DataSource Controls :: SQL Data Source With Null Parameter?
Mar 17, 2010
I have a SQLDataSource on an ASP.Net C# page. I want the ability to add a Control Parameter based on a DropDown List that will either display records that are either NULL or Not NULL In a Column. I have the following Code Snippet:
SelectCommand="SELECT [PATID], [LastName], [FirstName], [UIN], [Rate], [Account], [Project], [Supervisor], [HireDate], [Assistantship], [Hourly], [FundingStartDate], [FundingEndDate], [TerminationDate], [Citizenship], [TitleCode], [Email], [Notes],
[SupervisorUpdateEnabled], [SupervisorTargetSemesterCode], [PATCertDate] FROM [PATAccounts] WHERE TerminationDate @Terminated ORDER BY [LastName]"
How can i get the values even when the Source or url is null from the below query
SELECT a.id, isnull((SELECT STUFF((SELECT '<li><a href="'+url+'">'+Source_Name+'</a> <span>(' + k.Source +')</span></li>' end FROM table1 i, table2 k, table3 j where i.CategoryID = j.Category_ID and i.CategoryID = c.Category_ID and i.Source = k.ID FOR XML PATH('')),1, 0, '')), '') AS Source_url, FROM @table4 c INNER JOIN table5 v on c.Category_ID = v.Category_ID
I'm trying to link 2 objectdatasource together using the Control Parameter Source.However, I'm stuck at the screenshot below. The Next button is disabled.
I am creating a TableAdapter using corresponding wizard, with a GetDataByID() query. The select statement is like this:select * from books where ID = ?Thus books are filtered by ID. But in case a null is passed as a parameter, I want to select all records rather than none. Could you please tell me how I can do it?
How do you use the http POST method with a Grid View on another page. I am trying to use the POST method to send the ID from the selected row of a Grid View, I am using a link button set to fire the select command and it has the Post Back URL set, from one page and then retrieve the ID value on another page using an Object Data Source. Also, under the Defining Parameters, I am setting the ID parameter to Form Parameter Source and have entered the Grid Views name in the Form Field.
I have a gridview with daatsource from MembershipUserCollection. When my collection doesn't contain any records the gridview just disappears. I want to display the empty gridview indicating no records exist rather than the grid just become invisible.
i am working on a website,As i am new to coding i got a problem in it. It was,I hav a gridview in which i am adding the details about a college, and in that i had a buton ("btnReservation") on clicking it another grid will be appeared in which, i hav to enter the reservation details so, till this step it is working fine, but if i enter one college details and clicking on the btnReservetion the grid is being dispalyed and i am able to enter and save the data, But if i enter the details of another college and clicking on the btnReservation, the rows which i hav already entered in the Reservation grid for the previous record are not being Refreshed and are remaining the same,So now i hav to make the gridview datasource null.
WHEN I USE IS NULL VALUE DIRECTLY INTO MY QUERY IT WORKS GREAT BUT WHEN I TRY TO ASSIGN IS NULL VALUE FROM A PARAMETER ITS WORKING BUT NO ROW RETURN.MY SP LOOK LIKE THISITS WORKING
AND Profile.MarketID IS NULL AND Profile.SourceID IS NULL AND Profile.NationalID IS NULL AND Profile.CRMLanguagesID IS NULL AND Profile.MarketID LIKE @PMarketID AND Profile.SourceID LIKE @PSourceID AND Profile.NationalID LIKE @PNationalID AND Profile.CRMLanguagesID @CRMLanguagesID
I am trying to use the datadesigner for a project I normally have written the datalayer by hand seems to me you have much more control over whats going on , however , I am starting a project which is going to have the datalayer done in the data designer but I cannot get past the most basic of tasks .Parameter name: Original_LastName
I am tryting to reach controls in the gridview rows by RowCommand event. I can take values of controls which are binded to gridview source successfully . But for all other controls which is not binded to gridview returns NULL value. All controls run at server. Why is that?
HiI am trying to send null value from my combobox and check it if its null in sp.
IF @Param1 IS NOT NULL BEGIN SET @Param1=@Param1 END ELSE BEGIN SET @Param1=' IS NULL' END mmsDataContext mms = new mmsDataContext(); RadGrid1.DataSource = mms.SON(Country.SelectedItem.Value); RadGrid1.DataBind();
Basically, the user Selects a row on GV that executes an Insert into a table the GV cell values of the selected row.
The SQL field data type is varchar. If the GV field is Null, the Insert adds the value to the SQL field. How do I keep the @nbsp; from being displayed in the cell of a data control when it is called at a later time? Do I add some more asp to my control parameter? do I add some vb code behind? Here are some relevant code snippets of existing code.
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.
on Login I get and set the compnay which has the ID so what in essence I want to do is on databind set the Where clause of data source to what the server side paramter for company ID is.
I am developing on application in that i have taken one list box and getting data to it using an object source.up to this stage it is fine.I need to compare these value what i get into list box and need to represent data in to a report viewer ..how to get these values from objectsource.i m new to c# i placing the code.
I have an object data source that is being used by an rdlc report, and the object data source uses a filter that is built from session variables passed to the page.
The report displays correctly, with the filter applied; however, I want to mark each of the rows as "printed" in a bit field in the database table.
In the table adapter, I have the following Update command that is used by the object data source:
UPDATE dbo.WorkOrder SET boolWorkOrderPrinted = 'True' WHERE (WorkOrderID = @Original_WorkOrderID)
i am a new user of asp.net and i am a learner so i just want to connect two dropdownlist to data souce and i want that the list item of second dropdown is changed according to change of selected item of first dropdown.
i have connect it to data source successfully it getting chaged items but it happance only when its load then if i select the next item of first one it would not work properly.
I am using dropdownlist in my view page with some values which will display corresponding ID(primary key of other table) in my database.If i leave my dropdownlist blank and save it in database then its showing null parameter error. Can you explain how to use this reference type to overcome this error
