📄 datalist-load-template.aspx
字号:
<%@Page Language="C#" debug="true"%>
<%@Import Namespace="System.Data" %>
<%@Import Namespace="System.Data.OleDb" %>
<%@ Register TagPrefix="wrox" TagName="connect" Src="..\global\connect-strings.ascx" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><head>
<title>Loading Templates Dynamically with a DataList Control</title>
<style type="text/css">
body, td {font-family:Tahoma,Arial,sans-serif; font-size:10pt}
input {font-family:Tahoma,Arial,sans-serif; font-size:9pt}
.heading {font-family:Tahoma,Arial,sans-serif; font-size:14pt; font-weight:bold}
.subhead {font-family:Tahoma,Arial,sans-serif; font-size:12pt; font-weight:bold; padding-bottom:5px}
.cite {font-family:Tahoma,Arial,sans-serif; font-size:8pt}
</style></head>
<body bgcolor="#ffffff">
<span class="heading">Loading Templates Dynamically with a DataList Control</span><hr />
<!--------------------------------------------------------------------------->
<%-- insert connection string script --%>
<wrox:connect id="ctlConnectStrings" runat="server" />
<div id="outError" runat="server" />
<form runat="server">
Select your Template:
<ASP:DropDownList runat="server" id="TemplateList" AutoPostback="True">
<ASP:ListItem Value="default" Text="Default Colors" />
<ASP:ListItem Value="bright" Text="Bright Colors" />
<ASP:ListItem Value="dark" Text="Dark Colors" />
<ASP:ListItem Value="mono" Text="Black and White" />
</ASP:DropDownList>
</form>
<ASP:DataList id="MyDataList" runat="server"
BorderStyle="Solid"
BorderWidth=1
BorderColor="black"
Font-Name="Tahoma"
Font-Size="10pt" />
<p><ASP:Label id="lblFileNames" runat="server" /></p>
<!--------------------------------------------------------------------------->
<script language="C#" runat="server">
void Page_Load(Object sender, EventArgs e)
{
// get connection string from ..\global\connect-strings.ascx user control
string strConnect = ctlConnectStrings.OLEDBConnectionString;
// create a SQL statement to select some rows from the database
string strSelect = "SELECT * FROM BookList WHERE ISBN LIKE '%18610026%'";
// create a variable to hold an instance of a DataReader object
OleDbDataReader objDataReader;
try
{
// create a new Connection object using the connection string
OleDbConnection objConnect = new OleDbConnection(strConnect);
// open the connection to the database
objConnect.Open();
// create a new Command using the connection object and select statement
OleDbCommand objCommand = new OleDbCommand(strSelect, objConnect);
// execute the SQL statement against the command to get the DataReader
objDataReader = objCommand.ExecuteReader();
}
catch (Exception objError)
{
// display error details
outError.InnerHtml = "<b>* Error while accessing data</b>.<br />"
+ objError.Message + "<br />" + objError.Source + "<p />";
return; // and stop execution
}
// get the partial filename of the required templates
string strFileName;
if (Page.IsPostBack)
strFileName = TemplateList.SelectedItem.Value + ".ascx";
else
strFileName = "default.ascx";
// create the list of template filenames
string strHeadFile = "templates/head-" + strFileName;
string strItemFile = "templates/item-" + strFileName;
string strAltIFile = "templates/alt-" + strFileName;
string strFootFile = "templates/foot-" + strFileName;
// load the required template files
MyDataList.HeaderTemplate = Page.LoadTemplate(strHeadFile);
MyDataList.ItemTemplate = Page.LoadTemplate(strItemFile);
MyDataList.AlternatingItemTemplate = Page.LoadTemplate(strAltIFile);
MyDataList.FooterTemplate = Page.LoadTemplate(strFootFile);
// display the file names of the current templates
lblFileNames.Text = "<b>Loaded Templates from Disk:</b><br />"
+ strHeadFile + "<br />" + strItemFile + "<br />"
+ strAltIFile + "<br />" + strFootFile + "<br />";
// set the DataSource property of the DataList
MyDataList.DataSource = objDataReader;
// and bind the control to the data
MyDataList.DataBind();
}
</script>
<!--------------------------------------------------------------------------->
<!-- #include file="..\global\foot.inc" -->
</body>
</html>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -