.net控件!

<%@ OutputCache Duration="60" VaryByParam="*"  %>
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="FormDataChangeA.ascx.cs" Inherits="_controls_FormDataChangeA" %>
<table border="0" cellpadding="0" cellspacing="0" style="width: 100%">
    <tr style="display:none;">
        <td colspan="2" style="background-image: url(_images/cate.gif); height: 24px; font-weight: bold; color: #cc0000; font-size: 9pt;" align="left">
            ┣    <asp:Label ID="lblFormName" runat="server"></asp:Label></td>
    </tr>
</table>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" BorderColor="#E0E0E0"
    BorderStyle="None" BorderWidth="1px" CellPadding="4" GridLines="None"
    ShowHeader="False" Width="100%" OnRowDataBound="GridView1_RowDataBound">
    <Columns>
   
        <asp:BoundField DataField="FormDataId" Visible="False" />
        <asp:TemplateField>
            <ItemTemplate>
              <img src="../_images/small.gif" width=5px height=5px ></img> 
                <asp:HyperLink ID="linkCaption" runat="server" NavigateUrl='<%# FormatLink()+"?id=" + Eval("FormDataId") %>'
                    Text='<%# Convert.ToString(Eval("Caption")) %>' ToolTip='<%# Eval("Caption") %>' Target="_blank"></asp:HyperLink>
                     <asp:Label ID="lbl" runat="server" Text='<%# Eval("PostedDate") %>' Visible="false"></asp:Label>
               <asp:Image ID="imageNew" runat="server" Visible="False"  />
            </ItemTemplate>
            <ItemStyle Font-Size="9pt" HorizontalAlign="Left" Width="80%" />
        </asp:TemplateField>
        <asp:BoundField DataField="PostedDate" DataFormatString="{0:yyyy-MM-dd}" HtmlEncode="False" Visible="False">
            <ItemStyle Font-Size="9pt" HorizontalAlign="Right" />
        </asp:BoundField>
    </Columns>
    <RowStyle BorderColor="#404040" BorderStyle="Dotted" BorderWidth="1px" />
</asp:GridView>
<asp:Label ID="Label1" runat="server" Font-Size="9pt" ForeColor="Silver" Height="160px"
    Text="暂无内容" Width="100%"></asp:Label>
<table border="0" cellpadding="0" cellspacing="0" style="width: 100%">
    <tr>
        <td align="right">
            <asp:HyperLink ID="linkMore" runat="server" Font-Size="9pt" Visible="False">更多</asp:HyperLink></td>
    </tr>
</table>

 

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 _controls_FormDataChangeA : System.Web.UI.UserControl
{
    public int FormId
    {
        set
        {
            ViewState["FormDataListControl_FormId"] = value;
        }
        get
        {
            return Convert.ToInt32(ViewState["FormDataListControl_FormId"]);
        }
    }

    public int Count
    {

        set
        {
            ViewState["FormDataListControl_Count"] = value;

        }
        get
        {
            return Convert.ToInt32(ViewState["FormDataListControl_Count"]);

        }
    }

    public int FontLength
    {
        set
        {
            ViewState["FormDataListControl_FontLength"] = value;
        }

        get
        {
            return Convert.ToInt32(ViewState["FormDataListControl_FontLength"]);
        }
    }



    public string LinkName
    {
        set
        {
            ViewState["FormDataListControl_linkName"] = value;
        }
        get
        {
            return Convert.ToString(ViewState["FormDataListControl_linkName"]);
        }
    }

    public int FormClass
    {
        set
        {
            ViewState["FormDataListControl_FormClass"] = value;
        }
        get
        {
            return Convert.ToInt32(ViewState["FormDataListControl_FormClass"]);
        }
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        try
        {
            if (!Page.IsPostBack)
                BindData();
        }
        catch (Exception exp)
        {
            Response.Redirect("Error.aspx");
        }
    }

    private void BindData()
    {
        int formId = Convert.ToInt32(ViewState["FormDataListControl_FormId"]);
        int count = Convert.ToInt32(ViewState["FormDataListControl_Count"]);
        int formClass = Convert.ToInt16(ViewState["FormDataListControl_FormClass"]);

        linkMore.NavigateUrl = "../ArticleList.aspx?id=" + formId;

        Junking.Publication.Form form = new Junking.Publication.Form();
        DataSet ds = form.Load(formId);
        if (ds.Tables[0].Rows.Count > 0)
        {
            lblFormName.Text = Convert.ToString(ds.Tables[0].Rows[0]["FormName"]);
        }

        Junking.Publication.FormData formData = new Junking.Publication.FormData();

        DataSet dsList = new DataSet();
        switch (formClass)
        {
            case 1:
                dsList = formData.LoadSub(formId, count); //选择formid,时间排列
                break;
            case 2:
                dsList = formData.LoadTop(formId, count);//选择parentid,时间排列
                break;
            case 3:
                dsList = formData.LoadListCount(formId, count); //选择parentid 和formid
                break;
            case 4:
                dsList = formData.LoadSub1(formId, count); //选择parentid,formdataid排列
                break;
            case 5:
                dsList = formData.LoadTop1(formId, count); //选择formid,formdataid排列
                break;
            case 6:
                dsList = formData.LoadListCount1(formId, count); //选择parentid 和formid,formdataid排列
                break;
            default:
                dsList = formData.LoadSub(formId, count);
                break;



        }

       


        if (dsList.Tables[0].Rows.Count > 0)
        {
            GridView1.DataSource = dsList.Tables[0];
            GridView1.DataBind();
            Label1.Visible = false;
        }
        else
        {
            GridView1.Visible = false;
            Label1.Visible = true;
        }
    }



    public string FormatLink()
    {
        return Convert.ToString(ViewState["FormDataListControl_linkName"]);
    }



    public string FormatString(string value, int length)
    {


        string r = String.Empty;
        if (value.Length > length)
            r = value.Substring(0, length) + "...";
        else
            r = value;
        return r;
    }
    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        int fontlength = Convert.ToInt32(ViewState["FormDataListControl_FontLength"]);
               if (e.Row.RowType == DataControlRowType.DataRow)
        {

            HyperLink hy = (HyperLink)e.Row.Cells[1].FindControl("linkCaption");
           
            Label lbl = (Label)e.Row.FindControl("lbl");
            Image image = (Image)e.Row.FindControl("imageNew");

            TimeSpan ts = new TimeSpan();
            ts = DateTime.Now - Convert.ToDateTime(lbl.Text);
            int daysCount = Convert.ToInt32(ts.Days.ToString());
            if (daysCount < 1)
            {
                image.Visible = true;
                image.ImageUrl = "../_images/n.gif";
                hy.Text = FormatString(hy.Text, fontlength-3);
            }
            else
            {
                hy.Text = FormatString(hy.Text, fontlength);
 
            }




        }

    }
}