c# - Create Columns in a datatable with a single expression -

c# - Create Columns in a datatable with a single expression -

i want define datatable columns, column definition part of datatable definition statement.

eg

//valid syntax datatable dt = new datatable(); dt.columns.add("num",typeof(int)); dt.columns.add("num2",typeof(int));

but rather want along lines of

//invalid syntax datatable dt = new datatable(data.columns[] { {"num",typeof(int)}, {"num2",typeof(int)} };

is possible? if is, right syntax.

you can't initialize datatable collection initializer. can utilize addrange method of datacolumncollection, don't think much improve original approach

datatable dt = new datatable(); dt.columns.addrange(new[] { new datacolumn("num", typeof(int)), new datacolumn("num2", typeof(int)) });

you can create extension method add together columns in fluent way:

public static datatable addcolumn<t>(this datatable dt, string name) { dt.columns.add(name, typeof(t)); homecoming dt; }

usage:

var dt = new datatable() .addcolumn<int>("num") .addcolumn<int>("num2");

c# datatable