笔记
private static HttpWebResponse Is_Exist_Path(string path)
{
HttpWebRequest myReq = (HttpWebRequest)WebRequest.Create(path);
myReq.Method = "HEAD";
HttpWebResponse myRes = (HttpWebResponse)myReq.GetResponse();
return myRes;
}
HttpWebResponse myRes = Is_Exist_Path(path);
if (myRes.StatusCode == HttpStatusCode.OK) //判断如果文件存在，执行以下语句-----------------
DialogResult result = MessageBox.Show("用户名："+txtEntName.Text+",充值金额："+txtMoney.Text+"元。确定要充值吗？", "", MessageBoxButtons.OKCancel, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2, MessageBoxOptions.DefaultDesktopOnly);
if (result.ToString() == "OK")
{
}//用时
Stopwatch sw = new Stopwatch();
sw.Start();sw.Stop();
耗时：{0}毫秒", sw.ElapsedMilliseconds.ToString());
//定时器
<script language="javascript" type="text/javascript">
var inforbox = document.getElementById("inforbox_10555");
var timer = setTimeout(inforClose,20000);//设置定时器
inforbox.onmouseover = function(){
clearTimeout(timer);
}
inforbox.onmouseout = function(){
timer = setTimeout(inforClose,20000);
}
function inforClose(){
inforbox.style.display = "none";
}
</script>在项目中的CSS中添加下面的样式，就可以解决CalendarExtender被DropList遮挡的问题。
.ajax__calendar {
position: relative;
left: 0px !important;
top: 0px !important;
visibility: visible;
display: block;
}
.ajax__calendar iframe
{
left: 0px !important;
top: 0px !important;
}//手动指定ddl的Text和Value
ddlArea.DataSource = areaBll.GetModelList("");
ddlArea.DataValueField = "AreaID";
ddlArea.DataTextField = "AreaName";
ddlArea.DataBind();
绑定String时用<%# Container.DataItem%>
//格式化日期
<%#Eval("OpeningTime", "{0:yyyy-MM-dd}")%>
//查出指定时间的信息
SELECT * FROM V_Product_Provide where Status=1 AND datediff(day,CreateTime,getdate()) <=7
//插一行在第一列
this.ddlTime.Items.Insert(0, "所有发布时间");
//图片加边框
style="width: 55px; height: 69px; border: 1px #ccc solid"
// Search2 要加AND
DBUtility.Search3("T_Shop_Orders", "Id", "*", true, page, pageSize, "OrderDate", desc, sqlStr, false, ref pagesCount, ref rowsCount);
//只要没有CheckBox 被选种 则跳出提示
function checkall(str) {
var xi = 0;
var tid = ";";
var chk = $('input[type="checkbox"]');
for ( var i = 0; i < chk.length; i++) {
if ($(chk[i]).attr("Checked")) {
xi = xi + 1;
tid = tid + $(chk[i]).attr("title") + ";";
}
}
if (xi == 0) {
alert("请选择要 "+ str +" 的邮件");
return false;
} else {
$("#TextBox1").val(tid);
}
}OnClientClick="return checkall('str')"
(需要引入 jquery-1.3.2.min.js)
//拆分字符为数组
protected string[] GetProid(string proidString)
{char[] s_line = {','};
string[] proid = proidString.Split(s_line);
return proid;
}调用 string[] temp = GetProid(Request.QueryString["proidString"]);
for (int i = 0; i < temp.Length - 1; i++)(最后一个为 , 号所以减1)
{
delOrderAndOrderDetail(temp[i]);
}//传参数
Response.Redirect("/Member/Login.aspx?returnPage==" + Server.UrlDecode("/Web/CN/ShoppingCar/CheckCar.aspx" + Request.QueryString["MOrderId"] + Request.QueryString["OrderIdString"]));
注册AJAX控件 <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
/// 订单编号 + 随即数
static string GetNo(int num)
{
string a = "0123456789";
StringBuilder sb = new StringBuilder();
for (int i = 0; i < num; i++)
{
sb.Append(a[new Random(Guid.NewGuid().GetHashCode()).Next(0, a.Length - 1)]);
}return sb.ToString();
}string number = DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString() + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + GetNo(2);
string number = DateTime.Now.ToString("yyyyMMddHHmmss") + GetNo(4);
/// <summary>
/// 计算两个日期的时间间隔
/// </summary>
/// <param name="DateTime1">第一个日期和时间</param>
/// <param name="DateTime2">第二个日期和时间</param>
/// <returns></returns>
private int DateDiff(DateTime DateTime1, DateTime DateTime2)
{
TimeSpan ts1 = new TimeSpan(DateTime1.Ticks);
TimeSpan ts2 = new TimeSpan(DateTime2.Ticks);
TimeSpan ts = ts1.Subtract(ts2).Duration();
return ts.Days;
}//日期大小 TimeSpan
private void TimeSpan(DateTime start, DateTime end)
{
int time = 0;
if (DateTime.Compare(start, end) < 0)
{
time = DateTime.Compare(start, end);
TimeSpan ts = end - start;
time = ts.Days;
}
else
{
time = DateTime.Compare(start, end);
TimeSpan ts = start - end;
time = ts.Days;
}}
获得HTTP请求的头
for (int i = 0; i < HttpContext.Current.Request.ServerVariables.Count; i++)
{
HttpContext.Current.Response.Write(HttpContext.Current.Request.ServerVariables.GetKey(i) + "_________" + HttpContext.Current.Request.ServerVariables[i].ToString() + " ");
}
{
1..Response.Redirect("/CN/Product/Supply/Bargain.aspx?pid=" + MyCategoryId + "&tpid=" + CategoryID);
2..ScriptManager.RegisterClientScriptBlock(this, this.Page.GetType(), "open", "window.open(\"/CN/Product/Supply/Bargain.aspx?pid="+MyCategoryId+"&tpid="+CategoryID+"\");", true);
}
查找替换using System.Text.RegularExpressions;
它里面的 它 换 它 忽略大小写
1。tsql = Regex.Replace(tsql, "create", "alter", RegexOptions.IgnoreCase); 替换所有的
把它里面的 它 换成 它
2。tsql = tsql.Replace("CREATE", "ALTER"); 替换所有的在它里面 找它 忽略大小写
3。MatchCollection mc = Regex.Matches(tsql, @"create", RegexOptions.IgnoreCase);
if (mc.Count > 0)
{
Match m = mc[0];//取得第一个 替换成它
tsql = new Regex(m.Value).Replace(tsql, "alter ", 1, m.Index); 只替换第一个
}
确定窗口
DialogResult objDialogResult = MessageBox.Show("您确定要删除记录吗？", "确认", MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1,MessageBoxOptions.DefaultDesktopOnly);
if (objDialogResult == DialogResult.Yes)
{
}调用前台JS
ScriptManager.RegisterClientScriptBlock(this, this.Page.GetType(), "clear", "getAllSelect(this)", true);
<div style="padding-left: 21px; overflow: hidden; width: 230; white-space: nowrap; text-overflow: ellipsis;cursor:hand;" class="zhxx"> 多出了自动用。。。表示</div>
DialogResult objDialogResult = MessageBox.Show("您确定要删除记录吗？", "确认", MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1,MessageBoxOptions.DefaultDesktopOnly);
if (objDialogResult == DialogResult.Yes)
{
}public void Msg(string str) {
Page.RegisterStartupScript("test", "<script>alert('" + str + "');window.location.href=window.location.href;</script>");
}初始化VS
devenv /resetsettings
devenv /resetskippkgs
12345.ToString("n"); //生成 12,345.00
12345.ToString("C"); //生成 ￥12,345.00
12345.ToString("e"); //生成 1.234500e+004
12345.ToString("f4"); //生成 12345.0000
12345.ToString("x"); //生成 3039 (16进制)
12345.ToString("p"); //生成 1,234,500.00%//防止后退 重复提交
OnClientClick="javascript:location.replace(this.href); event.returnvalue=false; "
//web.config 乱码
<system.web>
<globalization requestEncoding="gb2312" responseEncoding="gb2312" />
//读取自定义节点
<SpringOverrideProperty>
<add key="DbProvider.ConnectionString" value="Persist Security Info=False;User ID=sa;Initial Catalog=SFY;Data Source=172.16.73.69"/>
<add key="XX" value="XXX"/>
</SpringOverrideProperty> </configuration>
读取key为DbProvider.ConnectionString的valueXmlDocument DocXml = new XmlDocument();
DocXml.Load(Server.MapPath("web.config"));
XmlNode xmlNo = DocXml.SelectSingleNode("//SpringOverrideProperty/add[@key=\"DbProvider.ConnectionString\"]");
Num1.Text = xmlNo.Attributes["value"].Value.ToString();
//加载外部XML
private static AppSettingsSection app;
static AutomationEmail()
{
ExeConfigurationFileMap file = new ExeConfigurationFileMap();
file.ExeConfigFilename = System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase + ConfigurationManager.AppSettings.Get("email");
Configuration config = ConfigurationManager.OpenMappedExeConfiguration(file, ConfigurationUserLevel.None);
app = config.AppSettings;
}
private static string GetValueByKey(string key)
{
return app.Settings[key].Value;
}
//查找 重复项
select * from aspnet_Users where UserName in( select UserName from aspnet_Users group by UserName having count(*) > 3 )