asp.net开发中经常用到的方法

2019-11-14 14:20:24

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来源：转载

供稿：网友

---天气插件---

---后台调用js---

ClientScript.RegisterStartupScript(ClientScript.GetType(), "myscript", "<script>alert1();</script>");

---客户端弹出确认框---
OnClientClick="return confirm('您确认删除该记录吗?');"

---日历插件---

my97datepicker

---webconfig连接字符串---

</connectionStrings>
<add key="ConnectionString" value="server=.;database=Board;uid=B;pwd=sa"/>

---dropdownlist进行操作---

DataSet ds = Operation.GetDataSet("SELECT DepartmentId,DepartmentName FROM dbo.tabP_Department");

ddlDepartment.DataValueField = "DepartmentId";

ddlDepartment.DataTextField = "DepartmentName";

ddlDepartment.DataSource = ds;

ddlDepartment.DataBind();

ddlDepartment.Items.Insert(0,new ListItem("请选择发布部门","0"));

---服务器伪静态添加---
脚本映射，要把.html文件映射到 asp.net处理程序上

---设置textbox不可写只能选---
加入onfocus="this.blur()"

---框架布局---

---js关键判断---

if (document.getElementById("registerdate").value == "") {
alert("登记日期不能为空！");
document.getElementById("registerdate").focus();
return (false);
}

</script>

----验证码关键前台代码---

<head runat="server">
<title></title>
<script type="text/javascript">
function ChangeCode() {

var date = new Date();
var myImg = document.getElementById("ImageCheck");
var GUID = document.getElementById("lblGUID");

myImg.src = "../ValidateCode.aspx?GUID=" + GUID.innerHTML + "&flag=" + date.getMilliseconds()

return false;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
验证码：
<input class="nemo01" id="CheckCode" tabindex="3" maxlength="22" size="11" name="user"
runat="server">
<a id="A2" href="" onclick="ChangeCode();return false;">
<asp:Image ID="ImageCheck" runat="server" ImageUrl="../ValidateCode.aspx?GUID=GUID"
ImageAlign="AbsMiddle" ToolTip="看不清，换一个"></asp:Image></a>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
<asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
</div>
</form>
</body>
</html>