asp.net - 如何在asp中提交表单并获取其值

Question

我有一个带有单选按钮的表单和一个仅重新加载页面而不提交表单数据的提交按钮...我应该在表单操作或方法中做什么，以便我可以获得这些单选按钮值

<form id="form2" name="form2" method="post" action="" runat="server">

    <br />

    <asp:Button ID="Button1" runat="server" Text="Button" />
</form>

Answer 1

您的代码似乎没有任何单选按钮控件...

显示不同选项的示例:

HTML

<form id="form1" runat="server">
 <div>
    <p>
        Name:
        <asp:TextBox ID="textbox1" runat="server" />
        <br />
        Coffee preference:
        <asp:RadioButtonList ID="CoffeeSelections" runat="server" RepeatLayout="Flow" RepeatDirection="Horizontal">
            <asp:ListItem>Latte</asp:ListItem>
            <asp:ListItem>Americano</asp:ListItem>
            <asp:ListItem>Capuccino</asp:ListItem>
            <asp:ListItem>Espresso</asp:ListItem>
        </asp:RadioButtonList>
        <br />
    </p>
    <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
</div>
<div>
    <h1>
        Results</h1>
    <p>
        <asp:Label runat="server" ID="labelResults"></asp:Label></p>
</div>
</form>

代码:

//You can inspect on Page_Load
protected void Page_Load(object sender, EventArgs e)
{
    //Only inspect on submission
    if (Page.IsPostBack)
    {
        if (!string.IsNullOrEmpty(CoffeeSelections.SelectedValue))
        {
            labelResults.Text = CoffeeSelections.SelectedValue + "<br />";
        }

        //you can also inspect request.form colletion
        foreach (string item in Request.Form)
        {
            labelResults.Text += "<b>KEY</b> : " + item + " <b>VALUE</b> = " + Request.Form[item] + "<br />";
        }
    }
}

//You can also inspect on raised control events (e.g. button)
protected void Button1_Click(object sender, EventArgs e)
{
    string _foo = CoffeeSelections.SelectedValue;
    labelResults.Text += _foo;

}