string-formatting

问题 I see another thread somewhat like my question at: ASP.NET GridView Column - formatting telephone number but i do not know if it answers my question as he is using code-behind to make the colum. All I did was insert the GridView control in visual studio. BTW, the data is being populated in the Grid, I am just trying to get the formatting set now. I am using Microsoft Visual Studio Professional 2010. (Also SQL Management Studio for my database but this information may not be needed, just

问题 I'm new to WPF and MVVM (started this week experimenting with it) and trying to bind image resources at runtime. The items I'm trying to display contain an enumerate property that indicates the type or state of the item: public class TraceEvent { /// <summary> /// Gets or sets the type of the event. /// </summary> /// <value>The type of the event.</value> public TraceEventType EventType { get; set; } } As far as I known the Source attribute of Image has a value converter that takes strings

问题 I'm looking for something where: string pearString ("pear"); string bananaString ("banana"); cout << ???? 5 ??? pearString ??????? << "[end]" << endl; cout << ???? 5 ??? bananaString ??????? << "[end]" << endl; Will (for some sequence of code characters ???) output: pear[end] banan[end] But I'd like this to work without having to do a substring operation that would copy the string. Unless I'm missing something, there is no formatting specifier for this. (The setw specifier pads shorter

问题 I have a pandas DataFrame with mixed values in it. I am working in Ipython notebook while developing it. When displaying the dataframe I would like it to display to facilitate easier reading. At the moment I am using python string formatting to display all floats to 4 decimals and to add thousand separators. pd.options.display.float_format = '{:,.4f}'.format Ideally I would like to E.g. Display Values over 10000 without decimals, fractions with 4 significant digits etc. Is there a way that I

问题 I have a pandas DataFrame with mixed values in it. I am working in Ipython notebook while developing it. When displaying the dataframe I would like it to display to facilitate easier reading. At the moment I am using python string formatting to display all floats to 4 decimals and to add thousand separators. pd.options.display.float_format = '{:,.4f}'.format Ideally I would like to E.g. Display Values over 10000 without decimals, fractions with 4 significant digits etc. Is there a way that I

问题 I like to format all numbers like in math. is there a predefined function or is that just possible with substring and replace? edit: my culture is de-ch Best regards 回答1: Try this int input = Convert.ToInt32("1700"); string result = String.Format("{0:##,##}", input); Or this Console.WriteLine(1700.ToString("##,##", new NumberFormatInfo() { NumberGroupSeparator = "'" })); 回答2: var numformat = new NumberFormatInfo { NumberGroupSeparator = "'", NumberGroupSizes = new int[] { 3 },

问题 I need to format double values into coordinate strings that have a very specific format, "DDMMSS.SSX" where: "DD" is the full degrees "MM" is the full minutes "SS.SS" is the seconds with fraction "X" is either "N" or "S" depending on hemisphere The fields need to be padded with zeroes. Spaces cannot be accepted. Examples for the formatting is as follows: 47.2535 ==> "471512.45N" -0.123345 ==> "000724.04S" I have managed to create the following program that does the job. However I have some

问题 I need to format double values into coordinate strings that have a very specific format, "DDMMSS.SSX" where: "DD" is the full degrees "MM" is the full minutes "SS.SS" is the seconds with fraction "X" is either "N" or "S" depending on hemisphere The fields need to be padded with zeroes. Spaces cannot be accepted. Examples for the formatting is as follows: 47.2535 ==> "471512.45N" -0.123345 ==> "000724.04S" I have managed to create the following program that does the job. However I have some

问题 I'm trying to format dates which I retrieve from my database table, I wanted to format from "2015 02 11 12 00" to "Feb 2" but it gives an error when I format it. Is there any other ways formatting those dates? Following the codes: protected String doInBackground(String... args) { // Building Parameters List<NameValuePair> params = new ArrayList<NameValuePair>(); // getting JSON string from URL JSONObject json = jParser.makeHttpRequest(url_all_events, "GET", params); // Check your log cat for

问题 So I know Python strings are immutable, but I have a string: c['date'] = "20110104" Which I would like to convert to c['date'] = "2011-01-04" My code: c['date'] = c['date'][0:4] + "-" + c['date'][4:6] + "-" + c['date'][6:] Seems a bit convoluted, no? Would it be best to save it as a separate variable and then do the same? Or would there basically be no difference? 回答1: You could use .join() to clean it up a little bit: d = c['date'] '-'.join([d[:4], d[4:6], d[6:]]) 回答2: You are better off