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Gotcha: don’t use ‘{$…}’ syntax or ‘$…’ syntax in XSL-XPath’s concat
15 Αυγούστου 14 11:57 μμ | Μπιρμπίλης Γεώργιος | 1 σχόλια   

<xsl:template match="cxml:Item" mode="col">   <xsl:variable name="FILENAME" select="…someXPathQuery…"/>   <xsl:variable name="IMAGE" select="concat(‘http://gallery.clipflair.net/activity/image/’, $FILENAME, ‘.png’)"/> … I got confused a bit today after a long day of fiddling with XSL and ClipFlair Activity Gallery’s CXML (Collection XML) data (as used in PivotViewer control), and didn’t understand why I couldn’t use an XSL variable’s (FILENAME in the sample […]

Δημοσίευση στην κατηγορία: Transforms, Posts, Expression, ClipFlair, Gotcha, String, XPath, XSL, StringConcatenation, Variables

Gotcha: .NET Point and PointConverter inconsistency in string format used
22 Νοεμβρίου 13 01:47 μμ | Μπιρμπίλης Γεώργιος | 0 σχόλια   

I have submitted the following issue to Microsoft Connect (product feedback center): http://connect.microsoft.com/VisualStudio/feedback/details/809084/point-class-issue-with-two-way-databinding Point class issue with two-way databinding   In Silverlight, when using databinding code like the following: <StackPanel Orientation="Vertical" Name="propPosition">     <sdk:Label Style="{StaticResource PropertyLabelStyle}" Content="Position:" Target="{Binding ElementName=edPosition}" />      <TextBox Name="edPosition" Text="{Binding Position, Mode=TwoWay, ValidatesOnExceptions=True, NotifyOnValidationError=true}" /> </StackPanel> and binding (via DataContext) to […]

Δημοσίευση στην κατηγορία: .NET, UI, Posts, Bugs, ClipFlair, Gotcha, Binding, String, Conversion, PointConverter, Point

HowTo: Remove invalid filename characters in .NET
12 Ιουλίου 13 11:28 μμ | Μπιρμπίλης Γεώργιος | 0 σχόλια   

In ClipFlair Studio I use DotNetZip (Ionic.Zip) library for storing components (like the activity and its nested child components) to ZIP archives (.clipflair or .clipflair.zip files). Inside the ZIP archive its child components have their own .clipflair.zip file and so on (so that you could even nest activities at any depth) which construct their filename […]

Δημοσίευση στην κατηγορία: Security, .NET, Filters, Posts, Filesystem, ClipFlair, RegEx, String, Array, Characters, Invalid, Filename, Conversion

.NET String extension methods to check for array of prefixes or suffixes
05 Απριλίου 13 10:51 μμ | Μπιρμπίλης Γεώργιος | 0 σχόλια   

Seems StartsWith and EndsWith methods of String class in .NET are missing a version that accepts multiple (as an array) prefixes or suffixes respectively when testing the string. To achieve this I just added the following extension methods to StringExtensions class (of Utils.Extensions namespace) under Utils.Silverlight project at the ClipFlair source code. public static bool [...]

Δημοσίευση στην κατηγορία: .NET, Posts, Class, ClipFlair, Extensions, Prefix, String, Suffix, CurrentCulture, StringComparison, Methods, StartsWith, Array, EndsWith

.NET String class extensions to replace prefix or suffix
26 Μαρτίου 13 05:47 μμ | Μπιρμπίλης Γεώργιος | 0 σχόλια   

Just added the following extension methods to StringExtensions class (of Utils.Extensions namespace) under Utils.Silverlight project at the ClipFlair source code. public static string ReplacePrefix( this string s, string fromPrefix, string toPrefix, StringComparison comparisonType) { return (s.StartsWith(fromPrefix, comparisonType)) ? toPrefix + s.Substring(fromPrefix.Length) : s; } public static string ReplacePrefix( this string s, string[] fromPrefix, string toPrefix, [...]

Δημοσίευση στην κατηγορία: .NET, Posts, Class, ClipFlair, Extensions, Prefix, Methos, String, Replace, Suffix