如果您的查询结果是 DataTable ，那么您可以使用合并功能合并两个表。

  DataTable table1 = GetTable1Data（...）; 
 DataTable table2 = GetTable2Data（...）; 

 table1.Merge（table2，true）; 
 

或者如果您的查询结果为列表，那么您可以使用与DataTable情况相同的方法，使用 AddRange 函数：

 列表< YourClassType> list1 = GetList1Data（...）; 
列表< YourClassType> list2 = GetList2Data（...）; 

 list1.AddRange（list2，true）; 
 

I have two tables. Most of the data is coming from the first table but there is a second table which has a column which I want to present in my UI

Here is my SQL Query

String sqlQuery = "SELECT u.CallerName, t.* FROM users u INNER JOIN tickets t ON u.id = t.user WHERE u.CallerName = 'tim.smith'";

I am using WinForms

If your query result is DataTable, then you can use Merge function to merge two table.

DataTable table1 = GetTable1Data(...);
DataTable table2 = GetTable2Data(...);

table1.Merge(table2, true);

Or if your query result is List, then you can use same approach as in DataTable case, using AddRange function:

List<YourClassType> list1 = GetList1Data(...);
List<YourClassType> list2 = GetList2Data(...);

list1.AddRange(list2, true);