1我在这里的第一个问题，请原谅，如果我不熟练使用技术语言，因为我是来自莫桑比克深处的自学开发人员，感谢这个网站。
我的问题是我有一个
public void topicView_ItemDataBound(object sender,e)
在我的代码后面有一个带有转发器的特定aspx页面，它接收来自数据表的信息（如果我的术语是正确的。）ItemDataBound事件是将我的控件安排在转发器中，以便隐藏，禁用和根据确定的标准显示其他控件。现在我注意到ItemDataBound事件正在减慢我的页面加载时间大约20到40秒，这真的很糟糕，即使在回发后也是如此。当我删除ItemDataBound事件。我运行顺利。但我无法处理ItemDataBound事件，因为它是我知道如何安排具有交替条件的转发器的唯一方法。这是一个快速回答的常见问题，还是我应该发布我的完整代码？这只发生在此事件的2页上。我正在使用c＃，如果有任何帮助。 net.4.5
public void topicView_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
// Show or hid div here
HiddenField MediaType = (HiddenField)e.Item.FindControl("MediaType");
HiddenField PageAdmin = (HiddenField)e.Item.FindControl("PageAdmin");
HiddenField f1 = (HiddenField)e.Item.FindControl("F1");
HiddenField PP = (HiddenField)e.Item.FindControl("PP");
HiddenField isread= (HiddenField)e.Item.FindControl("isread");
HiddenField tread = (HiddenField)e.Item.FindControl("tread");
// Label Label2 = (Label)e.Item.FindControl("Label2");
// Label2.Text = myDDL.Value;
System.Web.UI.HtmlControls.HtmlContainerControl image_video = (System.Web.UI.HtmlControls.HtmlContainerControl)e.Item.FindControl("image_video");
System.Web.UI.HtmlControls.HtmlContainerControl image_pic = (System.Web.UI.HtmlControls.HtmlContainerControl)e.Item.FindControl("image_pic");
System.Web.UI.HtmlControls.HtmlContainerControl PP1 = (System.Web.UI.HtmlControls.HtmlContainerControl)e.Item.FindControl("PP1");
System.Web.UI.HtmlControls.HtmlContainerControl userpic = (System.Web.UI.HtmlControls.HtmlContainerControl)e.Item.FindControl("userpic");
System.Web.UI.HtmlControls.HtmlContainerControl compic = (System.Web.UI.HtmlControls.HtmlContainerControl)e.Item.FindControl("compic");
System.Web.UI.HtmlControls.HtmlContainerControl userpic2 = (System.Web.UI.HtmlControls.HtmlContainerControl)e.Item.FindControl("userpic2");
System.Web.UI.HtmlControls.HtmlContainerControl compic2 = (System.Web.UI.HtmlControls.HtmlContainerControl)e.Item.FindControl("compic2");
System.Web.UI.HtmlControls.HtmlContainerControl pf = (System.Web.UI.HtmlControls.HtmlContainerControl)e.Item.FindControl("pf");
System.Web.UI.HtmlControls.HtmlContainerControl attach = (System.Web.UI.HtmlControls.HtmlContainerControl)e.Item.FindControl("attach");
LinkButton LinkButton3 = (LinkButton)e.Item.FindControl("LinkButton3");
LinkButton LinkButton1 = (LinkButton)e.Item.FindControl("LinkButton1");
Label Label4 = (Label)e.Item.FindControl("Label4");
Label Label10 = (Label)e.Item.FindControl("Label10");
System.Web.UI.WebControls.Image readsign = (System.Web.UI.WebControls.Image)e.Item.FindControl("readsign");
System.Web.UI.WebControls.Image Image2 = (System.Web.UI.WebControls.Image)e.Item.FindControl("Image2");
if (MediaType.Value == "video")
{
image_video.Visible = false;
image_pic.Visible = true;
Image2.ImageUrl = "~/images/readmail.png";
}
if (MediaType.Value == "image")
{
image_video.Visible = true;
image_pic.Visible = false;
}
if (MediaType.Value == "" ) { attach.Visible = false; } else { attach.Visible = true; }
if (PageAdmin.Value == "False")
{
compic.Visible = false;
userpic.Visible = true;
userpic2.Visible = true;
compic2.Visible = false;
}
if (PageAdmin.Value == "True")
{
userpic.Visible = false;
compic.Visible = true;
userpic2.Visible = false;
compic2.Visible = true;
}
if (isread.Value == "True")
{
readsign.ImageUrl = "~/images/readmail.png";
Label4.Text = "foi lido ";
Label10.Text = tread.Value;
}
}
}
和我的转发器的aspx代码：
<asp:Repeater ID="Repeater1" runat="server" DataSourceID="SqlDataSource1"
OnItemDataBound="topicView_ItemDataBound"><ItemTemplate>
<div id="messages" style="margin-bottom: 10px">
<asp:HiddenField ID="Status" runat="server"
Value='<%#""+Eval("Isreplyed") %>' />
<asp:HiddenField ID="Pageadmin" runat="server"
Value='<%#""+Eval("PageAdmin") %>'/>
<asp:HiddenField ID="MediaType" runat="server"
Value='<%#""+Eval("MediaType") %>' />
<asp:HiddenField ID="isread" runat="server" Value='<%#""+Eval("Isread")
%>' />
<asp:HiddenField ID="tread" runat="server" Value='<%#""+Eval("tread","
{0:d / MM " + "@" + " HH:mm}") %>' />
<div id="Omsg" style="padding: 5px; border: thin solid #FFFFFF; box-
shadow:rgba(255, 255, 255,0.9) 0 0 7px; background-color: #FFFFFF;border-
radius:5px; " >
<table style="width: 100%; text-align: left; margin-left: 0px;">
<tr><td colspan="2">
<asp:Image ID="readsign" runat="server" Height="25" Width="25"
ImageUrl="~/images/newmail.png" />
<asp:Label ID="Label4" runat="server" Text='<%# ""+Eval("Isreplyed")
%>' Font-Size="X-Small" ForeColor="#999999"></asp:Label>
<asp:Label ID="Label10" runat="server" Text='<%#""+Eval("datesent","{0:d /
MM " + "@" + " HH:mm}") %>' Font-Size="X-Small" ForeColor="#999999">
</asp:Label>
</td></tr>
<tr>
<td style="width: 66px; text-align: left;"><a id="pps" ><div
id="compic" ClientIDMode="Static" runat="server"><img id="PP1" alt=""
class="img-rounded" src='<%#"/ProfilePictures/"+Eval("logo") %>'
style="width: 50px; height: 50px" /></div><input id="Hidden2" type="hidden"
runat="server" value='<%#"/ProfilePictures/"+Eval("logo") %>' /></a>
<div id="userpic" clientidmode="Static" runat="server">
<img alt="" class="img-circle"
src='<%#"/ProfilePictures/"+Eval("ProfilePicture") %>' style="width: 50px;
height: 50px" />
</div><input id="Hidden3" type="hidden" runat="server"
value='<%#"/ProfilePictures/"+Eval("ProfilePicture") %>' />
</td>
<td style="line-height: 15px"> <div id="compic2"
ClientIDMode="Static" runat="server"> <a href='<%#"/Landing.aspx?
Restid="+Eval("id") %>' ><asp:Label ID="Label2" class="head" runat="server"
Text='<%# ""+Eval("name") %>' Font-Size="Medium" ForeColor="#B9A47B">
</asp:Label> </a><a/><br/>
<asp:Label ID="CName" runat="server"
Text='<%#""+Eval("slogan") %>' Font-Size="Smaller"></asp:Label>. ...</div>
<div id="userpic2" ClientIDMode="Static"
runat="server"><a href='<%#"/Landing.aspx?Restid="+Eval("Username") %>' >
<asp:Label ID="Label8" class="head" runat="server"
Text='<%#""+Eval("Username") %>' Font-Size="Large" ForeColor="#B9A47B">
</asp:Label> <a/><br/>
<asp:Label ID="Label9" runat="server"
Text='<%#""+Eval("Job") %>' Font-Size="Smaller"></asp:Label></a>
<br />
<a/>
<a href='<%#"notificationmaster.aspx?BlogId="+Eval("Blogid") %>'> <asp:Label
ID="Label5" runat="server" Text='<%# "Respondendo à publicação :
"+Eval("BlogTitle") %>' Font-Size="smaller" ForeColor="#B9A47B"></asp:Label>
</a><br/>
</div>
<a/><span style="font-size: x-small; color: #999999">
enviado : </span><asp:Label ID="Label3" runat="server"
Text='<%#""+Eval("datesent","{0:d MMMM yyyy - HH:mm}") %>' Font-Size="X-
Small" ForeColor="#999999"></asp:Label></a>
<br />
<div id="attach" ClientIDMode="Static" runat="server" >
<asp:Label ID="Label17" runat="server" Text="Esta mensagem tem anexo"
ForeColor="#999999" Font-Size="X-Small" Font-Underline="True">
</asp:Label> <img alt="" src="images/attach.png" style="width: 20px;
height: 20px" /></div>
</td>
</tr>
<tr>
<td colspan="2">
<br/>
<div id="msgbody" style="display: none">
<asp:Label ID="Label1" runat="server" Text='<%#""+Eval("mbody") %>'>
</asp:Label><br/>
<div id="image_pic" ClientIDMode="Static" runat="server" >
<asp:HiddenField ID="HiddenField1" runat="server"
Value='<%#"/PostImages/"+Eval("image") %>' />
<asp:Image ID="Image1" class="img-thumbnail" ClientIDMode="Static"
runat="server" ImageUrl='<%#"/PostImages/"+Eval("image") %>' alt="Broken"
Width="100%" />
</div>
<div id="image_video" runat="server" onclick="AddView" >
<video id="PostVedio" runat="server" controls
poster="/images/chimoioonline.png" src='<%#"/video/"+Eval("video") %>'
style="width: 100%">
<source src="demo.mp4" type="video/mp4" />
<source src="demo.webm" type="video/webm"/>
<source src="demo.ogv" type="video/ogg"/>
<source src="demo.ogv" type="video/avi"/>
<p>Fallback code if video isn't supported</p>/
</video></div></div>
</td>
</tr>
<tr>
<td colspan="2" style="text-align: right">
<hr style="padding: 2px; margin: 5px" />
<div id="deletm" style="display: inline-block">
<input id="Hidden1" type="hidden" runat="server"
value='<%#Eval("id")%>' />
<asp:LinkButton ID="LinkButton3" runat="server" CssClass="btn"
onclick="pmdelet" BorderColor="#CCCCCC" BorderWidth="1px"><img
src="/images/delete.png" alt="" style=" height: 15px" />
</asp:LinkButton> <br />
</div>
<div id="sendpm" style="display: inline-block">
<input id="mido" type="hidden" runat="server"
value='<%#Eval("id")%>' />
<input id="Hidden4" type="hidden" runat="server"
value='<%#Eval("BlogId")%>' />
<input id="sender2" type="hidden" runat="server"
value='<%#Eval("sender")%>' />
<asp:LinkButton ID="LinkButton1" runat="server" CssClass="btn"
BorderColor="#CCCCCC" BorderWidth="1px" OnClientClick=""
PostBackUrl='<%#"PMS.aspx?id=" + Eval("id") + "&BlogId=" + Eval("BlogId")+
"&sender=" + Eval("sender")%>' ><img src="images/pvtemail.png" alt=""
style=" height: 15px" /></asp:LinkButton>
</div>
<div id="read" style="display: inline-block">
<input id="H5" type="hidden" runat="server"
value='<%#Eval("id")%>' />
<input id="H7" type="hidden" runat="server"
value='<%#"/ProfilePictures/"+Eval("logo") %>' />
<input id="H8" type="hidden" runat="server"
value='<%#"/ProfilePictures/"+Eval("ProfilePicture") %>' />
<input id="H6" type="hidden" runat="server"
value='<%#Eval("Isreplyed")%>' />
<input id="H14" type="hidden" runat="server"
value='<%#Eval("Username")%>' />
<input id="H10" type="hidden" runat="server"
value='<%#Eval("name")%>' />
<input id="H13" type="hidden" runat="server"
value='<%#Eval("Subject")%>' />
<input id="H9" type="hidden" runat="server"
value='<%#Eval("BlogTitle")%>' />
<input id="H11" type="hidden" runat="server"
value='<%#Eval("datesent","{0:d / MM " + "@" + " HH:mm}")%>' />
<input id="H12" type="hidden" runat="server"
value='<%#Eval("mbody")%>' />
<input id="v5" type="hidden" runat="server" value='<%#
Eval("video")%>' />
<input id="p5" type="hidden" runat="server"
value='<%#Eval("image")%>' />
<input id="sender" type="hidden" runat="server"
value='<%#Eval("sender")%>' />
<input id="Hidden5" type="hidden" runat="server"
value='<%#Eval("Blogid")%>' />
<input id="PageAdmin2" type="hidden" runat="server"
value='<%#Eval("PageAdmin")%>' />
<asp:LinkButton ID="LinkButton2" runat="server" CssClass="btn"
BorderColor="#CCCCCC" BorderWidth="1px" OnClientClick="return false"><img
src="/images/read2.png" alt="" style=" height:15px" /></asp:LinkButton>
</div>
</td>
</tr>
</table>
</div>
<div id="Rmsg">
</div>
</div>
</ItemTemplate></asp:Repeater>
答案 0 :(得分：0)
这不是一个真正的答案，但更多的方法让你深入研究这个问题是什么。 （而且它还要征求意见）
首先，您需要确保安装了SQL Server管理工具，特别是您需要名为SQL server profiler的工具。
在分析器中，您可以转到＆＃34; file＆＃34; ＆＃34;新痕迹＆＃34;并连接到您的SQL服务器。
在Trace属性中，您只选择＆＃34; RPC：completed＆＃34;和＆＃34; SQL：BatchCompleted＆＃34;。
现在您可以运行您的aspx页面了，您应该在分析器中查看页面生成的所有SQL查询。你应该注意两件事。
首先，查找长时间运行的查询。持续时间列在MS中，您不应该有超过1000毫秒的任何人。
其次，运行页面时运行的查询数。普通页面不应超过20个查询。通常当你遇到问题时，你可以运行数百个。
