点击按钮动态添加新的一行（添加文本框）

最新推荐文章于 2025-02-17 11:16:18 发布

anbs01

最新推荐文章于 2025-02-17 11:16:18 发布

阅读量1.2w

点赞数

分类专栏： Asp.net 文章标签： button textbox table server asp object

本文链接：https://blog.youkuaiyun.com/anbs01/article/details/5630343

版权

Asp.net 专栏收录该内容

19 篇文章

订阅专栏

类似的论坛上发表投票主题：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;

namespace WebCommonLib.DataList
{
    public partial class Demo : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                DataTable table = new DataTable();
                table.Columns.Add("OptionName", typeof(string));
                for (int i = 0; i < 5; i++)
                {
                    DataRow row = table.NewRow();
                    row["OptionName"] = string.Empty;
                    table.Rows.Add(row);
                }

                ViewState["table"] = table;
                DataList1.DataSource = table;
                DataList1.DataBind();
            }
        }

        protected void MinusItemList_DeleteCommand(object source, DataListCommandEventArgs e)
        {
            foreach (DataListItem item in DataList1.Items)
            {
                Table.Rows[item.ItemIndex]["OptionName"] = (item.Controls[1] as TextBox).Text;
            }

            Table.Rows.RemoveAt(e.Item.ItemIndex);
            DataList1.DataSource = Table;
            DataList1.DataBind();
        }

        protected void Button2_Click(object sender, EventArgs e)
        {
            DataRow row = Table.NewRow();
            Table.Rows.Add(row);
            DataList1.DataSource = Table;
            DataList1.DataBind();
        }

        private DataTable Table {
            get {
                if (ViewState["table"] != null)
                    return (DataTable)ViewState["table"];
                return null;
            }
        }

        protected void Button3_Click(object sender, EventArgs e)
        {
            foreach (DataListItem item in DataList1.Items)
            {
                Literal1.Text += (item.Controls[1] as TextBox).Text;
            }
        }
    }
}