//--------------------------------------------------------------------
/// <summary>
/// Invokes a method in the LogicLayer.Reports class and returns
/// the result from that method as datasource for the report.
/// </summary>
/// <param name="methodName"></param>
/// <param name="parameters"></param>
/// <returns></returns>
//--------------------------------------------------------------------
public static object InvokeMethod(string methodName, params Parameter[] parameters)
{
// construct the parameters Hashtable
//
ReportParameters reportParameters = new ReportParameters();
if (parameters != null)
{
foreach (Parameter parameter in parameters)
{
if (parameter.IsSingleValue)
{
if (parameter.Value == DBNull.Value)
reportParameters.AddParameter(parameter.ParameterName, null);
else
reportParameters.AddParameter(parameter.ParameterName, parameter.Value);
}
else
reportParameters.AddParameter(parameter.ParameterName, parameter.List);
}
}
// get the method pointer and invoke the method immediately.
//
Type t = typeof(LogicLayer.Reports);
MethodInfo mi = t.GetMethod(methodName, System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.Public);
if (mi != null)
return mi.Invoke(null, new object[] { reportParameters });
else
throw new Exception("Unable to invoke method '" + methodName + "' to generate the report.");
}