请帮我解决这个问题.我认为Linq适用于集合或数组.Linq如何处理单个字符串变量.
如何在JQuery中遍历表？
代码如下,
<table id="tblData">
<tr id="tr_1">
<td><input type="text" id="txtData1" /></td>
</tr>
<tr id="tr_4">
<td><input type="text" id="txtData4" /></td>
</tr>
<tr id="tr_10">
<td><input type="text" id="txtData10" /></td>
</tr>
</table>
如何获取每行的HTML？
我有一个Android应用程序,主屏幕是一个选项卡视图.其中一个标签转到"收件箱"活动.我想显示一个数字,表示新消息的数量.这似乎是iPhone应用程序的标准功能.对此有什么样的系统支持吗？如果没有,为android tabviews实现此效果的最简单方法是什么？
Ey伙计们,这看似简单的问题,但显然对我来说太复杂了.我正在尝试创建一个MKPolygon实例并且它不太顺利.这是代码:
MKMapPoint point1 = {38.53607,-121.765793};
MKMapPoint point2 = {38.537606,-121.768379};
MKMapPoint point3 = {38.53487,-121.770578};
NSArray *mapPointArr = [[NSArray alloc] initWithObjects:point1,point2,point3,nil count:3]; //errors here
MKPolygon *polygon = [MKPolygon polygonWithPoints:mapPointArr count:3];
我在初始化数组的行上得到了一堆错误(incompatible type for argument 1...).知道什么是错的吗？提前致谢!
我有以下seeds.rb文件:
State.create [
{:name => "Alabama", :abbreviation => "AL" },
{:name => "Alaska", :abbreviation => "AK" },
{:name => "Arizona", :abbreviation => "AZ" },
{:name => "Arkansas", :abbreviation => "AR" },
{:name => "California", :abbreviation => "CA" },
{:name => "Colorado", :abbreviation => "CO" },
{:name => "Connecticut", :abbreviation => "CT" },
{:name => "Delaware", :abbreviation => "DE" },
{:name => "District Of Columbia", :abbreviation => "DC" },
{:name => "Florida", :abbreviation => "FL" },
{:name => "Georgia", :abbreviation => …我有以下代码,奇怪的是,它工作了几秒钟然后停止工作(我的事件处理程序方法停止被调用):
public partial class Form1 : Form
{
private void Form1_Load(object sender, EventArgs e)
{
webBrowser1.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(webBrowser1_DocumentCompleted);
webBrowser1.Navigate("google.com");
}
private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
if (!webBrowser1.IsBusy && webBrowser1.Url == e.Url && webBrowser1.ReadyState == WebBrowserReadyState.Complete)
{
HTMLWindowEvents_Event windowEvents = webBrowser1.Document.Window.DomWindow as HTMLWindowEvents_Event;
windowEvents.onscroll += new HTMLWindowEvents_onscrollEventHandler(windowEvents_onscroll);
}
}
private void windowEvents_onscroll()
{
HtmlDocument htmlDoc = webBrowser1.Document;
int scrollTop = htmlDoc.GetElementsByTagName("HTML")[0].ScrollTop;
string text = scrollTop.ToString();
}
}
我正在使用Devise来允许用户注册,以及使用我自己的用户admin来手动创建用户.当我在管理员中创建用户时,Devise会立即向新用户发送确认.我相信这是因为设计和我的管理员都使用相同的模型.在管理员准备发送此电子邮件之前,如何延迟此电子邮件？
此外,Devise的验证要求管理员为新用户设置密码.我更希望手动创建的用户在回复确认时指定自己的密码.现在手动创建的用户将不知道他们的密码,除非我在补充电子邮件中发送它们.
我一直在处理我们的介绍脚本编写任务,并且在调用脚本中的函数时遇到了问题.我在作业的第二部分,我只是在测试,以确保我所拥有的(希望)能够发挥作用.我收集了一些目录,并询问是或否.当我得到'y'时,我写了一个我调用的小函数,当我得到一个'n'时,我有另一个函数,两个简单的回声.有什么问题？
part_two(){
answer=""
for value in "$@";do
echo "$value"
while [ "$answer" != "y" -a "$answer" != "n" ]
do
echo -n "Would you like to save the results to a file? (y/n): "
read answer
done
if [ "$answer" = "n" ]
then
part_six
elif [ "$answer" = "y" ]
then
part_five
fi
done
}
part_two $@
part_five(){
echo -n "working yes";
}
part_six(){
echo -n "working no";
}
一如既往,我们将非常感谢任何帮助.
这是程序,
CREATE OR REPLACE PROCEDURE provsnXmlCmprsn (
encyNo SAS_PRO_CTL.AGENCYNO%TYPE, period SAS_PRO_CTL.PERIODE%TYPE) IS
xmlContent SAS_PRO_XML.XMLCONTENT%TYPE;
sasProvisionId SAS_PRO_CTL.SASPROVISIONID%TYPE;
CURSOR crsrXml IS
SELECT XMLCONTENT, c.SASPROVISIONID FROM SAS_PRO_XML x, SAS_PRO_CTL c
WHERE x.SASPROVISIONID = c.SASPROVISIONID AND c.PERIODE = period
AND c.AGENCYNO = agencyNo ORDER BY XMLLINENO;
BEGIN
DBMS_OUTPUT.put_line('Params: ' || agencyNo || ', ' || period);
OPEN crsrXml;
LOOP
FETCH crsrXml INTO xmlContent, sasProvisionId;
EXIT WHEN crsrXml%NOTFOUND;
DBMS_OUTPUT.put_line('XML Content Length: ' || LENGTH(xmlContent));
END LOOP;
CLOSE crsrXml;
END provsnXmlCmprsn;
cursor根据条件和参数值,查询中的查询是5行,而预期是1行.当独立运行时,相同的查询会产生1行.令人惊讶的是,cursor无论条件是否c.PERIODE …