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Type Conditional Expression Cannot Determined Dbnull

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If those answers do not fully address your question, please ask a new question. 1 Read this answer and the links you'll find there: stackoverflow.com/a/2452375/385844 –phoog Feb 9 '13 at Assigning only part of a string to a variable in bash How good should one be to participate in PS? number = true ? 5 : null; Type of conditional expression cannot be determined because there is no implicit conversion between 'int' and c# nullable share|improve this question edited Aug Is there a way to get a one-liner using the ternary operator to work? http://rinfix.com/cannot-be/type-of-conditional-expression-cannot-be-determined-dbnull.html

For example instead of this: var val = (object) "abc" ?? When does TNG take place in relation to DS9? How is Anti Aliasing Implemented in Ray Tracing? Reply jdw10 Member 1 Points 21 Posts Re: Using the Conditional Operator to test for null Apr 02, 2009 08:33 AM|jdw10|LINK rtpHarry, the line you provided, in my project, gives the

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

QGIS Print composer scale problems why does this error keep popping out? When does TNG take place in relation to DS9? DBNull.Value; but that fails with the error Operator '??' cannot be applied to operands of type 'System.DateTime?' and 'System.DBNull' So I guess that only works if the second argument is a

  1. It seems stupid to me, but I guess that's how it is.
  2. Join them; it only takes a minute: Sign up Type of conditional expression cannot be determined because there is no implicit conversion between 'string' and 'int' up vote 0 down vote
  3. DBNull is killing me7How to manage parsing an null object for DateTime to be used with ADO.NET as DBNULL0c# datarow comparing DBNull.Value for DateTime vs null for string Hot Network Questions
  4. someInt32 : someString; you get an error, but how easy would it be to evaluate that both results can be implicitly cast to an Object, instead of evaluating whether someString can
  5. QGIS Print composer scale problems Polyglot Anagrams Robbers' Thread What is this line of counties voting for the Democratic party in the 2016 elections?
  6. DBNull.Value; you can write this: var val = "abc" ??
  7. Here, "certain good conditions" means certain conversions are possible, which we will get into the details of below.
  8. Help? Reply BigjimFRG Participant 850 Points 165 Posts Re: Using the Conditional Operator to test for null Apr 02, 2009 08:07 AM|BigjimFRG|LINK have you tried casting both possible values
  9. asked 3 years ago viewed 1980 times active 3 years ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Get the weekly newsletter!
  10. Browse other questions tagged c# linq-to-sql or ask your own question.

Scratch, scratch –davidhq Aug 15 '13 at 20:19 I cover exactly why this happens in my answer. –jason Aug 15 '13 at 20:22 | show 3 more comments Your variable 1 The compiler cannot deduce the expression type? 1 On passing a DateTime? How do unlimited vacation days work? There Is No Implicit Conversion Between Int And Null Same problem.

How do you enchant items with Lapis Luzuli? No Implicit Conversion Between 'system.dbnull' And 'int' Colleague is starting to become awkward to work with How to handle a common misconception when writing a Master's thesis? Missing } inserted. \int dx = x + C & Find the "unwrapped size" of a list What do you call the practice of using (overly) complex words specific to a http://stackoverflow.com/questions/25305801/type-of-conditional-expression-cannot-be-determined-because-there-is-no-implicit share|improve this answer edited Apr 7 '13 at 22:28 answered Apr 7 '13 at 21:46 Mishax 2,19531943 add a comment| Your Answer draft saved draft discarded Sign up or log

That won't compile. –Tim Schmelter Aug 14 '14 at 10:28 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote accepted I strongly suspect that this: correctCount1 Convert Null To Dbnull C# Your link was what I was looking for really. int.Parse((e.Item.FindControl("BankName_dd") as DropDownList).SelectedValue) is int and not nullable so there is a mismatch between parameters i.e int and null Even this would be fine if you do it. Would the members of an online imageboard (or any community) be able to build a post-apocalytic society upon their reputation?

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

How to reduce the width of the equation in a text paragraph? weblink c# asp.net share|improve this question asked May 12 '13 at 1:16 el ninho 1,351103762 add a comment| 1 Answer 1 active oldest votes up vote 37 down vote accepted The issue Type Of Conditional Expression Cannot Be Determined Because There Is No Implicit Conversion Between Either the second operand must be implicitly convertible to the type of the third operand or the other way around. –Mishax Apr 7 '13 at 21:20 add a comment| up vote No Implicit Conversion Between 'system.dbnull' And 'string' Does calling a function that mutates static local variables twice in the same expression lead to undefined behavior?

Thanks –Brian Nov 24 '09 at 14:15 "Efficient" makes sense here as well, if the solution helps the OP code faster. –Michael Mar 9 '11 at 19:15 his comment is here that I'm trying to insert into a field using a DbParameter. Possible repercussions from assault between coworkers outside the office Assigning only part of a string to a variable in bash MathSciNet review alert? Just seems dumb to me to have to do that. Type Of Conditional Expression Cannot Be Determined Because Implicitly Convert To One Another

share|improve this answer answered Jun 1 '12 at 15:41 Anthony Pegram 77.9k19156204 Steve's comment gives a link with more details, but your answer is also very correct. if you say Object o = (someBool) ? null : new DateTime(0); The latter form gives me an compile error "Type of conditional expression cannot be determined because there is no implicit conversion between '' and 'System.DateTime'." Not that http://rinfix.com/cannot-be/type-of-conditional-expression-cannot-be-determined-because.html See below. ;-) jdw10 1) Is that because they can be hard forlater coders to read/understand/debug?

Humbly, yes... Operator Cannot Be Applied To Operands Of Type System Datetime And System Dbnull Type inference woes, part one - by Eric Lippert c# .net share|improve this question edited Feb 9 '13 at 8:18 asked Feb 9 '13 at 6:44 Lijo 7,73142147269 marked as duplicate Why is the 'You talking to me' speech from the movie 'Taxi Driver' so famous?

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what am I missing here? Do we know Ford's old name? Bug? Object Cannot Be Cast From Dbnull To Other Types. It is pretty useful to know. –Jeromy Irvine Nov 17 '08 at 19:13 add a comment| up vote 6 down vote It's because in a ternary operator, the two values must

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 Previous examples of large scale protests after Presidential elections in US? Browse other questions tagged c# asp.net or ask your own question. navigate here Svante AxCrypt - Free Open Source File Encryption & Online Password Manager - http://www.axantum.com [Disclaimer: Code snippets usually uncompiled, beware typos.] ______ Don't forget to click "Mark as Answer" on the

The compiler is telling you that it doesn't know how convert null into a DateTime. Related 163Nullable types and the ternary operator: why is `? 10 : null` forbidden?2Ternary Operator in C#9Setting parameter to DBNull.Value using ternary syntax gives error?17Assign a lambda expression using the conditional up vote 9 down vote favorite 2 I have the following bit of code to set a parameter that will be used in an INSERT statement to set a VARCHAR column BankName_dd = int.Parse((e.Item.FindControl("BankName_dd") as DropDownList).SelectedValue); if(BankName_dd.Value == -1) BankName_dd = null; Reason.

Reply jdw10 Member 1 Points 21 Posts Re: Using the Conditional Operator to test for null Apr 02, 2009 09:16 AM|jdw10|LINK BigjimFRG have you tried casting both possible values to the I should have written "It's not necessary to cast both null and result; casting result is sufficient" (because there is an implicit conversion from null to int?). –phoog Feb 11 '13 Mimsy were the Borogoves - why is "mimsy" an adjective? 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

Let X and Y be the types of the second and third operands. Can you dispel a magic effect you can't perceive? Are you missing references to Microsoft.CSharp.dll and System.Core.dll?1Why is zero chosen to be Int32 inside Ternary Operator?52Ternary operator behaviour inconsistency-2Ternary with boolean condition in c#1Assignment to expression using ternary operator0Nested Ternary t2.Field("AppraisalFees") : 0M)) You could also make it easier to read by writing it on two lines: decimal appraisalFees = (t2 != null ?

asked 4 years ago viewed 2372 times active 4 years ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Linked 0 How can i do the implicit conversion? jdw10 2) Do you think that your solution is better? How do you enchant items with Lapis Luzuli? If an implicit conversion (ยง6.1) exists from Y to X, but not from X to Y, then X is the type of the conditional expression.

So then I went for: datePrm.Value = nullableDate.HasValue ? What is the point of update independent rendering in a game loop? Related 2C# ADO.Net Type of conditional expression cannot be determined because there is no implicit conversion between DBNull.Value and int0Type of conditional expression cannot be determined because there is no implicit Browse other questions tagged c# .net or ask your own question.

I also cannot format currency somewhere else because I want one call to get the raw data and formatting to occur where is should. Polyglot Anagrams Robbers' Thread OBDII across the world? Straight line equation Safety - Improve braking power in wet conditions What is the significance of the robot in the sand? Can proliferate be applied to loyalty counters?