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The relationship could not be changed because one or more of the foreign-key properties is non-nulla
I am getting this error when I GetById() on an entity and then set the collection of child entities to my new list which comes from the MVC view.
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How line ending conversions work with git core.autocrlf between different operating systems
... at least since v1.7.2 from what I am aware):
core.autocrlf = true
Text files checked-out from the repository that have only LF characters are normalized to CRLF in your working tree; files that contain CRLF in the repository will not be touched
Text files that have only LF characters in the repo...
Swift Bridging Header import issue
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Be careful to add the file to the folder that your error is complaining!
I've made the same mistake, if you create the file from Xcode, it will go to the folder: Project->Project->Header.h
And Xcode is looking for Project->Header.h
That...
Deleting a file in VBA
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1.) Check here. Basically do this:
Function FileExists(ByVal FileToTest As String) As Boolean
FileExists = (Dir(FileToTest) <> "")
End Function
I'll leave it to you to figure out the various error handling needed but these are among the error handling things...
SQL Add foreign key to existing column
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Error indicates that there is no UserID column in your Employees table. Try adding the column first and then re-run the statement.
ALTER TABLE Employees
ADD CONSTRAINT FK_ActiveDirectories_UserID FOREIGN KEY (UserID)
REFERENCES ActiveDirectories(id);
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Skip download if files exist in wget?
...oads that would download to
existing files.
Sample usage:
wget -nc http://example.com/pic.png
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Convert PEM to PPK file format
Is there a way to convert PEM files to PPK files? (you may guess that Amazon EC2 gives me a PEM file, and I need to use the PPK format for SSH connectivity).
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Getting a File's MD5 Checksum in Java
I am looking to use Java to get the MD5 checksum of a file. I was really surprised but I haven't been able to find anything that shows how to get the MD5 checksum of a file.
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Tools to search for strings inside files without indexing [closed]
...r
Visual Studio Code has excellent search and replace capabilities across files. It is extremely fast, supports regex and live preview before replacement.
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How to create a project from existing source in Eclipse and then find it?
I have created several .java files. All of them are located in one directory. I used a text editor to write these files. Now I want to switch to Eclipse. How can I do it? I have tried many ways. None of them works.
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