locations_view.aspx

来自「Club Site Starter Kit.rar .net 压缩包解压时不能」· ASPX 代码 · 共 214 行

<%@ Page Language="C#" MasterPageFile="~/Default.master" Title="Untitled Page" %>

<%@ Register TagPrefix="Club" Namespace="ClubSite" %>
<%@ Register TagPrefix="Club" TagName="LoginBanner" Src="LoginBanner.ascx" %>
<%@ Register TagPrefix="Club" TagName="ImageThumbnail" Src="ImageThumbnail.ascx" %>

<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<script runat="server">

    private int nextLocationID;
    private int prevLocationID;
    const int INVALIDID = -1;

    protected void Page_Load(object sender, EventArgs e)
    {
        SqlDataSource1.SelectParameters["id"].DefaultValue = Convert.ToString(LocationID);
    }

    protected void nextButton_Click(object sender, EventArgs e)
    {
        InitValsFromSql(LocationID);
        if (nextLocationID != INVALIDID)
        {
            prevLocationID = LocationID;
            LocationID = nextLocationID;
            SqlDataSource1.SelectParameters["id"].DefaultValue = Convert.ToString(nextLocationID);
        }
        ToggleLinks();
    }

    protected void prevButton_Click(object sender, System.EventArgs e)
    {
        InitValsFromSql(LocationID);
        if (prevLocationID != INVALIDID)
        {
            nextLocationID = LocationID;
            LocationID = prevLocationID;
            SqlDataSource1.SelectParameters["id"].DefaultValue = Convert.ToString(prevLocationID);
        }
        ToggleLinks();
    }

    void ToggleLinks()
    {
        LinkButton1.Enabled = (nextLocationID != INVALIDID);
        LinkButton3.Enabled = (nextLocationID != INVALIDID);
        LinkButton2.Enabled = (prevLocationID != INVALIDID);
        LinkButton4.Enabled = (prevLocationID != INVALIDID);
    }

    int LocationID
    {
        get
        {
            int m_LocationID;
            object id = ViewState["LocationID"];
            if (id != null)
            {
                m_LocationID = (int)id;
            }
            else
            {
                id = Request.QueryString["LocationID"];
                if (id != null)
                {
                    m_LocationID = Convert.ToInt32(id);
                }
                else
                {
                    m_LocationID = 1;
                }
                ViewState["LocationID"] = m_LocationID;
            }
            return m_LocationID;
        }
        set
        {
            ViewState["LocationID"] = value;
        }
    }

    void InitValsFromSql(int LocationID)
    {
        try
        {
            SqlConnection connection = new SqlConnection(ConfigurationManager.ConnectionStrings["ClubSiteDB"].ConnectionString);
            SqlCommand command = new SqlCommand("dbo.NextPrevLocation", connection);
            
            SqlParameter param0 = new SqlParameter("@id", LocationID);
            SqlParameter param1 = new SqlParameter("@previd", INVALIDID);
            SqlParameter param2 = new SqlParameter("@nextid", INVALIDID);
            
            param1.Direction = ParameterDirection.InputOutput;
            param2.Direction = ParameterDirection.InputOutput;
            
            command.Parameters.Add(param0);
            command.Parameters.Add(param1);
            command.Parameters.Add(param2);
            
            command.CommandType = CommandType.StoredProcedure;
            connection.Open();
            command.ExecuteNonQuery();
            
            if (param1.Value != null && param1.Value !=DBNull.Value)
            {
                prevLocationID = Convert.ToInt32(param1.Value);
            }
            else
            {
                prevLocationID = INVALIDID;
            }
            if (param2.Value != null && param2.Value !=DBNull.Value)
            {
                nextLocationID = Convert.ToInt32(param2.Value);
            }
            else
            {
                nextLocationID = INVALIDID;
            }
            connection.Close();
        }
        catch
        {
            prevLocationID = INVALIDID;
            nextLocationID = INVALIDID;
        }
    }    
</script>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ClubSiteDB %>"
        SelectCommand="SELECT id, title, description, photo, linkurl, directions, address FROM locations WHERE (id = @id)">
        <SelectParameters>
            <asp:Parameter Type="Int32" DefaultValue="1" Name="id"></asp:Parameter>
        </SelectParameters>
    </asp:SqlDataSource>
    <div id="body">
        <Club:LoginBanner ID="LoginBanner1" runat="server" />
        <!--
        
        Left column
        
        -->
        <div id="columnleft">
            <a name="content_start" id="content_start"></a>
            <div class="leftblock">
                <h2>
                    Locations</h2>
                <p>
                    Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh
                    euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad
                    minim veniam, quis nostrud exercitation ulliam corper suscipit lobortis nisl ut
                    aliquip ex ea commodo consequat. Duis autem veleum iriure dolor in hendrerit in
                    vulputate velit esse molestie consequat, vel willum lunombro dolore eu feugiat nulla
                    facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent
                    luptatum zzril delenit augue duis dolore te feugait nulla facilisi.</p>
            </div>
        </div>
        <!--
        
        Right column
        
        -->
        <div id="columnright">
            <div class="rightblock">
                <a href="Locations_list.aspx">Locations List</a></div>
            <div class="rightblock">
                <div class="nextlink">
                    <asp:LinkButton ID="LinkButton1" runat="server" OnClick="nextButton_Click">Next Location &raquo;</asp:LinkButton>
                </div>
                <asp:LinkButton ID="LinkButton2" runat="server" OnClick="prevButton_Click">&laquo; Previous Location</asp:LinkButton>
                <div class="dashedline">
                </div>
                <asp:FormView ID="FormView1" runat="server" DataSourceID="SqlDataSource1" DataKeyNames="id"
                    Width="444px">
                    <ItemTemplate>
                        <h2>
                            <asp:Label Text='<%# Eval("title") %>' runat="server" ID="titleLabel" />
                        </h2>
                        <div class="itemdetails">
                            <p>
                                <asp:HyperLink Text='<%# Eval("linkurl") %>' NavigateUrl='<%# Eval("linkurl") %>'
                                    runat="server" ID="Label1" />
                            </p>
                            <p>
                                <asp:Label Text='<%# Eval("address") %>' runat="server" ID="addressLabel" />
                            </p>
                        </div>
                        <Club:ImageThumbnail ID="thumb1" runat="server" ImageSize="Large" PhotoID='<%# Eval("photo") %>' />
                        <p>
                            <asp:Label Text='<%# Eval("description") %>' runat="server" ID="descriptionLabel" />
                        </p>
                        <p>
                            <asp:Label Text='<%# Eval("directions") %>' runat="server" ID="Label2" />
                        </p>
                        <asp:Panel runat="server" ID="panel1" CssClass="actionbuttons" Visible='<%# User.IsInRole("Administrators") %>'>
                            <Club:RolloverLink ID="editbtn" runat="server" Text="Edit Location" NavigateURL='<%# "Locations_edit.aspx?LocationID=" + Convert.ToString(LocationID)%>' />
                        </asp:Panel>
                    </ItemTemplate>
                </asp:FormView>
                <div class="dashedline">
                </div>
                <div class="nextlink">
                    <asp:LinkButton ID="LinkButton3" runat="server" OnClick="nextButton_Click">Next Location &raquo;</asp:LinkButton>
                </div>
                <asp:LinkButton ID="LinkButton4" runat="server" OnClick="prevButton_Click">&laquo; Previous Location</asp:LinkButton>
            </div>
        </div>
        <div class="clear2column">
        </div>
    </div>
</asp:Content>