大约有 40,000 项符合查询结果（耗时：0.0504秒） [XML]
Index (zero based) must be greater than or equal to zero
...care.
//Wrong Code:
string name="my name";
string age=25;
String.Format(@"Select * from table where name='{1}' and age={1}" +name, age);
//Right Code:
string name="my name";
string age=25;
String.Format(@"Select * from table where name='{1}' and age={1}" , name, age);
...
How to ignore files/directories in TFS for avoiding them to go to central source repository?
...ol Explorer. This launches a small wizard, and on one of the steps you can select items to exclude (although, I think you have to add at least one item to TFS with this method for the wizard to let you continue).
You can even add a forbidden patterns check-in policy (under Team -> Team Project S...
Getting “CHECKOUT can only be performed on a version resource” when trying to commit using Eclipse s
...om my project (by right clicking on the project from the package explorer, selecting "Team" -> "Commit"), I get the error:
...
How do I change the data type for a column in MySQL?
...n type to another type, you can generate queries using a query like this:
select distinct concat('alter table ',
table_name,
' modify ',
column_name,
' <new datatype> ',
if(is_nu...
How to convert an entire MySQL database characterset and collation to UTF-8?
...
You can create the sql to update all tables with:
SELECT CONCAT("ALTER TABLE ",TABLE_SCHEMA,".",TABLE_NAME," CHARACTER SET utf8 COLLATE utf8_general_ci; ",
"ALTER TABLE ",TABLE_SCHEMA,".",TABLE_NAME," CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci; ")
AS a...
Debugging WebSocket in Google Chrome
...ad your page and initiate the WebSocket connections
Click the Network Tab.
Select the WebSocket connection from the list on the left (it will have status of "101 Switching Protocols".
Click the Messages sub-tab. Binary frames will show up with a length and time-stamp and indicate whether they are ma...
Compare two DataFrames and output their differences side-by-side
...
Is it possible to select only different rows? In this case how do I select second and third row without selecting first row (111)?
– shantanuo
May 4 '18 at 8:13
...
Jump to function definition in vim
... mentioned you have to use ctags.
You could also consider using plugins to select appropriate one or to preview the definition of the function under cursor.
Without plugins you will have a headache trying to select one of the hundreds overloaded 'doAction' methods as built in ctags support doesn't ...
AppSettings get value from .config file
...iguration
Go to your Solution Explorer and right click on References and select Add reference. Select the Assemblies tab and search for Configuration.
Here is an example of my App.config:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<startup>
<suppo...
Which HTML elements can receive focus?
...ich the only elements that have a focus() method are
HTMLInputElement, HTMLSelectElement, HTMLTextAreaElement and HTMLAnchorElement. This notably omits HTMLButtonElement and HTMLAreaElement.
Today's browsers define focus() on HTMLElement, but an element won't actually take focus unless it's one of:
...