用asp.net 作了不少网页,有的时候查询数据会很慢,我看到有的网站都有一个类似flash的图片或是文字提示“正在查询,请稍后” ,我也放了一个lable ,在查询时给赋值“正在查询,请稍后”,但总是不显示,是我放的不对还是怎么着,在这咨询下大家放在哪里好些??我把数据库查询的代码贴出来: OleDbCommand cmd1 = new OleDbCommand(sqlStr, db2.getCon());
cmd1.ExecuteNonQuery();
OleDbDataAdapter queny1;
queny1 = new OleDbDataAdapter(cmd1);
DataSet DataSet6;
DataSet6 = new DataSet();
queny1.Fill(DataSet6);
Label1.Text = "统计速度慢,请稍等!"; GridView1.DataSource = DataSet6;
GridView1.DataBind();不知 这个Label1.Text = "统计速度慢,请稍等!";放哪好?
cmd1.ExecuteNonQuery();
OleDbDataAdapter queny1;
queny1 = new OleDbDataAdapter(cmd1);
DataSet DataSet6;
DataSet6 = new DataSet();
queny1.Fill(DataSet6);
Label1.Text = "统计速度慢,请稍等!"; GridView1.DataSource = DataSet6;
GridView1.DataBind();不知 这个Label1.Text = "统计速度慢,请稍等!";放哪好?
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger ControlID ="Button1" EventName ="Click" />
</Triggers>
<ContentTemplate>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdateProgress ID="UpdateProgress1" runat="server">
<ProgressTemplate>
<span style =" font-size:12px">数据更新中......</span>
</ProgressTemplate>
</asp:UpdateProgress>
<asp:Button ID="Button1" runat="server" Text="Button" Width="143px" OnClick="Button1_Click" />
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Label ID="Label2" runat="server" Text="请输入用户名"></asp:Label><input type="text" id="text2" /><asp:Button
ID="Button2" runat="server" Text="查询" onclick="Button1_Click" />
<asp:UpdateProgress ID="UpdateProgress1" runat="server">
<ProgressTemplate>
正在加载数据.............
</ProgressTemplate>
</asp:UpdateProgress>或用div显示
updateprogress控件 具体怎么用呢??
参考地址www.cnblogs.com/mail-ricklee
或gif图片也行!
进度条的js也不少!