GridView删除事件不拾起gridview数据

这是很简单，但我只是不明白我做错了什么。任何人都可以发现问题吗？删除在gridview中不起作用。删除事件触发但数据未被拾取。这是代码。GridView删除事件不拾起gridview数据

<asp:GridView ID="gvAdmins" runat="server" DataKeyField="UserId" Width="200px" DataSourceID="odsAdministratiors" 
    AutoGenerateColumns="false" AllowPaging="true" AllowSorting="true" PageSize="5" GridLines="None" 
    CellPadding="2" RowStyle-CssClass="gridview" AlternatingRowStyle-CssClass="altbgcolor" 
    OnRowDeleting="gvAdmins_OnDeleting" > 
    <Columns> 
     <asp:BoundField DataField="UserId" HeaderText="UserId" ReadOnly="True" Visible="false" /> 
     <asp:BoundField DataField="RoleId" HeaderText="RoleId" ReadOnly="True" Visible="false" />             
     <asp:BoundField DataField="Email" HeaderText="Email" ReadOnly="True" Visible="false" />             
     <asp:BoundField DataField="altemail" HeaderText="altemail" ReadOnly="True" Visible="false" /> 
     <asp:TemplateField > 
      <ItemTemplate> 
      <asp:Label ID="lblFnane" runat="server" Text='<%# Bind("firstname") %>' /> 
      <asp:Label ID="lblLname" runat="server" Text='<%# Bind("lastname")%>' /> 
      </ItemTemplate> 
      <AlternatingItemTemplate>             
      <asp:Label ID="lblFnane" runat="server" Text='<%# Bind("firstname") %>' /> 
      <asp:Label ID="lblLname" runat="server" Text='<%# Bind("lastname")%>' /> 
      </AlternatingItemTemplate> 
     </asp:TemplateField> 
     <asp:CommandField ShowDeleteButton="true" /> 
    </Columns> 
</asp:GridView>

这里是ODS：

<asp:ObjectDataSource ID="odsAdministratiors" runat="server" 
    DeleteMethod="RemoveUsersFromRoles" InsertMethod="AddUserToRolesGroup" 
    OldValuesParameterFormatString="{0}" SelectMethod="GetAdmins" 
    TypeName="ManageAdminRoles" UpdateMethod="AddUserToRolesGroup" > 
    <DeleteParameters> 
     <asp:Parameter Name="firstname" Type="String" /> 
     <asp:Parameter Name="lastname" Type="String" /> 
     <asp:Parameter Name="Email" Type="String" /> 
     <asp:Parameter Name="altemail" Type="String" /> 
     <asp:Parameter Name="UserId" DbType="Guid" /> 
     <asp:Parameter Name="RoleId" DbType="Guid" /> 
     <asp:Parameter Name="RoleName" Type="String" /> 
    </DeleteParameters> 
    <InsertParameters> 
     <asp:Parameter Name="firstname" Type="String" /> 
     <asp:Parameter Name="lastname" Type="String" /> 
     <asp:Parameter Name="Email" Type="String" /> 
     <asp:Parameter Name="altemail" Type="String" /> 
     <asp:Parameter Name="UserId" DbType="Guid" /> 
     <asp:Parameter Name="RoleId" DbType="Guid" /> 
     <asp:Parameter Name="RoleName" Type="String" /> 
    </InsertParameters> 
    <UpdateParameters> 
     <asp:Parameter Name="firstname" Type="String" /> 
     <asp:Parameter Name="lastname" Type="String" /> 
     <asp:Parameter Name="Email" Type="String" /> 
     <asp:Parameter Name="altemail" Type="String" /> 
     <asp:Parameter DbType="Guid" Name="UserId" /> 
     <asp:Parameter DbType="Guid" Name="RoleId" /> 
     <asp:Parameter Name="RoleName" Type="String" /> 
    </UpdateParameters> 
</asp:ObjectDataSource>

而且BLL方法：

private Get_Site_Admins_TableAdapter _Adapter = null; 
protected Get_Site_Admins_TableAdapter Adapter 
{ 
    get 
    { 
     if (_Adapter == null) 
      _Adapter = new Get_Site_Admins_TableAdapter(); 
     return _Adapter; 
    } 
} 

[System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Update, true)] 
public dsManageAdminRoles.Get_Site_AdminsDataTable GetAdmins()  
{ 
    try 
    { 
     return Adapter.GetAdminUsers(); 
    } 
    catch (Exception ex) { throw ex; } 
} 


[System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Update, true)] 
public bool RemoveUsersFromRoles(string firstname,string lastname,string Email,string altemail,Guid UserId,Guid RoleId,string RoleName) 
{ 
    int rowsAffected = Adapter.Delete(firstname,lastname,Email,altemail,UserId,RoleId,RoleName); 

    try 
    { 
     return rowsAffected == 1; 
    } 
    catch (Exception ex) { throw ex; } 
} 

[System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Update, true)] 
public bool AddUserToRolesGroup(string firstname, string lastname, string Email, string altemail, Guid UserId, Guid RoleId, string RoleName) 
{ 
    int rowsAffected = Adapter.Insert(firstname, lastname, Email, altemail, UserId, RoleId, RoleName); 

    try 
    { 
     return rowsAffected == 1; 
    } 
    catch (Exception ex) { throw ex; } 
}

感谢您的HELLP。

Risho

来源

2011-12-26 Risho

你能删除的事件添加到数据源，看看deleteparameters是什么？ – 2011-12-26 21:14:26

@Paul：删除事件方法称为RemoveUsersFromRoles。在调试模式下，它会触发，但变量为空。 – Risho 2011-12-26 21:19:21

我也做了一个更正，它用来声明“.Update”，但它被纠正为Delete：[System.ComponentModel.DataObjectMethodAttribute（System.ComponentModel.DataObjectMethodType.Delete，true）] – Risho 2011-12-26 21:20:44

是跳出来的第一件事就是一些你的GridView列是可见=“假”，即有效地消除了数据从列绑定。通过将可见性更改为true来测试，看看是否有帮助。您可以使用样式“display：none;”隐藏列但仍然有数据绑定。

其次，我的代码中没有看到任何“gvAdmins_OnDeleting”事件。它存在吗？

HTH

戴夫

来源

2011-12-27 03:08:50 Dave

GridView删除事件不拾起gridview数据

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