用Reapeter不用返回字符串
cs文件中的方法名要跟其中调用的方法名区别
aspx页面返回字符串的写法：
1.<%=this.GetHtmlHead() %>
2.<% Response.Write(this.GetHtmlHead()); %>
正文内容与搜索内容用同一个方法实现。
编辑时，把设置控件内容的代码写在if (!IsPostBack)中。
Page.ClientScript.RegisterStartupScript(Page.GetType(), "message3", "<script language='javascript' defer>alert('此名称的类别已经存在！');location='manage.aspx';</script>");
Response.Write("<script>alert('该用户名不存在!'); this.location='javascript:history.back(-1)';</script>");
ref、rev两个关键属性:
<a href="javascript:void(0)" rev="DelComment" rel="http://www.cnblogs.com/inc/ajax/album/PhotoOperator.aspx?action=DelComment&commentid=<%# DataBinder.Eval(Container.DataItem, "ID") %>">删除</a>
<input type="submit" class="f-button" rel="http://www.cnblogs.com/inc/ajax/album/PhotoOperator.aspx?action=CommentAdd&r[0]=<%=Phi.PhotoID %>" rev="CommentAdd" value="发表评论" />
分页不正确，看order by 的条件。
<%#this.GetHeadImage(Convert.ToInt32(Eval("userid")), 1) %> //取得头像
string path = this.GetHeadPath(this.UserID);//取得头像路径
//非头像corInfo
photoPath = "" + this.GetOrgPic(Phi.FilePath);
orgPhotoPath = "" + this.GetOrgPic(Phi.FilePath);
在现有DataTable基础上增加列：
DataTable dt = UtilPage.GetPage("Friend_Index_Hot_aspx", PageIndex, 15, out ReCount, out PgCount, null);
dt.Columns.Add("d", typeof(string));
for (int i = 0; i < dt.Rows.Count; i++)
{
string src = this.GetHeadImage(Convert.ToInt32(dt.Rows[i]["userid"].ToString()), 1);
dt.Rows[i]["d"] = src;
}
this.DLhotusers.DataSource = dt;
创建DataTable：
Array arr = Session["UploadPhotos"] as Array;
DataTable dt = new DataTable("table1");
dt.Columns.Add("FilePath", typeof(string));
for (int i = 0; i < arr.Length; i++)
{
DataRow newRow = dt.NewRow();
newRow["FilePath"] = ((object[])(arr))[0].ToString();
dt.Rows.Add(newRow);
}
this.RptPhotoList.DataSource = dt;
this.RptPhotoList.DataBind();
dt.Clear(); dt.Dispose();
if (Input.IsInteger(Request.QueryString["albumid"]))
{
Albumid = Convert.ToInt32(Request.QueryString["albumid"]);
}
else
{
Response.Write("<script>alert('缺少必要的参数!'); this.location='javascript:history.back(-1)';</script>");
Response.End();
}
过滤掉TextBox文本框中的字符串：JuSNS.Common.Input.Filter(key.Trim()); //如果为空，则返回null
aspx页面<%#JuSNS.Common.Input.GetSubString(Eval("content").ToString(),36,"...") %>
截取字符串：JuSNS.Common.Input.GetSubString(dt.Rows[0]["Content"].ToString(),120,"...");
过滤文本框中的字符串：JuSNS.Common.Input.LostHTML(JuSNS.Common.Input.ForTXT(info.Content))
显示表情图片：<%# JuSNS.Common.Public.CheckSma(DataBinder.Eval(Container.DataItem, "Content").ToString())%>
获得IP地址：JuSNS.Common.Public.GetClientIP();
删除文件：
string path = System.Web.HttpContext.Current.Server.MapPath("/web/uploads/photo/" + info.FilePath);
JuSNS.Common.Public.DelFile(path);
public static void DelFile(string path)
{
try
{
if (File.Exists(path))
{
File.Delete(path);
}
}
catch (IOException e) { }
}
分页多个条件：new SqlConditionInfo("@UserID", Convert.ToInt32(r[0]), TypeCode.Int32), new SqlConditionInfo("@AlbumID", Convert.ToInt32(r[1]), TypeCode.Int32)
存储过程：
SqlParameter[] Param = new SqlParameter[3];
Param[0] = new SqlParameter("@Title", SqlDbType.NVarChar, 40);
Param[0].Value = info.Title;
Param[1] = new SqlParameter("@Content", SqlDbType.NText);
Param[1].Value = info.Content;
Param[2] = new SqlParameter("@RecordCount", SqlDbType.Int);
Param[2].Direction = ParameterDirection.Output;
DataTable dt = DbHelper.ExecuteTable(CommandType.StoredProcedure, "NTP_MyPage", Param);
Sql语句：
SqlParameter Param = new SqlParameter("@userid", SqlDbType.Int, 4);
Param.Value = userid;
string Sql = "select bcategoryid,categorytitle,blogcount from nt_blogcategory where userid=@userid";
return DbHelper.ExecuteTable(CommandType.Text, Sql, Param);
返回DataTable：
public DataTable GetPersonInfo(int userid)
{
SqlParameter param = new SqlParameter("@userid",SqlDbType.Int,4);
param.Value = userid;
string sql = "select a.username,c.name,a.portrait,b.sex,b.birthday from nt_user a, nt_userinfo b,NT_Dict_Area c where a.userid=b.userid and c.id=a.city and a.userid=@userid";
DataTable dt = DbHelper.ExecuteTable(CommandType.Text, sql, param);
return dt;
}
GetHeadImage(Convert.ToInt32(dt.Rows[i]["VisitorID"].ToString()), 1)
获得系统消息：new News().GetSysNews(1,1);
读取会员基本信息：
JuSNS.Home.Space sp = new JuSNS.Home.Space();
DataTable dt = sp.getUserInfo(uID, 0);
增加积分：
JuSNS.SQLServer.User us=new JuSNS.SQLServer.User();
us.updateinte(Info.Userid, 5, 0, 0, "添加日志类别");
更新足迹：
UserDyn(trans, 0, 0, "blog", info.UserID, 0, n, "发表了新日志", n.ToString());//n被操作的id
取得好友日志：
SqlConditionInfo friend_st = new SqlConditionInfo("@UserID", GetUserID(), TypeCode.Int32);
dt = JuSNS.Home.UtilPage.GetPage("blog_list_friend", PageIndex, PAGESZ, out ReCount, out PgCount, friend_st);
<script type="text/javascript">
function postblog()
{
var uid='<%=GetUserID() %>';
if(uid=="0")
{
alert("需要登录后才能发表日志！");return false;
}
else
{
return true;
}
}
</script>
分页HTML：
if (ReCount > PAGESZ)
{
this.DivPage.InnerHtml = PageNavigator.Pagination(PageIndex, PgCount, ""+rooDir+"/home/blog/?r=" + r + "&key="+key+"");
}
else
{
this.DivPage.Visible = false;
}
相册中的照片：
Photo p = new Photo();
List<PhotoInfo> infolist = p.InfoList(AlbumID, UserID);
this.GetSmallPic(infolist[i].FilePath, 0)
declare @tempSql nvarchar(3250)
create table #PageIndex
(
IndexID int identity(1,1),
ColumnId int
)
select @tempSql =
'
insert into #PageIndex(ColumnID)
select bCategoryid
from [dbo].[NT_blogcategory] where '
+@WhereCondition+@OrderByExpression
EXEC sp_executesql @tempSql
日期输入文本框：
<script language="javascript" type="text/javascript" src="http://www.cnblogs.com/js/date.js"></script>
<input type="text" id="EndTime" maxlength="100" runat="server" onclick="SelectDate(this,'yyyy-MM-dd')" class="f-text" style=" 100px;" />
switch (r)
{
case "friend":
dt = UtilPage.GetPage("vote_friend_aspx", PageIndex, 20, out c, out p, st);
break;
case "hot":
dt = UtilPage.GetPage("vote_hot_aspx", PageIndex, 20, out c, out p, st);
break;
}
onfocus="if(this.value=='发表你的意见...'){this.value='';}" onblur="if(this.value==''){this.value='发表你的意见...';}"
时间间隔：<%# JuSNS.Common.Public.getTimeEXPINSpan(Convert.ToDateTime(DataBinder.Eval(Container.DataItem, "AddTime")))%>
个人图像的地址：<%# GetHeadImage((int)DataBinder.Eval(Container.DataItem, "UserID"),1)%>
衔接到个人空间：http://www.cnblogs.com/user/<%# JuSNS.Common.Public.URLWrite("", "r", Eval("userid").ToString()) %>
数据字典的绑定：1.
Dictionary<int, string> dct = friend.GetFriendsForGroup(UserID, Convert.ToInt32(GroupID), "");
string s_List = "";
foreach (KeyValuePair<int, string> kvp in dct)
{
s_List += "<div id=\"l" + kvp.Key.ToString() + "\" style=\"height:20px;\"><input type=\"checkbox\" value=\"" + kvp.Key.ToString() + "\" onclick=\"GroupAddMber('" + kvp.Key.ToString() + "','" + kvp.Value + "');\" /> " + kvp.Value + "</div>";
}
2.
JuSNS.Home.Friend friend = new JuSNS.Home.Friend();
Dictionary<int, string> dct = friend.getAllFriendsByUserID(this.UserID);
DataTable dt = new DataTable();
DataRow dr;
dt.Columns.Add("friendID", typeof(int));
dt.Columns.Add("friendName", typeof(string));
foreach (KeyValuePair<int, string> kvp in dct)
{
dr = dt.NewRow();
dr["friendID"] = kvp.Key;
dr["friendName"] = kvp.Value;
dt.Rows.Add(dr);
}
this.RblFriendList.DataSource = dt;
this.RblFriendList.DataTextField = "friendname";
this.RblFriendList.DataValueField = "friendid";
this.RblFriendList.DataBind();
dt.Dispose();
string[] uid = this.Hid_UserID.Value.TrimEnd(';').Split(';'); //char类型的参数用单引号引起来
上传文件的大小this.FileUpload1.PostedFile.ContentLength;
只能输入数字的文本框：
<input onkeyup="if(this.value.length==1){this.value=this.value.replace(/[^1-9]/g,'')}else{this.value=this.value.replace(/\D/g,'')}" onafterpaste="if(this.value.length==1){this.value=this.value.replace(/[^1-9]/g,'')}else{this.value=this.value.replace(/\D/g,'')}" id="invitenum" name="invitenum">
验证日期格式的js:
if(document.getElementById("starttime").value!=""){
var a=/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})/
if (!a.test(document.getElementById("starttime").value)){
alert("活动时间格式不正确!")
document.getElementById("starttime").focus();
return false
}
}
事务：
public int Add(nt_favoritesInfo Info)
{
SqlConnection Conn = new SqlConnection(DBConfig.CnString);
Conn.Open();
SqlTransaction trans = Conn.BeginTransaction();
try
{
SqlParameter[] param = getParameters(Info);
string Sql = "Insert Into nt_Favorites( [categoryid],[userid],[title],[url],[addtime]) " +
"Values(@Categoryid,@Userid,@Title,@Url,@Addtime);" +
"Select @@IDENTITY;";
int id = Convert.ToInt32(DbHelper.ExecuteScalar(trans, CommandType.Text, Sql, param));
UserDyn(trans, 0, 0, "addFavorites", Info.userid, 0, id, "添加了一个收藏", id.ToString());
trans.Commit();
return id;
}
catch (SqlException e)
{
trans.Rollback();
throw e;
}
finally
{
if (Conn.State == ConnectionState.Open)
Conn.Close();
}
}
生成随机图片名称：
Random rd = new System.Random();
string extname = Fupload.PostedFile.FileName.Substring(Fupload.PostedFile.FileName.LastIndexOf(".") + 1).ToLower();
string filename =DateTime.Now.ToString("yyyyMM") + rd.Next(1000).ToString() + "." + extname;
Repeater控件：
protected void Rpt_newvote_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
//foreach (RepeaterItem item in this.Rpt_newvote.Items)
//{
// LinkButton lbnDelete = item.FindControl("lbnDelete") as LinkButton;
// if (string.IsNullOrEmpty(Request.QueryString["r"]) || Request.QueryString["r"]=="my")
// {
// lbnDelete.Visible = true;
// }
//}
int Rcount = this.Rpt_newvote.Items.Count;
for (int i = 0; i < Rcount+1; i++)
{
LinkButton lbnDelete = e.Item.FindControl("lbnDelete") as LinkButton;
if (string.IsNullOrEmpty(Request.QueryString["r"]) || Request.QueryString["r"] == "my")
{
lbnDelete.Visible = true;
}
}
}
过滤输入的内容：
string Content = Request["body1"];
Content = Common.Input.loseScript(Content);
Content = Common.Input.loseIframe(Content);
#region 过滤关键字
string res = JuSNS.Common.Public.CheckKey(Content, true);
if (res != "")
{
Content = Content.Replace(res, "***");
}
#endregion
通知：
JuSNS.Home.ParseTemplate pt=new ParseTemplate("{NoteStr}");
pt.Result
站内信：
<span id="MailCount" class="font11">(-)</span>
<script type="text/javascript">GetMailCount();</script>
<script language="javascript" type="text/javascript" src="{RootDir}/js/ajax.js"></script>
<script language="javascript" type="text/javascript" src="{RootDir}/js/public.js"></script>
控件添加属性：this.Button1.Attributes.Add("onclick", "govote(" + r + ");");
动态：JuSNS.SQLServer.ParseUserLog.cs dyn.config
js检查是否为邮箱（引入public.js）：if(s == '' || !s.IsEmail())
浏览次数：bool addreads = false;
string cookieid = "PhotoReadA_" + photoid + "_" + usernm;
if (Request.Cookies[cookieid] == null || Request.Cookies["PhotoReadA_" + photoid + "_" + usernm].Value != "1")
{
HttpCookie cooknum = new HttpCookie(cookieid);
Response.Cookies[cookieid].Value = "1";
Response.Cookies[cookieid].Expires = DateTime.Now.AddDays(1);
addreads = true;
}
if (Request.Cookies[cookieid] != null && Request.Cookies["PhotoReadA_" + photoid + "_" + usernm].Value != "1")
{
Response.Cookies[cookieid].Value = "1";
Response.Cookies[cookieid].Expires = DateTime.Now.AddDays(1);
addreads = true;
}
if (addreads)
{
bllphoto.AddViews(Phi.PhotoID);
}
验证码：
<input type="text" name="TxtVerify" class="f-text" id="TxtVerify" />
<script language="javascript" type="text/javascript">
var numkey = Math.random();
numkey = Math.round(numkey*10000);
document.write("<img align=\"adsmiddle\" src=\"inc/code/image.aspx?k="+ numkey +"\" onClick=\"this.src+=Math.random()\" alt=\"点击重新获得验证码\" style=\"cursor:pointer;\" height=\"22\" hspace=\"4\" />");
</script>
注册表中注册：regsvr32 "D:\VSS\SSSCC.DLL"
查看端口是否打开：telnet 192.168.1.242:8090
端口例外：控制面板 Windows防火墙 例外
ajax的处理页面为aspx时，除第一句外其余都删除。
用户控件传值：
<uc3:MyIntro ID="MyIntro1" runat="server" UserId="<%=userid %>"/>
.ascx.cs:
protected string userid;
public string UserId
{
set { userid = value; }
}
使用组件，可能还要在web.config中注册
使用Iframe，则Iframe中的衔接问题要考虑到,在父窗口中打开窗口用onclick="parent.location.href='/user/user.aspx'"。
<add assembly="System.Web.Extensions.Design, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
updatepanel控件在有designer.cs的项目中无效
编辑之前的页面状态应该写在if (!IsPostBack){}中
上传图片生成4张不同大小的：
aspx页面：<form method="post" action="" enctype="multipart/form-data" name="uploadpicture" id="uploadpicture" runat="server" onsubmit="return picvalue();">
<input type="file" name="picture" class="f-text" id="picture" />
<script type="text/javascript">
function picvalue()
{
if(document.getElementById("picture").value=="")
{
alert("请选择图片");return false;
}
else
{
return true;
}
}
</script>
.aspx.cs页面：
JuSNS.Common.PicUpload.PicUpload picup = new HeadUpload();
picup.Start();
abi.FilePath = picup.OutFileName;
object b=db.ExecuteScalar(sql1);
if (object!=null)
留言、礼物、信件等双向的东西，删除时只能是隐藏。
将出生日期转化为年龄：
SqlServer，datediff(year,birthday,getdate()) as birthday
Access，datediff('yyyy',birthday,now) as birthday
CheckBoxList:
for (int i = 0; i < CBLMasterLanguage.Items.Count; i++)
{
if (CBLMasterLanguage.Items[i].Selected == true)
{
info.MasterLanguage += CBLMasterLanguage.Items[i].Value + ",";
}
}
编辑时：
string[] language = info.MasterLanguage.TrimEnd(',').Split(',');
for (int n = 0; n < language.Length; n++)
{
this.CBLMasterLanguage.Items.FindByValue(language[n]).Selected = true;
}
修改密码时要：Input.MD5(this.tbOldPassWord.Text,false)
web层是项目的，有.cs文件的不能应用局部无刷新技术，可以用/表示根目录；
web层是网站的，可以应用局部无刷新技术，用<%=Global.GetFullVirPath() %>来表示根目录。
鼠标经过变色：
protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
{//鼠标行为
e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#FFC0C0'");
e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c;");
}