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Type Of Conditional Expression Cannot Be Determined Dbnull

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Linked 10 Why assigning null in ternary operator fails: no implicit conversion between null and int? 2 EntLib Way to Bind “Null” Value to Parameter Related 0Error when trying to use BankName_dd = int.Parse((e.Item.FindControl("BankName_dd") as DropDownList).SelectedValue) != -1 ? Is adding the ‘tbl’ prefix to table names really a problem? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Source

that I'm trying to insert into a field using a DbParameter. more hot questions question feed lang-cs about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Why do some banks have more than one routing number in the US? x => x.NoteCategory != "Collections" : x => true; //-- error: cannot convert lambda to lambda I'm getting the following error: Type of conditional expression cannot be determined because there is http://stackoverflow.com/questions/16503266/type-of-conditional-expression-cannot-be-determined-because-there-is-no-implicit

Type Of Conditional Expression Cannot Be Determined Because There Is No Implicit Conversion Between

There is no implicit conversion from int? How is the correct air speed for fuel combustion obtained at the inlet of the combustor? number = true ? 5 : (int?)null; share|improve this answer answered Aug 15 '13 at 19:45 Marc Gravell♦ 634k14817662236 1 Or you can do int?

  1. Is there an actual army in 1984?
  2. TryParse() returns a System.Boolean, System.DBNull.Value is a System.DBNull - since an expression can only have one type, the compiler can't determine what to do when the left side of the :
  3. straight lines + point of intersection in TikZ more hot questions question feed lang-cs about us tour help blog chat data legal privacy policy work here advertising info mobile contact us
  4. var result = int.Parse((e.Item.FindControl("BankName_dd") as DropDownList).SelectedValue); int?
  5. Update: I don't really get why the ??
  6. Furniture name for waist-high floor-sitting shelf cabinet thing I am seen in darkness and in light, What am I?
  7. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed
  8. You still have to assign 'value' before that line - or use the Parse() method.
  9. this now wakes the first parameter as nullable int int?
  10. why does this error keep popping out?

The relevant section of the C# 3.0 spec is 7.13, the conditional operator: The second and third operands of the ?: operator control the type of the conditional expression. Bug? BankName_dd = int.Parse((e.Item.FindControl("BankName_dd") as DropDownList).SelectedValue) != -1 ? There Is No Implicit Conversion Between Int And Null BankName_dd = int.Parse((e.Item.FindControl("BankName_dd") as DropDownList).SelectedValue); if(BankName_dd.Value == -1) BankName_dd = null; Reason.

asked 1 year ago viewed 245 times active 1 year ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Related 27C#: No implicit conversion between 'lambda expression' and 'lambda expression'?2C# No Implicit Conversion Between 'system.dbnull' And 'int' I also cannot format currency in my grid because I am pivoting my data and must have autogenerate columns set to true. Therefore, the compiler cannot determine the type of the expression. The curious part is that I can do the following with no error, which should be exactly the same thing as using inline conditional syntax like above!?!

as type for both by casting null to it and using the implicit conversion of int to int? Convert Null To Dbnull C# more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed The issue here is that in int? asked 4 years ago viewed 14993 times active 2 years ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Get the weekly newsletter!

No Implicit Conversion Between 'system.dbnull' And 'int'

Vent kitchen hood vent to roof turbine vent? http://stackoverflow.com/questions/33376838/type-of-conditional-expression-cannot-be-determined-because-there-is-no-implicit Is it possible to hand start modern planes? Type Of Conditional Expression Cannot Be Determined Because There Is No Implicit Conversion Between Why does Cutie act like this and lesser robots listen to it? No Implicit Conversion Between 'system.dbnull' And 'string' Below is an example.

Join them; it only takes a minute: Sign up Type of conditional expression cannot be determined because there is no implicit conversion between 'int' and '' up vote 2 down vote this contact form How does Gandalf end up on the roof of Isengard? How good should one be to participate in PS? public static object NullCheck(this string self) { return (string.IsNullOrEmpty(self)) ? (object)DBNull.Value : self; } usage in your scenario: database.AddInParameter(cmd, "@description", DbType.String, ilo.Description.NullCheck()); share|improve this answer answered Jun 1 '12 at 16:03 Type Of Conditional Expression Cannot Be Determined Because Implicitly Convert To One Another

asked 3 years ago viewed 18735 times active 1 year ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Visit Chat Linked 0 implicit conversion between 'int' and '' 2 Polyglot Anagrams Cops' Thread Find the "unwrapped size" of a list Using the eval command twice US Election results 2016: What went wrong with prediction models? I'm creating the parameter like so: DbParameter datePrm = updateStmt.CreateParameter(); datePrm.ParameterName = "@change_date"; And then I want to put the value of the DateTime? have a peek here TIKZ: foreach not compatible with calc-library?

Even though I probably won't use this method, it just taught me a few things about C# that I didn't know before; like I didn't even notice the IsNullOrEmpty method on Operator Cannot Be Applied To Operands Of Type System Datetime And System Dbnull If/else for 20 parameters is just not way. My cat sat on my laptop, now the right side of my keyboard types the wrong characters How do unlimited vacation days work?

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I suggested he cast the conditional values to the object data type. http://msdn.microsoft.com/en-us/library/ty67wk28.aspx c# .net enterprise-library ternary-operator share|improve this question edited Jun 1 '12 at 15:37 Filburt 10.3k73366 asked Jun 1 '12 at 15:30 Jim 3,63292045 1 You could get details on share|improve this answer edited Aug 15 '13 at 9:12 answered Aug 15 '13 at 9:02 Ehsan 19.2k32647 add a comment| Your Answer draft saved draft discarded Sign up or log Object Cannot Be Cast From Dbnull To Other Types. How to prove that authentication system works, and that the customer is using the wrong password?

Can I sell a stock immediately MathSciNet review alert? How can I claim compensation? public void TestConditionOperator() { // Conditional Operator: ? : bool isUsa = true; SqlParameter param = new SqlParameter(); // Problem: 'System.DBNull' and 'string' (“USA“) are different object types. Check This Out Do we know Ford's old name?

why does this error keep popping out? My cat sat on my laptop, now the right side of my keyboard types the wrong characters How to reduce the width of the equation in a text paragraph? database.AddInParameter(cmd, "@description", DbType.String, (ilo.Description.Equals(string.Empty)) ? Throwing is expensive, and doing so for something that is so easily avoided is simply not good programming.

Missing } inserted. \int dx = x + C & How to handle a common misconception when writing a Master's thesis? DBNull.Value as object: "USA" as object; } Published: 4/30/2004 12:00 AM Title: Solution to the "no implicit conversion…" using the Conditional Operator ? : ]]> Posted in C# Apr·30 Leave a Can an object *immediately* start moving at a high velocity? new SqlInt16(total) : SqlInt16.Null; It's not a one-liner, but then again those are seldom to strive for.

I can't without some help. This is just an example.