找到单击了哪个Linkbutton [英] Find which Linkbutton was clicked

问题描述

我的页面上有3个链接按钮。

如何确定在服务器端点击了哪个链接按钮。

如果我有一个列表框然后我可以轻松找到{if listbox.selectedindex == 1}这样做;

我怎么知道最后点击了哪个链接按钮。？

I have a 3 link buttons on my page.
How can i determine which link button was clicked on server side.
Like if i have a listbox then i can find that easily with {if listbox.selectedindex == 1}do this;
How can i know which link button was last clicked.?

推荐答案

我给出了实现目标的一小步。



步骤1：在.aspx页面上定义三个链接按钮但这三个具有相同的 onclick 事件，所以你的.aspx页面是：

I am giving few step to achieve the goal.

Step 1.: Define three link buttons on .aspx page but these three have same onclick event so your .aspx page is :

<div>

    <asp:LinkButton ID="LinkButton1" runat="server" onclick="LinkButton1_Click">LinkButton1</asp:LinkButton>

    <asp:LinkButton ID="LinkButton2" runat="server" onclick="LinkButton1_Click">LinkButton2</asp:LinkButton>

    <asp:LinkButton ID="LinkButton3" runat="server" onclick="LinkButton1_Click">LinkButton3</asp:LinkButton>
    </div>

步骤2：现在 onclick 事件定义在页面后面的代码和此事件 sender 分配给 LinkBut​​ton ，用于标识单击的按钮。让我们看看这个事件

Step 2: Now onclick event define on code behind page and in this event sender assign to a LinkButton that identifies which button clicked. Lets see this event

protected void LinkButton1_Click(object sender, EventArgs e)
        {
            LinkButton lnkButton = (LinkButton) sender;
            if (lnkButton.ID == "LinkButton1")
            {
                Response.Write("Button First clicked");
            }
            else if (lnkButton.ID == "LinkButton2")
            {
                Response.Write("Button second clicked");
            }
            else
            {
                Response.Write("Button third clicked");
            }
        }

参考 LinkBut​​ton.OnClick方法 [ ^ ]。



你必须为每个 LinkBut​​ton 提及 OnClick =LinkBut​​ton_Click，其中 LinkBut​​ton_Click 是服务器端事件名称，在事件中你可以检查点击了哪个 LinkBut​​ton 。

Refer LinkButton.OnClick Method[^].

You have to mention OnClick="LinkButton_Click" for each LinkButton, where LinkButton_Click is the Server side Event name and inside the Event you can check which LinkButton Is clicked.

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