print an entire table in C#-CodePudding

I'm trying to print the content of a DataTable, starting with the column headers, followed by the content of the table tupples.

output.Add($"Table : [{dataTable.TableName}]");
string strColumnNames = "";
foreach (DataColumn col in dataTable.Columns)
{
    if (strColumnNames == "")
         strColumnNames = col.ColumnName.PadLeft(col.MaxLength - col.ColumnName.Length);  // (*)
    else strColumnNames = strColumnNames   "|"   
                          col.ColumnName.PadLeft(col.MaxLength - col.ColumnName.Length);  // (*)
}
output.Add($"[{strColumnNames}]");


foreach (DataRow dataRow in dataTable.Rows)
{
    string temp = "";
    for (int i = 0; i < dataRow.ItemArray.Count(); i  )
    {
        if (i == 0)
            temp = dataRow.ItemArray[i].ToString();                          // (**)
        else temp  = "|"   dataRow.ItemArray[i].ToString();                  // (**)
    }
    output.Add($"[{temp}]");
}

The (*) parts in this code are using the MaxLength property of the DataColumns maximum length in order to get a column-like output.

I would like to do the same in the (**) parts, but I don't know how to access the corresponding DataColumn, starting from the dataRow object.

Does anybody have an idea?
Thanks in advance

CodePudding user response：

You already have the dataTable instance available. dataTable.Columns[i] should give you the appropriate DataColumn.

CodePudding user response：

Datatable has already been instantiated here. If you want to print the datacolumn you should use dataTable.Column[i] for the appropriate column.