Question

我有一个GridView。我在此GV中显示系统中的所有用户，我有一个按钮，通过将表中已删除的列更新为1来删除用户。

<asp:GridView ID="GridView1" AllowPaging="True" OnPageIndexChanging="GridView1_PageIndexChanging"
            PageSize="20" runat="server" OnRowCommand="GridView1_OnRowCommand"
            DataKeyNames="Id, Email" EnableViewState="false" AutoGenerateColumns="false">

            <Columns>
                <asp:TemplateField>
                    <ItemTemplate>
                        <asp:LinkButton ID="buttonDelete" runat="server" CommandName="Remove" Text="Delete"
                            CommandArgument='<%# Eval("Id") + ";" +Eval("Email")%>'
                            OnClientClick='return confirm("Are you sure you want to delete this user?");' />
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:BoundField DataField="FirstName" HeaderText="First Name" />
                <asp:BoundField DataField="LastName" HeaderText="Last Name" />
                <asp:BoundField DataField="Email" HeaderText="Email" />
                <asp:BoundField DataField="Status" HeaderText="Status" />
                <asp:BoundField DataField="Location" HeaderText="Location" />
            </Columns>
        </asp:GridView>

protected void GridView1_OnRowCommand(object sender, GridViewCommandEventArgs e)
{
    string cmdName = e.CommandName;
    string[] commandArgs = e.CommandArgument.ToString().Split(new char[] { ';' });
    string UserRowID = commandArgs[0];
    string Email = commandArgs[1];

    string sql = "UPDATE USERS " +
    "SET [Deleted]= 1" +
    "WHERE ROWID= " + UserRowID;

    DataTable table = PublicClass.ExeSql_Table(sql, "Utility");

    GridView1.DataBind();
}

当我点击删除时，它会更新数据库，但不会删除GV中的行。我需要刷新页面或单击两次以删除该行。我怎么能一键完成呢？

Answer 1

删除行时，请使用数据重新绑定网格。

Answer 2

您只需再次加载DataSource并将其绑定到GridView：

DataTable table = PublicClass.ExeSql_Table(sql, "Utility");
GridView1.DataSource = table; //  <-- you've forgotten this
GridView1.DataBind();

Answer 3

在linkbutton“buttonDelete”

中指定OnCommand字段

示例：

OnCommand = "Delete_Record"

在aspx.cs中编写以下代码

  protected void Delete_Record(object sender, CommandEventArgs e)
{
       GridView1.DataSource = table; 
       GridView1.DataBind();    
}

更新数据库后GridView不更新

3 个答案: