Question

我在页面上有多个TextBox和多个按钮。如果我在一个TextBox中按Enter键，则应执行相应的Button click事件。

我已编写如下代码，但它无效。任何人都可以向我解释一下......

<div>
    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
    <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
    <br />
    <br />
    <br />
    <br />
    <br />
    <br />
    <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
    <asp:Button ID="Button2" runat="server" Text="Button" OnClick="Button2_Click" />
    <br />
    <br />
    <br />
    <br />
    <br />
    <br />
    <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
    <asp:Button ID="Button3" runat="server" Text="Button" OnClick="Button3_Click" />
    <br />
    <br />
    <br />
    <br />
    <br />
    <br />
    <asp:TextBox ID="TextBox4" runat="server"></asp:TextBox>
    <asp:Button ID="Button4" runat="server" Text="Button" OnClick="Button4_Click" />
</div>

代码

public partial class JavaScriptEnterKey : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        TextBox1.Attributes.Add("OnKeyDown", "HitButton('" + Button1.ClientID + "');");
        TextBox2.Attributes.Add("OnKeyDown", "HitButton('" + Button2.ClientID + "');");
        TextBox3.Attributes.Add("OnKeyDown", "HitButton('" + Button3.ClientID + "');");
        TextBox4.Attributes.Add("OnKeyDown", "HitButton('" + Button4.ClientID + "');");
    }

    protected void Button1_Click(object sender, EventArgs e)
    {
        Response.Write("Button1 is clicked");
    }

    protected void Button2_Click(object sender, EventArgs e)
    {
        Response.Write("Button2 is clicked");
    }

    protected void Button3_Click(object sender, EventArgs e)
    {
        Response.Write("Button3 is clicked");
    }

    protected void Button4_Click(object sender, EventArgs e)
    {
        Response.Write("Button4 is clicked");
    }

}


**JavaScript**
function HitButton(Button) {
    if (event.keyCode == 13) document.getElementById(Button).click();
}

Answer 1

尝试使用按键事件而不是键码。这似乎适用于我的代码。

用于查找多个按钮中按下哪个按钮的JavaScript

1 个答案: