I've got a situation where I have live data coming in from multiple sources.
I'm able to get it into two tables in RAM.
I have one table called "Providers" and it has a ProviderID and some other
fields.
I have another table called "Services"a nd it has a ProviderID in it as well
as a ServiceID and some other fields.
I just added data to these tables by using DataRow(0) = <first data item>,
DataRow(1) = <second data item>, etc. ThenI added the row to the table by
using Provider.Rows.A dd(datarow)
Did something similar for the 2nd table. Now I want to do a nested
repeater, and I've figured out how to do that, but I'm apparently missing
something on setting up the relations.
How do I set up a relationship between these two tables AT RUNTIME?
I haven't introduced a "Dataset" yet at all. Not sure where to do this, and
I'm not sure what to do. Can someone take pity on me and give me the syntax
for doing a relation when both tables are in memory already?
Thanks in advance! 4 1506
Have a look into the DataRelation class. That is exactly what you are after.
Eliyahu
"Scott at Cedar Creek" <Sc************ ***@discussions .microsoft.com> wrote
in message news:48******** *************** ***********@mic rosoft.com... I've got a situation where I have live data coming in from multiple sources. I'm able to get it into two tables in RAM.
I have one table called "Providers" and it has a ProviderID and some other fields.
I have another table called "Services"a nd it has a ProviderID in it as well as a ServiceID and some other fields.
I just added data to these tables by using DataRow(0) = <first data item>, DataRow(1) = <second data item>, etc. ThenI added the row to the table by using Provider.Rows.A dd(datarow)
Did something similar for the 2nd table. Now I want to do a nested repeater, and I've figured out how to do that, but I'm apparently missing something on setting up the relations.
How do I set up a relationship between these two tables AT RUNTIME?
I haven't introduced a "Dataset" yet at all. Not sure where to do this, and I'm not sure what to do. Can someone take pity on me and give me the syntax for doing a relation when both tables are in memory already?
Thanks in advance!
Yes, I've seen that. Apparently I'm not smart enough to make it work. I
keep getting various errors no matter what I try. I'm very frustrated by the
apparent lack of examples for folks who are just starting out (like me). I
can usually figure out what I need if I can see an example. All of the
examples I've seen use some kind of DataSet.Fill method. I don't think I
need to do that... since I've "manually" populated my lists. I don't even
have a DataSet defined at all... just two tables. Do I *need* to define a
dataset?
Really, I'm just trying to get to the point where I have a nested repeater.
If anyone knows a simpler way to do that with two tables in memory, I'm open
for suggestions.
"Eliyahu Goldin" wrote: Have a look into the DataRelation class. That is exactly what you are after.
Using the Northwind database, drag orders and order details tables onto the
design canvass and create a dataset, then in code.
Dim relation As New Data.DataRelati on("MyRelation" ,
DataSet11.Order s.OrderIDColumn , DataSet11.Order _Details.OrderI DColumn)
DataSet11.Relat ions.Add(relati on)
--
Terry Burns http://TrainingOn.net
"Scott at Cedar Creek" <Sc************ ***@discussions .microsoft.com> wrote
in message news:6F******** *************** ***********@mic rosoft.com... Yes, I've seen that. Apparently I'm not smart enough to make it work. I keep getting various errors no matter what I try. I'm very frustrated by the apparent lack of examples for folks who are just starting out (like me). I can usually figure out what I need if I can see an example. All of the examples I've seen use some kind of DataSet.Fill method. I don't think I need to do that... since I've "manually" populated my lists. I don't even have a DataSet defined at all... just two tables. Do I *need* to define a dataset?
Really, I'm just trying to get to the point where I have a nested repeater. If anyone knows a simpler way to do that with two tables in memory, I'm open for suggestions.
"Eliyahu Goldin" wrote:
Have a look into the DataRelation class. That is exactly what you are after.
Dataset is a sort of a cornerstone in Asp.Net. In many cases you will
benefit a lot from using them. Look at them from the perspective of
organizing your data in the way suitable for your task, regardless how you
obtain the data.
Eliyahu
"Scott at Cedar Creek" <Sc************ ***@discussions .microsoft.com> wrote
in message news:6F******** *************** ***********@mic rosoft.com... Yes, I've seen that. Apparently I'm not smart enough to make it work. I keep getting various errors no matter what I try. I'm very frustrated by the apparent lack of examples for folks who are just starting out (like me). I can usually figure out what I need if I can see an example. All of the examples I've seen use some kind of DataSet.Fill method. I don't think I need to do that... since I've "manually" populated my lists. I don't even have a DataSet defined at all... just two tables. Do I *need* to define a dataset?
Really, I'm just trying to get to the point where I have a nested repeater. If anyone knows a simpler way to do that with two tables in memory, I'm open for suggestions.
"Eliyahu Goldin" wrote:
Have a look into the DataRelation class. That is exactly what you are after. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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