C initialize boolean datacolumns columns.add new datacolumn typeof bool
A C# question!
To initialize a boolean data column in a DataTable
and add a new data column with a type of bool
, you can use the following code:
DataTable table = new DataTable();
// Create a new data column with type bool
DataColumn column = new DataColumn("MyBooleanColumn", typeof(bool));
// Add the column to the table
table.Columns.Add(column);
// Initialize the column with a default value (e.g. false)
column.DefaultValue = false;
This code creates a new DataTable
instance, creates a new DataColumn
with the name "MyBooleanColumn" and type bool
, adds the column to the table, and sets the default value of the column to false
.
Alternatively, you can use the DataTable.Columns.Add
method with a lambda expression to create and add the column in one step:
table.Columns.Add("MyBooleanColumn", typeof(bool), v => (bool?)null);
This code creates a new column with the same name and type as before, but sets the default value to null
(which is equivalent to false
in a boolean context).