我需要帮助对我的代码进行故障排除，无法删除行

Question

所以我现在遇到麻烦，在弹出模态后无法让我的程序删除一行。模态有效，但是当我单击“确定”按钮时，我要删除的行仍然存在并且未被删除。有关如何解决此问题的任何想法？

我试图切换一些代码，以查看是否有任何更改，但其他任何方法都无效。

删除模态

   <!--for Delete:-->
    <div id="DeleteModal" class="modal fade" role="dialog">
      <div class="modal-dialog">
        <!-- Modal content-->
        <div class="modal-content">
          <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal">&times;</button>
            <h4 class="modal-title">Delete User Account</h4>
          </div>
          <div class="modal-body">
              <asp:Label ID="lblDeleteID" runat="server" Text="" Visible="false"></asp:Label>
               Are you sure you want to delete this record?
          </div>
          <div class="modal-footer">
              <asp:Button ID="btnExecuteDelete" class="btn btn-default" runat="server" Text="OK" OnClick="btnExecuteDelete_Click"/>
              <asp:Button ID="btnCancelDelete" class="btn btn-default" runat="server" Text="Cancel" data-dismiss="modal"/>
          </div>
        </div>
      </div>
    </div>

GRIDVIEW

    <asp:GridView ID="gvGuest" runat="server" AutoGenerateColumns="False"
        OnPageIndexChanging="PageIndexChanging" AllowPaging="true" PageSize="5"
        DataKeyNames="GuestID">
        <Columns>

             <asp:TemplateField HeaderText="Guest ID">
                <ItemTemplate>
                    <asp:Label ID="lblGuestID" runat="server" Text='<%#Eval("GuestID")%>'></asp:Label>
                </ItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="First Name">
                <ItemTemplate>
                    <asp:Label ID="lblFirstName" runat="server" Text='<%#Eval("FirstName")%>'></asp:Label>
                </ItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Last Name">
                <ItemTemplate>
                    <asp:Label ID="lblLastName" runat="server" Text='<%#Eval("LastName")%>'></asp:Label>
                </ItemTemplate>
            </asp:TemplateField>

             <asp:TemplateField HeaderText="Phone">
                <ItemTemplate>
                    <asp:Label ID="lblPhone" runat="server" Text='<%#Eval("Phone")%>'></asp:Label>
                </ItemTemplate>
            </asp:TemplateField>
             <asp:TemplateField HeaderText ="">
                <ItemTemplate>
                    <asp:LinkButton ID="btnUpdate" runat="server" ForeColor="Blue" OnClick="btnUpdate_Click">Edit</asp:LinkButton>
                    <asp:LinkButton ID="btnDelete" runat="server" ForeColor="Red" OnClick="btnDelete_Click">Delete</asp:LinkButton>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>

删除CS代码

protected void btnExecuteDelete_Click(object sender, EventArgs e)
        {
            ScriptManager.RegisterStartupScript(Page, Page.GetType(), "myPrompt", "alert('Successfully Deleted Record!');", true);

        }

        protected void btnDelete_Click(object sender, EventArgs e)
        {
            clickedRow = ((LinkButton)sender).NamingContainer as GridViewRow;
            pk = ((Label)clickedRow.FindControl("lblGuestID")).Text;
            lblDeleteID.Text = pk.ToString();
            objBEL.GuestID = GuestID;
            objBLL.DeleteGuest(objBEL);
            ScriptManager.RegisterStartupScript(Page, Page.GetType(), "DeleteModal", "$('#DeleteModal').modal();", true);
            readGrid();
            objBEL = null;
            objBLL = null;
        }

BLL

        public void DeleteGuest(GuestBEL objBEL)
        {
            GuestDAL objDAL = new GuestDAL();
            objDAL.DeleteGuest(objBEL);
        }

DAL

       public void DeleteGuest(GuestBEL objBEL)
        {
            SqlCommand cmd = new SqlCommand("GuestDelete", con);
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.Parameters.AddWithValue("@GuestID", objBEL.GuestID);
            con.Open();
            cmd.ExecuteNonQuery();
            cmd.Dispose();
            con.Close();
        }

存储过程

CREATE PROCEDURE [dbo].[GuestDelete]
    @GuestID int
AS
    BEGIN 
        DELETE FROM Guest 
        WHERE GuestID=@GuestID
    END

因此对于模态，当我单击删除按钮时，模态会弹出，询问用户是否确定是否要删除记录，单击确定后，它将显示一条消息，说明记录已成功已删除。因此，当我运行代码时，模态没有问题，我遇到的唯一问题是它没有删除行。如果您可以帮助我解决问题，我将不胜感激：）