控制GridView中字段的长度，规范数据

前台：

 

       <asp:GridView ID="GridView1" runat="server" OnRowDataBound="GridView1_RowDataBound">
            <Columns>
                <asp:TemplateField>
                    <HeaderTemplate>
                        <input id="cb_head" type="checkbox" name="cb_head" onclick="SelectAll(this,<%=GridView1.ClientID %>);" />
                    </HeaderTemplate>
                    <ItemTemplate>
                        <asp:CheckBox ID="ChkChild1" runat="server" />
                    </ItemTemplate>
                    <ItemStyle HorizontalAlign="Center" />
                    <FooterStyle HorizontalAlign="Center" />
                </asp:TemplateField>
            </Columns>
        </asp:GridView>

后台：

    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        //在RowDataBound事件中调下面的方法
        int[] cellIndexs = new int[4];
 
        this.setGridViewInfo(e,1, cellIndexs, 11);
    }
 
    #region
    /// <summary>
    /// 控制GridView中显示字符串的长度 并 在ToolTip中显示全部文本
    /// </summary>
    /// <param name="e">GridViewRowEventArgs e</param>
    /// <param name="cellIndexs">GridView中显示单元格的个数</param>
    /// <param name="maxStrLength">要显示的最大字符串长度</param>
    private void setGridViewInfo(System.Web.UI.WebControls.GridViewRowEventArgs e,int stata_index, int[] cellIndexs, int maxStrLength)
    {
        string CellText = string.Empty;
 
        //因为我的GridView前一列是CheckBox，所以i从1开始
        for (int i = stata_index; i < cellIndexs.Length; i++)
        {
            CellText = e.Row.Cells[i].Text.Trim();
 
            if (CellText.Length > maxStrLength)
            {
                e.Row.Cells[i].Text = CellText.Substring(0, maxStrLength - 1) + " <strong style='Color:blue' mce_style='Color:blue'> ... </strong>";
 
                e.Row.Cells[i].ToolTip = CellText;
            }
        }
    }
    #endregion