manually create and fill DataTable

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Import namespace

using System.Data;

Code

DataTable table = new DataTable();

DataColumn column;

column = table.Columns.Add();
column.ColumnName = "id";
column.DataType = typeof(Guid);

column = table.Columns.Add();
column.ColumnName = "name";
column.DataType = typeof(string);

column = table.Columns.Add();
column.ColumnName = "age";
column.DataType = typeof(int);

DataRow row;

row = table.NewRow();
row["id"] = Guid.NewGuid();
row["name"] = "Richard";
row["age"] = 45;
table.Rows.Add(row);

row = table.NewRow();
row["id"] = Guid.NewGuid();
row["name"] = "Denisa";
row["age"] = 38;
table.Rows.Add(row);

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