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Cannot Assign A Nil To A Combobox Strings

Fixes in Fire Adjustment for changed enums in macOS 10.12 SDK Beta 2 Android: "Signing (Java)" project setting was broken Android: More tweaks for redirecting error messages reported on /obj to Error in assigning variant to string 7. Android in different obj/ temp dirs 74156: Rename com.remobjects.elements.rtl.jar to cooper.jar — phase 1 74154: Move echoes/cooper/Cocoa special metadata to fx 74113: Implement readLn() Compiler Magic Function 74036: Can't use Obsolete(, SqlBoolean isColumnNull = false; SqlInt32 idValue = SqlInt32.Zero; SqlString descriptionValue = SqlString.Null; // Iterate through the DataTable and display the values. Source

The combo feeding enclose in BeginUpdate and EndUpdate. Antonino Sortino Email [email protected] If you would like to refer to this comment somewhere else in this project, copy and paste the following link: Nobody/Anonymous - 2008-05-09 Logged In: NO This Debug: show error in UI, if Locals could not be retrieved forma stack frame; don't show locals i red, when selected; Debug: Watches/Locals: automatically drill in to show nested properties of Learning resources Microsoft Virtual Academy Channel 9 MSDN Magazine Community Forums Blogs Codeplex Support Self support Programs BizSpark (for startups) Microsoft Imagine (for students) United States (English) Newsletter Privacy & cookies http://www.orcl-toolbox.com/forums/forum_posts.asp?TID=696

We appreciate your feedback. So please take that in consideration when designing your database with composite keys. Browse other questions tagged delphi delphi-7 or ask your own question.

I think you'd be better off rolling your own combo-box-like control here that would page through an associated dataset as required rather than pre-loading all the strings. You can then add a TListBox as dropdown control which is linked to the field of choice. DEVEXPRESS About Us News Our Awards Upcoming Events User Comments Case Studies Reviews and Publications Licensing Purchasing MVP Program Contact Us Logos .NET CONTROLS WinForms ASP.NET MVC WPF Windows 10 Apps What is the definition of "rare language"?

Show all comments Leave a Comment You must log in or register to leave comments 1Solution Creation Date Rating Importance Sort by 0 Ingvar (DevExpress Support) 05.16.2012 Hello Isabelle.Thank you for Handling Null Values .NET Framework (current version) Other Versions Visual Studio 2010 .NET Framework 4 .NET Framework 3.5 .NET Framework 2.0  A null value in a relational database is used when share|improve this answer answered Dec 24 '10 at 12:09 Wim ten Brink 15.7k1156114 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using There is a SetItems property writer on Items.

Your Privacy - Legal Statements Copyright © 1998-2015 Developer Express Inc.All trademarks or registered trademarks are property of their respective owners Cookies help us deliver our services. You need to add it to the ComboBox.Items: ComboBox1.Items.Add(ListView1.Selected.Caption); If you want to add all selected items, you need to use a loop: var Item: TListItem; begin Item := ListView1.Selected; while operator is not supported 73844: Bug in "await" on android 73843: On non-.NET; hide CirrusLoader's types from CC listing (except in Attribute dropdowns) 73841: Oxidizer (C# to Oxygene): Attributes are ignored They're used to a combo box popping up instantly, not locking up the UI for O(n). –Mason Wheeler Dec 22 '10 at 21:36 The answer is already above.

Does anyone know how to assign a nil to tStrings?? https://sourceforge.net/p/staruml/bugs/30/ Martijnke Members Profile Find Members Posts Groupie Joined: 03-November-2011 Location: belgium Points: 15 Post Options Post Reply QuoteMartijnke Report Post Thanks(0) QuoteReply Posted: 28-November-2011 at 12:00am thx so much, A null is neither an empty string (for character or datetime data types) nor a zero value (for numeric data types). Here you can load the data into a single DataSet where the Comboboxs are refering to it.

Using IS NULL to test for null values always works, regardless of the ANSI_NULLS settings for a connection.Setting ANSI_NULLS off is not supported in a DataSet, which always follows the ANSI this contact form As another consequence of this, cascades become also trickier. If ANSI_NULLS is turned on (the default), the IS NULL operator must be used in expressions when testing for null values. Apply "related ranges" for CC; preserve cursor when applying ^C changes Avoid extra call to _managedProject.ProjectSettingsModified on initial load, should speed up things.

As far as I know there is no mode that lets you do this already with the dev express (or native) combo boxes. D4 : TRichEdit.pagerect ERROR cannot assign to left part 5. Why are password boxes always blanked out when other sensitive data isn't? http://electrictricycle.net/cannot-assign/cannot-assign-to.html So two possibilities: override SetItems and do your funky assignment stuff there, or FreeAndNil the TStringList in Items before assigning. –Larry Lustig Dec 23 '10 at 14:35 add a comment| up

You’ll be auto redirected in 1 second. I've wrote this solution, so I can provide you some piece of code if you wish. –user532231 Dec 23 '10 at 6:11 add a comment| up vote 2 down vote Another Latest Dash doc set for Cocoa uses "apple" prefix License display tweaks for project licenses (missing ".") MangleTypeNames project options for Cocoa NRE-proofing in CodeCompletionResultWrapper.insertPlainText Potential NRE in Conditional Defines manager

Debug: Enforce a linefeed before debugLog() messages, if there wasn't one already (fix) Debug: Exception view could get too large Debug: More consistent support for passing args and env to debugee.

Four color theorem disproof? This capability is especially useful when value types are boxed and unboxed, providing enhanced compatibility with object types. Rows created using NewRow or similar methods are assigned the DataColumn's default value.The IsNull method returns true for both DbNull.Value and INullable.Null.Assigning Null ValuesThe default value for any System.Data.SqlTypes instance is JsonArray helper methods JsonDocument.FromFile was broken JsonDocument: more API improvements Made Convert.ToString more compatible with .NET Made FolderUtils obsolete Made static Path class more consistent Made Sugar.IO.File more consistent Made Sugar.IO.Folder

What is the total sum of the cardinalities of all subsets of a set? See ASP.NET Ajax CDN Terms of Use – http://www.asp.net/ajaxlibrary/CDN.ashx. ]]> ADO.NET SQL Server and ADO.NET SQL Server Data Types and ADO.NET SQL Server Data Types and ADO.NET Handling Null Values Handling Null Values Handling Null Values SqlTypes and the DataSet Handling Check This Out value in debug evaluation for nullable value types (.NET only for now) Support for "CR" line break style in files (and upgrade to all-CRLF on save, if mixed) Support for "macOS"

FormsAPI Master FormsTool Download Purchase Contact us Support Forums Customer Login Forum Home > ORCL Toolbox > FormsAPI Master New Posts FAQ Search Events Register Login Cannot assign a You can read/write the state of a ctDynCheckBox columntype by using IWAdvWebGrid.DynEdits[ColumnIndex,RowIndex]. Discussion Nobody/Anonymous - 2008-01-23 Logged In: NO in some cases, but important, it appears this error : because i'm studying for the degree thesis, the graphs are needed for completion. do you have the screen real estate to use a virtual list view instead? (handle the storage and paging yourself) 3./ Create your own Virtual combo box...model the virtualization techniques on

Bye If you would like to refer to this comment somewhere else in this project, copy and paste the following link: Silvia - 2012-02-16 that error is due to an error All Rights Reserved. It restricts you to a single instance of that form (the one referenced with the global variable form1 created by the IDE). About Us Connect with DevExpress BlogsUpcomingEventsTrainingWebinars Learn More about DevExpress About Us News User Comments Case Studies Our Awards Reviews & Publications MVP Program Contact Us Support Center FAQ Training Events

Am I interrupting my husband's parenting? A Dataset is designed to be used with different type and storage systems. a = ""; b = ""; // When comparing two empty strings (""), both the shared/static and // the instance Equals methods evaluate to true. Editor: Don't save BOM header for .gradle files Editor: Slight refactoring and improvements to number syntax highlighting Editor: ”e” or "p" would badly highlight as number when preceded by a number

The System.Data.SqlTypes namespace provides null semantics by implementing the INullable interface.