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POjqGrid url not getting called with server side paging & sorting & postData: Form.searialize() in MVC 4
 

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  1. POjqGrid url not getting called with server side paging & sorting & postData: Form.searialize() in MVC 4
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    <p>I am implementing server side paging &amp; sorting for jqGrid in MVC 4. I am passing view model object as postData to jqGrid url action method. have a look at grid definition.</p> <pre><code>var isGridDefined = false; $(document).ready(function () { function DefineGrid(Year, Month) { var mygrid = $("#RptUpload"); mygrid.jqGrid({ loadonce: false, async: false, datatype: 'json', postData: { bReload: true, Year: Year, Month: Month }, url: '@Url.Action("DMEUploadDetailsList", "Reports")', jsonReader: { repeatitems: false, root: "DataRows" }, colNames: ['@VirtuOxAdmin.DMEUploadDetails_Grid_RptUpload_OrderID', '@VirtuOxAdmin.DMEUploadDetails_Grid_RptUpload_CompanyName', '@VirtuOxAdmin.DMEUploadDetails_Grid_RptUpload_PatientID', '@VirtuOxAdmin.DMEUploadDetails_Grid_RptUpload_PatientName', "@VirtuOxAdmin.DMEUploadDetails_Grid_RptUpload_DOB", '@VirtuOxAdmin.DMEUploadDetails_Grid_RptUpload_Insurance', "@VirtuOxAdmin.DMEUploadDetails_Grid_RptUpload_UploadDate" ], colModel: [ { name: 'ReadingID', index: 'ReadingID', width: 55, fixed: true, sorttype: 'integer', align: 'center' }, { name: 'CompanyName', index: 'CompanyName', align: 'center', width: 200, cellattr: function (rowId, tv, rawObject, cm, rdata) { return 'style="white-space: normal!important;' }, }, { name: 'PatientID', index: 'PatientID', width: 55, fixed: true, sorttype: 'integer', align: 'center' }, { name: 'PatientName', index: 'PatientName', align: 'center', width: 200, cellattr: function (rowId, tv, rawObject, cm, rdata) { return 'style="white-space: normal!important;' }, }, { name: 'DOB', index: 'DOB', width: 80, fixed: true, sorttype: 'date', formatter: 'date', formatoptions: { srcformat: 'm/d/Y', newformat: 'm/d/Y' }, align: 'center' }, { name: 'InsuranceType', index: 'InsuranceType', align: 'center', width: 150, cellattr: function (rowId, tv, rawObject, cm, rdata) { return 'style="white-space: normal!important;' }, }, { name: 'UploadDate', index: 'UploadDate', width: 80, fixed: true, sorttype: 'date', formatter: 'date', formatoptions: { srcformat: 'm/d/Y', newformat: 'm/d/Y' }, align: 'center' } ], rowNum: 20, rowList: [20, 50, 100, 200], pager: '#UploadPager', caption: '@VirtuOxAdmin.DMEUploadDetails_Grid_RptUpload_Title', viewrecords: true, height: 'auto', width: 770, hidegrid: false, shrinkToFit: true, scrollOffset: 0, headertitles: true, loadError: function (xhr, status, error) { alert(status + " " + error); }, //onPaging: function (pgButton) { // $("#RptUpload").jqGrid("setGridParam", { postData: { bReload: false } }); //}, loadCompete: function () { $("#RptUpload").jqGrid("setGridParam", { datatype: 'json', postData: { bReload: false } }); } }); mygrid.navGrid('#UploadPager', { edit: false, add: false, del: false, search: false, refresh: false }); isGridDefined = true; } $("#rptRefresh").click(function (e) { e.preventDefault(); var Form = $("form[id='FrmDMEUploadDetails']"); Form.validate(); if (Form.valid()) { RemoveValidatioMessages(); $("#gridContainer").show(); var Year = $("#Year").val(); var Month = $("#Month").val(); if (!isGridDefined) DefineGrid(Year, Month); else $("#RptUpload").jqGrid("setGridParam", { datatype: "json", page: 1, postData: { bReload: true, Year: Year, Month: Month } }).trigger("reloadGrid"); } else { $("#RptUpload").clearGridData(); $("#gridContainer").hide(); } $(".chzn-select-deselect").trigger("liszt:updated"); return false; }); }); </code></pre> <p>&amp; my action method is as follows</p> <pre><code>public ActionResult DMEUploadDetailsList(bool bReload, string Year, string Month, string nd, int rows, int page, string sidx, string sord, string filters) { DataSet SearchResult = null; List&lt;ReportData&gt; ResultRows = new List&lt;ReportData&gt;(); JQGridResult Result = new JQGridResult(); if (bReload) { SearchResult = DB.ExecuteDataset("ConnectionString", "pc_GetUploadDetail", new SqlParameter("@Year", Year), new SqlParameter("@Month", Month)); Common.SetSession(SearchResult, null, "DMEUploadByMonth"); } else SearchResult = SessionManager.GetSession().GetAttribute("DMEUploadByMonth") as DataSet; if (SearchResult != null) { DataTable dtSearchResult = SearchResult.Tables[0]; # region Handle server side Filtering, sorting and paging int totalRecords = dtSearchResult.Rows.Count; //before paging int totalPages = (int)Math.Ceiling((decimal)totalRecords / (decimal)rows); //--- number of pages int startIndex = ((page &gt; 0 ? page - 1 : 0) * rows); if (sidx != "") { dtSearchResult.DefaultView.Sort = sidx + " " + sord; dtSearchResult = dtSearchResult.DefaultView.ToTable(); } # endregion for (int i = startIndex; i &lt; dtSearchResult.Rows.Count; i++) { ResultRows.Add(new ReportData() { ReadingID = Convert.ToInt32(dtSearchResult.Rows[i][0]), CompanyName = Convert.ToString(dtSearchResult.Rows[i][1]), PatientID = Convert.ToInt32(dtSearchResult.Rows[i][2]), PatientName = Convert.ToString(dtSearchResult.Rows[i][3]), DOB = (dtSearchResult.Rows[i][4] != DBNull.Value ? Convert.ToDateTime(dtSearchResult.Rows[i][4]) : (DateTime?)null), InsuranceType = Convert.ToString(dtSearchResult.Rows[i][5]), UploadDate = (dtSearchResult.Rows[i][6] != DBNull.Value ? Convert.ToDateTime(dtSearchResult.Rows[i][6]) : (DateTime?)null) }); if (ResultRows.Count == rows) break; } Result.DataRows = ResultRows; Result.page = page; Result.total = totalPages; Result.records = totalRecords; } return Json(Result, JsonRequestBehavior.AllowGet); } </code></pre> <p>The problem with current implementation is that my action method <strong>DMEUploadDetailsList</strong> is not getting called though view model object is getting passed to request successfuly. &amp; This implementation were working fine when used client side paging &amp; sorting. Please suggest me If I am missing anything or correct my mistakes to get server side paging &amp; sorting working. </p> <p>This grid is defined or reloaded on refresh button. Now what I want is to identify whether action method is called on refresh button click or paging &amp; sorting operation?</p> <p><strong>[ Now I would like to describe the last two sentence of problem statement. It specifies that when my page is loaded grid is not defined. As soon as I select filter &amp; clicks refresh button my grid is defined for first time &amp; reloaded for subsequent clicks of refresh. If you go through the action method code you will see that i am trying to use bReload bit variable for, when it is true [in case of refresh button click] I would like to query data from SQL otherwise from dataset stored in session [in case of paging or sorting request]. Now If you looked at the postData parameter in definition or in reload call I am passing breload as true. Where as I am not aware of how can I override this parameter to false when user request for sorting &amp; paging. Or else if there is any another simple way with which in action method I can get whether this request is of load data or paging &amp; sorting.]</strong></p>
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    1. CO@Oleg Hi Thanks for your reply. I changed my jqGrid definition & action method definition to have separate Year & Month parameter. & it start working; my action method is getting called. I would like to know why it was not working when I was passing these values as class object.
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