Question

我有一个带有通知图标的母版页，它返回sql查询计数中的数字。我无法在页面加载时更改文本，只是保持在“7”。如何在pageload上更改该文本？以下是我的代码

 <li>
<table border="0" align="left" cellpadding="7" cellspacing="7" 
style="margin-top:20px;" ><tr>
 <td class="auto-style1">

 <div id="noti_Container">
 <asp:HyperLink ID="HyperLink1" runat="server" 
 NavigateUrl="../manage2.aspx"><i class="fa fa-envelope-o fa-fw"></i>
</asp:HyperLink>
<div class="noti_bubble"><asp:Label ID="Notifyme" runat="server"  Text="7"/> 
</asp:Label> </div>
</div>
</td>
<td class="auto-style1">
</li>

以下是Code Behind：

       SqlConnection CON = new SqlConnection(Testdb);
            {
                CON.Open();
                string ShiftTime = "SELECT count(discard) as alert FROM [Rejected].[dbo].[InQuestion] where discard = '0'";
                SqlCommand ShiftTimecalculate = new SqlCommand(ShiftTime, CON);
                SqlDataReader readershifttime = 
                ShiftTimecalculate.ExecuteReader();
                readershifttime.Read();
                if(readershifttime.hasrows)

      {
      Label noti_bubble = noti_Container.FindControl("Notifyme") as Label;
      Notifyme.innertext = readershifttime["alert"].ToString();
      readershifttime.Close();
      }

Answer 1

您的代码中的修改很少：

如果您想使用＆＃39; noti_container＆＃39;在代码中然后使用＆＃39; runat＆＃39;属性以解决错误。
Notifyme.innertext：＆＃39; innertext＆＃39;不是asp：Label的属性。用户＆＃39;文字＆＃39;属性
避免使用代码行和不必要的对象创建

因此，您的代码将如下所示在母版页中：

    <li>
<table border="0" align="left" cellpadding="7" cellspacing="7"
       style="margin-top:20px;">
    <tr>
        <td class="auto-style1">

            <div id="noti_Container" runat="server">
                <asp:HyperLink ID="HyperLink1" runat="server"
                               NavigateUrl="../manage2.aspx">
                    <i class="fa fa-envelope-o fa-fw"></i>
                </asp:HyperLink>
                <div class="noti_bubble">
                    <asp:Label ID="Notifyme" runat="server" Text="7" />

                </div>
            </div>
        </td>
        <td class="auto-style1">
</li>

代码背后：

           SqlConnection CON = new SqlConnection(Testdb);
        {
            CON.Open();
            string ShiftTime = "SELECT count(discard) as alert FROM [Rejected].[dbo].[InQuestion] where discard = '0'";
            SqlCommand ShiftTimecalculate = new SqlCommand(ShiftTime, CON);
            SqlDataReader readershifttime =
            ShiftTimecalculate.ExecuteReader();
            readershifttime.Read();
            if (readershifttime.hasrows)

            {
                Notifyme.Text = readershifttime["alert"].ToString();
                readershifttime.Close();
            }
        }

我希望这会有所帮助。

在asp.net主页上通知图标更改范围文本

1 个答案: