.net

问题 We have an application that Generates a hash code on a string Saves that hash code into a DB along with associated data Later, it queries the DB using the string hash code for retrieving the data This is obviously a bug because the value returned from string.GetHashCode() varies from .NET versions and architectures (32/64 bit). To complicate matters, we're too close to a release to refactor our application to stop serializing hash codes and just query on the strings instead. What we'd like to

问题 We have an application that Generates a hash code on a string Saves that hash code into a DB along with associated data Later, it queries the DB using the string hash code for retrieving the data This is obviously a bug because the value returned from string.GetHashCode() varies from .NET versions and architectures (32/64 bit). To complicate matters, we're too close to a release to refactor our application to stop serializing hash codes and just query on the strings instead. What we'd like to

问题 We have an application that Generates a hash code on a string Saves that hash code into a DB along with associated data Later, it queries the DB using the string hash code for retrieving the data This is obviously a bug because the value returned from string.GetHashCode() varies from .NET versions and architectures (32/64 bit). To complicate matters, we're too close to a release to refactor our application to stop serializing hash codes and just query on the strings instead. What we'd like to

问题 To allow for different formatting options on a method that displays a news story, I've created an enumeration that can be passed in to specify how it gets displayed. [Flags] private enum NewsStyle { Thumbnail = 0, Date = 1, Text = 2, Link = 4, All = 8 } string FormatNews( DataRow news, NewsStyle style ) { StringBuilder HTML = new StringBuilder(); // Should the link be shown if ( ((newsStyle & NewsStyle.All) == NewsStyle.All || (newsStyle & NewsStyle.Link) == NewsStyle.Link)) { HTML

问题 In Windows Forms when a UserControl or Form first time becomes visible the Load event is fired. http://msdn.microsoft.com/en-us/library/system.windows.forms.usercontrol.load.aspx Is there any such event for controls like Checkbox, TextBox, Label ? 回答1: No. You could use the HandleCreated event, it is fired when the native window for the control is created. The first event you can rely on to run after the class constructor ran. It is triggered when the parent adds the control to its Controls

问题 In Windows Forms when a UserControl or Form first time becomes visible the Load event is fired. http://msdn.microsoft.com/en-us/library/system.windows.forms.usercontrol.load.aspx Is there any such event for controls like Checkbox, TextBox, Label ? 回答1: No. You could use the HandleCreated event, it is fired when the native window for the control is created. The first event you can rely on to run after the class constructor ran. It is triggered when the parent adds the control to its Controls

问题 I trying to find a simple way to solve this. I have a Initial Date, and a Final Date. And I want to generate a List<Datetime> with each of the dates in a given period. Example : Initial Date is "2013/12/01" and Final Date is "2013/12/05". And I want to automatically populate a list with "2013/12/01" "2013/12/02" "2013/12/03" "2013/12/04" "2013/12/05" What would you suggest me? Thanks 回答1: var startDate = new DateTime(2013, 12, 1); var endDate = new DateTime(2013, 12, 5); var dates =

问题 I trying to find a simple way to solve this. I have a Initial Date, and a Final Date. And I want to generate a List<Datetime> with each of the dates in a given period. Example : Initial Date is "2013/12/01" and Final Date is "2013/12/05". And I want to automatically populate a list with "2013/12/01" "2013/12/02" "2013/12/03" "2013/12/04" "2013/12/05" What would you suggest me? Thanks 回答1: var startDate = new DateTime(2013, 12, 1); var endDate = new DateTime(2013, 12, 5); var dates =

问题 There's a bug in the code somewhere that I can't find, some variables simply don't work somehow. The warning I get: CS0649 Field 'Calculations.A' is never assigned to, and will always have its default value 0 ABC-Formule [path]\Calculations.cs CS0649 Field 'Calculations.B' is never assigned to, and will always have its default value 0 ABC-Formule [path]\Calculations.cs CS0649 Field 'Calculations.C' is never assigned to, and will always have its default value 0 ABC-Formule [path]\Calculations

问题 There's a bug in the code somewhere that I can't find, some variables simply don't work somehow. The warning I get: CS0649 Field 'Calculations.A' is never assigned to, and will always have its default value 0 ABC-Formule [path]\Calculations.cs CS0649 Field 'Calculations.B' is never assigned to, and will always have its default value 0 ABC-Formule [path]\Calculations.cs CS0649 Field 'Calculations.C' is never assigned to, and will always have its default value 0 ABC-Formule [path]\Calculations