I'm working on a local report that has two ObjectDataSource objects. When trying to bring up the report from an ASP.NET page using the ReportViewer control, the report goes out to the first ODS and gets its data just fine but when it calls out to the second ODS to get that data the HttpContext.Current property is null. We're using InProc sessions and the worker process count is set to 1. Has anyone else bumped into this one?
I'm stumped after a few days of searching and trying to create a Data Source to Oracle for a report under Visual Studio 2005. I followed the guide at
[URL]
I am able to connect through the Server Explorer to our Oracle database using both .NET Framwork Data Provider for Oracle and Oracle Data Provider for .NET. I can execute queries on both of these and retrieve data.
The problems start when I try to create a data source under the Solution Explorer. I have created a Business Intelligence project on my local computer.
Data Source Wizard Select Create a data source based on an existing or new connection. Click New... Here the Provider is disabled and it appears defaulted to SqlClient Data Provider. All I can do is connect to a MSSQL server.
I can successfully run a sample report on the local computer. DataSource and Report are valid it renders perfect.
But when i move my DataSource and Report to Remote server which is hosted by a company, then i always receive following error!. It is really disgusting.
An error occurred during client rendering. An error has occurred during report processing. Cannot create a connection to data source 'DataSource1'.
For more information about this error navigate to the report server on the local server machine, or enable remote errors
I have a reportViewer control and I dynamically setting the report path and dataset in the page load event if it is not a post back. This first report displays without issue. However, when I attempt to change the report path / dataset via the onChange event from a dropdown list I get the following error:
A data source instance has not been supplied for the data source "Summary_DataTable1".
This code works fine and the summary report is displayed the first time the page is loaded.
I'm working on a site where we want to include a pie chart on a page. Right now I'm working on implementing that through Reporting Services (RDLC file) with an object data source.The SelectMethod of my object data source is a method that returns a list of business objects; lets say a List<Alpha> and Alpha has a sub object Beta with a Name property. In my report definition I have set the Category groups to be: =Fields!Beta.Value.Name this means that Alpha.Beta.Name are my pie slices. I got the following error:
An error has occurred during report processing. The Group expression for the rouping 'chart1_CategoryGroup1' contains an error: Object variable or With block variable not set.I was able to confirm this is because Beta is nullable and was able to fix the issue by updating the object Alpha to return a new Beta() if the Beta property is null. This solution is not ideal though because there are other places in my code where I need Beta to be null if it doesn't have a value yet.Is there a way to update the report definition to accept a null property as valid? Ideally I would like to specify the value as "Not Set" if Beta is null.
I don't know it happen just to me or Others have the same situation too . All the time when i bind a DataControl to an ObjectDataSource in "Configure Data Source" wizard of ObjectDataSource,when i set parameter source as "Control" in "ControlId" DropdownList there are TWO Item of every control in the WebForm , while it make sense be one.
how to make my source code to display on one line instead of multiple in source view. The display drives me batty when I'm trying to find something and I would prefer to display across the page instead of multiple lines down the page.
I couldn't decide where would be the most apprioate. I looking for an online source control site, if such a thing exists? I've checked out codeplex and thats really for open source projects ? which this isn't. does anyone have a recommendations?
Traditionally with an Object Data Source, the wired up class will have its public properties available for binding (i.e. Gridview columns, etc.) which works well. But what if one of my wired up business objects has a property that is an object itself; can I drill down to a property on that object property and still use it?
So in additiona to the traditional:MyBusniessObject.OrderID...I want to use:MyBusniessObject.Customer.NameID Your 1st response might be to just wire up the 'Customer' class, but I need properties both on 'MyBusinessObject'and 'Customer'. I do not think this can be done, as the ODS will not display properties on an object instance property. I have tried manually typing in the drilled down value as well, but that wasn't a success either.
Basically I want to take the following:And make it match the styling of the rest of the application.I am creating a custom error page in my C# based project and I want it to be able to show the same information that is displayed in the ASP.NET default error page. From fiddling with reflector I can see that this is generated through HttpException.GetHtmlErrorMessage() but when I try to use this in my exception it returns null.
Error is:- The data source does not support server-side data paging.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.NotSupportedException: The data source does not support server-side data paging.
Source Error: Line 34: con.Open(); Line 35: GridView1.DataSource = cmd.ExecuteReader(); Line 36: GridView1.DataBind(); Line 37: con.Close(); Line 38: }
This is my code and i am only able to edit the one data under the category school.But what i nd is to edit the other categories like the name,email...etc..how do i modify my code in the update command.Another thing is to delete the data how do i do that?
I'm new to ASP.net 3.5 and trying to create a test site so I can figure out how to use it in the real world. I have created a FormView (Formview1) based on a Client table using Linq Data Sources. The page includes a DropDownList to lookup Clients. I have added a list option (<asp:ListOption value="" Text="(Select Client)" and set AppendDataBoundItems=true so my added option is displayed. I decided to try to use Formview with only the Edit and Insert Modes, and I have set the Default Mode = Insert. When you open the page, a blank Client record is displayed.
The Client record contains serveral lookup fields and they have drop down lists for each. When I select a client from the Client DropDownList, is get the following message 'ddlClientType' has a SelectedValue which is invalid because it does not exist in the list of items I had this problem before and decided the best way to handle this (in the interim) was to turn off foreign key constraints for each of the lookup fields (e.g. ClientType) in SQL Server. That worked for 2-3 days. Now the problem has started again.
When I develop in other applications, I would simply create a lookup data source based on a Union Query with the actual data and a blank record. How can you do this using Linq DataSources. Can you get access and modify the queries?
I've been using the Item Inserted event for my data controls, such as details view. I'm wondering if there are advantages to doing this with the data sources instead of the data control. There is a lot of overlap in the events provided by these two types of controls. Are there advantages to using the events raised by the data source instead of the ones raised by the data control itself. Should I be using the events raised by the data source instead of the control used to enter the data?
I have a GridView or DetailsView and its bound to a CslaDataSource.I noticed that the "Object_Select()" event is fired automatically with every time the page is loaded or refreshed.How I can perfrom mnaual biding between the DetailsView Control and CslaDataSource ?I want to control binding via code using the DetailsView.DataBind() method in certain cases only.
I'm creating a page that allows the user to create a new object that will later be stored in the database. The problem is that the design of ASP.NET data controls seems to insist upon only working with pre-existing data that has been stored in a database (or XML, etc...).
I'm basically trying to get the user to compose a list of items and specify a quantity for each item. I could do this by generating table rows but the rows are lost at each postback. The data view controls seem to be designed only to be bound to a data source but until the list is complete, the data can only be in memory.
What control is appropriate for this and how can I achieve this with that control?
I am playing about just now trying to teach myself a little bit about the entity framework. I have a Gridview data bound to a Entity Date Source using the Entity Framework. If I select certain items in that list I then wish to redirect another page and populate another gridview with just the items selected (but with more detail, different includes/navigation properties)
This is probably the most simple thing but I have spent 2 hours banging my head on the wall trying to get this to work. Essentially I have a continue button which when clicked should identify all the UIDs (a column in the gridview) of the rows and allow me to subset to just these rows and pass them to another page to be rebound to another datagrid
I enable AutoGenerateEditButton = "true", which can show me edit button in the child grid. Also i have tried to use the event rowediting which can return e.NewEditIndex too. for the master i use sqlDatasource design time. for the child grid am confusing how to do the edit/delete/add.
following link good enuf for master grid
[URL]
for child grid datasource if am not mistaken, guess need to assign the datasource during runtime. am not sure how to do this?
I have extended GridView in order to have consistent look & feel, paging and sorting. However, when the page is first time loaded, the select method is getting called twice. It works fine when i move between pages in pagination.
