Question

I have a number of cases where i do a query and get a datatable and convert it to either a:

 Dictionary<string, string>

or

 Dictionary<int, int>

or

 Dictionary<string, [Someobject]>

i could create my own function with a loop but i wanted to see if there was any LINQ way of converting a datatable into a dictionary and just passing 2 lambdas for the key and value (similar like you can do with converting IEnumerable to dictionary

Answer 1

You can use AsEnumerable & ToDictionary:

For example, if you want a dictionary where keys are from col1 and values from col2:

table.AsEnumerable()
     .ToDictionary<int, string>(row => row.Field<int>(col1),
                                row => row.Field<string>(col2));