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When I have a <div> with width: 100%, it is not really 100%: <div id="div">testtesttesttesttest</div> . ... background anymore. How to fix this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - input name and id changes when set runat=server

In my form I need to insert different inputs of type "text". The inputs must be html controls with name ... runat=server I appreciate any help See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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optimization - R solve:system is exactly singular

I am solving simple optimization problem. The data set has 26 columns and over 3000 rows. The source code looks ... Thank you very much, Alex See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How do I bind a ComboBox so the displaymember is concat of 2 fields of source datatable?

I'd like to bind a ComboBox to a DataTable (I cannot alter its original schema) cbo.DataSource = tbldata; ... cbo.DataTextField += "Surname"; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jquery - How to create thead and tbody in ASP.NET Table ?

How to create thead and tbody in ASP.NET Table? I need those tags because of jquery and asp.net gives me only tr, th and td. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to alter a .NET DateTimePicker control to allow enter null values?

What's the easiest and most robust way of altering the .NET DateTimePicker control, to allow users to enter null values? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Finding the nth occurrence of a character in a string in javascript

I am working on a javascript code to find the nth occurrence of a character in a string. Using the ... same in other frameworks /languages? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How can I calculate the difference between two times that are in 24 hour format?

In JavaScript, how can I calculate the difference between two times that are in 24 hour format? Example: Get how many ... </select> <p></p> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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integer - How would you set a variable to the largest number possible in C?

How would you set a variable to equal infinity (or any guaranteed largest number value) in C? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Django: ManyToMany filter matching on ALL items in a list

I have such a Book model: class Book(models.Model): authors = models.ManyToManyField(Author, ...) ... In ... will be helpful as well. Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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What is the jdbc driver "org.gjt.mm.mysql.Driver" for?

After taking over a coworker's project I noticed he was using "org.gjt.mm.mysql.Driver" as the jdbc driver for ... driver". http://gjt.org/ See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Java: why can't iterate over an iterator?

I read Why is Java's Iterator not an Iterable? and Why aren't Enumerations Iterable?, but I still don't understand why ... bar(x); baz(x); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - DT[!(x == .)] and DT[x != .] treat NA in x inconsistently

This is something that I thought I should ask following this question. I'd like to confirm if this is a ... answering this question at all). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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css - Double curved shape

I am currently attempting to generate a 'wavy ghostly bottom' shape. This shape contains two double curves: Although ... class="bottom"></div> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - sprintf for unsigned _int64

I am having following code. output of second %d in sprintf is always shown as zero. I think i am specifying wrong ... XML file size = 0 bytes See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - Check if a file exists locally using JavaScript only

I want to check if a file exists locally, where the HTML file is located. It has to be JavaScript. ... who click "show package contents". See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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nested - Solr documents with child elements?

Is it somehow possible to create a solr document that contains sub-elements? For example, how would I represent ... way to solve this problem? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to Pretty Print a CSV file in Python

How can I pretty print a CSV file using Python, not any external tool? For example I have this CSV file: title1|title2| ... ------------- + See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Print exact value of PyTorch tensor (floating point precision)

I'm trying to print torch.FloatTensor like: a = torch.FloatTensor(3,3) print(a) This way I can get a ... print more precise values of tensors? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - Get values from first and last row per group

I'm new to Postgres, coming from MySQL and hoping that one of y'all would be able to help me out. I ... wondering what I'm doing wrong here? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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639 views

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.net - How to use inline modifiers in C# regex?

How do I use the inline modifiers instead of RegexOptions.Option? For example: Regex MyRegex = new Regex(@"[ ... com/en-us/library/yd1hzczs.aspx See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - My C# program is detected as a virus?

I have created a C# program and I recently noticed that when I merge my referenced .dlls into one executable .exe ... i'm using File.Exists ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - matplotlib plot window won't appear

I'm using Python 2.7.3 in 64-bit. I installed pandas as well as matplotlib 1.1.1, both for 64-bit. ... I might be missing DLLs. Any suggestions? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Check if record in a table exist in a database through ExecuteNonQuery

in my program i need to check if a record in the database already exists in the table using the if statement. using ... to do it so. thank you. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - Why do I need to use a popular framework?

I've been a PHP developer for many years now, with many tools under my belt; tools that I've either ... to improve my own skills/tools? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to access the 64-bit registry from a 32-bit Powershell instance?

If you launch a 32-bit instance of Powershell (%SystemRoot%syswow64WindowsPowerShellv1.0powershell.exe), then the ... possibilities at all. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How serious is the new/delete operator mismatch error?

I have discovered the classic new/delete mismatch error in our codebase as follows: char *foo = new char[10]; ... or Corrupt memory is some way? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Why shouldn't Flask be deployed with the built in server?

Why is it recommended to deploy a Flask app using Apache or Nginx? It has a server built in, can't it ... the correct ports in the firewall? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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