如何检查转发器中按下了哪个按钮 [英] how to check which button is pressed in repeater

问题描述

任何人都可以用vb代码告诉我如何获得我在转发器中按下的按钮的ID





因为btnclick事件将会不支持，因为转发器中的每个行都有按钮。

Can anyone tell in vb code how can i get the id of button which i pressed in repeater


because btnclick event will not support because button is present in repeater against each row.

推荐答案

在线有几个选项和大量示例。例如，请参阅 http：// stackoverflow。 com / questions / 21791208 / how-can-i-tell-which-button-in-a-repeater-pressed-press [ ^ ]

There are a couple of options and lots of examples online. For example, see http://stackoverflow.com/questions/21791208/how-can-i-tell-which-button-in-a-repeater-got-pressed[^]

<asp:Repeater ID="myRepeater" runat="server" OnItemCommand="myRepeater_ItemCommand" OnItemDataBound="myRepeater_ItemDataBound">
    <ItemTemplate>
        <asp:Button ID="ButtonDelete" Text="Delete" runat="server"/>
    </ItemTemplate>
</asp:Repeater>

public class MyData
{
    public int ID { get; set; }
    public string Name { get; set; }
}

protected void Page_Load(object sender, EventArgs e)
{
    if (!Page.IsPostBack)
    {
        List<MyData> data = new List<MyData>();
        data.Add(new MyData { ID = 1, Name = "Item 1" });
        data.Add(new MyData { ID = 5, Name = "Item 2" });
        data.Add(new MyData { ID = 123, Name = "Item 3" });

        myRepeater.DataSource = data;
        myRepeater.DataBind();
    }
}

protected void myRepeater_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
    // Note this event is configured on the repeater in the markup

    if (e.Item.ItemType == ListItemType.AlternatingItem || e.Item.ItemType == ListItemType.Item)
    {
        // get the data
        MyData data = (MyData)e.Item.DataItem;

        // get the button
        Button ButtonDelete = (Button)e.Item.FindControl("ButtonDelete");

        // set the command name and argument
        ButtonDelete.CommandName = "Delete";
        ButtonDelete.CommandArgument = data.ID.ToString();
    }
}

protected void myRepeater_ItemCommand(object source, RepeaterCommandEventArgs e)
{
    // Note this event is configured on the repeater in the markup

    switch(e.CommandName)
    {
        case "Delete":
            // get the ID of the button clicked from the argumenmt
            int id = int.Parse(e.CommandArgument.ToString());

            // delete the data that matches this id
            break;
    }
}

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