> I have a report viewer on my webpage and it is linked to an objectdatasource.
> The parameter is a control on the form (Dropdownlist). But, when i change the
> selection in the dropdownlist and click the go button (on the web page), the
> reportviewer doesn't refresh.
>
> What i have done so far is i have the go button coded to do a select on the
> objectdatasource like ObjectDataSource1.Select(). I assign the parameter
> values in the Objectdatasource selecting event. This one calls the Function i
> have in the business object but the retrieve of the report viewer shows the
> same data. I even issued the ReportViewer.DataBind() in the Object datasource
> selected event. What am i doing wrong?

"Mike MacMillan" wrote:

> Houston,
>   a) what event are you doing your databinding in(OnInit, OnLoad,
> etc...)?
>   b) can you post a little code?
>
>   thanks,
>   Mike MacMillan
>
> Houston Lucifer wrote:
> > I have a report viewer on my webpage and it is linked to an objectdatasource.
> > The parameter is a control on the form (Dropdownlist). But, when i change the
> > selection in the dropdownlist and click the go button (on the web page), the
> > reportviewer doesn't refresh.
> >
> > What i have done so far is i have the go button coded to do a select on the
> > objectdatasource like ObjectDataSource1.Select(). I assign the parameter
> > values in the Objectdatasource selecting event. This one calls the Function i
> > have in the business object but the retrieve of the report viewer shows the
> > same data. I even issued the ReportViewer.DataBind() in the Object datasource
> > selected event. What am i doing wrong?
>
>

> In the Page Load Event
> If Not isPostBack() Then
>    ddlApproval.DataBind()
> End If
>
> In the page markup
>                <rsweb:ReportViewer ID="ReportViewer1" runat="server"
> Font-Names="Verdana" Font-Size="8pt"
>                     Height="400px" Width="100%">
>                     <LocalReport ReportPath="ItemStatusReport.rdlc"
> DisplayName="Item Status">
>                         <DataSources>
>                             <rsweb:ReportDataSource
> DataSourceId="ObjectDataSource1" Name="ItemStatusDS_ApprovalTable" />
>                         </DataSources>
>                     </LocalReport>
>                 </rsweb:ReportViewer>
>                 <asp:ObjectDataSource ID="ObjectDataSource1" runat="server"
> SelectMethod="GetItemsDenied"
>                     TypeName="ReportClass">
>                     <SelectParameters>
>                         <asp:ControlParameter ControlID="ddlApproval"
> DefaultValue="D" Name="approvalFlag"
>                             PropertyName="SelectedValue" Type="String" />
>                     </SelectParameters>
>                 </asp:ObjectDataSource>
>
> As soon as the page loads it picks up the first value in the dropdown and
> retrieves the report, but when i change the value in the dropdown
> (autopostback = yes) the report does not refresh. I called the
> ObjectDataSource.Select method in the DDL selectedindexchanged event it
> didn't help. I am wasting lot of time figuring out which is hopefully a
> simple problem.
>
> "Mike MacMillan" wrote:
>
> > Houston,
> >   a) what event are you doing your databinding in(OnInit, OnLoad,
> > etc...)?
> >   b) can you post a little code?
> >
> >   thanks,
> >   Mike MacMillan
> >
> > Houston Lucifer wrote:
> > > I have a report viewer on my webpage and it is linked to an objectdatasource.
> > > The parameter is a control on the form (Dropdownlist). But, when i change the
> > > selection in the dropdownlist and click the go button (on the web page), the
> > > reportviewer doesn't refresh.
> > >
> > > What i have done so far is i have the go button coded to do a select on the
> > > objectdatasource like ObjectDataSource1.Select(). I assign the parameter
> > > values in the Objectdatasource selecting event. This one calls the Function i
> > > have in the business object but the retrieve of the report viewer shows the
> > > same data. I even issued the ReportViewer.DataBind() in the Object datasource
> > > selected event. What am i doing wrong?
> >
> >

"Mike MacMillan" wrote:

> Houston,
>   i don't see the code for the dropdown in the snippet you provided, is
> this control created dynamically, or does the rsweb:ReportViewer
> control create a dropdownlist?  you are basically changing the report
> based on the selected item in the dropdownlist correct?  is the
> dropdownlist populated upon postback (ie, are you sure viewstate is
> working correctly?).
>
>   Mike MacMillan
>
>
>
> Houston Lucifer wrote:
> > In the Page Load Event
> > If Not isPostBack() Then
> >    ddlApproval.DataBind()
> > End If
> >
> > In the page markup
> >                <rsweb:ReportViewer ID="ReportViewer1" runat="server"
> > Font-Names="Verdana" Font-Size="8pt"
> >                     Height="400px" Width="100%">
> >                     <LocalReport ReportPath="ItemStatusReport.rdlc"
> > DisplayName="Item Status">
> >                         <DataSources>
> >                             <rsweb:ReportDataSource
> > DataSourceId="ObjectDataSource1" Name="ItemStatusDS_ApprovalTable" />
> >                         </DataSources>
> >                     </LocalReport>
> >                 </rsweb:ReportViewer>
> >                 <asp:ObjectDataSource ID="ObjectDataSource1" runat="server"
> > SelectMethod="GetItemsDenied"
> >                     TypeName="ReportClass">
> >                     <SelectParameters>
> >                         <asp:ControlParameter ControlID="ddlApproval"
> > DefaultValue="D" Name="approvalFlag"
> >                             PropertyName="SelectedValue" Type="String" />
> >                     </SelectParameters>
> >                 </asp:ObjectDataSource>
> >
> > As soon as the page loads it picks up the first value in the dropdown and
> > retrieves the report, but when i change the value in the dropdown
> > (autopostback = yes) the report does not refresh. I called the
> > ObjectDataSource.Select method in the DDL selectedindexchanged event it
> > didn't help. I am wasting lot of time figuring out which is hopefully a
> > simple problem.
> >
> > "Mike MacMillan" wrote:
> >
> > > Houston,
> > >   a) what event are you doing your databinding in(OnInit, OnLoad,
> > > etc...)?
> > >   b) can you post a little code?
> > >
> > >   thanks,
> > >   Mike MacMillan
> > >
> > > Houston Lucifer wrote:
> > > > I have a report viewer on my webpage and it is linked to an objectdatasource.
> > > > The parameter is a control on the form (Dropdownlist). But, when i change the
> > > > selection in the dropdownlist and click the go button (on the web page), the
> > > > reportviewer doesn't refresh.
> > > >
> > > > What i have done so far is i have the go button coded to do a select on the
> > > > objectdatasource like ObjectDataSource1.Select(). I assign the parameter
> > > > values in the Objectdatasource selecting event. This one calls the Function i
> > > > have in the business object but the retrieve of the report viewer shows the
> > > > same data. I even issued the ReportViewer.DataBind() in the Object datasource
> > > > selected event. What am i doing wrong?
> > >
> > >
>
>

"Houston Lucifer" wrote:

> Dropdown was being populated by a function using the markup
> <%# GetApprovalCodes() %> DataTextField="descr" DataValueField="code">
> 
> Yes, you are correct about the dropdown. I change the report based on the
> value on the dropdown.
>
> I think i had some serious problems with the view state. What i did now was
> set the enable autopost back of the Dropdown to false and added a go button
> on the web page. In the go button click event, i call the
> objectdatsource1.Select method and then i issued
> ReportViewer1.LocalReport.Refresh() command and it fixed it.
>
> Thanks very much for your help. I appreciate it.
>
> "Mike MacMillan" wrote:
>
> > Houston,
> >   i don't see the code for the dropdown in the snippet you provided, is
> > this control created dynamically, or does the rsweb:ReportViewer
> > control create a dropdownlist?  you are basically changing the report
> > based on the selected item in the dropdownlist correct?  is the
> > dropdownlist populated upon postback (ie, are you sure viewstate is
> > working correctly?).
> >
> >   Mike MacMillan
> >
> >
> >
> > Houston Lucifer wrote:
> > > In the Page Load Event
> > > If Not isPostBack() Then
> > >    ddlApproval.DataBind()
> > > End If
> > >
> > > In the page markup
> > >                <rsweb:ReportViewer ID="ReportViewer1" runat="server"
> > > Font-Names="Verdana" Font-Size="8pt"
> > >                     Height="400px" Width="100%">
> > >                     <LocalReport ReportPath="ItemStatusReport.rdlc"
> > > DisplayName="Item Status">
> > >                         <DataSources>
> > >                             <rsweb:ReportDataSource
> > > DataSourceId="ObjectDataSource1" Name="ItemStatusDS_ApprovalTable" />
> > >                         </DataSources>
> > >                     </LocalReport>
> > >                 </rsweb:ReportViewer>
> > >                 <asp:ObjectDataSource ID="ObjectDataSource1" runat="server"
> > > SelectMethod="GetItemsDenied"
> > >                     TypeName="ReportClass">
> > >                     <SelectParameters>
> > >                         <asp:ControlParameter ControlID="ddlApproval"
> > > DefaultValue="D" Name="approvalFlag"
> > >                             PropertyName="SelectedValue" Type="String" />
> > >                     </SelectParameters>
> > >                 </asp:ObjectDataSource>
> > >
> > > As soon as the page loads it picks up the first value in the dropdown and
> > > retrieves the report, but when i change the value in the dropdown
> > > (autopostback = yes) the report does not refresh. I called the
> > > ObjectDataSource.Select method in the DDL selectedindexchanged event it
> > > didn't help. I am wasting lot of time figuring out which is hopefully a
> > > simple problem.
> > >
> > > "Mike MacMillan" wrote:
> > >
> > > > Houston,
> > > >   a) what event are you doing your databinding in(OnInit, OnLoad,
> > > > etc...)?
> > > >   b) can you post a little code?
> > > >
> > > >   thanks,
> > > >   Mike MacMillan
> > > >
> > > > Houston Lucifer wrote:
> > > > > I have a report viewer on my webpage and it is linked to an objectdatasource.
> > > > > The parameter is a control on the form (Dropdownlist). But, when i change the
> > > > > selection in the dropdownlist and click the go button (on the web page), the
> > > > > reportviewer doesn't refresh.
> > > > >
> > > > > What i have done so far is i have the go button coded to do a select on the
> > > > > objectdatasource like ObjectDataSource1.Select(). I assign the parameter
> > > > > values in the Objectdatasource selecting event. This one calls the Function i
> > > > > have in the business object but the retrieve of the report viewer shows the
> > > > > same data. I even issued the ReportViewer.DataBind() in the Object datasource
> > > > > selected event. What am i doing wrong?
> > > >
> > > >
> >
> >