Showing posts with label events. Show all posts
Showing posts with label events. Show all posts

Saturday, February 25, 2012

Capturing events in a DataGrid

I'm trying to add functionality to a VB 6 application allowing
customer service to add a customer number to a new customer.
Customers are added to the database by sales personnel, and a
prospective customer may have multiple rows due to projected orders
for multiple products. Customer numbers are assigned when a new
customer makes their first order.

I'm using a DataGrid connected to an ADO Data Control. The data
control is connected to a view in SQL Server using the 'distinct'
directive (I know it's not updatable) to show only one line per new
customer. What I wish to do is capture the update event (probably
through the FieldChangeComplete routine of the data control), manually
assign the newly entered customer number to all appropriate rows in
the database, and cancel the update event with no notifications.

I'm having two problems:

1. I can't capture the newly entered customer number. The Text
property of the DataGrid returns the old value of the cell instead of
the newly entered value. How do I get the edited value?

2. Even though I set adStatus = adStatusCancel in the
FieldChangeComplete routine, I get a Microsoft DataGrid Control dialog
stating 'Operation was Canceled'. How do I avoid this notification?Bill Reynolds (TruckeeBill@.ltol.com) writes:
> I'm trying to add functionality to a VB 6 application allowing
> customer service to add a customer number to a new customer.
> Customers are added to the database by sales personnel, and a
> prospective customer may have multiple rows due to projected orders
> for multiple products. Customer numbers are assigned when a new
> customer makes their first order.
> I'm using a DataGrid connected to an ADO Data Control. The data
> control is connected to a view in SQL Server using the 'distinct'
> directive (I know it's not updatable) to show only one line per new
> customer. What I wish to do is capture the update event (probably
> through the FieldChangeComplete routine of the data control), manually
> assign the newly entered customer number to all appropriate rows in
> the database, and cancel the update event with no notifications.
> I'm having two problems:
> 1. I can't capture the newly entered customer number. The Text
> property of the DataGrid returns the old value of the cell instead of
> the newly entered value. How do I get the edited value?
> 2. Even though I set adStatus = adStatusCancel in the
> FieldChangeComplete routine, I get a Microsoft DataGrid Control dialog
> stating 'Operation was Canceled'. How do I avoid this notification?

Sounds like you should ask in an ADO group. Or maybe even a pure VB
group. If you insist on asking here, we will only tell you to use stored
procedures and not relying on things happening behind the scenes. :-)

--
Erland Sommarskog, SQL Server MVP, esquel@.sommarskog.se

Books Online for SQL Server SP3 at
http://www.microsoft.com/sql/techin.../2000/books.asp

Tuesday, February 14, 2012

can't use the index tuning wizard wioth a function??

Hi,
I receive this error when I try to execute the index tuning wizard:
"There are no events in the workload. Either the trace
file contained no SQL batch or RPC events or the SQL
script contained no SQL queries."
I have tried from the query analyzer and from a workload trace file, in the
2 cases I receive the error.
My query contain a join to a custom function which return a simple list.
if I remove the function, then the index tuning works fine.
my query:
select * from table1 inner join dbo.MyFunction(@.Param) A on table1.ID =
A.ID
what can I do?
thanks.
Jerome.
Jj wrote:
> Hi,
> I receive this error when I try to execute the index tuning wizard:
> "There are no events in the workload. Either the trace
> file contained no SQL batch or RPC events or the SQL
> script contained no SQL queries."
> I have tried from the query analyzer and from a workload trace file,
> in the 2 cases I receive the error.
> My query contain a join to a custom function which return a simple
> list. if I remove the function, then the index tuning works fine.
> my query:
> select * from table1 inner join dbo.MyFunction(@.Param) A on
> table1.ID = A.ID
> what can I do?
> thanks.
> Jerome.
You probably chose the wrong template for recording of events in profiler.
There is a template SQLProfilerTuning. It should work with that one.
Kind regards
robert
|||I'm using standard templates which works fine with any query those with my
function.
but why I can't optimize from query analyzer?
"Robert Klemme" <bob.news@.gmx.net> wrote in message
news:e$XXF4wcFHA.2760@.tk2msftngp13.phx.gbl...
> Jj wrote:
> You probably chose the wrong template for recording of events in profiler.
> There is a template SQLProfilerTuning. It should work with that one.
> Kind regards
> robert
>

can't use the index tuning wizard wioth a function??

Hi,
I receive this error when I try to execute the index tuning wizard:
"There are no events in the workload. Either the trace
file contained no SQL batch or RPC events or the SQL
script contained no SQL queries."
I have tried from the query analyzer and from a workload trace file, in the
2 cases I receive the error.
My query contain a join to a custom function which return a simple list.
if I remove the function, then the index tuning works fine.
my query:
select * from table1 inner join dbo.MyFunction(@.Param) A on table1.ID =
A.ID
what can I do?
thanks.
Jerome.Jj wrote:
> Hi,
> I receive this error when I try to execute the index tuning wizard:
> "There are no events in the workload. Either the trace
> file contained no SQL batch or RPC events or the SQL
> script contained no SQL queries."
> I have tried from the query analyzer and from a workload trace file,
> in the 2 cases I receive the error.
> My query contain a join to a custom function which return a simple
> list. if I remove the function, then the index tuning works fine.
> my query:
> select * from table1 inner join dbo.MyFunction(@.Param) A on
> table1.ID = A.ID
> what can I do?
> thanks.
> Jerome.
You probably chose the wrong template for recording of events in profiler.
There is a template SQLProfilerTuning. It should work with that one.
Kind regards
robert|||I'm using standard templates which works fine with any query those with my
function.
but why I can't optimize from query analyzer?
"Robert Klemme" <bob.news@.gmx.net> wrote in message
news:e$XXF4wcFHA.2760@.tk2msftngp13.phx.gbl...
> Jj wrote:
> You probably chose the wrong template for recording of events in profiler.
> There is a template SQLProfilerTuning. It should work with that one.
> Kind regards
> robert
>

can't use the index tuning wizard wioth a function??

Hi,
I receive this error when I try to execute the index tuning wizard:
"There are no events in the workload. Either the trace
file contained no SQL batch or RPC events or the SQL
script contained no SQL queries."
I have tried from the query analyzer and from a workload trace file, in the
2 cases I receive the error.
My query contain a join to a custom function which return a simple list.
if I remove the function, then the index tuning works fine.
my query:
select * from table1 inner join dbo.MyFunction(@.Param) A on table1.ID = A.ID
what can I do?
thanks.
Jerome.Jéjé wrote:
> Hi,
> I receive this error when I try to execute the index tuning wizard:
> "There are no events in the workload. Either the trace
> file contained no SQL batch or RPC events or the SQL
> script contained no SQL queries."
> I have tried from the query analyzer and from a workload trace file,
> in the 2 cases I receive the error.
> My query contain a join to a custom function which return a simple
> list. if I remove the function, then the index tuning works fine.
> my query:
> select * from table1 inner join dbo.MyFunction(@.Param) A on
> table1.ID = A.ID
> what can I do?
> thanks.
> Jerome.
You probably chose the wrong template for recording of events in profiler.
There is a template SQLProfilerTuning. It should work with that one.
Kind regards
robert|||I'm using standard templates which works fine with any query those with my
function.
but why I can't optimize from query analyzer?
"Robert Klemme" <bob.news@.gmx.net> wrote in message
news:e$XXF4wcFHA.2760@.tk2msftngp13.phx.gbl...
> Jéjé wrote:
>> Hi,
>> I receive this error when I try to execute the index tuning wizard:
>> "There are no events in the workload. Either the trace
>> file contained no SQL batch or RPC events or the SQL
>> script contained no SQL queries."
>> I have tried from the query analyzer and from a workload trace file,
>> in the 2 cases I receive the error.
>> My query contain a join to a custom function which return a simple
>> list. if I remove the function, then the index tuning works fine.
>> my query:
>> select * from table1 inner join dbo.MyFunction(@.Param) A on
>> table1.ID = A.ID
>> what can I do?
>> thanks.
>> Jerome.
> You probably chose the wrong template for recording of events in profiler.
> There is a template SQLProfilerTuning. It should work with that one.
> Kind regards
> robert
>