I'm trying to write a query that will work in two situations. In some situations the value for AOL will be Null and in others there will be a vnumeric value. How do I get this procedure to accept Null if its passed in but also accept a numeric value if it's passed in?
[Code]....
I have a static function in the aspx page with this signature:
public static bool UserNeedsToBeAlertedPwdReset(out DateTime dtExpires)
{
DateTime dt = DateTime.MivValue;
return true;
}
So I want to call this function from the client side, using the jQuery Ajax. How do I get a hold of the out value? Edit Alternatevly I could check for nulls if this is possible with Ajax + jQuery like that:
ublic static DateTime? UserNeedsToBeAlertedPwdReset()
{
if(blah)
return null;
return DateTime.Now;
}
I have a javascript to validate and avoid null values for my form but there are some textboxes that I need to be 'optional'. I tried erasing the validation for province address and province contact in javascript to make it optional, but the problem is whenever I add the values in the database, an error message appears "Input string was not in a correct format". It's in C# This is my present code wherein the provincial address and provincial contact must only be optional:
protected void submitButton_Click(object sender, EventArgs e)
My designer.cs file of all the SQL tables is generated by LINQ-TO-SQL. The class and attribute in question is like this.
[global::System.Data.Linq.Mapping.TableAttribute(Name="dbo.Transfers")]
public
partial
class
Transfer :INotifyPropertyChanging,[code]...
I need to assign a null to the attribute so that the value 0 does not get save to the database.
I'm currently stuck with a problem with MVC2 RC and validation on a dropdownlist :
I have a page with some fields and a dropdownlist. The dropdownlist is not a mandatory field so I would like to save a null value into my property.
Unfortunately, I can't validate my page with a null selected value, because when I look into the modelstate just on the first line of my action, I've already an error telling me I must choose an item.
Is it normal working of dropdownlist validation or is it a bug ?
i am a new bee in SQL Server 2005. I have a stored procedure that accept two parameter , variable @ColumnName as column name and @SearchText as search text.
My stored procedure is written as below:
[Code]....
but the error i get is "The 'usp_GetPlantTest' procedure attempted to return a status of NULL, which is not allowed. A status of 0 will be returned instead."
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
View 2 RepliesI want to set my textbox textmode="time"
View 1 RepliesI have this code in my code behind class. I keep getting this error that "Value cannot be null, parameter name source"
[Code]....
[Code]....
If this information does not exist in the table displays this error:Value Can not BE null. Parameter name: Entity
<cc1:ConfirmButtonExtender DisplayModalPopupID="ModalPopupExtender4" ID="ConfirmButtonExtender4"
runat="server" TargetControlID="lnkremoveloc" Enabled="False" OnClientCancel="RemoveLocations">
</cc1:ConfirmButtonExtender>
[code]...
VS2010 .NET 4 - This simple app works using my local system. When I publish it on an IIS 7 web server, I get this error when the application runs this Linq query with a containes function.
var results = view_UserInfoRepository.View_UserInfo.Where(x => x.Email.Contains(eMail)).OrderBy(x => x.Email);
Server Error in '/' Application.Value cannot be null. Parameter name: textDescription: 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.ArgumentNullException: Value cannot be null.Parameter name: text Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[ArgumentNullException: Value cannot be null.
Parameter name: text]
System.Data.Linq.SqlClient.SqlHelpers.GetStringContainsPattern(String text, Char escape, Boolean& usedEscapeChar) +595083
[code]...
I am triing to bind the data to a listbox from sql server then got the error "Value cannot be null.Parameter name: key"
ddlCountry = new Obout.ComboBox.ComboBox();
ddlCountry.Width = 200;
ddlCountry.Height = 200;
ddlCountry.DataTextField = "Country";
ddlCountry.DataValueField = "Country";
sqlCommand = "SELECT [Country] FROM [tbl_LookupCountry] where [Country] IS NOT NULL";
SqlConnection sqlConCountry = new SqlConnection(connectString);
SqlCommand sqlCommCountry = new SqlCommand();
sqlCommCountry.Connection = sqlConCountry;
sqlCommCountry.CommandType = System.Data.CommandType.Text;
sqlCommCountry.CommandText = sqlCommand;
sqlCommCountry.CommandTimeout = 300;
sqlConCountry.Open();
reader = sqlCommCountry.ExecuteReader();
ddlCountry.DataSource = reader;
ddlCountry.DataBind();
sqlConCountry.Close();
I have a simple web-service and want to invoke it from a client. this service has a parameter but when I invoke it from client and send to it a parameter , in server side service run successfully but always parameter has no value and is null ( depend on parameter's type ex if it's string , value will be string and if it's int , value will be zero ) here is server and client code:
[Code]....
there was server and cliend ( proxy class code ) but when I run it and trace in server side always parameter that I send to it has no value.
I have got a problem about setting the optional parameter to NULL in sql sp. Initially I set all the parameters null in the sql sp. That's OK. But I would like to set the parameters to Null again if a particular parameter has a value of - 1 by using the "IF ELSE" statement block. However, the problem was that I was unable to set the parameter to NULL in the IF ELSE statement. So please correct my IF ELSE statement in the store procedure. This is really urgent and important for my project.
spGetMealsByNutritions]
@MealTypeID Int,
@Gluten Bit = Null,
@Dairy Bit = Null,
@Egg Bit = Null,
@Fish Bit = Null,
@Veg Bit = Null,
@Pork Bit = Null,
@Beef Bit = Null,
@Soy Bit = Null,
@Sesame Bit = Null
[code]...
I'm having this very annoying issue.Trying to make ASP.NET profile work in my MVC2 application.This is the C# code:
[Code]....
Here is the web.config file:
[Code]....
And finally the controller action:
[Code]....
As soon as I submit the form I get an error. I can't even debug C# as the error occurs before stepping into
public ActionResult Create(UserProfile model, string submitButton)...The error is:
Server Error in '/' Application.
Value cannot be null.Parameter name: username
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.ArgumentNullException: Value cannot be null.Parameter name: username Source Error:
[Code]....
Stack Trace:
[Code]....
[ArgumentNullException: Value cannot be null.
Parameter name: username]
System.Web.Util.SecUtility.CheckParameter(String& param, Boolean checkForNull, Boolean checkIfEmpty, Boolean
[code]...
i am inserting the value of dynamic controls into the db like so;
Dim ae1 As DropDownList = FindControl("AreasExpertise1")
If (ae1 IsNot Nothing) Then
x.Parameters.AddWithValue("@areasexpertise1", ae1.SelectedValue)
End If
then in my query i have parameters like so;
INSERT INTO [foo] ([etc], [etc], [etc], [areasexpertise1], [areasexpertise2])
VALUES (@etc, @etc, @etc, @areasexpertise1, @areasexpertise2)
When the user fills out the form, they see only areasexpertise1 and have to press a button to dynamically insert another area of expertise...If they only have 1 area of expertise, the query crashes and says 'must declare variable @areasexpertise2.Please can you tell me a way to either insert nulls when the parameters are empty, or to ignore them?
i'm using MVC 2, RC, and i have a controller method:
[Code]....
and i have an <input type="file"../> in my form. during post, however, the files parameter is null.
for some reason i get an error saying the following. i have tried to look it up on google but there seems to be nothing about this error.
View 2 RepliesHow can i check if an output parameter is null before i bind it to a asp literal, and if it is null i want to just make the literal
hname1.Text = cmd.Parameters("@hotel1").Value
hname1.DataBind()
hname2.Text = cmd.Parameters("@hotel2").Value
[code]...
I have set the value of an int parameter to the attribute of a textbox.The textbox can be empty or null, how to check whether the parameter is empty or null?
View 5 RepliesI'm using a custom route to create the following URL (http://mysite/subscriber/12345) where 12345 is the subscriber number. I want it to run the ShowAll action in the Subscriber controller. My route is firing and using Phil's route debugger, when I pass in the above url, the route debugger shows ID as 12345.
My controller is accepting an int as subscriberID. When it fires, the controller throws the error "The parameters dictionary contains a null entry for parameter 'id' of non-nullable type 'System.Int32". Why does the route debugger show a value and the controller doesn't see it?
Here's my route (first one is the culprit)
routes.MapRoute(
"SubscriberAll",
"subscriber/{id}",
new { controller = "Subscriber", action = "ShowAll", id=0 },
new { id = @"d+" } //confirm numeric
);
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults
);
I'm getting a null in the ShowAll action? Here is the action method signature:
public ActionResult ShowAll(int id)
How to check the query string value null, if null then display the default value instead of object reference error.
View 1 RepliesWHEN 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
[ArgumentNullException: Value cannot be null.Parameter name: Original_LastName] DAL.northwindTableAdapters.EmployeesTableAdapter.Update(String LastName, String FirstName, String Title, String TitleOfCourtesy, Nullable`1 BirthDate, Nullable`1 HireDate, String Address, String City, String Area, String PostalCode, String Country, String HomePhone, String Extension, Byte[] Photo, String Notes, Nullable`1 ReportsTo, String PhotoPath, String test, Int32 Original_EmployeeID, String Original_LastName, String Original_FirstName, String Original_Title, String Original_TitleOfCourtesy, Nullable`1 Original_BirthDate, Nullable`1 Original_HireDate, String Original_Address, String Original_City, String Original_Area, String Original_PostalCode, String Original_Country, String Original_HomePhone, String Original_Extension, Nullable`1 Original_ReportsTo, String Original_PhotoPath, String Original_test, Int32 EmployeeID) in C:Users
[code]...