int.TryParse failing with Console.ReadLine() in C#

If I try the following code in a simple console application: string input = Console.ReadLine(); bool isString = int.TryParse(input, out myid); I receive an error saying "the best overloaded method match for 'int.TryParse(string out int)' has some invalid arguments. I cannot work out why. Can anyone shed any light on this please? 在将它传递给int.TryParse之前,需要将myid声明为int in

int.TryParse失败,并在C#中使用Console.ReadLine()

如果我在简单的控制台应用程序中尝试以下代码: string input = Console.ReadLine(); bool isString = int.TryParse(input, out myid); 我收到一个错误,指出“int.TryParse(string out int)'的最佳重载方法匹配'有一些无效的参数。我无法弄清楚为什么。请问有谁能解释这一点? 在将它传递给int.TryParse之前,需要将myid声明为int int myid; string input = Console.ReadLine(); bool isString = int.TryParse(input

TryParse Invalid Arguments

I am trying to run a NUnit test searching for numbers within a string. I'm using TryParse but it gave me a this error: Error1: The best overloaded method match for 'int.TryParse(string, out int)' has some invalid arguments. Could you guys tell me what I'm doing wrong? [Test] public void ThenSearchForBrittanyShouldFindOneUser() { var searchresult = LuceneFullTextSearch.Sugg

TryParse无效参数

我正在尝试运行一个NUnit测试来搜索字符串中的数字。 我使用TryParse,但它给了我一个这样的错误:Error1:'int.TryParse(string,out int)'的最佳重载方法匹配有一些无效参数。 你们能告诉我我做错了什么吗? [Test] public void ThenSearchForBrittanyShouldFindOneUser() { var searchresult = LuceneFullTextSearch.SuggestSimilar("brit123", 1).ToArray(); int num = 0; foreach (var result i

Entry is throwing errors

This question already has an answer here: Error message: Cannot convert type 'string' to 'string[]' 4 answers The other answers are correct (the compiler does not let you pass a string as an argument to a method expecting a string array), but an alternative approach is to change the method signature of your Main method like so: static void Main(params string[] arg) The param

输入发生错误

这个问题在这里已经有了答案: 错误消息:无法将类型'字符串'转换为'string []'4个答案 其他答案是正确的(编译器不会让你传递一个字符串作为期望字符串数组的方法的参数),但另一种方法是更改Main方法的方法签名,如下所示: static void Main(params string[] arg) params关键字允许参数分别传递而不是数组。 因此,以下调用将是等同的: Main("month"); Main(new string[] {"month"}); 顺便说一句

converting byte array to string not working in c#

I have a column AttachmentFile with varbinary data in the Database. In c#, I'm storing it in a byte[] array. I need to display this content as a string to the user. I've tried a couple of different ways to convert this byte array to a string, but nothing seems to work. Here is what I'm trying to do - while (rdr.Read()) { string name = rdr["AttachmentFileName"].ToString();

将字节数组转换为不在c#中工作的字符串

我有一个与数据库中的varbinary数据列AttachmentFile。 在C#中,我将它存储在一个byte []数组中。 我需要将此内容作为字符串显示给用户。 我尝试了几种不同的方法将这个字节数组转换为一个字符串,但似乎没有任何工作。 这就是我想要做的 - while (rdr.Read()) { string name = rdr["AttachmentFileName"].ToString(); string mime = rdr["AttachmentMIMEType"].ToString(); byte[] content = (byte[])rdr["A

Function convert Hex String to BitArray C#

I created the following function which will do as requested (convert HEX string to BitArray). I am not sure about the efficiency of the function, but my main problem now is that the Convert.ToInt64 function is endian specific. When this is ported over to alternate chipsets we will get different results (or exceptions). So can anyone think of an alternate way to do this conversion??? public Bi

函数将十六进制字符串转换为BitArray C#

我创建了以下函数,它将按照要求进行操作(将HEX字符串转换为BitArray)。 我不确定函数的效率,但现在我的主要问题是Convert.ToInt64函数是特定于endian的。 当它被移植到替代芯片组时,我们会得到不同的结果(或例外)。 那么任何人都可以想到一种替代方法来做这种转换? public BitArray convertHexToBitArray(string hexData) { string binary_values = ""; BitArray binary_array; if

How to convert numbers between hexadecimal and decimal in C#?

你如何转换C#中的十六进制数字和十进制数字? To convert from decimal to hex do... string hexValue = decValue.ToString("X"); To convert from hex to decimal do either... int decValue = int.Parse(hexValue, System.Globalization.NumberStyles.HexNumber); or int decValue = Convert.ToInt32(hexValue, 16); Hex -> decimal: Convert.ToInt64(hexValue, 16); Decimal -> Hex string.format("{0:x}", de

如何在C#中的十六进制和十进制之间转换数字?

你如何转换C#中的十六进制数字和十进制数字? 从十进制转换为十六进制... string hexValue = decValue.ToString("X"); 从十六进制转换为十进制做... int decValue = int.Parse(hexValue, System.Globalization.NumberStyles.HexNumber); 要么 int decValue = Convert.ToInt32(hexValue, 16); 十六进制 - >十进制: Convert.ToInt64(hexValue, 16); 十进制 - >十六进制 string.format("{0:x}", decValue); 看起

'Contains()' workaround using Linq to Entities?

I'm trying to create a query which uses a list of ids in the where clause, using the Silverlight ADO.Net Data Services client api (and therefore Linq To Entities). Does anyone know of a workaround to Contains not being supported? I want to do something like this: List<long?> txnIds = new List<long?>(); // Fill list var q = from t in svc.OpenTransaction where txnIds.C

'包含()'解决方法使用Linq到实体?

我试图创建一个使用Silverlight ADO.Net数据服务客户端API(因此Linq To Entities)在where子句中使用id列表的查询。 有谁知道解决方法包含不被支持? 我想要做这样的事情: List<long?> txnIds = new List<long?>(); // Fill list var q = from t in svc.OpenTransaction where txnIds.Contains(t.OpenTransactionId) select t; 试过这个: var q = from t in svc.OpenTransaction where tx

How to free recursive struct (trie)

FINAL EDIT My function that frees the memory works properly, and as milevyo has suggested, the problem lies in node creation, which I had fixed. I now have a separate problem where the program segfaults when run normally, but it cannot be reproduced in gdb or valgrind . However, that is a separate question altogether. I have since found out that this segfault happened because I did not chec

如何释放递归结构(trie)

最终编辑 我释放内存的功能正常工作,正如Milevyo所说,问题在于我修复的节点创建问题。 我现在有一个单独的问题,程序在正常运行时发生段错误,但不能在gdb或valgrind重现。 但是,这完全是一个单独的问题。 后来我发现这段错误发生了,因为我没有正确检查EOF字符。 根据Cliff B在这个问题中的回答,EOF的检查只发生在文件中的最后一个字符之后。 因此,在加载字典文件的函数中,我已经将文件的最后一个字符赋给了某个i

Why Doesn't Visual Studio's Designer Match What I See At Runtime?

I'm new to WPF and using Visual Studio (2015)'s Design view to create a sample application. At design time, everything looks pretty much like what I want: But when I run the application, it looks quite different. I found a similar, but not quite the same question (Run time View of WPF Window doesn't match the Design View of Expression Blend) with layouts created in Blend not matc

为什么Visual Studio的设计器与我在运行时看到的相符?

我是WPF的新手,并使用Visual Studio(2015)的设计视图来创建示例应用程序。 在设计时,一切看起来都非常像我想要的: 但是当我运行该应用程序时,它看起来完全不同。 我发现一个类似但不完全相同的问题(运行时WPF窗口视图与Expression Blend的设计视图不匹配)与Blend中创建的布局在运行时不匹配。 和这个问题(设计模式和运行时不同),但涉及到动态资源。 我没有做任何聪明的事情,只是一个网格和控件。 我没有用

memcpy() vs memmove()

I am trying to understand the difference between memcpy() and memmove() , and I have read the text that memcpy() doesn't take care of the overlapping source and destination whereas memmove() does. However, when I execute these two functions on overlapping memory blocks, they both give the same result. For instance, take the following MSDN example on the memmove() help page:- Is there a b

memcpy()vs memmove()

我试图理解memcpy()和memmove()之间的区别,并且我已经阅读了memcpy()没有考虑重叠源和目标的文本,而memmove()却没有。 但是,当我在重叠的内存块上执行这两个函数时,它们都会给出相同的结果。 例如,在memmove()帮助页面上采用以下MSDN示例: - 有没有更好的例子来理解memcpy的缺点以及memmove如何解决它? // crt_memcpy.c // Illustrate overlapping copy: memmove always handles it correctly; memcpy may handle //