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Associating enums with strings in C#
...get { return new LogCategory("Warning"); } }
public static LogCategory Error { get { return new LogCategory("Error"); } }
}
Pass in type-safe string values as a parameter:
public static void Write(string message, LogCategory logCategory)
{
var log = new LogEntry { Message = message };
...
Does PowerShell support constants?
...There is a integer constant declaration, so the second line return
error.
.EXAMPLE
PS C:\> const str = "this is a constant string"
You also can use word 'const' for constant declaration. There is a
string constant named '$str' in this example.
.LINK
...
LEFT OUTER JOIN in LINQ
...
I'm trying the same thing but getting an error on the join operator, which says "The type of one of the expressions in the join clause is incorrect."
– Badhon Jain
Jan 8 '14 at 8:52
...
Perform commands over ssh with Python
...
For unknown host error, do: ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) before
– Nemo
Jan 22 '19 at 8:16
...
Google Sheets API Setup · App Inventor 2 中文网
...ging Tips
Unable to resolve host "oauth2.googleapis.com"
If you get this error message, double check your device’s connection to the
internet. This is a sign that the Android networking subsystem can’t resolve
the hostname, so it’s not able to talk to DNS.
Attempt to invoke virtual method ...
Link vs compile vs controller
...nt or its parent. The name can be prefixed with:
? – Will not raise any error if a mentioned directive does not exist.
^ – Will look for the directive on parent elements, if not available on the same element.
Use square bracket [‘directive1′, ‘directive2′, ‘directive3′] to require...
No Multiline Lambda in Python: Why not?
... returning (y, [1,2,3]) (thus map only gets one parameter, resulting in an error)? Or does it return y? Or is it a syntax error, because the comma on the new line is misplaced? How would Python know what you want?
Within the parens, indentation doesn't matter to python, so you can't unambiguously w...
EF Code First “Invalid column name 'Discriminator'” but no inheritance
...ed in the DbContext like below, the "'Invalid column name 'Discriminator'" error occurs when any type based on Folder base type is accessed:
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
modelBuilder.Entity<Folder>().ToTable("All_Folders");
modelBuilder.Entity<...
Skip rows during csv import pandas
...hanged the file extension to .csv, the file won't import and will give the error above. To check to see if this is your problem open the file in excel and it will likely say:
"The file format and extension of 'Filename.csv' don't match. The file could be corrupted or unsafe. Unless you trust its...