渲染GridView項目文本

以下是渲染柵格項（單元格）失敗嘗試的腳本。想法是處理輸入值並將其返回給單元格渲染。渲染GridView項目文本

ASP

<asp:GridView ID="GridView_stations" runat="server" AutoGenerateColumns="False" 
    DataSourceID="mailreport" AllowSorting="True" Width="100%" AllowPaging="True"> 
    <Columns> 
     <asp:BoundField DataField="id" HeaderText="ID" SortExpression="id" > 
     <HeaderStyle HorizontalAlign="Center" Width="70px" /> 
     <ItemStyle HorizontalAlign="Center" /> 
     </asp:BoundField> 
     <asp:BoundField DataField="name" ItemStyle-CssClass="padding-left" HeaderText="Name" SortExpression="name" > 
       <HeaderStyle CssClass="padding-left" HorizontalAlign="Left" /> 
       <ItemStyle CssClass="padding-left"></ItemStyle> 
     </asp:BoundField> 
     <asp:TemplateField> 
      <ItemTemplate> 
       <asp:Button runat="server" Text='<%#renderthis(Eval("id"))%>' CommandArgument='<%#Eval("id")%>' OnClick="DoRedirect" /> 
      </ItemTemplate> 
     </asp:TemplateField> 
     <asp:BoundField DataField="description" ItemStyle-CssClass="padding-left" HeaderText="Description" 
      SortExpression="description" > 
     <HeaderStyle CssClass="padding-left" HorizontalAlign="Left" /> 

<ItemStyle CssClass="padding-left"></ItemStyle> 
     </asp:BoundField> 
     <asp:BoundField DataField="name" HeaderText="Last report" 
      SortExpression="name" > 
     <HeaderStyle HorizontalAlign="Center" Width="120px" /> 
     <ItemStyle HorizontalAlign="Center" /> 
     </asp:BoundField> 
     <asp:BoundField DataField="name" HeaderText="Status" SortExpression="name" > 
     <HeaderStyle HorizontalAlign="Center" Width="100px" /> 
     <ItemStyle HorizontalAlign="Center" /> 
     </asp:BoundField> 
    </Columns> 
</asp:GridView>

C＃

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Web; 
using System.Web.UI; 
using System.Web.UI.WebControls; 

namespace MailReport 
{ 
    public partial class WebForm1 : System.Web.UI.Page 
    { 
     protected void Page_Load(object sender, EventArgs e) 
     { 

     } 
     protected string renderthis(string sender) 
     { 
      string str = sender.ToString()+"-str"; 
      return str; 
     } 
     protected void DoRedirect(object sender, EventArgs e) 
     { 
      Button theButton = sender as Button; 
      Response.Redirect("Newpage.aspx?ID=" + theButton.CommandArgument); 
     } 
    } 
}

錯誤：

Compilation Error 

    Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately. 

    Compiler Error Message: CS1502: The best overloaded method match for 'MailReport.WebForm1.renderthis(string)' has some invalid arguments 

    Source Error: 
    Line 25: <asp:Button runat="server" ** 

Text='<%#renderthis(Eval("id"))%>'** CommandArgument='<%#Eval("id")%>' OnClick="DoRedirect" />

請你能幫助我理解這個錯誤以及如何繼續。

來源

2013-02-14 enloz

改變此功能

從

protected string renderthis(string sender) 
{ 
    string str = sender.ToString()+"-str"; 
    return str; 
}

到

protected string renderthis(object sender) 
{ 
    if(sender!=null) 
    { 
     string str = sender.ToString()+"-str"; 
     return str; 
    } 
    return ""; 
}

來源

2013-02-14 05:15:10

渲染GridView項目文本

回答

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