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vb.net data : how to handle the data when internet broken?
Hi there
I want to delvelop a larger project and it should include some function as follow: 1. Using SQL for the Center database 2. 1000 stores can retrive information from web server (web service) 3. When the internet connection broken, the store can still working with their local data and save it on local manchine, until the internet connection works, it can auto update the SQL database. What I design is: 1. stores can retrive all information from web server (Web service) and save it on local machine using XML 2. when stores run destop application, the application check the difference between local XML data (load into DataSet) and SQL server data (load into DataSet) and update the SQL server and local data with the difference. 3.When internet broken, the application will use local data and save it on local machine. 4. When internet connection works, the application will check the difference between local XML data and SQL server data and update both. What I want to know is that my design is correct ? if it is not correct, how can I design it? The important things is when internet connection broken, the stores also can works without SQL server Data. Thanks Tony
Hi,
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dndotnet/html/northwindunplugged.asp Ken ----------------- [quoted text, click to view] "sandra" <sandra@softgroomer.com> wrote in message news:uwsS$Kl9DHA.2856@TK2MSFTNGP10.phx.gbl... > Hi there > > I want to delvelop a larger project and it should include some function as > follow: > 1. Using SQL for the Center database > 2. 1000 stores can retrive information from web server (web service) > 3. When the internet connection broken, the store can still working with > their local data and save it on local manchine, until the internet > connection works, it can auto update the SQL database. > > What I design is: > 1. stores can retrive all information from web server (Web service) and save > it on local machine using XML > 2. when stores run destop application, the application check the difference > between local XML data (load into DataSet) and SQL server data (load into > DataSet) and update the SQL server and local data with the difference. > 3.When internet broken, the application will use local data and save it on > local machine. > 4. When internet connection works, the application will check the difference > between local XML data and SQL server data and update both. > > What I want to know is that my design is correct ? > if it is not correct, how can I design it? > > The important things is when internet connection broken, the stores also can > works without SQL server Data. > > Thanks > > Tony > >
Hi Ken
Thank you for your informaiton. I will have a look about this. Tony [quoted text, click to view] "Ken Tucker [MVP]" <vb2ae@bellsouth.net> wrote in message news:OXJWKUu9DHA.2404@TK2MSFTNGP11.phx.gbl... > Hi, > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dndotnet/html/northwindunplugged.asp > > Ken > ----------------- > "sandra" <sandra@softgroomer.com> wrote in message > news:uwsS$Kl9DHA.2856@TK2MSFTNGP10.phx.gbl... > > Hi there > > > > I want to delvelop a larger project and it should include some function as > > follow: > > 1. Using SQL for the Center database > > 2. 1000 stores can retrive information from web server (web service) > > 3. When the internet connection broken, the store can still working with > > their local data and save it on local manchine, until the internet > > connection works, it can auto update the SQL database. > > > > What I design is: > > 1. stores can retrive all information from web server (Web service) and > save > > it on local machine using XML > > 2. when stores run destop application, the application check the > difference > > between local XML data (load into DataSet) and SQL server data (load into > > DataSet) and update the SQL server and local data with the difference. > > 3.When internet broken, the application will use local data and save it on > > local machine. > > 4. When internet connection works, the application will check the > difference > > between local XML data and SQL server data and update both. > > > > What I want to know is that my design is correct ? > > if it is not correct, how can I design it? > > > > The important things is when internet connection broken, the stores also > can > > works without SQL server Data. > > > > Thanks > > > > Tony > > > > > >
www.ianywhere.com
-P- [quoted text, click to view] "sandra" <sandra@softgroomer.com> wrote in message news:uwsS$Kl9DHA.2856@TK2MSFTNGP10.phx.gbl... > Hi there > > I want to delvelop a larger project and it should include some function as > follow: > 1. Using SQL for the Center database > 2. 1000 stores can retrive information from web server (web service) > 3. When the internet connection broken, the store can still working with > their local data and save it on local manchine, until the internet > connection works, it can auto update the SQL database. > > What I design is: > 1. stores can retrive all information from web server (Web service) and save > it on local machine using XML > 2. when stores run destop application, the application check the difference > between local XML data (load into DataSet) and SQL server data (load into > DataSet) and update the SQL server and local data with the difference. > 3.When internet broken, the application will use local data and save it on > local machine. > 4. When internet connection works, the application will check the difference > between local XML data and SQL server data and update both. > > What I want to know is that my design is correct ? > if it is not correct, how can I design it? > > The important things is when internet connection broken, the stores also can > works without SQL server Data. > > Thanks > > Tony > >
Hi Ken
if it is a lot of date need to transfer, remoting may be better than web service, are you agree? Tony [quoted text, click to view] "Ken Tucker [MVP]" <vb2ae@bellsouth.net> wrote in message news:OXJWKUu9DHA.2404@TK2MSFTNGP11.phx.gbl... > Hi, > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dndotnet/html/northwindunplugged.asp > > Ken > ----------------- > "sandra" <sandra@softgroomer.com> wrote in message > news:uwsS$Kl9DHA.2856@TK2MSFTNGP10.phx.gbl... > > Hi there > > > > I want to delvelop a larger project and it should include some function as > > follow: > > 1. Using SQL for the Center database > > 2. 1000 stores can retrive information from web server (web service) > > 3. When the internet connection broken, the store can still working with > > their local data and save it on local manchine, until the internet > > connection works, it can auto update the SQL database. > > > > What I design is: > > 1. stores can retrive all information from web server (Web service) and > save > > it on local machine using XML > > 2. when stores run destop application, the application check the > difference > > between local XML data (load into DataSet) and SQL server data (load into > > DataSet) and update the SQL server and local data with the difference. > > 3.When internet broken, the application will use local data and save it on > > local machine. > > 4. When internet connection works, the application will check the > difference > > between local XML data and SQL server data and update both. > > > > What I want to know is that my design is correct ? > > if it is not correct, how can I design it? > > > > The important things is when internet connection broken, the stores also > can > > works without SQL server Data. > > > > Thanks > > > > Tony > > > > > >
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