protected override Expression VisitMethodCall(MethodCallExpression m)
{
if (m.Method.DeclaringType == typeof(Queryable) && m.Method.Name == "Where")
{
this.Visit(m.Arguments[0]);
LambdaExpression lambda = (LambdaExpression)StripQuotes(m.Arguments[1]);
ConditionExpressionVisitor whereVisitor = new ConditionExpressionVisitor();
whereVisitor.Translate(lambda.Body, tr);
return(m);
}
else if (m.Method.DeclaringType == typeof(Queryable) && m.Method.Name == "Select")
{
this.Visit(m.Arguments[0]);
LambdaExpression lambda = (LambdaExpression)StripQuotes(m.Arguments[1]);
SelectExpressionVisitor selectVisitor = new SelectExpressionVisitor();
selectVisitor.Translate(lambda, tr);
return(m);
}
else if (m.Method.DeclaringType == typeof(Queryable) && m.Method.Name == "Count")
{
tr.HasStatictisc = true;
tr.StatictiscVerb = "Count";
this.Visit(m.Arguments[0]);
if (m.Arguments.Count == 2)
{
throw new NotSupportedException("Count clause not support parameter,use where clause instead.");
}
return(m);
}
else if (m.Method.DeclaringType == typeof(Queryable) && (m.Method.Name == "OrderByDescending" || m.Method.Name == "OrderBy"))
{
Visit(m.Arguments[0]);
LambdaExpression lambda = (LambdaExpression)StripQuotes(m.Arguments[1]);
OrderByExpressionVisitor orderVisitor = new OrderByExpressionVisitor(m.Method.Name);
orderVisitor.Translate(lambda.Body, tr);
return(m);
}
else if (m.Method.Name == "Sum" ||
m.Method.Name == "Average" ||
m.Method.Name == "Max" ||
m.Method.Name == "Min" ||
m.Method.Name == "Count")
{
throw new NotSupportedException("Statictisc is not support yet.");
}
else if (m.Method.Name == "GroupBy")
{
throw new NotSupportedException("GroupBy is not support yet.");
}
throw new NotSupportedException(string.Format("The method '{0}' is not supported", m.Method.Name));
}
protected override Expression VisitMethodCall(MethodCallExpression m)
{
if (m.Method.DeclaringType == typeof(Queryable) && m.Method.Name == "Where") {
this.Visit(m.Arguments[0]);
LambdaExpression lambda = (LambdaExpression)StripQuotes(m.Arguments[1]);
ConditionExpressionVisitor whereVisitor = new ConditionExpressionVisitor();
whereVisitor.Translate(lambda.Body, tr);
return m;
}
else if (m.Method.DeclaringType == typeof(Queryable) && m.Method.Name == "Select")
{
this.Visit(m.Arguments[0]);
LambdaExpression lambda = (LambdaExpression)StripQuotes(m.Arguments[1]);
SelectExpressionVisitor selectVisitor = new SelectExpressionVisitor();
selectVisitor.Translate(lambda,tr);
return m;
}
else if (m.Method.DeclaringType == typeof(Queryable) && m.Method.Name == "Count")
{
tr.HasStatictisc = true;
tr.StatictiscVerb = "Count";
this.Visit(m.Arguments[0]);
if (m.Arguments.Count == 2)
{
throw new NotSupportedException("Count clause not support parameter,use where clause instead.");
}
return m;
}
else if (m.Method.DeclaringType == typeof(Queryable) && (m.Method.Name == "OrderByDescending" || m.Method.Name == "OrderBy"))
{
Visit(m.Arguments[0]);
LambdaExpression lambda = (LambdaExpression)StripQuotes(m.Arguments[1]);
OrderByExpressionVisitor orderVisitor = new OrderByExpressionVisitor(m.Method.Name);
orderVisitor.Translate(lambda.Body,tr);
return m;
}
else if (m.Method.Name == "Sum"
|| m.Method.Name == "Average"
|| m.Method.Name == "Max"
|| m.Method.Name == "Min"
|| m.Method.Name == "Count")
{
throw new NotSupportedException("Statictisc is not support yet.");
}
else if (m.Method.Name == "GroupBy")
{
throw new NotSupportedException("GroupBy is not support yet.");
}
throw new NotSupportedException(string.Format("The method '{0}' is not supported", m.Method.Name));
}