I have a Repeater control in a web user control.
The web user control has a public method named PopulateRepeate r which takes
an ID as an parameter and populates the repeater control based on the
parameter.
When I call PopulateRepeate r from the User Control page_load event it
populates the repeater without a problem.
When I call PopulateRepeate r from a procedure in the web form which contains
the user control, I get an error in PopulateReader (which is in the User
Control code behind module):
Sub PopulateRepeate r (iID as integer)
dim ds as DataSet = GetDataSet(iID)
Repeater1.DataS ource = ds ' causes error "Object reference not set
to an instance of an object"
Repeater1.DataB ind
Exit Sub
4  1798 
Apparently, the method called is not returning a DataSet.
--
HTH,
Kevin Spencer
Microsoft MVP
Professional Numbskull
Show me your certification without works,
and I'll show my certification
*by* my works.
"bill" <be****@datamti .com> wrote in message
news:uM******** ******@TK2MSFTN GP04.phx.gbl... I have a Repeater control in a web user control.
The web user control has a public method named PopulateRepeate r which
takes an ID as an parameter and populates the repeater control based on
the parameter.
When I call PopulateRepeate r from the User Control page_load event it
populates the repeater without a problem.
When I call PopulateRepeate r from a procedure in the web form which
contains the user control, I get an error in PopulateReader (which is in
the User Control code behind module):
Sub PopulateRepeate r (iID as integer)
dim ds as DataSet = GetDataSet(iID)
Repeater1.DataS ource = ds ' causes error "Object reference not set
to an instance of an object"
Repeater1.DataB ind
Exit Sub
It's not the dataset, its the Repeater which is 'nothing'.
I found the reason - the way a web user control is declared is different in
VS2005 than VS2003, I guess because of the partial class structure of the
web forms..
In VS2005, I find you just go ahead and call the user control directly using
its ID -- without creating an object variable--in order to call it's methods
from the host code behind:
ucUserControl1. PopulateRepeate r
In VS 2003, the user control first had to be declared in the host code
behind in order to call its methods:
Protected ucUserControl1 as New ucUserControl
If you do this in VS2005, you get an error
"ucUserCont rol1 already declared as... in this class"
so I was using
dim ucUserControl1 as new ucUserControl
and getting the "Object reference not set to an instance of an object"
error.
I'm still getting used to partial classes.
"Kevin Spencer" <ke***@DIESPAMM ERSDIEtakempis. com> wrote in message
news:OT******** ******@TK2MSFTN GP05.phx.gbl... Apparently, the method called is not returning a DataSet.
--
HTH,
Kevin Spencer
Microsoft MVP
Professional Numbskull
Show me your certification without works,
and I'll show my certification
*by* my works.
"bill" <be****@datamti .com> wrote in message
news:uM******** ******@TK2MSFTN GP04.phx.gbl...I have a Repeater control in a web user control.
The web user control has a public method named PopulateRepeate r which
takes an ID as an parameter and populates the repeater control based on
the parameter.
When I call PopulateRepeate r from the User Control page_load event it
populates the repeater without a problem.
When I call PopulateRepeate r from a procedure in the web form which
contains the user control, I get an error in PopulateReader (which is in
the User Control code behind module):
Sub PopulateRepeate r (iID as integer)
dim ds as DataSet = GetDataSet(iID)
Repeater1.DataS ource = ds ' causes error "Object reference not
set to an instance of an object"
Repeater1.DataB ind
Exit Sub
Glad you got it sorted out!
--
HTH,
Kevin Spencer
Microsoft MVP
Professional Numbskull
Show me your certification without works,
and I'll show my certification
*by* my works.
"bill" <be****@datamti .com> wrote in message
news:u5******** *****@TK2MSFTNG P04.phx.gbl... It's not the dataset, its the Repeater which is 'nothing'.
I found the reason - the way a web user control is declared is different
in VS2005 than VS2003, I guess because of the partial class structure of
the web forms..
In VS2005, I find you just go ahead and call the user control directly
using its ID -- without creating an object variable--in order to call it's
methods from the host code behind:
ucUserControl1. PopulateRepeate r
In VS 2003, the user control first had to be declared in the host code
behind in order to call its methods:
Protected ucUserControl1 as New ucUserControl
If you do this in VS2005, you get an error
"ucUserCont rol1 already declared as... in this class"
so I was using
dim ucUserControl1 as new ucUserControl
and getting the "Object reference not set to an instance of an object"
error.
I'm still getting used to partial classes.
"Kevin Spencer" <ke***@DIESPAMM ERSDIEtakempis. com> wrote in message
news:OT******** ******@TK2MSFTN GP05.phx.gbl... Apparently, the method called is not returning a DataSet.
--
HTH,
Kevin Spencer
Microsoft MVP
Professional Numbskull
Show me your certification without works,
and I'll show my certification
*by* my works.
"bill" <be****@datamti .com> wrote in message
news:uM******** ******@TK2MSFTN GP04.phx.gbl...I have a Repeater control in a web user control.
The web user control has a public method named PopulateRepeate r which
takes an ID as an parameter and populates the repeater control based on
the parameter.
When I call PopulateRepeate r from the User Control page_load event it
populates the repeater without a problem.
When I call PopulateRepeate r from a procedure in the web form which
contains the user control, I get an error in PopulateReader (which is in
the User Control code behind module):
Sub PopulateRepeate r (iID as integer)
dim ds as DataSet = GetDataSet(iID)
Repeater1.DataS ource = ds ' causes error "Object reference not
set to an instance of an object"
Repeater1.DataB ind
Exit Sub
Thanks!
"Kevin Spencer" <ke***@DIESPAMM ERSDIEtakempis. com> wrote in message
news:Os******** ******@TK2MSFTN GP04.phx.gbl... Glad you got it sorted out!
--
HTH,
Kevin Spencer
Microsoft MVP
Professional Numbskull
Show me your certification without works,
and I'll show my certification
*by* my works.
"bill" <be****@datamti .com> wrote in message
news:u5******** *****@TK2MSFTNG P04.phx.gbl... It's not the dataset, its the Repeater which is 'nothing'.
I found the reason - the way a web user control is declared is different
in VS2005 than VS2003, I guess because of the partial class structure of
the web forms..
In VS2005, I find you just go ahead and call the user control directly
using its ID -- without creating an object variable--in order to call
it's methods from the host code behind:
ucUserControl1. PopulateRepeate r
In VS 2003, the user control first had to be declared in the host code
behind in order to call its methods:
Protected ucUserControl1 as New ucUserControl
If you do this in VS2005, you get an error
"ucUserCont rol1 already declared as... in this class"
so I was using
dim ucUserControl1 as new ucUserControl
and getting the "Object reference not set to an instance of an object"
error.
I'm still getting used to partial classes.
"Kevin Spencer" <ke***@DIESPAMM ERSDIEtakempis. com> wrote in message
news:OT******** ******@TK2MSFTN GP05.phx.gbl... Apparently, the method called is not returning a DataSet.
--
HTH,
Kevin Spencer
Microsoft MVP
Professional Numbskull
Show me your certification without works,
and I'll show my certification
*by* my works.
"bill" <be****@datamti .com> wrote in message
news:uM******** ******@TK2MSFTN GP04.phx.gbl...
I have a Repeater control in a web user control.
The web user control has a public method named PopulateRepeate r which
takes an ID as an parameter and populates the repeater control based on
the parameter.
When I call PopulateRepeate r from the User Control page_load event it
populates the repeater without a problem.
When I call PopulateRepeate r from a procedure in the web form which
contains the user control, I get an error in PopulateReader (which is
in the User Control code behind module):
Sub PopulateRepeate r (iID as integer)
dim ds as DataSet = GetDataSet(iID)
Repeater1.DataS ource = ds ' causes error "Object reference not
set to an instance of an object"
Repeater1.DataB ind
Exit Sub
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