affecting ref variable in a function c# code example

Example 1: send type as argument c#

object GetColumnValue(string columnName, Type type)
{
    // Here, you can check specific types, as needed:

    if (type == typeof(int)) { // ...

Example 2: send type as argument c#

T GetColumnValue<T>(string columnName)
{
    // If you need the type, you can use typeof(T)...