1 分页this.lblPageIndex.Text=String.Format("第{0}页，共{1}页",this.PageIndex,pageCount);
public void BindDG_fbInfo()
{
DataSet ds=new DataSet();
B2B_HQ.DAL.fbInfo_DAL.Get_fbInfo_all(ds,"fbinfos");
this.dg_fbInfo.DataSource=ds.Tables[0].DefaultView;
this.dg_fbInfo.DataBind();
}
private void dg_fbInfo_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
{
//设置DataGrid当前页的索引值为用户选择的页的索引
this.dg_fbInfo.CurrentPageIndex = e.NewPageIndex;
//重新绑定数据
BindDG_fbInfo();
//显示当前分页信息
ShowStats();
}
//显示当前分页信息
private void ShowStats()
{
//显示当前页面是第几页
lblCurrentIndex.Text = "当前第是 " + (dg_fbInfo.CurrentPageIndex + 1).ToString() + " 页";
//显示总页数
lblPageCount.Text = "总共 " + dg_fbInfo.PageCount.ToString() + " 页";
}
//分别处理”最首页“、“前一页”、“下一页”和“最后页”四个按钮单击时设置DataGrid控件的当前页的索引
public void PageButtonClick(object sender, EventArgs e)
{
//取得按钮单击时传递的命令参数
string arg = ((LinkButton)sender).CommandArgument.ToString();
switch(arg)
{
//如果点击的是“下一页”
case "next":
//如果当前页不是最后一页
if (dg_fbInfo.CurrentPageIndex < (dg_fbInfo.PageCount - 1))
{
//设置DataGrid控件的当前页索引为下一页面
dg_fbInfo.CurrentPageIndex += 1;
}
break;
//如果点击的是“前一页”
case "prev":
//如果当前页不是首页
if (dg_fbInfo.CurrentPageIndex > 0)
{
//设置DataGrid控件的当前页索引为上一页面
dg_fbInfo.CurrentPageIndex -= 1;
}
break;
//如果点击的是“最后页”
case "last":
//设置当前页的索引为最后一页
dg_fbInfo.CurrentPageIndex = (dg_fbInfo.PageCount - 1);
break;
//默认为”最首页“
default:
//设置当前页的索引为首页
dg_fbInfo.CurrentPageIndex = System.Convert.ToInt32(arg);
break;
}
BindDG_fbInfo();
ShowStats();
}
-------------------------------------------------------------------------------------------------------------------
2 获取两表中满足条件的数据:inner join * on *
select a.username,a,userid,b.region from emmsuser a inner join role b on a.roleid=b.roleid where a.username='cyy'
------------------------------------------------------------------------------------------------------------------
3 获得系统根路径
string strAbs = System.Web.HttpContext.Current.Request.Url.AbsoluteUri; (http://localhost/CHCT/Login.aspx)
string strRawUrl = System.Web.HttpContext.Current.Request.RawUrl; (/CHCT/Login.aspx)
string strRoot = strAbs.Substring(0,strAbs.Length - strRawUrl.Length); (http://localhost) 获得系统根路径
------------------------------------------------------------------------------------------------------------------
4 根据用户的角色类型,而转向不同的页面
string strrole = sessionEntity.ACCESS_REGION.ToLower();
if(strrole == "chct" || strrole=="chec" || strrole=="hyd" || strrole=="pbda" )
{
sessionEntity.HOMEPAGE = "CHCT/Common_ascx/home.aspx";
}
else
{
sessionEntity.HOMEPAGE = "LOGIN.ASPX";//System.IO.Path.Combine("LOGIN.ASPX");
}
-----------------------------------------------------------------------------------------------------------------
5 用户登录成功后,把用户所有的信息以实体类方式保存在Session中
System.Web.HttpContext.Current.Session["sessionEntity"] = sessionEntity;
------------------------------------------------------------------------------------------------------------------
6 MD5加密
password = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(password,"MD5");
-----------------------------------------------------------------------------------------------------------------
7 &&与,或||
if(ds != null && ds.Tables.Count > 0 && ds.Tables[0].Rows.Count>0)
8 大写:password.ToUpper(); 小写:password.ToLower();
-----------------------------------------------------------------------------------------------------------------
9 根据返回的不同页面来转向:
private void UserLogin()
{
CHCT.Entity.SessionEntity sessionEntity = Session["sessionEntity"] as CHCT.Entity.SessionEntity ;
//登录HomePage
Response.Redirect(sessionEntity.HOMEPAGE);
}
------------------------------------------------------------------------------------------------------------------
10 打开窗口:
System.Web.HttpContext.Current.Response.Write("<script>var ww = window.screen.width*0.96;var hh =window.screen.height*0.80;window.open(\"../PhotoModule/MaxMapUI.aspx\",\"\",\"height=\"+hh+\",width=\"+ww+\",top=0,left=0,scrollbars=yes,status=no,resizable=yes\")</script>");
---------------------------------------------------------------------
11分页:
public void BindDG_fbInfo()
{
DataSet ds=new DataSet();
B2B_HQ.DAL.fbInfo_DAL.Get_fbInfo_all(ds,"fbinfos");
this.dg_fbInfo.DataSource=ds.Tables[0].DefaultView;
this.dg_fbInfo.DataBind();
}
private void dg_fbInfo_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
{
//设置DataGrid当前页的索引值为用户选择的页的索引
this.dg_fbInfo.CurrentPageIndex = e.NewPageIndex;
//重新绑定数据
BindDG_fbInfo();
//显示当前分页信息
ShowStats();
}
//显示当前分页信息
private void ShowStats()
{
//显示当前页面是第几页
lblCurrentIndex.Text = "当前第是 " + (dg_fbInfo.CurrentPageIndex + 1).ToString() + " 页";
//显示总页数
lblPageCount.Text = "总共 " + dg_fbInfo.PageCount.ToString() + " 页";
}
//分别处理”最首页“、“前一页”、“下一页”和“最后页”四个按钮单击时设置DataGrid控件的当前页的索引
public void PageButtonClick(object sender, EventArgs e)
{
//取得按钮单击时传递的命令参数
string arg = ((LinkButton)sender).CommandArgument.ToString();
switch(arg)
{
//如果点击的是“下一页”
case "next":
//如果当前页不是最后一页
if (dg_fbInfo.CurrentPageIndex < (dg_fbInfo.PageCount - 1))
{
//设置DataGrid控件的当前页索引为下一页面
dg_fbInfo.CurrentPageIndex += 1;
}
break;
//如果点击的是“前一页”
case "prev":
//如果当前页不是首页
if (dg_fbInfo.CurrentPageIndex > 0)
{
//设置DataGrid控件的当前页索引为上一页面
dg_fbInfo.CurrentPageIndex -= 1;
}
break;
//如果点击的是“最后页”
case "last":
//设置当前页的索引为最后一页
dg_fbInfo.CurrentPageIndex = (dg_fbInfo.PageCount - 1);
break;
//默认为”最首页“
default:
//设置当前页的索引为首页
dg_fbInfo.CurrentPageIndex = System.Convert.ToInt32(arg);
break;
}
BindDG_fbInfo();
ShowStats();
}
----------动态获取XML数据到页面.txt------------------------------------------------------------------------------------------
var xmlHttpReq = new ActiveXObject("MSXML2.XMLHTTP.3.0");
xmlHttpReq.open("GET", " http://localhost/books.xml", false);
xmlHttpReq.send();
alert(xmlHttpReq.responseText);