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schema builder laravel migrations unique on two columns
...
The second param is to manually set the name of the unique index. Use an array as the first param to create a unique key across multiple columns.
$table->unique(array('mytext', 'user_id'));
or (a little neater)
$table->unique(...
Execute stored procedure with an Output parameter?
...(SSMS),
select execute stored procedure...
and add values for the input parameters as prompted.
SSMS will then generate the code to run the proc in a new query window, and execute it for you. You can study the generated code to see how it is done.
...
How to fix the flickering in User controls
... paste this in your form (not the user control):
protected override CreateParams CreateParams {
get {
CreateParams cp = base.CreateParams;
cp.ExStyle |= 0x02000000; // Turn on WS_EX_COMPOSITED
return cp;
}
}
There are many things you can do to improve painting speed, to the poin...
What's the _ underscore representative of in Swift References?
...ect but I want to clarify a little bit more.
_ is used to modify external parameter name behavior for methods.
In Local and External Parameter Names for Methods section of the documentation, it says:
Swift gives the first parameter name in a method a local parameter name by default, and gives ...
Run an OLS regression with Pandas Data Frame
...ult = sm.ols(formula="A ~ B + C", data=df).fit()
>>> print(result.params)
Intercept 14.952480
B 0.401182
C 0.000352
dtype: float64
>>> print(result.summary())
OLS Regression Results
=================...
Are static fields open for garbage collection?
...tic
{
MyObject myObject = new MyObject();
doStuff(myObject, params);
}
static boolean doStuff(MyObject myObject, Params... params) {
// do stuff with myObject and params...
}
}
since the static initialiser block is a special kind of static method, myObject is a loca...
get name of a variable or parameter [duplicate]
I would like to get the name of a variable or parameter:
3 Answers
3
...
Bind TextBox on Enter-key press
...="{Binding UpdateTextBoxBindingOnEnterCommand}"
CommandParameter="{Binding RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type TextBox}}}" />
</TextBox.InputBindings>
</TextBox>
...which means you are passing the TextBox itself as the parameter t...
Can I initialize a C# attribute with an array or other variable number of arguments?
... will take an array. Though if you control the attribute, you can also use params instead (which is nicer to consumers, IMO):
class MyCustomAttribute : Attribute {
public int[] Values { get; set; }
public MyCustomAttribute(params int[] values) {
this.Values = values;
}
}
[MyCus...
How to POST raw whole JSON in the body of a Retrofit request?
...Exception: Unable to create @Body converter for class MatchAPIRequestBody (parameter #1)
– Shajeel Afzal
Jan 24 '17 at 9:59
...