C# DataTable Column DataType 对应 数据库

 

public DataTable MakeDataTable(){

    

    DataTable myTable;

    DataRow myNewRow; 

    // Create a new DataTable.

    myTable = new DataTable("My Table");

 

    // Create DataColumn objects of data types.

    DataColumn colString = new DataColumn("StringCol");

    colString.DataType = System.Type.GetType("System.String");

    myTable.Columns.Add(colString); 

 

    DataColumn colInt32 = new DataColumn("Int32Col");

    colInt32.DataType = System.Type.GetType("System.Int32");

    myTable.Columns.Add(colInt32);

 

    DataColumn colBoolean = new DataColumn("BooleanCol");

    colBoolean.DataType = System.Type.GetType("System.Boolean");

    myTable.Columns.Add(colBoolean);

 

    DataColumn colTimeSpan = new DataColumn("TimeSpanCol");

    colTimeSpan.DataType = System.Type.GetType("System.TimeSpan");

    myTable.Columns.Add(colTimeSpan);

 

    DataColumn colDateTime = new DataColumn("DateTimeCol");

    colDateTime.DataType = System.Type.GetType("System.DateTime");

    myTable.Columns.Add(colDateTime);

 

    DataColumn colDecimal = new DataColumn("DecimalCol");

    colDecimal.DataType = System.Type.GetType("System.Decimal");

    myTable.Columns.Add(colDecimal);

 

    // Populate one row with values.

    myNewRow = myTable.NewRow();

 

    myNewRow["StringCol"] = "Item Name";

    myNewRow["Int32Col"] = 2147483647;

    myNewRow["BooleanCol"] = true;

    myNewRow["TimeSpanCol"] = new TimeSpan(10,22,10,15,100);

    myNewRow["DateTimeCol"] = System.DateTime.Today;

    myNewRow["DecimalCol"] = 64.0021;

    myTable.Rows.Add(myNewRow);

    return myTable;  

 }