Visual Studio :: DataSet Not Recognized As Buesiness Object By ObjectDataSource?
Nov 15, 2010
I have an ObjectDataSource in Visual Studio 2008. I have a DataSet defined with a TableAdapter. However, when I go to select the Table Adapter to use in the ObjectDataSource, nothing shows up. I double checked that the DataSet is in fact in the App_Code folder. I do not know what else to try. The following code is the ASP code for that ObjectDataSource:
I just installed the release version of Visual Studio 2010, and it looks like there's something wrong with the standard ASP.NET server controls. When I create a basic server control, such as a TextBox, the editor underlines it in green and says (I also get no intellisense for ASP.NET controls): Element 'TextBox' is not a known element. This can occur if there is a compilation error in the Web site, or the Web.config file is missing. The web site builds fine, and the Web.config file is not missing:
In some of my new websites under .NET 4.0 my Visual Studio does not recognize System.Linq as a valid class. I need to add a reference to System.Core in Web.Config to solve this but there are projects where this is not needed.
I am in the process of adding my custom aspx pages to the LAYOUTS folder(a folder I created) in a WSPbuilder solution in VS08. The problem I am having is when I build the solution it fails because the controls(Load, Textboxes, dropdown lists,etc) in the code behind file for the custom aspx pages say they are not defined. They all have a blue squiggly line and I get over 100 errors.what to do to get the WSP to recognize the code behind pages.
I used Object Test Bench to test my classes in VS 2008 professional edition . Right click on Class name and then selected create instance ,then its Constructor, there comes a dialog box, that just gives a message and a TextBox field is present there, i filled that field with any name and clicked OK.Then error message comes that "Create Instance Failed" and its error code is "0x80004005" . What's this ? How to instantiate object of my classes ?
I just switched to VS 2010, and upgraded a previous project. I'm getting the following error on a page in design mode for 2 controls:Error Creating Control - ObjectName Object reference not set to an instance of an object.One of them is a simple label, and the other is a ajax update panel. Other pages look fine. When I build and test the app, the page renders fine in the browser and functions fine - the label functions as expected and the content in the update panel works as expected.why I'm getting this error? I tried some of the google results to no avail.
I have a query that, when run in SQL Server Mgmt Studio query analyzer window, completes in about 5 seconds. However, when I attach this query to a table adapter in visual studio and try to preview the data, I get an error that says:"Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding."Please note, the dataset was successfully configured using the TableAdapter Configuration Wizard, so there didn't appear to be any syntax errors with my query. Also note that I have other datasets connecting to the same database that are working as expected, so it doesn't appear that it would be an issue with the server not responding. Does anyone have thoughts on what kinds of things, other than a query taking too long to run, that could cause this specific error?
i need to prepare a report as a table. but my table needs to contain data from two schemas. so my doubt is, is it possible to set two dataset names for a table in its property?
I upgraded a project from Visual Studio 2005 to 2008. Now when I'm in the design view of a dataset (an xsd file) and try to add a new column a get an error message:"Failed to add column. The server version is not supported. Only servers up to Microsoft SQL Server 2005 are supported".But if I add a column from Visual Studio 2005 to a SQL Server 2008 database it works fine.
I am trying to write a script in Visual Studio 2008 (using a VB project) that will, upon the clicking of a button:
- An file object will be created.
-Said file object will read in a number of files from a specified file path.
-A dataset will be created and populated with fields from two columns within a database table; app_id and company_name.
-The script will read through the file names and fields recorded in the dataset, renaming the file to the app_id if the original file name contained the company_name.
The code I have so far to do this:
[Code]....
The problem is that currently this code will only rename the file if the file name and company_name match exactly, ideally I'd need to include a clause to make it rename if the file name is "LIKE" or "contains" the company_name. To be honest I'm not even sure if what I want is possible, or if what I have is even on the right track. So far my own research into the issue has been less than conclusive.
I'm developing ASP.net project with C# using vs visual-studio-2008. when I drag drop asp control from tool box to the design view then I go to the code behind I should see the control in pop up object list. at the begin I had no problem but not when I drag and drop any new control I can not see it and even if I write it manually when give me an error this this name not exist.
I was debugging and noticed the following in VS 2008. I had a breakpoint set to see what the values were for the objects used with my parameters in my DAL. I hovered over the object in question and the little window came up with the name of the object(with the blue brick to the left of it), a vertical line, and the objects value to the right of it. This is what I expected to happen.
What I didn't expect is the that I was able to change the value of the object in the little window. I then tried to continue the execution with the new value that I inserted but wasn't able to get the new value to remain. I suspect maybe I didn't do something right.
Is there a way to get the new inserted value(in the little window in break mode) to be used? It seems like there is or I shouldn't have been able to change it..
I'm not sure if I'm asking this correctly, but I'm having a problem with a web service. The company hosting a web service wants to see what I'm submitting to the API. Is there something in the debugger I can use to "print" or somehow get the request object and all of it's properties with values in Visual Studio? I'm guessing there's some way to get the XML request?
Is it possible to serialize object direct from Visual Studio .NET Debug window. I have a very complex object structure which contains multiple sub objects along with List item etc. I mean the Hierarchy is complex. And I need to analyze the object graph closely for that I need an offline view (may be in the from of XML/ Serialization). I can not do that from VS.
(One can reccomend me to use XMLSeriliazation in my code to generate but please consider that may not be alwways possible because of
1. with default .NET Serialization class a complex object which has manu sub objcts with Collection. is not get serialized properly. So need custom serialization & deserilazation code for that, does not come witf Microsoft Librarry.)
2. I am using it somewhere (Silverlift app) where such operation may be not possible.
3. I do not want to spent time creating or evaluating any ones custom serilaization code/tool
I used Object Test Bench to test my classes in VS 2008 professional edition . Right click on Class name and then selected create instance ,then its Constructor, there comes a dialog box, that just gives a message and a TextBox field is present there, i filled that field with any name and clicked OK.Then error message comes that "Create Instance Failed" and its error code is "0x80004005" . What's this ? How to instantiate object of my classes ?
But with the same procedure i can create object in WPF applications. What is problem with asp.net ?
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.
project was clean after release build, but when i ran "Run Code Analysis" i got 256 errors. the error below is one of them. will be great help. if anybody can explain, what is the meaning of this error?
Im working in VWD and currently building a site with html and css. When I try to move some of the objects (DIV, P etc) that ar set with absolute positioning, other objects on the page are moved to the right of my main content div.
