context.Request.Params.Get("sidx").ToStr ing(), context.Request.Params.Get("sord").ToString()))); return; } strResponse = GetJson(GetUserDT()); //load data } else if (strOperation == "del") { strResponse = DeleteUser(forms.Get("delId").ToString()) ? "删除成功！" : "删除失败，请确认！"; } else { AddEdit(forms, out strResponse); } context.Response.Write(strResponse); } private void AddEdit(NameValueCollection forms, out string strResponse) { string strOperation = forms.Get("oper"); string strEmpId = string.Empty; User user = new User(); user.UserCode = forms.Get("UserCode").ToString(); user.Password = forms.Get("Password").ToString(); string sTmp = string.Empty; if (strOperation == "add") { if (CheckUserExist(user.UserCode, "")) { sTmp = "用户名重复，请确认！"; } else { sTmp = AddUser(user) ? "用户添加成功！" : "用户添加失败，请确认！"; } } else if (strOperation == "edit") { user.UserId = int.Parse(forms.Get("UserId").ToString()); if (CheckUserExist(user.UserCode, user.UserId.ToString())) { sTmp = "用户名重复，请确认！"; } else { sTmp = UpdateUser(user) ? "用户更新成功！" : "用户更新失败，请确认！ "; } } strResponse = sTmp; } public bool IsReusable { get { return false; } } private DataTable GetUserDT() { string cmdText = "SELECT UserId, UserCode, Password FROM T_User"; SQLHelper sqlhelper = new SQLHelper(); DataTable dt = sqlhelper.Selectinfo(cmdText); return dt; } private string GetJson(DataTable dt) { JavaScriptSerializer serializer = new JavaScriptSerializer(); List<Dictionary<string, object>> rows = new List<Dictionary<string, object>>(); Dictionary<string, object> row = null; foreach (DataRow dr in dt.Rows) { row = new Dictionary<string, object>(); foreach (DataColumn col in dt.Columns) { string s = dr[col].ToString(); //特殊情况 if (col.ColumnName == "IsAdmin") { s = s == "1" ? "是" : "否"; } if (col.ColumnName == "HasWrite") { s = s == "1" ? "是" : "否"; } row.Add(col.ColumnName.Trim(), s); } rows.Add(row); } return serializer.Serialize(rows); } /// <summary> /// 根据jqgrid的查询操作符和字段拼接sql语句 /// </summary> /// <param name="op">jqgrid的查询操作符</param> /// <returns>sql wehere语句</returns> /// <param name="field">查询字段名称</param> private string GetSQLOperater(string op, string field) { string s = string.Empty; switch (op) { case "eq": return field + " = @" + field;//等于 case "ne": return field + " <> @" + field;//不等于 case "bw": return field + " like @" + field + "'%'"; //开始于 case "bn": return field + " not like @" + field + "'%'"; //不开始于 case "ew": return field + " like '%' + @" + field; //结束于 case "en": return field + " not like '%' + @" + field; //不结束于 case "cn": return field + " like + '%' + " + field + "'%'"; //包含 case "nc": return field + " not like + '%' + @" + field + "'%'"; //不包 含 case "nu": return "(" + field + " = '' or is null)"; //空值 case "nn": return "(" + field + " <> '' or is not null)"; //非空值 case "in": return ""; //属于 case "ni": return ""; //不属于 default: return ""; } } private DataTable SearchUsersDT(string filters) { string jsonRes = string.Empty; System.Runtime.Serialization.Json.DataContractJsonSerializer json = new System.Runtime.Serialization.Json.DataContractJsonSerializer(typeof(GridSearch)); using (MemoryStream stream = new MemoryStream(System.Text.Encoding.UTF8.GetBytes(filters))) { GridSearch gridSearch = (GridSearch)json.ReadObject(stream); string groupOp = gridSearch.groupOp; List<GridSearchRules> Rules = gridSearch.rules; string sql = "select UserId, UserCode, Password FROM T_User"; MySqlParameter[] paras = new MySqlParameter[Rules.Count]; bool bFirst = true; for (int i = 0; i < Rules.Count; i++) { GridSearchRules r = Rules[i]; string field = r.field; string op = r.op; string data = r.data; sql = bFirst ? sql + " where " + GetSQLOperater(op, field) : sql + groupOp + GetSQLOperater(op, field); paras[i] = new MySqlParameter("@" + field, data); } SQLHelper sqlhelper = new SQLHelper(); DataTable dt = sqlhelper.Selectinfo(sql); return dt; } } private bool DeleteUser(string userId) { bool flag = true; string[] idlist = userId.Split(','); foreach (var sid in idlist) { string sql = "DELETE FROM T_User WHERE UserId=" + userId; SQLHelper sqlhelper = new SQLHelper(); flag = sqlhelper.AddDelUpdate(sql) > 0; } return flag; } private bool AddUser(User objuser) { bool flag = false; string cmdText = "INSERT INTO T_User (UserCode,Password) VALUES ('" + objuser.UserCode + "','" + objuser.Password + "')"; try { SQLHelper sqlhelper = new SQLHelper(); flag = sqlhelper.AddDelUpdate(cmdText) > 0; } catch (Exception ex) { throw ex; } return flag; } /// <summary> /// 更新用户信息 /// </summary> /// <param name="objuser"></param> /// <returns>更新成功与否</returns> private bool UpdateUser(User objuser) { string sql = "UPDATE T_User SET UserCode = '" + objuser.UserCode + "',Password = '" + objuser.Password + "' WHERE UserId=" + objuser.UserId; SQLHelper sqlhelper = new SQLHelper(); return sqlhelper.AddDelUpdate(sql) > 0; } private DataTable GetUserDTSorted(string field, string oper) { string cmdText = "SELECT UserId, UserCode, UserName, Password, RoleId, CreateBy, CreateTime FROM T_User order by " + field + " " + oper; SQLHelper sqlhelper = new SQLHelper(); DataTable dt = sqlhelper.Selectinfo(cmdText); return dt; } private bool CheckUserExist(string UserCode, string UserId) { string sql = "select * from T_User where UserCode = '" + UserCode + "' and UserId <> " + UserId; SQLHelper sqlhelper = new SQLHelper(); DataTable dt = sqlhelper.Selectinfo(sql); return dt == null || (dt != null && dt.Rows.Count == 1); } }
10.前端的全部代码
<html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <script src="JQGrid/jquery-1.11.1.min.js"></script> <link href="JQGrid/jquery-ui-1.11.1.custom/jquery-ui.css" rel="stylesheet" /> <script src="JQGrid/grid.locale-cn.js"></script> <script src="JQGrid/jquery.jqGrid.js"></script> <link href="JQGrid/ui.jqgrid.css" rel="stylesheet" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title></title> </head> <script type="text/javascript"> jQuery(function ($) { var grid_selector = "#grid-table"; var pager_selector = "#grid-pager"; jQuery(grid_selector).jqGrid({ url: "WebService/UserHandler.ashx", datatype: "json", height: 390, colNames: [' ', 'Id', '用户名', '密码'], colModel: [ { name: 'myac', index: '', 80, fixed: true, sortable: false, resize: false, formatter: 'actions', formatoptions: { keys: true, //editbutton: true, editformbutton: true, // extraparam: { oper: 'edit' }, editOptions: { //编辑操作，这个很重要，实现编辑时传送参数 什么的。 reloadAfterSubmit: true, //editData: { // editkey: function () { // var sel_id = $(grid_selector).jqGrid('getGridParam', 'selrow'); // var value = $(grid_selector).jqGrid('getCell', sel_id, 'UserId'); // return value; // } //}, closeAfterEdit: true, afterSubmit: function (response, postdata) { if (response.responseText != "") { alert(response.responseText); $(this).jqGrid('setGridParam', { datatype: 'json' }).trigger('reloadGrid'); return [true, response.responseText] } }, }, delOptions: { //删除操作，这个很重要，实现删除时传送参数什 么的。 这处网上没有例子的。 reloadAfterSubmit: true, delData: { delId: function () { var sel_id = $(grid_selector).jqGrid('getGridParam', 'selrow'); var value = $(grid_selector).jqGrid('getCell', sel_id, 'UserId'); return value; } }, afterSubmit: function (response, postdata) { if (response.responseText != "") { alert(response.responseText); $(this).jqGrid('setGridParam', { datatype: 'json' }).trigger('reloadGrid'); return [true, response.responseText] } } }, } }, { name: 'UserId', index: 'UserId', 60, sorttype: "int", editable: true, hidden: true }, { name: 'UserCode', index: 'UserCode', 90, editable: true, editrules: { required: true } }, { name: 'Password', index: 'Password', type: "password", 120, editable: true, editrules: { required: true } }, ], viewrecords: true, rowNum: 10, rowList: [10, 20, 30], pager: pager_selector, altRows: true, multiselect: true, multiboxonly: true, loadonce: true, //设置这个才会分页 loadComplete: function (xhr) { }, editurl: "WebService/UserHandler.ashx", caption: "用户管理", //"User Information Management" auto true }); //enable search/filter toolbar //jQuery(grid_selector).jqGrid('filterToolbar',{defaultSearch:true,stringResult:true}) //switch element when editing inline function aceSwitch(cellvalue, options, cell) { setTimeout(function () { $(cell).find('input[type=checkbox]') .wrap('<label class="inline" />') .addClass('ace ace-switch ace-switch-5') .after('<span class="lbl"></span>'); }, 0); } //enable datepicker function pickDate(cellvalue, options, cell) { setTimeout(function () { $(cell).find('input[type=text]') .datepicker({ format: 'yyyy-mm-dd', autoclose: true }); }, 0); } //navButtons jQuery(grid_selector).jqGrid('navGrid', pager_selector, { //navbar options edit: true, editicon: 'ui-icon-pencil blue', edittext: '编辑', add: true, addicon: 'ui-icon-circle-plus', addtext: '新增', del: true, delicon: 'ui-icon-circle-close red', deltext: '删除', search: true, searchicon: 'ui-icon-search orange', searchtext: '查找', refresh: true, refreshicon: 'ui-icon-refresh green', refreshtext: '刷新', view: true, viewicon: 'ui-icon-circle-zoomin grey', viewtext: '查看', }, { //edit record form closeAfterEdit: true, recreateForm: true, beforeShowForm: function (e) { var form = $(e[0]); form.closest('.ui-jqdialog').find('.ui-jqdialogtitlebar'). wrapInner('<div class="widget-header" />') style_edit_form(form); }, afterSubmit: function (response, postdata) { if (response.responseText != "") { $(this).jqGrid('setGridParam', { datatype: 'json' }).trigger('reloadGrid'); alert(response.responseText); return [true, response.responseText] } } }, { //new record form closeAfterAdd: true, recreateForm: true, viewPagerButtons: false, beforeShowForm: function (e) { var form = $(e[0]); form.closest('.ui-jqdialog').find('.ui-jqdialogtitlebar'). wrapInner('<div class="widget-header" />') style_edit_form(form); }, afterSubmit: function (response, postdata) { if (response.responseText != "") { $(this).jqGrid('setGridParam', { datatype: 'json' }).trigger('reloadGrid'); alert(response.responseText); return [true, response.responseText] } } }, { //DELETE delData: { delId: function () { var sel_id = []; sel_id = $(grid_selector).jqGrid('getGridParam', 'selarrrow'); var value = ''; for (var i = 0; i < sel_id.length; i++) { value = value + ',' + $(grid_selector).jqGrid('getCell', sel_id[i], 'UserId'); } if (value.charAt(0) == ',') { value = value.substr(1); } return value; } }, closeOnEscape: true, closeAfterDelete: true, reloadAfterSubmit: true, closeOnEscape: true, drag: true, afterSubmit: function (response, postdata) { if (response.responseText != "") { alert(response.responseText); return [true, response.responseText] } } }, { //search form closeOnEscape: true, closeAfterSearch: true, reloadAfterSubmit: true, recreateForm: true, afterShowSearch: function (e) { var form = $(e[0]); form.closest('.ui-jqdialog').find('.ui-jqdialogtitle'). wrap('<div class="widget-header" />') style_search_form(form); }, afterRedraw: function () { style_search_filters($(this)); }, afterSubmit: function (response, postdata) { if (response.responseText == "") { $(grid_selector).trigger("reloadGrid", [{ current: true }]); return [false, response.responseText] } else { $(this).jqGrid('setGridParam', { datatype: 'json' }).trigger('reloadGrid') return [true, response.responseText] } }, multipleSearch: true }, { //view record form recreateForm: true, beforeShowForm: function (e) { var form = $(e[0]); form.closest('.ui-jqdialog').find('.ui-jqdialogtitle'). wrap('<div class="widget-header" />') } } ) function style_edit_form(form) { //enable datepicker on "sdate" field and switches for "stock" field //form.find('input[name=sdate]').datepicker({ format: 'yyyy-mm-dd', autoclose: true }) // .end().find('input[name=stock]') // .addClass('ace ace-switch ace-switch-5').wrap('<label class="inline" />').after('<span class="lbl"></span>'); //update buttons classes var buttons = form.next().find('.EditButton .fm-button'); buttons.addClass('btn btn-sm').find('[class*="-icon"]').remove();//uiicon, s-icon buttons.eq(0).addClass('btn-primary').prepend('<i class="iconok"></ i>'); buttons.eq(1).prepend('<i class="icon-remove"></i>') buttons = form.next().find('.navButton a'); buttons.find('.ui-icon').remove(); buttons.eq(0).append('<i class="icon-chevron-left"></i>'); buttons.eq(1).append('<i class="icon-chevron-right"></i>'); } function style_delete_form(form) { var buttons = form.next().find('.EditButton .fm-button'); buttons.addClass('btn btn-sm').find('[class*="-icon"]').remove();//uiicon, s-icon buttons.eq(0).addClass('btn-danger').prepend('<i class="icontrash"></ i>'); buttons.eq(1).prepend('<i class="icon-remove"></i>') } function style_search_filters(form) { form.find('.delete-rule').val('X'); form.find('.add-rule').addClass('btn btn-xs btn-primary'); form.find('.add-group').addClass('btn btn-xs btn-success'); form.find('.delete-group').addClass('btn btn-xs btn-danger'); } function style_search_form(form) { var dialog = form.closest('.ui-jqdialog'); var buttons = dialog.find('.EditTable') buttons.find('.EditButton a[id*="_reset"]').addClass('btn btn-sm btninfo'). find('.ui-icon').attr('class', 'icon-retweet'); buttons.find('.EditButton a[id*="_query"]').addClass('btn btn-sm btninverse'). find('.ui-icon').attr('class', 'icon-comment-alt'); buttons.find('.EditButton a[id*="_search"]').addClass('btn btn-sm btnpurple'). find('.ui-icon').attr('class', 'icon-search'); } function beforeDeleteCallback(e) { var form = $(e[0]); if (form.data('styled')) return false; form.closest('.ui-jqdialog').find('.ui-jqdialogtitlebar'). wrapInner('<div class="widget-header" />') style_delete_form(form); form.data('styled', true); } function beforeEditCallback(e) { var form = $(e[0]); form.closest('.ui-jqdialog').find('.ui-jqdialogtitlebar'). wrapInner('<div class="widget-header" />') style_edit_form(form); } //it causes some flicker when reloading or navigating grid //it may be possible to have some custom formatter to do this as the grid is being created to prevent this //or go back to default browser checkbox styles for the grid function styleCheckbox(table) { /** $(table).find('input:checkbox').addClass('ace') .wrap('<label />') .after('<span class="lbl align-top" />') $('.ui-jqgrid-labels th[id*="_cb"]:first-child') .find('input.cbox[type=checkbox]').addClass('ace') .wrap('<label />').after('<span class="lbl align-top" />'); */ } //unlike navButtons icons, action icons in rows seem to be hard-coded //you can change them like this in here if you want function updateActionIcons(table) { /** var replacement = { 'ui-icon-pencil' : 'icon-pencil blue', 'ui-icon-trash' : 'icon-trash red', 'ui-icon-disk' : 'icon-ok green', 'ui-icon-cancel' : 'icon-remove red' }; $(table).find('.ui-pg-div span.ui-icon').each(function(){ var icon = $(this); var $class = $.trim(icon.attr('class').replace('ui-icon', '')); if($class in replacement) icon.attr('class', 'ui-icon '+replacement[$class]); }) */ } //replace icons with FontAwesome icons like above function updatePagerIcons(table) { var replacement = { 'ui-icon-seek-first': 'icon-double-angle-left bigger-140', 'ui-icon-seek-prev': 'icon-angle-left bigger-140', 'ui-icon-seek-next': 'icon-angle-right bigger-140', 'ui-icon-seek-end': 'icon-double-angle-right bigger-140' }; $('.ui-pg-table:not(.navtable) > tbody > tr > .ui-pg-button > .uiicon'). each(function () { var icon = $(this); var $class = $.trim(icon.attr('class').replace('ui-icon', '')); if ($class in replacement) icon.attr('class', 'ui-icon ' + replacement[$class]); }) } function enableTooltips(table) { $('.navtable .ui-pg-button').tooltip({ container: 'body' }); $(table).find('.ui-pg-div').tooltip({ container: 'body' }); } //var selr = jQuery(grid_selector).jqGrid('getGridParam','selrow'); }); </script> <body> <form id="form1" runat="server"> <div> <table id="grid-table"></table> <div id="grid-pager"></div> </div> </form> </body> </html>