Imagebutton onclick 在 updatepanel 中不起作用，我怎样才能使它工作？

发布于 2025-01-05 00:53:39 字数 1175 浏览 6 评论 0原文

 <asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" ChildrenAsTriggers="true"   
 runat="server">
  <ContentTemplate> 
     <asp:ImageButton ID="imagebutton1" runat="server" ImageUrl="~/image.jpg" Width="125" 
     Height="125"  onclick="imagebutton1_Click" />
     <asp:Timer ID="timer1" runat="server" Interval="10000" ontick="timer1_Tick" />
     <asp:Label ID="label1" Visible="false" runat="server" Text="" />
  </ContentTemplate>
</asp:UpdatePanel>

如果我不使用更新面板，整个页面都会刷新。

protected void imagebutton1_Click(object sender, ImageClickEventArgs e){
    string link = label1.Text;
    Page.ClientScript.RegisterStartupScript(this.GetType(), "OPEN", "window.open(" + link +   
    ",'mywindow','width=200,height=200,');", true);
}

这是计时器处理程序中的变量“link”

Random r = new Random();

if (datatable1.Rows.Count > 0)
{
    int randomnumber = r.Next(0, i);
    DataRow datarow1= datatable1.Rows[randomnumber ];
    imagebutton1.ImageUrl = (String)datarow1["image"];
    imagebutton1.DataBind();
    label1.Text = (String)datarow1["Link"];
}

原文

 <asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" ChildrenAsTriggers="true"   
 runat="server">
  <ContentTemplate> 
     <asp:ImageButton ID="imagebutton1" runat="server" ImageUrl="~/image.jpg" Width="125" 
     Height="125"  onclick="imagebutton1_Click" />
     <asp:Timer ID="timer1" runat="server" Interval="10000" ontick="timer1_Tick" />
     <asp:Label ID="label1" Visible="false" runat="server" Text="" />
  </ContentTemplate>
</asp:UpdatePanel>

If I don't use an update panel the whole page refreshes.

protected void imagebutton1_Click(object sender, ImageClickEventArgs e){
    string link = label1.Text;
    Page.ClientScript.RegisterStartupScript(this.GetType(), "OPEN", "window.open(" + link +   
    ",'mywindow','width=200,height=200,');", true);
}

This is the variable "link" here in the timer handler

Random r = new Random();

if (datatable1.Rows.Count > 0)
{
    int randomnumber = r.Next(0, i);
    DataRow datarow1= datatable1.Rows[randomnumber ];
    imagebutton1.ImageUrl = (String)datarow1["image"];
    imagebutton1.DataBind();
    label1.Text = (String)datarow1["Link"];
}

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陌若浮生 2025-01-12 00:53:39

我必须在更新面板中添加回发触发器，如下所示才能使其工作。

<Triggers>
<asp:PostBackTrigger  ControlID="ImageButton"/>
</Triggers>

I had to just add postback triggers as shown below in the updatepanel to make it work.

<Triggers>
<asp:PostBackTrigger  ControlID="ImageButton"/>
</Triggers>

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机场等船 2025-01-12 00:53:39

很难说，因为您并没有真正包含问题，但如果您希望在 UpdatePanel 刷新时运行一段客户端代码，请使用客户端 pageLoad() 方法。

此外，您正在使用服务器端事件来执行客户端操作。请改用 OnClientClick 处理程序：

<asp:ImageButton ID="imagebutton1" runat="server" ImageUrl="~/image.jpg" Width="125" 
    Height="125"  OnClienClick="return openPopUp(this.href);" />

function openPopUp(link)
{
   window.open(this.href,'mywindow','width=200,height=200,');
   return false;
}

It's hard to say since you didn't really include a question, but if you want a piece of client side code to run when an UpdatePanel refreshes, use the client side pageLoad() method.

Also, you are using a server side event to do a client side operation. Use the OnClientClick handler instead:

<asp:ImageButton ID="imagebutton1" runat="server" ImageUrl="~/image.jpg" Width="125" 
    Height="125"  OnClienClick="return openPopUp(this.href);" />

function openPopUp(link)
{
   window.open(this.href,'mywindow','width=200,height=200,');
   return false;
}

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