本文主谈如何让GridView控件自己也支持导出Excel和Word，这样做的目的就是方便我们的打印功能使实现了 。
首先增加了两个属性，用于指示是否支持Excel导出和Word导出  

         <PRE class=csharp name="code">//增加了一个设置是否显示“导出Word”按钮的属性   
        /**//// <summary>    
        /// 排序提示信息    
        /// </summary>  
 
        [    
        Description("显示导出到Word"),    
        Category("扩展"),    
         DefaultValue(true)    
        ]  
 
        public virtual bool ShowExportWord  
 
        {    
            get   
            {    
                object obj2 = this.ViewState["ShowExportWord"];    
                if (obj2 != null)    
                {    
                    return (bool)obj2;    
                }    
                return true;    
            }  
 
            set   
            {    
                bool aShowExportWord = this.ShowExportWord;    
                if (value != aShowExportWord)    
                {    
                    this.ViewState["ShowExportWord"] = value;    
                    if (base.Initialized)    
                    {    
                        base.RequiresDataBinding = true;   
                    }    
                }    
            }    
        }  
 
        //增加了一个设置是否显示“导出Excel”按钮的属性    
        [    
       Description("显示导出到Excel"),    
       Category("扩展"),    
       DefaultValue(true)  
 
       ]    
        public virtual bool ShowExportExcel    
        {    
            get   
            {    
                object obj2 = this.ViewState["ShowExportExcel"];    
                if (obj2 != null)    
                {    
                    return (bool)obj2;    
                }    
                return true;    
            }    
            set   
            {    
                bool aShowExportExcel = this.ShowExportExcel;  
                if (value != aShowExportExcel)  
 
                {    
                    this.ViewState["ShowExportExcel"] = value;  
 
                    if (base.Initialized)  
 
                    {    
                        base.RequiresDataBinding = true;   
                    }    
                }    
            }  
 
        }</PRE> 
声明两个LinkButton控件btnExportWord,btnExport，分别用于点击导出Excel和点击导出word,并在控件的OnInit事件中初始化两个控件
LinkButton btnExportWord;  
 
        LinkButton btnExport; protected override void OnInit(EventArgs e)    
        {    
            this.EnableViewState = true;  
            btnExport = new LinkButton();  
            btnExport.CommandName = "ExportToExcel";    
            btnExport.EnableViewState = true;    
            btnExport.Text = "导出Excel";    
            btnExportWord = new LinkButton();    
            btnExportWord.CommandName = "ExportToWord";    
            btnExportWord.EnableViewState = true;    
            btnExportWord.Text = "导出Word";  
 
 base.OnInit(e); 
将两个LinkButton添加到GridView子控件中。
protected override int CreateChildControls(System.Collections.IEnumerable dataSource, bool dataBinding) {    
            int res = base.CreateChildControls(dataSource, dataBinding);    
                try   
                {    
                    GridViewRow row = new GridViewRow(0, 0, DataControlRowType.Pager, DataControlRowState.Normal);  TableCell cell2 = new TableCell();    
                    cell2.HorizontalAlign = HorizontalAlign.Right;    
                    cell2.Wrap = false; if (this.ShowExportExcel == true)  
 
                    {    
                        l1 = new Literal();    
                        l1.Text = " [";    
                        cell2.Controls.Add(l1);    
                        cell2.Controls.Add(btnExport);    
                        l1 = new Literal();    
                        l1.Text = "] ";    
                        cell2.Controls.Add(l1);  
 
                    }    
                    if (this.ShowExportWord == true)    
                    {    
                        l1 = new Literal();    
                        l1.Text = " [";    
                        cell2.Controls.Add(l1);    
                        cell2.Controls.Add(btnExportWord);   
                        l1 = new Literal();    
                        l1.Text = "] ";    
                        cell2.Controls.Add(l1);   
                    } r.Cells.Add(cell2);    
                    this.Controls[0].Controls.AddAt(0, row);  
                }    
                catch   
                {   
                }    
            }    
            return res;    
        }