大约有 40,000 项符合查询结果（耗时：0.0788秒） [XML]
ExecuteReader requires an open and available Connection. The connection's current state is Connectin
...Promotion(int promotionID)
{
Promotion promo = null;
var connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["MainConnStr"].ConnectionString;
using (SqlConnection connection = new SqlConnection(connectionString))
{
var queryString = "SELECT Promotio...
Why this line xmlns:android=“http://schemas.android.com/apk/res/android” must be the first in the la
...rm Resource Identifier (URI)
A Uniform Resource Identifier (URI) is a string of characters which
identifies an Internet Resource.
The most common URI is the Uniform Resource Locator (URL) which
identifies an Internet domain address. Another, not so common type of
URI is the Universal...
How can I stop .gitignore from appearing in the list of untracked files?
...on.
So, add it to your repository, it should not be gitignored.
If you really want you can add .gitignore to the .gitignore file if you don't want it to be committed. However, in that case it's probably better to add the ignores to .git/info/exclude, a special checkout-local file that works just l...
WebForms UnobtrusiveValidationMode requires a ScriptResourceMapping for 'jquery'. Please add a Scrip
...added:
protected void Application_Start(object sender, EventArgs e)
{
string JQueryVer = "1.7.1";
ScriptManager.ScriptResourceMapping.AddDefinition("jquery", new ScriptResourceDefinition
{
Path = "~/Scripts/jquery-" + JQueryVer + ".min.js",
DebugPath = "~/Scripts/jquery-...
Go naming conventions for const
...o the compiler.
// Only visible to the local file
const localFileConstant string = "Constant Value with limited scope"
// Exportable constant
const GlobalConstant string = "Everyone can use this"
share
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...
Django: Display Choice Value
...ing your information via JSON (for instance in a pagination scenario)? Ideally without the overhead of instantiating the Models one by one and calling get_field_display().
– DylanYoung
Mar 23 '17 at 17:34
...
Is “for(;;)” faster than “while (TRUE)”? If not, why do people use it?
... for(;;)
{
puts("for");
}
}
compiles to (in part):
.LC0:
.string "while"
.text
.globl while_infinite
.type while_infinite, @function
while_infinite:
pushl %ebp
movl %esp, %ebp
subl $24, %esp
.L2:
movl $.LC0, (%esp)
call puts
jmp .L2
.s...
How to trace the path in a Breadth-First Search?
... found
if node == end:
return path
# enumerate all adjacent nodes, construct a new path and push it into the queue
for adjacent in graph.get(node, []):
new_path = list(path)
new_path.append(adjacent)
queue.append(new_path)
prin...
Install shows error in console: INSTALL FAILED CONFLICTING PROVIDER
...tudio, the manifest merging options will allow you to tailor the authority string. Otherwise, remove the <provider> from the library's manifest and define it at the application level with a unique authority string.
– CommonsWare
Oct 15 '14 at 14:48
...
Are Roslyn SyntaxNodes reused?
...ntence was "Because when you look at operations that are typically done on strings in .NET programs, it is in every relevant way hardly worse at all to simply make an entirely new string." OTOH, when you look at operations that are typically done on an expression tree -- e.g. typing a few character...