我认为权限是个比较复杂的东东,我写了个简单的代码,就是登陆后把此用户的权限列表读出来,放在一个hashtable里,并放到一个session中,用的时候就比较这个菜单或一个文件的权限是否在hashtable中,不知道这种想法对不对,希望大家提出意见
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class Default5 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{//表示是否登陆
Session["username"] = "admin";
Hashtable ht = new Hashtable();
ht.Add("调查管理", "1");
ht.Add("新闻管理", "2");
ht.Add("会员管理", "3");
//权限表
Session["popedom"] = ht;
}
protected void Button2_Click(object sender, EventArgs e)
{
Session.Abandon();
}
protected void LinkButton1_Click(object sender, EventArgs e)
{
if (Session["username"]!=null)
{
if (((Hashtable)Session["popedom"]).Contains("调查管理"))
{
LinkButton1.Text = "有调查管理权限";
}
}
else
{
LinkButton1.Text = "你没有调查管理权限";
Page.ClientScript.RegisterClientScriptBlock(Page.GetType(), "dd", "alert('你没有调查管理权限');", true);
}
}
protected void LinkButton2_Click(object sender, EventArgs e)
{
if (Session["username"]!=null)
{
if (((Hashtable)Session["popedom"]).Contains("新闻管理"))
{
LinkButton2.Text = "有新闻管理权限";
}
}
else
{
LinkButton2.Text = "你没有新闻管理权限";
Page.ClientScript.RegisterClientScriptBlock(Page.GetType(), "dd", "alert('你没有新闻管理权限');", true);
}
}
}
<body leftmargin=5 topmargin=0 onmouseover="document_onmouseover();"onclick="document_onclick();" id="all" >
<SCRIPT LANGUAGE="javascript">
var curObj= null;
var curObjmouseover=null;
function document_onclick() {
if(window.event.srcElement.tagName=='A'||window.event.srcElement.tagName=='FONT'){
if(curObjmouseover!=null)
curObjmouseover.style.background='';
if(curObj!=null)
curObj.style.background='';
curObj=window.event.srcElement;
curObj.style.background='#ff0099';
}
}
function document_onmouseover() {
if(window.event.srcElement.tagName=='A'||window.event.srcElement.tagName=='FONT'){
if(curObjmouseover!=null)
{curObjmouseover.style.background='';
curObjmouseover.style.color='#000000';}
if(curObj!=null)
curObj.style.background='';
curObjmouseover=window.event.srcElement;
curObjmouseover.style.background='#cccc00';
curObjmouseover.style.color='#ffffff';
}
}
</SCRIPT>
<div>
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public static int Main(string[] args)
{
Console.WriteLine("============================");
string s = "i'm a student,my name is yuhong!ok!!!";
string[] sArray = System.Text.RegularExpressions.Regex.Split(s, @"[^\w]+", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
//记录标点符号
string[] sArray2 = System.Text.RegularExpressions.Regex.Split(s, @"[\w]+",System.Text.RegularExpressions.RegexOptions.IgnoreCase);
int start = 0;
int end = sArray.Length - 1;
while (start<end)
{
string tmp = sArray[start];
sArray[start] = sArray[end];
sArray[end] =tmp;
start++;
end--;
}
start = 0;
end = sArray2.Length - 1;
while (start < end)
{
string tmp = sArray2[start];
sArray2[start] = sArray2[end];
sArray2[end] = tmp;
start++;
end--;
}
// s=string.Join(" ", sArray);
string result = "";
for (int i2 = 0; i2 < sArray.Length; i2++)
{
result += sArray[i2] + sArray2[i2];
}
s = result;
Console.WriteLine(s);
//Console.WriteLine("============================");
//string str1 = "我**是*****一*****个*************教*****师";
//string[] str2 = System.Text.RegularExpressions.Regex.Split(str1, @"[*]+");
//foreach (string iss in str2)
// Console.WriteLine(iss.ToString());
return 0;
}
在.net 2.0中有System.Web.UI.WebControls.CompositeControl，使得编写的复合控件在使用时有更友好的界面
以前在做复合控件时最常见的是以下代码
public class LabelTextBox :WebControl, INamingContainer
{
public string Text {
get {
object o = ViewState["Text"];
if (o == null)
return String.Empty;
return (string) o;
}
set { ViewState["Text"] = value; }
}
public string Title {
get {
object o = ViewState["Title"];
if (o == null)
return String.Empty;
return (string) o;
}
set { ViewState["Title"] = value; }
}
protected override void CreateChildControls()
{
Controls.Clear();
CreateControlHierarchy();
ClearChildViewState();
}
protected virtual void CreateControlHierarchy()
{
TextBox t = new TextBox();
Label l = new Label();
t.Text = Text;
l.Text = Title;
Controls.Add(l);
Controls.Add(t);
}
}
重点是这一句
public class LabelTextBox :WebControl, INamingContainer
继承了WebControl类和实现ImamingContainer了接口
但是这样做成的复合控件在使用时设计界面很不友好，在2.0中新增了一个System.Web.UI.WebControls.CompositeControl
这样在作用控件的时候就不会有设计的障碍了，代码如下
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace CompositeControl
{
[DefaultProperty("Text")]
[ToolboxData("<{0}:LabelTextBox runat=server></{0}:LabelTextBox>")]
public class LabelTextBox : System.Web.UI.WebControls.CompositeControl
{
public string Text
{
get
{
object o = ViewState["Text"];
if (o == null)
return String.Empty;
return (string)o;
}
set
{
ViewState["Text"] = value;
}
}
public string Title11
{
get
{
object o = ViewState["Title"];
if (o == null)
return String.Empty;
return (string)o;
}
set
{
ViewState["Title"] = value;
}
}
protected override void CreateChildControls()
{
Controls.Clear();
CreateControlHierarchy();
ClearChildViewState();
}
protected virtual void CreateControlHierarchy()
{
TextBox t = new TextBox();
Label l = new Label();
t.Text = Text;
l.Text = Title11;
Controls.Add(l);
Controls.Add(t);
}
}
}
这是这样了，大家可以试试
摘要: 1. 打开新的窗口并传送参数：
传送参数：
response.write("＜script＞window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)＜/script＞")
接收参数：
string a = Request.QueryString("id");
string b = Request.QueryString("id1");
2.为按钮添加对话框
Button1.Attributes.Add("onclick","return confirm(’确认?’)");
button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
3.删除表格选定记录
int intEmpID = (int)MyDataGrid.Da
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