.net字段显示过长用...代替

比如说绑定gridview某个字段过长，用。。。显示，然后鼠标放上去显示全部内容。

HTML代码：这时gridview用lable绑定。 ToolTip 是显示鼠标移上去的内容。

<asp:GridView ID="grv" runat="server" DataKeyNames="zcbm" CssClass="dataTableStyle"
                        ForeColor="#333333" CellPadding="3" CellSpacing="1" GridLines="None" AutoGenerateColumns="False">
                        <Columns>
                            <asp:BoundField DataField="zcbm" HeaderText="资产编码">
                                <HeaderStyle Wrap="False" />
                                <ItemStyle Wrap="False" />
                            </asp:BoundField>
                            <asp:TemplateField HeaderText="资产名称">
                                <ItemTemplate>
                                    <asp:Label ID="Label5" runat="server" ToolTip='<%# Bind("ZCMC") %>' Text='<%# ycwz(Eval("ZCMC")) %>'></asp:Label>
                                </ItemTemplate>
                                <HeaderStyle Wrap="False" />
                                <ItemStyle Wrap="False" />
                            </asp:TemplateField>
                        </Columns>
                        <PagerSettings Visible="False"></PagerSettings>
                        <RowStyle BackColor="White" HorizontalAlign="Left" />
                        <FooterStyle BackColor="#7799CC" Font-Bold="True" ForeColor="White" />
                        <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
                        <HeaderStyle Font-Size="Large" BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
                        <AlternatingRowStyle BackColor="White" />
                    </asp:GridView>
    

 

后台：

public partial class wsw_测试_文本过大点点显示 : System.Web.UI.Page
{   
     CX.DBGetResult dbgr = new CX.DBGetResult(CX.AppInfo.DBMS, CX.AppInfo.ConStr);
    protected void Page_Load(object sender, EventArgs e)
    {
        string sql="select * from zc_pdsj ";
        DataTable dt1 = this.dbgr.GetDataTable(sql);
        grv.DataSource = dt1;
        grv.DataBind();
    }
    public string ycwz(object tex)
    {
        if (tex.ToString().Length > 4)
        {
            return tex.ToString().Substring(0, 3) + "...";
        }
        else
        {
            return tex.ToString();
        }
    }
}