Dynamite Dynamic Sorting Library

Source code checked in, #79962

Project Collection Service Accounts — Mon, 01 Oct 2012 21:14:48 GMT

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Source code checked in, #79961

Project Collection Service Accounts — Mon, 01 Oct 2012 21:08:39 GMT

Checked in by server upgrade

Updated Wiki: Documentation

henjon — Thu, 12 Jul 2012 19:37:56 GMT

See the following Code Project article for a description on how to use Dynamite to sort:

Dynamite: High Performace Dynamic Sorting Using Expressions

Updated Wiki: Home

henjon — Thu, 12 Jul 2012 09:29:30 GMT

News
You can now easily download the Dynamite package via NuGet by following this link:
https://nuget.org/packages/Dynamite

Project Description
Easy-to-use and high performance dynamic sorting library supporting SQL-like syntax and complex/nested expressions, that uses System.Linq.Expression to dynamically build fast comparers.

With this library you can sort a List<T> using a textual sort expression:

List<Person> person;

person.Sort("Name.Length, BirthDate DESCENDING");

You can also use LINQ style OrderBy like this:

// Print names ordered by year of birth (and then by Name).
foreach( Person p in persons.OrderBy("BirthDate.Year, Name")
{
   Console.WriteLine(p.Name);
}

Dynamite uses the System.Linq.Expression namespace to build and compile fast running comparer. Please read more about this library in the article below.

References

Dynamite: High Performace Dynamic Sorting Using Expressions Article describing usage and design of Dynamite library.

Updated Wiki: Home

henjon — Thu, 12 Jul 2012 09:28:32 GMT

List<Person> person;

person.Sort("Name.Length, BirthDate DESCENDING");

You can also use LINQ style OrderBy like this:

// Print names ordered by year of birth (and then by Name).
foreach( Person p in persons.OrderBy("BirthDate.Year, Name")
{
   Console.WriteLine(p.Name);
}

Dynamite uses the System.Linq.Expression namespace to build and compile fast running comparer. Please read more about this library in the article below.

References

Dynamite: High Performace Dynamic Sorting Using Expressions Article describing usage and design of Dynamite library.

New Post: Error on columns with underscore

henjon — Sat, 20 Aug 2011 19:57:53 GMT

Thanks for reporting this bug.

I have now checked in a fix for this in changeset 69180. It will be included in next release.

Closed Issue: Error on columns with underscore [9351]

henjon — Sat, 20 Aug 2011 19:54:04 GMT

As reported by Colibri in Discussion forum column identifiers containing underscores are not correctly parsed, e.g. "with_underscores" is passed as "with".
Comments:

Fixed in changeset 69180.

Source code checked in, #69180

henjon — Sat, 20 Aug 2011 19:51:21 GMT

Fix of issue #9351 Error on columns with underscore

Created Issue: Error on columns with underscore [9351]

henjon — Sat, 20 Aug 2011 19:50:04 GMT

As reported by Colibri in Discussion forum column identifiers containing underscores are not correctly parsed, e.g. "with_underscores" is passed as "with".

New Post: Error on columns with underscore

Kollibri — Fri, 19 Aug 2011 13:59:06 GMT

If any of columns in the sort list have an underscore in them, the sorter does not work. It's as if it views underscores as spaces, and looks for a column with the name prior to the underscore.
For example:
Column Name: With_Underscore

The sorter looks for a column called "With" and throws an error.

Patch Uploaded: #10019

niaher — Tue, 26 Jul 2011 05:42:33 GMT

niaher has uploaded a patch.

Description:
The field names with underscore in it are tokenized incorrectly. For example "Person_Id" will be tokenized as just "Person". The fix is to update Dynamite.Parsing.SimpleTokenizer.ReadIdentity() method, in particular the while loop should be changed to:

while(position < expression.Length && (Char.IsLetterOrDigit(expression, position) || expression[position] == '_' )) { position++; }

Regards,
Nik.

Created Issue: customizable identifiers [7008]

henjon — Thu, 26 Aug 2010 18:23:43 GMT

Created Feature: Dynamic filtering [6699]

henjon — Fri, 23 Jul 2010 17:52:16 GMT

Complete and check in code for dynamic filtering.

Source code checked in, #52406

_TFSSERVICE — Tue, 20 Jul 2010 20:45:25 GMT

Checked in by server upgrade

Reviewed: Dynamite version 1.0.1 (Nov 19, 2009)

tomhundley — Thu, 19 Nov 2009 23:33:21 GMT

Rated 5 Stars (out of 5) - Kudos. Very nice code!!! This was very helpful to me. Thanks for the work and for sharing it.

New Post: Error when using after published to server

henjon — Sun, 25 Oct 2009 12:12:08 GMT

Hi,

Since you just get the error on the staging server you probably have a different version of the .NET framework there. I have only tested it on 3.5 SP1, it is likely that you miss Service Pack 1 on your server.

If you can't upgrade to .NET 3.5 SP1 on the server, you could try the following change in ComparerBuilder.cs line 831:

// Try typed CompareTo (defined in IComparable<T> generic interface type) first.
MethodInfo compareToMethod = null;
Type genericIComparableType = typeof(IComparable<>).MakeGenericType(propType);
if (genericIComparableType.IsAssignableFrom(propType))
{
     compareToMethod = genericIComparableType.GetMethod("CompareTo");
     compareToMethod = GetMethodImplementation(propType, compareToMethod);
}
else

Good luck.

New Post: Error when using after published to server

atpgod — Wed, 21 Oct 2009 23:32:18 GMT

Temporary fix was to create a new property called "SortText" where it returns a zero-filled string, instead of an INT. And no more error.

New Post: Error when using after published to server

atpgod — Wed, 21 Oct 2009 23:05:37 GMT

I'm getting the following error when I try to use this on our staging server. This error does NOT get thrown locally on my machine. I've tried changing the datatype from Short, Integer, Long.

The line of code that is erroring is:

oTempProducts.Sort("Audience, Category, Sort") 'String, String, Integer

Method 'Int32 CompareTo(Int32)' is not defined for type 'System.Int32

--------------------------------

Dynamite.Parsing.ParserException: Method 'Int32 CompareTo(Int32)' is not defined for type 'System.Int32'
     at Dynamite.ComparerBuilder`1.GetFieldComparisons(String sortExpression) in C:\Users\apatel\Desktop\Dynamite_1_0_1\Dynamite\ComparerBuilder.cs:line 1087
     at Dynamite.ComparerBuilder`1.CreateTypeComparison(String sortExpression) in C:\Users\apatel\Desktop\Dynamite_1_0_1\Dynamite\ComparerBuilder.cs:line 509
     at Dynamite.Extensions.ComparerExtensions.Sort[T](List`1 list, String sortExpression) in C:\Users\apatel\Desktop\Dynamite_1_0_1\Dynamite\ComparerExtensions.cs:line 44
     at Objects.MarketingGuide.UpdateProductsSortFromValues() in C:\Users\apatel\Documents\My Projects\JacksonNational\Superfulfillment\Website\App_Code\Objects\MarketingGuide.vb:line 882'

Updated Release: Dynamite version 1.0.1 (Oct 03, 2008)

henjon — Fri, 03 Oct 2008 08:27:35 GMT

Improved speed of OrderBy(IEnumerable<T>) by using ComparerBuilder<T>.GetOrderByFunction(), especially for nested and "slow access" properties such as DateTime.DayOfWeek.

Released: Dynamite version 1.0.1 (Oct 03, 2008)

Fri, 03 Oct 2008 08:27:35 GMT

Improved speed of OrderBy(IEnumerable<T>) by using ComparerBuilder<T>.GetOrderByFunction(), especially for nested and "slow access" properties such as DateTime.DayOfWeek.