我正在通过JavaScript显示确认提示框:
function checked() {
if (hdnval.toLowerCase() != textbox1.toLowerCase()) {
var save = window.confirm('valid')
if (save == true)
{
return true;
}
else
{
return false;
}
}
}
确认警报显示两个按钮:确定和取消.
我想在确认提醒中显示第三个按钮.我希望这三个按钮是这样的:'是''否''取消',因为它在MS Word中显示.
我对以下三种清除文本框内容的方法感到有点困惑.我正在使用WPF并发现All正在工作,但我无法找到差异.
有人可以用一些例子向我解释一下吗？
txtUserName.Clear();txtUserName.Text = string.Empty;txtUserName.Text = "";我有一个SP,我试图返回2个结果集,并在我的.cs文件中我尝试这样的事情:
dr = cmd.ExecuteReader();
while (dr.Read())
{
RegistrationDetails regDetails = new RegistrationDetails()
{
FName = dr["FName"].ToString(),
LName = dr["LName"].ToString(),
MName = dr["MName"].ToString(),
EntityName = dr["EntityName"].ToString(),// in 2nd result set
Percentage = dr["Percentage"].ToString()// in 2nd result set
};
}
但是我得到了:
错误:IndexOutOfRange {"EntityName"}
我使用HttpContext从数据库导出数据,格式为table,tr和td.我想读取相同的文件并转换为datatable.
<add name="Excel03ConString" connectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties='HTML Import;HDR={1};IMEX=1'" />
<add name="Excel03ConString" connectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties='Excel 8.0;HDR={1};IMEX=1'" />
private DataTable GetTableFromExcel()
{
DataTable dt = new DataTable();
try
{
if (exclFileUpload.HasFile)
{
string FileName = Path.GetFileName(exclFileUpload.PostedFile.FileName);
string Extension = Path.GetExtension(exclFileUpload.PostedFile.FileName);
string FolderPath = Server.MapPath(ConfigurationManager.AppSettings["FolderPath"]);
//string NewFileName = string.Format("{0}_{1}", DateTime.Now.ToString().Replace("/", "").Replace(" ", "").Replace(":", ""), FileName);
string FilePath = Path.Combine(string.Format("{0}/{1}", FolderPath, FileName));
exclFileUpload.SaveAs(FilePath);
string conStr = "";
switch (Extension)
{
case ".xls": //Excel 97-03
conStr = ConfigurationManager.ConnectionStrings["Excel03ConString"].ConnectionString;
break;
case ".xlsx": //Excel 07
conStr = ConfigurationManager.ConnectionStrings["Excel07ConString"].ConnectionString; …我有.txt文件(包含超过百万行),大约1GB,我有一个字符串列表,我试图删除字符串列表中存在的文件中的所有行并创建新文件,但它正在采取很长时间.
using (StreamReader reader = new StreamReader(_inputFileName))
{
using (StreamWriter writer = new StreamWriter(_outputFileName))
{
string line;
while ((line = reader.ReadLine()) != null)
{
if (!_lstLineToRemove.Contains(line))
writer.WriteLine(line);
}
}
}
如何提高代码的性能？
我正在做如下的事情..
querybuilder = ("SELECT Type, Text FROM [Element] WHERE Id IN( ");
foreach (var item in CaseIdList)
{
querybuilder += item + ",";
}
querybuilder += ")";
在最后一个insdie关闭括号我得到一个逗号.如何删除.
我有aspx,我正在调用ascx用户控件,因为我正在使用tinymce编辑器.当我试图保存数据时,我收到错误..
从客户端检测到一个潜在危险的Request.Form值(UserControl1 $ TextBox1 ="
FGH
fghj
我已经检查了从客户端检测到的潜在危险的Request.Form值
我试过了:
web.config我设置
<pages validateRequest="false">
<httpRuntime requestValidationMode="2.0" requestPathInvalidCharacters=""/>
<compilation debug="true" targetFramework="4.0">
<@page validateRequest="false">
Server.HtmlEncode(TextBox1.Text)
encoding: "xml" // This is solving the prob. but Text is converting in HTML tag I don't want that
请有人帮帮我......
我试图强制转换Windows.Controls到Windows.Form,但得到空.
private void treeView_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
var tv = sender as System.Windows.Forms.TreeView;
}
我可以强制转换System.Windows.Controls到System.Windows.Forms,如果是的话怎么办？
我有一个数据表dt1有4列(名称,地址,联系人,标记)有0行,我有另一个数据表dt2与2列(StdName,StdAddress)有几行.
当我做的事情像dt1 = dt2.copy(); 然后我的dt1正在改变.这是我不想要的.
我想将dt2列和值复制到dt1.所以在我的dt1列(名称和地址)中将填充stdName和StdAddress值.
请有人帮我怎么做.
我试图加入两个表并创建一个元组列表,但得到的错误是"LINQ to Entities中只支持无参数构造函数和初始值设定项"
var list = (
from a in db.CategoryRatings
join c in db.OverallPerformanceByCategories
on a.CategoryRatingId equals c.CategoryRatingId
where c.ReviewId == review.ReviewId
select(new Tuple<string, double, double>(a.CategoryRatingName, a.CategoryWeight, c.Score))
).ToList();
ViewData["ListOverallRating"] = list;
我不想创建使用元组的匿名类型列表,也可以建议其他方式.