private string AssignFilterParameterValue(string qualifiedName)
{
char prefix = qualifiedName[0];
string name = qualifiedName.Substring(1);
if ((prefix.Equals('@') || prefix.Equals(':')) && !(_currentCommand.Parameters.Contains(qualifiedName)))
{
object result = null;
if ((_parameters != null) && _parameters.ContainsKey(qualifiedName))
{
result = _parameters[qualifiedName];
}
else
{
IActionHandler handler = _config.CreateActionHandler();
if (handler == null)
{
throw new Exception(String.Format("View \'{0}\' uses a filter with \'{2}\' parameter. Business rules class of the contro" +
"ller must provide a value for this parameter. The filter is defined as {1}.", _viewId, _viewFilter, name));
}
result = handler.GetType().InvokeMember(name, (System.Reflection.BindingFlags.GetProperty | System.Reflection.BindingFlags.GetField), null, handler, new object[0]);
}
IEnumerable <object> enumerable = null;
if (typeof(IEnumerable <object>).IsInstanceOfType(result))
{
enumerable = ((IEnumerable <object>)(result));
}
if (enumerable != null)
{
StringBuilder sb = new StringBuilder();
sb.Append("(");
int parameterIndex = 0;
foreach (object o in enumerable)
{
DbParameter p = _currentCommand.CreateParameter();
_currentCommand.Parameters.Add(p);
p.ParameterName = (qualifiedName + parameterIndex.ToString());
p.Value = o;
if (parameterIndex > 0)
{
sb.Append(",");
}
sb.Append(p.ParameterName);
parameterIndex++;
}
sb.Append(")");
return(sb.ToString());
}
else
{
DbParameter p = _currentCommand.CreateParameter();
_currentCommand.Parameters.Add(p);
p.ParameterName = qualifiedName;
p.Value = result;
}
}
return(qualifiedName);
}