Hi,
There is a component that is binding the results of a search to a DataList.
By clicking on an image in the datalist, the user can download that
particular item. We are using the DataKeys property to retrieve the ID (as
stored in the database), to then locate the item, and do some other stuff
and push the file out to the user.
The first time the search is performed, the user can download the file, and
the correct file gets downloaded. Let's say there were 10 results
However, the second time the search is done (different criteria), let's say
there were 20 results. Now, the first 10 results, the DataKeys property
returns the ID from the *first* search. For the last 10, the results are
correct.
So it seems the DataKeys property is not getting updated with the new
results, even though a new DataBind is taking place. So all the "extra"
rows, have a new entry in the DataKeys property, and this is correct. But
the first X rows, where X is the number of rows in the first result set, do
not.
Can anyone shed any light on this? 4 5342
Do you have a code snippet I can take a look at?
/Cristian
"Marina" <zl*******@nospam.hotmail.com> wrote in message
news:uk*************@TK2MSFTNGP10.phx.gbl... Hi,
There is a component that is binding the results of a search to a
DataList. By clicking on an image in the datalist, the user can download that particular item. We are using the DataKeys property to retrieve the ID
(as stored in the database), to then locate the item, and do some other stuff and push the file out to the user.
The first time the search is performed, the user can download the file,
and the correct file gets downloaded. Let's say there were 10 results
However, the second time the search is done (different criteria), let's
say there were 20 results. Now, the first 10 results, the DataKeys property returns the ID from the *first* search. For the last 10, the results are correct.
So it seems the DataKeys property is not getting updated with the new results, even though a new DataBind is taking place. So all the "extra" rows, have a new entry in the DataKeys property, and this is correct. But the first X rows, where X is the number of rows in the first result set,
do not.
Can anyone shed any light on this?
I don't think that's really necessary given the description, but here:
Sub DataList_ItemCommand(ByVal sender As Object, ByVal e As
DataListCommandEventArgs)
SendFile(MyList1.DataKeys(e.Item.ItemIndex))
End Sub
SendFile, just uses the key to look up the path of the file and then sends
it.
"Cristian Suazo" <cr******@hotmail.com> wrote in message
news:er**************@TK2MSFTNGP11.phx.gbl... Do you have a code snippet I can take a look at?
/Cristian
"Marina" <zl*******@nospam.hotmail.com> wrote in message news:uk*************@TK2MSFTNGP10.phx.gbl... Hi,
There is a component that is binding the results of a search to a DataList. By clicking on an image in the datalist, the user can download that particular item. We are using the DataKeys property to retrieve the ID (as stored in the database), to then locate the item, and do some other
stuff and push the file out to the user.
The first time the search is performed, the user can download the file, and the correct file gets downloaded. Let's say there were 10 results
However, the second time the search is done (different criteria), let's say there were 20 results. Now, the first 10 results, the DataKeys property returns the ID from the *first* search. For the last 10, the results are correct.
So it seems the DataKeys property is not getting updated with the new results, even though a new DataBind is taking place. So all the "extra" rows, have a new entry in the DataKeys property, and this is correct.
But the first X rows, where X is the number of rows in the first result set, do not.
Can anyone shed any light on this?
Does that matter what the databind is? The item template being used is not
relevant to the DataKeys property and how that is being populated. If there
are 5 dropdown and 8 labels, or just one checkbox in each item list, the
DataKeys property is being populated exactly the same way regardless.
The databinding code itself, is just:
MyList1.DataSource = GetDataSource()
MyList1.DataBind()
Where GetDataSource just returns a table with the results of the query.
Again, the databinding code is pretty much the only way you can databind, so
I don't think it is helpful.
"Cristian Suazo" <cr******@hotmail.com> wrote in message
news:O7**************@TK2MSFTNGP12.phx.gbl... I understood the description you gave, that was not the issue. I mean that
I would like to see when the datagrid is called and so on get an overview of whats happening... I understand the ItemCommand event, I am more
interesten in seeing when you databind and so on....
"Marina" <zl*******@nospam.hotmail.com> wrote in message news:ON**************@TK2MSFTNGP12.phx.gbl... I don't think that's really necessary given the description, but here:
Sub DataList_ItemCommand(ByVal sender As Object, ByVal e As DataListCommandEventArgs) SendFile(MyList1.DataKeys(e.Item.ItemIndex)) End Sub
SendFile, just uses the key to look up the path of the file and then
sends it.
"Cristian Suazo" <cr******@hotmail.com> wrote in message news:er**************@TK2MSFTNGP11.phx.gbl... Do you have a code snippet I can take a look at?
/Cristian
"Marina" <zl*******@nospam.hotmail.com> wrote in message news:uk*************@TK2MSFTNGP10.phx.gbl... > Hi, > > There is a component that is binding the results of a search to a DataList. > By clicking on an image in the datalist, the user can download that > particular item. We are using the DataKeys property to retrieve the ID (as > stored in the database), to then locate the item, and do some other stuff > and push the file out to the user. > > The first time the search is performed, the user can download the file, and > the correct file gets downloaded. Let's say there were 10 results > > However, the second time the search is done (different criteria), let's say > there were 20 results. Now, the first 10 results, the DataKeys property > returns the ID from the *first* search. For the last 10, the results are > correct. > > So it seems the DataKeys property is not getting updated with the
new > results, even though a new DataBind is taking place. So all the "extra" > rows, have a new entry in the DataKeys property, and this is
correct. But > the first X rows, where X is the number of rows in the first result set, do > not. > > Can anyone shed any light on this? > >
C'mon Marina,
maybe the young Cristian needs only in wich sub or
function the datagrid databind happens.....
Is it too hard to find?
C'mon Marina
theDude -----Original Message----- Does that matter what the databind is? The item template
being used is notrelevant to the DataKeys property and how that is being
populated. If thereare 5 dropdown and 8 labels, or just one checkbox in each
item list, theDataKeys property is being populated exactly the same way
regardless. The databinding code itself, is just:
MyList1.DataSource = GetDataSource() MyList1.DataBind()
Where GetDataSource just returns a table with the results
of the query. Again, the databinding code is pretty much the only way
you can databind, soI don't think it is helpful.
"Cristian Suazo" <cr******@hotmail.com> wrote in message news:O7**************@TK2MSFTNGP12.phx.gbl... I understood the description you gave, that was not the
issue. I mean thatI would like to see when the datagrid is called and so on
get an overview of whats happening... I understand the ItemCommand event,
I am moreinteresten in seeing when you databind and so on....
"Marina" <zl*******@nospam.hotmail.com> wrote in message news:ON**************@TK2MSFTNGP12.phx.gbl... > I don't think that's really necessary given the
description, but here: > > Sub DataList_ItemCommand(ByVal sender As Object,
ByVal e As > DataListCommandEventArgs) > SendFile(MyList1.DataKeys(e.Item.ItemIndex)) > End Sub > > SendFile, just uses the key to look up the path of
the file and thensends > it. > > "Cristian Suazo" <cr******@hotmail.com> wrote in
message > news:er**************@TK2MSFTNGP11.phx.gbl... > > Do you have a code snippet I can take a look at? > > > > /Cristian > > > > "Marina" <zl*******@nospam.hotmail.com> wrote in
message > > news:uk*************@TK2MSFTNGP10.phx.gbl... > > > Hi, > > > > > > There is a component that is binding the results
of a search to a > > DataList. > > > By clicking on an image in the datalist, the user
can download that > > > particular item. We are using the DataKeys
property to retrieve the ID > > (as > > > stored in the database), to then locate the item,
and do some other > stuff > > > and push the file out to the user. > > > > > > The first time the search is performed, the user
can download the file, > > and > > > the correct file gets downloaded. Let's say there
were 10 results > > > > > > However, the second time the search is done
(different criteria), let's > > say > > > there were 20 results. Now, the first 10 results,
the DataKeys property > > > returns the ID from the *first* search. For the
last 10, the results are > > > correct. > > > > > > So it seems the DataKeys property is not getting
updated with thenew > > > results, even though a new DataBind is taking
place. So all the "extra" > > > rows, have a new entry in the DataKeys property,
and this iscorrect. > But > > > the first X rows, where X is the number of rows
in the first result set, > > do > > > not. > > > > > > Can anyone shed any light on this? > > > > > > > > > > > >
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