from array to datatable

Question

ok i now it supose to be simple y have a multidimensional array, I try to fill my data table using the following code:

System.Data.DataTable _myDataTable =ne         


        

Answer 1

Works if you have an array where the first row has the DataTable column name(s).

    public static System.Data.DataTable ArrayToDataTable(Array array, bool headerQ=true)
    {
        if (array == null || array.GetLength(1) == 0 || array.GetLength(0) == 0) return null;
        System.Data.DataTable dt = new System.Data.DataTable();
        int dataRowStart = headerQ ? 1 : 0;

        // create columns
        for (int i = 1; i <= array.GetLength(1); i++)
        {
            var column = new DataColumn();
            string value = array.GetValue(1, i) is System.String
                ? array.GetValue(1, i).ToString() : "Column" + i.ToString();

            column.ColumnName = value;
            dt.Columns.Add(column);
        }
        if (array.GetLength(0) == dataRowStart) return dt;  //array has no data

        //Note:  the array is 1-indexed (not 0-indexed)
        for (int i = dataRowStart + 1; i <= array.GetLength(0); i++)
        {
            // create a DataRow using .NewRow()
            DataRow row = dt.NewRow();

            // iterate over all columns to fill the row
            for (int j = 1; j <= array.GetLength(1); j++)
            {
                row[j-1] = array.GetValue(i,j);
            }

            // add the current row to the DataTable
            dt.Rows.Add(row);
        }
        return dt;
    }