/// <summary>
/// Get new approval date
/// </summary>
/// <param name="sender"></param>
/// <returns></returns>
public DateTime?GetApprovalDate(TestTable sender)
{
using (DemoEntities entity = new DemoEntities())
{
return(entity.TestTables.Where(item => item.Id == sender.Id).FirstOrDefault().OrderApprovalDateTime);
}
}
/// <summary>
/// Get alll statuses
/// </summary>
/// <returns></returns>
public List <string> StatusList()
{
using (DemoEntities entity = new DemoEntities())
{
return(entity.OrderStatus.Select(status => status.Status).ToList());
}
}
/// <summary>
/// Get all records for TestTable
/// </summary>
/// <returns></returns>
public List <TestTable> Read()
{
using (DemoEntities entity = new DemoEntities())
{
return(entity.TestTables.ToList());
}
}
/// <summary>
/// Update a row in the table
/// </summary>
/// <param name="sender"></param>
/// <returns></returns>
/// <remarks>
/// We don't need a task based method but wanted to show
/// how since many desktop developers are not use to this
/// who are just learning.
/// </remarks>
public async Task <TestTable> UpdateItem(TestTable sender)
{
using (DemoEntities entity = new DemoEntities())
{
entity.Entry(sender).State = EntityState.Modified;
await entity.SaveChangesAsync();
var testTableItem = await(entity.TestTables.Where(item => item.Id == sender.Id).FirstOrDefaultAsync <TestTable>());
return(testTableItem);
}
}
/// <summary>
/// Returns a group set for OrderStatus
/// </summary>
/// <returns></returns>
public string GroupedStatus()
{
var sbGrouped = new System.Text.StringBuilder();
using (DemoEntities entity = new DemoEntities())
{
IQueryable <GroupCount> results = entity.TestTables
.GroupBy(item => item.OrderStatus)
.Select(item => new GroupCount
{
Key = item.Key,
Count = item.Count()
}
);
foreach (var item in results)
{
sbGrouped.AppendLine($"{item.Key} - {item.Count}");
}
}
return(sbGrouped.ToString());
}
