private void HandleParamStringFunctions(MethodCallExpression node)
{
var name = node.Object.As <MemberExpression>().Member.Name;
var arg = node.Arguments[0].GetValue();
string value = null;
switch (node.Method.Name)
{
case "StartsWith":
value = "{0} like @{1}".ToFormat(_provider.EscapeName(name), Parameters.CurrentIndex);
Parameters.RegisterParameter(arg + "%");
break;
case "EndsWith":
value = "{0} like @{1}".ToFormat(_provider.EscapeName(name), Parameters.CurrentIndex);
Parameters.RegisterParameter("%" + arg);
break;
case "Contains":
value = "{0} like @{1}".ToFormat(_provider.EscapeName(name), Parameters.CurrentIndex);
Parameters.RegisterParameter("%" + arg + "%");
break;
case "ToUpper":
case "ToUpperInvariant":
value = _provider.ToUpper(name);
break;
case "ToLower":
case "ToLowerInvariant":
value = _provider.ToLower(name);
break;
case "Substring":
value = _provider.Substring(name, (int)arg, (int)node.Arguments[1].GetValue());
break;
}
_sb.Append(value);
}
