/// <summary>
/// Shows how to get a specific number of sorted records, starting from an index, based on Search Parameters. The number of records are also retrieved.
/// </summary>
private void SelectSkipAndTakeDynamicWhere()
{
int startRetrievalFromRecordIndex = 0;
int numberOfRecordsToRetrieve = 10;
string sortBy = "WorkflowId";
//string sortBy = "WorkflowId desc";
// search parameters, everything is nullable, only items being searched for should be filled
// note: fields with String type uses a LIKE search, everything else uses an exact match
// also, every field you're searching for uses the AND operator
// e.g. int? productID = 1; string productName = "ch";
// will translate to: SELECT....WHERE productID = 1 AND productName LIKE '%ch%'
int? workflowId = null;
string workflowName = null;
int? levelOfApprovals = null;
string createdBy = null;
DateTime?createdOn = null;
string updatedby = null;
DateTime?updatedon = null;
// 1. select a specific number of sorted records starting from the index you specify based on Search Parameters
List <WorkflowMaster> objWorkflowMasterCol = WorkflowMaster.SelectSkipAndTakeDynamicWhere(workflowId, workflowName, levelOfApprovals, createdBy, createdOn, updatedby, updatedon, numberOfRecordsToRetrieve, startRetrievalFromRecordIndex, sortBy);
// to use objWorkflowMasterCol please see the SelectAll() method examples
// No need for Examples 1 and 2 because the Collection here is already sorted
// Example 3: directly bind to a GridView - for ASP.NET Web Forms
// Example 4: loop through all the WorkflowMaster(s). The example above will only loop for 10 items.
}
/// <summary>
/// Gets the list of data for use by the jqgrid plug-in
/// </summary>
public IActionResult OnGetGridDataWithFilters(string sidx, string sord, int _page, int rows, string filters)
{
int? workflowId = null;
string workflowName = String.Empty;
int? levelOfApprovals = null;
string createdBy = String.Empty;
DateTime?createdOn = null;
string updatedby = String.Empty;
DateTime?updatedon = null;
if (!String.IsNullOrEmpty(filters))
{
// deserialize json and get values being searched
var jsonResult = JsonConvert.DeserializeObject <Dictionary <string, dynamic> >(filters);
foreach (var rule in jsonResult["rules"])
{
if (rule["field"].Value.ToLower() == "workflowid")
{
workflowId = Convert.ToInt32(rule["data"].Value);
}
if (rule["field"].Value.ToLower() == "workflowname")
{
workflowName = rule["data"].Value;
}
if (rule["field"].Value.ToLower() == "levelofapprovals")
{
levelOfApprovals = Convert.ToInt32(rule["data"].Value);
}
if (rule["field"].Value.ToLower() == "createdby")
{
createdBy = rule["data"].Value;
}
if (rule["field"].Value.ToLower() == "createdon")
{
createdOn = Convert.ToDateTime(rule["data"].Value);
}
if (rule["field"].Value.ToLower() == "updatedby")
{
updatedby = rule["data"].Value;
}
if (rule["field"].Value.ToLower() == "updatedon")
{
updatedon = Convert.ToDateTime(rule["data"].Value);
}
}
// sometimes jqgrid assigns a -1 to numeric fields when no value is assigned
// instead of assigning a null, we'll correct this here
if (workflowId == -1)
{
workflowId = null;
}
if (levelOfApprovals == -1)
{
levelOfApprovals = null;
}
}
int totalRecords = WorkflowMaster.GetRecordCountDynamicWhere(workflowId, workflowName, levelOfApprovals, createdBy, createdOn, updatedby, updatedon);
int startRowIndex = ((_page * rows) - rows);
List <WorkflowMaster> objWorkflowMasterCol = WorkflowMaster.SelectSkipAndTakeDynamicWhere(workflowId, workflowName, levelOfApprovals, createdBy, createdOn, updatedby, updatedon, rows, startRowIndex, sidx + " " + sord);
int totalPages = (int)Math.Ceiling((float)totalRecords / (float)rows);
if (objWorkflowMasterCol is null)
{
return(new JsonResult("{ total = 0, page = 0, records = 0, rows = null }"));
}
var jsonData = new
{
total = totalPages,
_page,
records = totalRecords,
rows = (
from objWorkflowMaster in objWorkflowMasterCol
select new
{
id = objWorkflowMaster.WorkflowId,
cell = new string[] {
objWorkflowMaster.WorkflowId.ToString(),
objWorkflowMaster.WorkflowName,
objWorkflowMaster.LevelOfApprovals.HasValue ? objWorkflowMaster.LevelOfApprovals.Value.ToString() : "",
objWorkflowMaster.CreatedBy,
objWorkflowMaster.CreatedOn.ToString("d"),
objWorkflowMaster.Updatedby,
objWorkflowMaster.Updatedon.ToString("d")
}
}).ToArray()
};
return(new JsonResult(jsonData));
}