虽然很简单，但是很困扰我！

先看我的代码：这个是一个用户自定义控件，存成xxxx.ascx<%@ Control Language="C#" AutoEventWireup="true" CodeFile="DocList.ascx.cs" Inherits="DocList" %>
<script language="C#" runat="server">
    public string CutString(string str, int length)
    {
        str = str.Trim();
        string newString = "";
        if (str != "")
        {
            if (str.Length > length)
            {
                newString = str.Substring(0, length) + "…";
            }
            else
            {
                newString = str;
            }
        }
        return newString;
    }
</script><table>
    <tr>
        <td background="images.files/title_main.gif">
            &nbsp; &nbsp; &nbsp;
            <asp:Label ID="Label1" runat="server"></asp:Label></td>
    </tr>
    <tr>
        <td style=" height: 150px" align="left" valign="top">
            <span id="list" runat="server">
                <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" ShowHeader="False"
                    Height="120px"  DataSourceID="SqlDataSource1">
                    <Columns>
                        <asp:TemplateField>
                            <ItemTemplate>
                                <img src="images.files/article_common.gif" align="left"><font style="align: left"
                                    onmouseover="this.style.borderColor='#082d71'" onmouseout="this.style.borderColor='#082d71'"><a title="" href='DocShow.aspx?DocNo=<%#DataBinder.Eval(Container.DataItem, "DocNo")%>' class="class" target="_blank" ></font>
                                <%#CutString((DataBinder.Eval(Container.DataItem, "Subject")).ToString().Trim(),标注1)%>
                                </a>&nbsp; (作者:<font align="left" color="gray"><%#DataBinder.Eval(Container.DataItem, "Author")%></font>)
                                (<font align="left" color="gray"><%#DataBinder.Eval(Container.DataItem, "Chg_dt")%></font>
                                )
                            </ItemTemplate>
                        </asp:TemplateField>
                    </Columns>
                </asp:GridView>
            </span>
        </td>
    </tr>
    <tr>
        <td>
            <div align="right">
                <a class="class" href="default.aspx" style="font-size: 10pt; align: right" target="_blank">
                    更多&gt;&gt;&gt;</a></div>
        </td>
    </tr>
</table>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:webdocConnectionString %>"
    ProviderName="<%$ ConnectionStrings:webdocConnectionString.ProviderName %>"></asp:SqlDataSource>在标注1的地方应该是一个整型数值，但是我想把这个地方的这个整型数值配制成它的属性，在别的地方调用的时候可以随意配。怎么解决？？