ASP.NET Tutorial/Data Binding/HyperLinkField — различия между версиями

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Текущая версия на 11:58, 26 мая 2010

Adding a HyperlinkField control to the GridView

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:GridView ID="GridView1" Runat="server" DataSourceID="SqlDataSource1"
             DataKeyNames="CustomerID" AutoGenerateColumns="False"
             AllowSorting="True" AllowPaging="True" PageSize="10">
             <PagerStyle HorizontalAlign="Center"></PagerStyle>
             <PagerSettings Position="TopAndBottom" 
                  FirstPageText="Go to the first page" 
                  LastPageText="Go to the last page" Mode="NextPreviousFirstLast">
             </PagerSettings>
            <Columns>
                <asp:BoundField ReadOnly="True" HeaderText="CustomerID"
                     DataField="CustomerID"
                     SortExpression="CustomerID"></asp:BoundField>
                <asp:HyperLinkField HeaderText="CompanyName"
                    DataNavigateUrlFields="CustomerID,Country" SortExpression="CompanyName"
                    DataNavigateUrlFormatString=
                        "http://www.foo.ru/Customer.aspx?id={0}&country={1}"
                    DataTextField="CompanyName">
                </asp:HyperLinkField>
                <asp:BoundField HeaderText="ContactName" DataField="ContactName"
                     SortExpression="ContactName"></asp:BoundField>
                <asp:BoundField HeaderText="ContactTitle" DataField="ContactTitle"
                     SortExpression="ContactTitle"></asp:BoundField>
                <asp:BoundField HeaderText="Address" DataField="Address"
                     SortExpression="Address"></asp:BoundField>
                <asp:BoundField HeaderText="City" DataField="City"
                     SortExpression="City"></asp:BoundField>
                <asp:BoundField HeaderText="Region" NullDisplayText="N/A"
                     DataField="Region" SortExpression="Region"></asp:BoundField>
                <asp:BoundField HeaderText="PostalCode" DataField="PostalCode"
                     SortExpression="PostalCode"></asp:BoundField>
                <asp:BoundField HeaderText="Country" DataField="Country" 
                     SortExpression="Country"></asp:BoundField>
                <asp:BoundField HeaderText="Phone" DataField="Phone" 
                     SortExpression="Phone"></asp:BoundField>
                <asp:BoundField HeaderText="Fax" DataField="Fax" 
                     SortExpression="Fax"></asp:BoundField>
            </Columns>
        </asp:GridView>
        <asp:SqlDataSource ID="SqlDataSource1" Runat="server"
            SelectCommand="SELECT * FROM [Customers]" 
            ConnectionString="<%$ ConnectionStrings:AppConnectionString1 %>"
            DataSourceMode="DataSet"
            ConflictDetection="CompareAllValues" EnableCaching="True"
            CacheKeyDependency="MyKey" CacheDuration="Infinite">
        </asp:SqlDataSource> 
    </div>
    </form>
</body>
</html>

File: Web.config
<configuration>
  <appSettings/>
  <connectionStrings>
        <add name="AppConnectionString1" 
             connectionString="Data Source=localhost\SQLEXPRESS;Initial Catalog=Northwind;Integrated Security=True"
             providerName="System.Data.SqlClient" />
    </connectionStrings>
  <system.web>
    <compilation debug="true" strict="false" explicit="true">
      <codeSubDirectories>
        <add directoryName="VB"></add>
        <add directoryName="CS"></add>
      </codeSubDirectories>
    </compilation>
    <pages>
      <namespaces>
        <clear/>
        <add namespace="System"/>
        <add namespace="System.Collections"/>
        <add namespace="System.Collections.Specialized"/>
        <add namespace="System.Configuration"/>
        <add namespace="System.Text"/>
        <add namespace="System.Text.RegularExpressions"/>
        <add namespace="System.Web"/>
        <add namespace="System.Web.Caching"/>
        <add namespace="System.Web.SessionState"/>
        <add namespace="System.Web.Security"/>
        <add namespace="System.Web.Profile"/>
        <add namespace="System.Web.UI"/>
        <add namespace="System.Web.UI.WebControls"/>
        <add namespace="System.Web.UI.WebControls.WebParts"/>
        <add namespace="System.Web.UI.HtmlControls"/>
      </namespaces>
    </pages>
    <authentication mode="Windows"></authentication>
    <identity impersonate="true"/>
  </system.web>
</configuration>


Use a HyperLinkField to create a link to another page

A HyperLinkField is useful when you need to build two page Master/Detail forms.
File: Master.aspx
<%@ Page Language="C#" %>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Master</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:GridView
        id="grdProductCategories"
        DataSourceID="srcProductCategories"
        AutoGenerateColumns="false"
        Runat="server">
        <Columns>
        <asp:HyperLinkField
            HeaderText="Product Categories"
            DataTextField="Name"
            DataNavigateUrlFields="Id"
            DataNavigateUrlFormatString="Details.aspx?id={0}" />
        </Columns>
    </asp:GridView>
    <asp:SqlDataSource
        id="srcProductCategories"
        ConnectionString="<%$ ConnectionStrings:Products %>"
        SelectCommand="SELECT Id, Name FROM ProductCategories"
        Runat="server" />
    </div>
    </form>
</body>
</html>
            
File: Details.aspx
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
  "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Details</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:GridView
        id="grdProducts"
        DataSourceID="srcProducts"
        Runat="server" />
    <asp:SqlDataSource
        id="srcProducts"
        ConnectionString="<%$ ConnectionStrings:Products %>"
        SelectCommand="SELECT Title,Director FROM Products
            WHERE CategoryId=@CategoryId"
        Runat="server">
        <SelectParameters>
        <asp:QueryStringParameter
            Name="CategoryId"
            QueryStringField="id" />
        </SelectParameters>
    </asp:SqlDataSource>
    </div>
    </form>
</body>
</html>

File: Web.config
<configuration>
  <connectionStrings>
    <add name="Products" 
         connectionString="Data Source=.\SQLEXPRESS;
         AttachDbFilename=|DataDirectory|MyDatabase.mdf;Integrated Security=True;User Instance=True" />
  </connectionStrings>
</configuration>


Use HyperLinkFields when working with frames

<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <style type="text/css">
        html
        {
            background-color:silver;
        }
        .content
        {
            width:500px;
            margin:auto;
            background-color:white;
        }
        .column
        {
            padding:10px;
            float:left;
        }
        #FrameDetails
        {
            width:100%;
            height:400px;
        }
    </style>
    <title>Frame Master</title>
</head>
<body>
    <form id="form1" runat="server">
    <div class="content">
    <div class="column">
    <asp:GridView
        id="grdProducts"
        DataSourceID="srcProducts"
        AutoGenerateColumns="false"
        Runat="server">
        <Columns>
        <asp:HyperLinkField
            HeaderText="Products"
            DataTextField="Title"
            DataNavigateUrlFields="Id"
            DataNavigateUrlFormatString="FrameDetails.aspx?id={0}"
            Target="FrameDetails" />
        </Columns>
    </asp:GridView>
    <asp:SqlDataSource
        id="srcProducts"
        ConnectionString="<%$ ConnectionStrings:Products %>"
        SelectCommand="SELECT * FROM Products"
        Runat="server" />
    </div>
    <div class="column">
    <iframe name="FrameDetails" id="FrameDetails"></iframe>
    </div>
    <br style="clear:both" />
    </div>
    </form>
</body>
</html>
File: FrameDetails.aspx
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Frame Details</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:DetailsView
        id="dtlProduct"
        DataSourceID="srcProductDetails"
        Runat="server" />
    <asp:SqlDataSource
        id="srcProductDetails"
        ConnectionString="<%$ ConnectionStrings:Products %>"
        SelectCommand="SELECT Title, Director, InTheaters
            FROM Products WHERE Id=@ProductId"
        Runat="server">
        <SelectParameters>
        <asp:QueryStringParameter
            Name="ProductId"
            QueryStringField="id" />
        </SelectParameters>
    </asp:SqlDataSource>
    </div>
    </form>
</body>
</html>

File: Web.config
<configuration>
  <connectionStrings>
    <add name="Products" 
         connectionString="Data Source=.\SQLEXPRESS;
         AttachDbFilename=|DataDirectory|MyDatabase.mdf;Integrated Security=True;User Instance=True" />
  </connectionStrings>
</configuration>
Источник — «http://nfex.ru/index.php?title=ASP.NET_Tutorial/Data_Binding/HyperLinkField&oldid=3130»