從foreach循環向asp：按鈕分配一個值CommandArgument

Question

文件後面的代碼創建員工列表，並且asp.net頁面循環顯示列表。 現在，我如何將employeedID分配給asp：button的commandArgument？

<%foreach(var employee in employeesList){%> 
    <tr> 
    <td><%=employee.firstName%></td> 
    <td><%=employee.lastName%></td> 
    /*How to access employee.Id in the commandArgument? */ 
    <td><asp:Button ID="btnDeleteEmployee" runat="server" CommandArgument='' Text="Delete" OnCommand="btnDeleteEmployee_Click" /></td> 
    </tr> 
<%}%> 

Answer 1

根據您的意見，這裏是一個嵌套的例子：

標記：

<asp:Repeater runat="server" ID="rptOutter" 
    onitemdatabound="rptOutter_ItemDataBound" > 
    <ItemTemplate> 
     <tr> 
      <td><%#Eval("firstName") %></td> 
      <td><%#Eval("lastName") %></td> 
      <td><asp:Button runat="server" ID="btnDeleteEmployee" CommandArgument='<%#Eval("Id") %>' Text="Delete" OnCommand="btnDeleteEmployee_Click" /></td> 
      <td> 
       <asp:Repeater runat="server" ID="rptInner" > 
        <ItemTemplate> 
         <table>         
          <tr> 
           <td><%#Eval("firstNameInner") %></td> 
           <td><%#Eval("lastNameInner") %></td> 
          </tr> 
         </table> 
        </ItemTemplate> 
       </asp:Repeater> 

      </td> 
     </tr> 
    </ItemTemplate> 
</asp:Repeater> 

CodeBehind：

protected void Page_Load(object sender, EventArgs e) 
{ 
    if (!Page.IsPostBack) 
    { 
     rptOutter.DataSource = outterDataSource; 
     rptOutter.DataBind(); 
    } 

} 

protected void rptOutter_ItemDataBound(object sender, RepeaterItemEventArgs e) 
{ 
    RepeaterItem item = e.Item; 
    if ((item.ItemType == ListItemType.Item) || 
     (item.ItemType == ListItemType.AlternatingItem)) 
    { 
     //get your datasource from parent repeater if needed 
     //cast to your datasource type 
     //DataSourceObject ds = (DataSourceObject)item.DataItem; 
     Repeater r = e.Item.FindControl("rptInner") as Repeater; 
     if (r != null) 
     { 
      r.DataSource = innerDataSource; 
      r.DataBind(); 
     } 
    } 

} 

Answer 2

<asp:Repeater runat="server" ID="rptEmployeeList"> 
    <ItemTemplate> 
     <tr> 
      <td><%#Eval("firstName") %></td> 
      <td><%#Eval("lastName") %></td> 
      <td><asp:Button runat="server" ID="btnDeleteEmployee" CommandArgument='<%#Eval("Id") %>' Text="Delete" OnCommand="btnDeleteEmployee_Click" /></td> 
     </tr> 
    </ItemTemplate> 
</asp:Repeater> 

，然後在代碼隱藏

if (!Page.IsPostBack) 
{ 
    rptEmployeeList.DataSource = employeeList; 
    rptEmployeeList.DataBind(); 
}