如何通过按钮点击传递参数

时间:2016-10-11 08:03:56

标签: c# asp.net gridview

我有一个带数据绑定的gridview:所有行都是根据ItemSource生成的。我还在末尾添加了一个包含按钮的列。如何将当前itemSource中的字段绑定为按钮单击事件的参数?

以下是代码示例:

WEBFORM

<asp:GridView ID="GridView1" runat="server" 
    AutoGenerateColumns="false" 
    ItemType="ServiceMonitoring.MyClass" 
    SelectMethod="GetMyClassItems" 
    CellPadding="4" 
    ShowFooter="true">
    <Columns>
        <asp:BoundField DataField="MyProperty" HeaderText="ID" />
        <asp:TemplateField HeaderText="Action">
            <ItemTemplate>
                <asp:Button runat="server" 
                    CommandArgument='<%= MyClass.MyProperty %>' 
                    CommandName="ThisBtnClick" 
                    OnClick="Unnamed_Click" 
                    Text="retraiter !" />
                <%--<button onclick="UpdateMyClassItems" runat="server" value="VALEUR">retraiter !</button>--%>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

代码隐藏

public partial class WebForm1: System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e) { }

    public List<MyClass> GetMyClassItems()
    {
        var a = new MyClass() { MyProperty = 2 };
        return new List<MyClass>() { a };
    }

    protected void Unnamed_Click(object sender, EventArgs e)
    {
        var arg = (sender as Button).CommandArgument;
        string ID = arg.ToString();
    }
}

public class MyClass
{
    public int MyProperty { get; set; }
}

命令参数绑定不起作用。你能帮帮我吗?

1 个答案:

答案 0 :(得分:1)

像这样更改CommandArgument

CommandArgument='<%# Eval("MyProperty") %>'

会这样做。您已经提到了ItemType="ServiceMonitoring.MyClass"