ASP. NET Ajax Beta 1 is released, and there are still many problems including Ajax Control Toolkit.

Reference:
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Microsoft released the first beta of ASP. NET Ajax 1.0. You can Http://ajax.asp.net Website Download this version . On this website, there are three download options:

1)Download the "core" of ASP. NET Ajax 1.0. This download includes all the features fully supported by Microsoft product support, that is, with a standard 10-year Microsoft support license (24 hours a day, 7 days a week, 365 days a year ). This download includes the core Ajax type system, network protocol layer (networking stack), component model, extender (Extender) base class, and ASP.. Net integrated server functions (including popular scriptmanager, updatepanel, and timer controls ).

2)ASP. NET Ajax "value-added" CTP download. This download includes additional advanced features included in previous Atlas CTP versions, but not fully supported "core" 1.0. While further improving these features and integrating more feedback, these features will continue to be obtainedCommunityYes. Over time, as we further confirm the features in this value-added package, we will gradually move the features to the "core" download version.

3)ASP. NET Ajax Control Toolkit. This project contains 28 cool free Ajax controls based on the "core" download version of ASP. NET Ajax 1.0. This project is a collaborative shared source code developed by Microsoft and non-Microsoft developers. You can goCodeplexJoin the development community or downloadCode.
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I tried it for a while, and the functions were improved a lot. There were also some minor problems:
1. If no refresh is used in the User-Defined control, the updatepanel will not work, and the whole page will be refreshed accordingly.
2. Ajax Control Toolkit some controls do not support Chinese characters well. For example, the newly added "validatorcallout" function cannot customize CSS styles, the displayed Chinese characters will be distorted (the default value is 10 characters). You need to modify the validatorcalloutbehavior in the original file. 169th lines of Js.
3. Some controls are not integrated into the beta version and must be added for download.
4. Most of the Code in the previous project needs to be modified again...
5. After updatepanel is used, the text box input focus cannot be defined.

I believe these problems will continue today.
But in general, the release of ASP. NET Ajax Beta 1 by Microsoft is an exciting thing. I hope the official version will be published soon.
Sys undefined solution --------------
Add the following content in Web. config:
<Httphandlers>
<Add verb = "get" Path = "scriptresource. axd" type = "Microsoft. Web. Handlers. scriptresourcehandler" Validate = "false"/>
</Httphandlers>