maxlength

Maximum internet email Message-ID length

≯℡__Kan透↙ 提交于 2019-11-30 11:32:24
I'm looking for the maximum character length allowed for an internet Message-ID field for validation purposes within an application. I've reviewed sources such as RFC-2822 and Wikipedia "Message-ID" as well as this SO question , among other various places. The closest answer I can find is "998 characters" because that is the maximum length that the specification allows for each line in an internet message (from RFC-2822), and the Message-ID field cannot be multiple lines. Is 998 characters the definitive answer? Is there no such limit? If there's one thing I've learned about email, it must be

XAML : Binding textbox maxlength to Class constant

喜欢而已 提交于 2019-11-30 11:06:55
I am attempting to bind a WPF textbox's Maxlength property to a known constant deep within a class. I am using c#. The class has a structure not too dissimilar to the following: namespace Blah { public partial class One { public partial class Two { public string MyBindingValue { get; set; } public static class MetaData { public static class Sizes { public const int Length1 = 10; public const int Length2 = 20; } } } } } Yes it is deeply nested, but unfortunately in this instance I can't move things round very much without huge rewrites required. I was hoping I'd be able to bind the textbox

Text Wrapping in C on Thermo Mini Printer

会有一股神秘感。 提交于 2019-11-30 09:56:59
问题 I would really like some help with one of my projects. I am a graphic design student and have little to no programming experience. I have created a program for a thermo mini printer that identifies tweets made on twitter based on specific hashtags used and prints them automatically. However, it's based on a line length of 32 chars and will split words in half instead of moving the entire word to another line. A friend of mine suggested word wrapping but I can't find anything online to help me

Is there a longer than int Java List?

女生的网名这么多〃 提交于 2019-11-30 09:08:57
问题 I can't seem to find a Java List that's max length is long 's max value. Does such a List exist? If so, where? 回答1: As @afsantos says, the ArrayList class is inherently limited to Integer.MAX_VALUE entries because of the limitations of Java arrays. LinkedList doesn't have this limitation, but it is (nonetheless) expensive: Each entry incurs an memory overhead of 2 references plus the size of an object header ... compared to just one reference for an array-based representation. Indexing is an

How reliable is the MaxLength property of the TextBox-Control?

柔情痞子 提交于 2019-11-30 05:32:55
问题 The TextBox control offers a MaxLength property, which allows the insertable text into that TextBox be clientside limited to the specified amount of chars. My questions : Is this property only client-side and therefore browser-pedendent? Can I rely on the fact, that the Text property contains no text longer than MaxLength is set (only for the DisplayModes named in the MSDN article) or do I manually have to perform a TextBox.Text.SubString(0, DesiredMaxLength) ? How does all this behave with

Text Wrapping in C on Thermo Mini Printer

梦想与她 提交于 2019-11-29 18:13:44
I would really like some help with one of my projects. I am a graphic design student and have little to no programming experience. I have created a program for a thermo mini printer that identifies tweets made on twitter based on specific hashtags used and prints them automatically. However, it's based on a line length of 32 chars and will split words in half instead of moving the entire word to another line. A friend of mine suggested word wrapping but I can't find anything online to help me and most code I've found tends to be for c++ or c#. The code so far can be found below: // Build an

Maximum internet email Message-ID length

久未见 提交于 2019-11-29 17:16:25
问题 I'm looking for the maximum character length allowed for an internet Message-ID field for validation purposes within an application. I've reviewed sources such as RFC-2822 and Wikipedia "Message-ID" as well as this SO question, among other various places. The closest answer I can find is "998 characters" because that is the maximum length that the specification allows for each line in an internet message (from RFC-2822), and the Message-ID field cannot be multiple lines. Is 998 characters the

WPF TextBox MaxLength — Is there any way to bind this to the Data Validation Max Length on the bound field?

拥有回忆 提交于 2019-11-28 21:39:23
ViewModel: public class MyViewModel { [Required, StringLength(50)] public String SomeProperty { ... } } XAML: <TextBox Text="{Binding SomeProperty}" MaxLength="50" /> Is there any way to avoid setting the MaxLength of the TextBox to match up my ViewModel (which could change since it is in a different assembly) and have it automatically set the max length based on the StringLength requirement? I used a Behavior to connect the TextBox to its bound property's validation attribute (if any). The behavior looks like this: /// <summary> /// Set the maximum length of a TextBox based on any

Limit on file name length in bash

纵然是瞬间 提交于 2019-11-28 18:05:19
The following questions are meant for bash and linux only: Is there a limit on the number of characters in the absolute path name of a file? Is there a limit on the number of characters for the filename (without extension) only? If so, what might these limits be? How can I access them in case they are system specific? e-satis It depends very much on the filesystem. For the ext FS (currently the most used on Linux): max filename length: 255 bytes max path length: none The extension is not something the FS is aware of, it 255 bytes, extension included (you can have file names without any

django model CharField: max_length does not work?

拥有回忆 提交于 2019-11-28 12:02:11
I'm trying to make a field with limited choices: Action_Types=( ('0','foo'), ('1','bar'), ) class Foo(models.Model): myAction=models.CharField(max_length=1,choices=Action_Types) def __unicode__(self): return '%d %s'%(self.pk,self.myAction) However, when I was trying to insert content violating the rules, it succeeded without any error or warning messages (with "manage.py shell"). It seems any text of any length can be put into this field. I'm using SQLite3 as the backend. Is it supposed to be like that? Or if I missed something? SQLite does not enforce the length of a VARCHAR. From the SQLite