formatting

问题 I am exporting a report from MS Access(2003) to Excel (97-2003) output. One of the columns has a character string that is numeric for some rows e.g. "05-0880". When I open the output file in MS Excel the corresponding cell is set to the number -372424 . I assume this is caused by Excel being "clever" and deciding that "05-0808" represents a time value or date of some sort and converting the string to a corresponding numeric value. In my case the data represents product codes and this

问题 Is there a clean way to format a DateTime value as "Oct. 10, 2008 10:43am CST". I need it with the proper abbreviations and the "am" (or "pm") in lower case etc etc. I've done it myself but it's ugly so I'm looking for a different take on it. Thanks. 回答1: Since the "tt" format string specifier only outputs upper case, you'll have to modify that yourself. Also, DateTimes do not store the name of the timezone, only an offset. DateTime dt = DateTime.Now; string ampm = dt.ToString("tt").ToLower()

问题 I've been goin at it now for an 1.5hrs and I just can't figure out a way to make it the way I want. I'm kind of new with all things web, and it takes about as much time (maybe more?) trying to get things where I want and doing it in a way that is elegant. Anyways, I have two text boxes, with two labels above them and centered over the box. I want to simply put a button in between them and about centered with the textboxes' height. This is as close as I can make it get to what I want. I would

问题 If I have (in .NET/C#) for instance a variable of type long I can convert it to a formatted string like: long value = 12345; string formattedValue = value.ToString("D10"); // returns "0000012345" If I specify a format which isn't valid for that type I get an exception: long value = 12345; string formattedValue = value.ToString("Q10"); // throws a System.FormatException Question: Is there a way to check if a format specifier is valid (aside from trying to format and catching the exception)

问题 My app allows users define scheduling on objects, and they is stored as rrule. I need to list those objects and show something like "Daily, 4:30 pm". There is something available that "pretty formats" an rrule instance? 回答1: You simply have to provide a __str__ method and it will be called whenever something needs to render your object as a string. For example, consider the following class: class rrule: def __init__ (self): self.data = "" def schedule (self, str): self.data = str def __str__

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 6 years ago . Simple question - I've got a bucketload of cruddy html pages to clean up and I'm looking for a open source or freeware script/utility

问题 This is a simple one (I think). Is there a system built in function, or a function that someone has created that can be called from Delphi, that will display a number of bytes (e.g. a filesize), the way Windows displays in a file's Properties box? e.g. This is how Windows property box displays various sizes: 539 bytes (539 bytes) 35.1 KB (35,974 bytes) 317 MB (332,531,365 bytes) 2.07 GB (2,224,617,077 bytes) The display is smart about using bytes, KB, MB or GB, and shows only 3 significant

问题 This is a simple one (I think). Is there a system built in function, or a function that someone has created that can be called from Delphi, that will display a number of bytes (e.g. a filesize), the way Windows displays in a file's Properties box? e.g. This is how Windows property box displays various sizes: 539 bytes (539 bytes) 35.1 KB (35,974 bytes) 317 MB (332,531,365 bytes) 2.07 GB (2,224,617,077 bytes) The display is smart about using bytes, KB, MB or GB, and shows only 3 significant

问题 This question already has answers here : Setting a DBGrid column format in Delphi (3 answers) Closed 4 years ago . I would like to format specific cells to force two decimal places. The data is coming from an ElevateDB stored procedure and hooked into a TDataSource. EDIT: SQL Programming Note: I wasn't sure if this was just an ElevateDB issue or not. Before knowing about the Fields Editor , I attempted to format the data at the SQL level by using a CAST (NumericField as varchar(10)) statement

问题 How can I format the Null Dates in my Oracle SQL to 00/00/0000. I am using NVL function but it doesn't recognize the 00/00/0000 as the date format. Is there any Date Formatting available in Oracle SQL which formats null date to 00/00/0000 回答1: Do the to_char first and wrap it in the NVL. For example, select nvl(to_char(null, 'DD-MM-YYYY'), '00-00-0000') from dual 回答2: Use this function to assign default values of null values of date: SELECT id, NVL(start_date, to_date('20020101','YYYYMMDD'))