converters

问题 First; the question is rhetorical, I have an answer! I have gotten so much help from looking here that I wanted to give this neat trick back. Imagine that you have a value that you want to bind to, but it is somehow or somewhat wrong. I had a situation where I wanted to bind to a value, but when the value was 1, I needed 0, and vice-versa. There was a time when I wanted to bind the width of an element to the width of a parent - 68px. 回答1: Enter the FirstDegreeFunctionConverter : using System;

问题 i := 123 s := string(i) s is 'E', but what I want is "123" Please tell me how can I get "123". And in Java, I can do in this way: String s = "ab" + "c" // s is "abc" how can I concat two strings in Go? 回答1: Use the strconv package's Itoa function. For example: package main import ( "strconv" "fmt" ) func main() { t := strconv.Itoa(123) fmt.Println(t) } You can concat strings simply by + 'ing them, or by using the Join function of the strings package. 回答2: fmt.Sprintf("%v",value); If you know

问题 I want to convert all columns (59 columns) from my excel file to a dataframe, specifying the types. Some columns are a string, others dates, other int and more. I know I can use a converter in a read_excel method. but I have a lot of columns and I don't want write converter={'column1': type1, 'column2': type2, ..., 'column59': type59} my code is: import numpy as np import pandas as pd import recordlinkage import xrld fileName = 'C:/Users/Tito/Desktop/banco ZIKA4.xlsx' strcols = [0, 5, 31, 36,

问题 I have a program that converts pdfs into html and I needed to complement this program so after converting It would search for the tags PA/ and the character in front of it and save these tags and characters to a CSV file, I'm trying to do it but I can't. Here's the code so far: import shlex import subprocess import os import platform from bs4 import BeautifulSoup import re import csv import pickle def rename_files(): file_list = os.listdir(r"C:\\PROJECT\\pdfs") print(file_list) saved_path =

问题 I'm trying to Learn WPF from Wpf Tuturial I'm having problem with converts in WPF and VB.Net. I'm Using VS 2012 Here is my XML Code <Window x:Class="Binding_Sample_Converter" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-Namespace:WPF_Tutorial.WPFTutorials.Converter" Title="Binding_Sample_Converter" Height="300" Width="300"> <Window.Resources> <!-- Error 1 The name "YesNo" does not exist in the

问题 I have been trying to create a simple javascript program where the user types in words/sentences, and the program shows the numbers you would enter to text it in a flip phone. For instance, if I entered "add" it would output "122". How would I do this? I have tried a lot of different things, and nothing works. It seems like it should be a simple program. Can you either help me do this, or link me to a similar program? Thanks. 回答1: function str2num(mystr) { mystr = mystr.toUpperCase(); var

问题 A function that takes a list of binary numbers and returns their decimal sum. Call: (addBinary '(1101 111 10 101)) (define (addBinary binaryList)) returns 27 来源： https://stackoverflow.com/questions/59114001/scheme-binary-list-to-decimal-sum

问题 I am writing converter for json like this: { "datatable": { "data": [ [ "A85002072C", "1994-11-15", 678.9 ] ], "columns": [ { "name": "series_id", "type": "String" }, { "name": "date", "type": "Date" }, { "name": "value", "type": "double" } ] }, "meta": { "next_cursor_id": null } } At the moment my converter looks like this: public class AbsToModelConverter : JsonConverter { public override bool CanConvert(Type objectType) { return objectType.Name.Equals("AbsFseModel"); } public override

问题 Server: Payara 5.183. When the converter is used, a NullPointerException is raised because the injected EJB is null (System.out.println prints "null"). It works (injection not null) if I use a workaround used before JSF 2.3: replacement of @FacesConverter by @Name. Converter: @FacesConverter(value = "compteConverter", managed = true) public class CompteConverter implements Converter<CompteBancaire> { @EJB private GestionnaireCompte gestionnaireCompte; @Override public CompteBancaire

问题 I'm trying to generate an auto ID. My problem is that my ID-generating class uses a String (varchar in db) but the entity being created uses an Integer (numeric in db). I tried using a converter on the ID-generating class. Although sParamValue is a varchar in our db, I thought I could convert it to Integer, ie: IDGenerator.class : @Entity @Table(name = "idGenerator") @XmlRootElement @NamedQueries( { //some queries here }) @Data public class IDGenerator implements Serializable { @Basic