Question

In c# MVC, I need to get the following “result” (var) in the data table.

var allCompanies = objentity.ExecuteFunction<SearchAvailEmployees_Result>("SearchAvailEmployees", lstParam.ToArray())
                            .ToList();

var result = from c in allCompanies select new[] { 
                            c.LastName, 
                            c.FirstName, 
                            c.Phone, 
                            c.City, 
                            c.PositionApplied, 
                            c.Status, 
                            Convert.ToString(c.CallDate.Value.ToShortDateString()), 
                            Convert.ToString(c.CellOrPager), 
                            c.Gender 
                        };

I tried the following code but it won’t works. It gives the error as

“Cannot implicitly convert type ‘System.Collections.Generic.IEnumerable’ to ‘System.Collections.Generic.IEnumerable’. An explicit conversion exists (are you missing a cast?)”

IEnumerable<DataRow> query = from c in allCompanies select new[] { 
                                            c.LastName, 
                                            c.FirstName, 
                                            c.Phone, 
                                            c.City, 
                                            c.PositionApplied, 
                                            c.Status, 
                                            Convert.ToString(c.CallDate.Value.ToShortDateString()), 
                                            Convert.ToString(c.CellOrPager), 
                                            c.Gender 
                                        };

DataTable boundTable = query.CopyToDataTable<DataRow>();

Any alternate solution to save the linq query result in data table?

Answer 1

This is how I do it:

First I declare a new DataTable and add columns, in this :

DataTable dt = new DataTable();
dt.Columns.Add("FirstName");
dt.Columns.Add("LastName");
DataRow row = null;

Now I execute the desired query:

var query = from c in allCompanies select { c.LastName, c.FirstName};

Now I simply iterate through the query and fill a DataTable:

foreach (var rowObj in query)
{
    row = dt.NewRow();
    dt.Rows.Add(rowObj.FirstName, rowObj.LastName);
}
return dt;

Still in my queries I am using ‘join’-statements.