只有第一次删除按钮工作才能删除列表中的产品 [英] only first time remove button work to remove product in my list

问题描述

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

namespace BiggestBookWeb.Forms
{
    public partial class MyList : System.Web.UI.Page
    {
        DataSet oDS = new DataSet();
        DataTable dt = new DataTable();

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
             
                int counta = Convert.ToInt32(Session["AddToListCount"]);
                for (int i = 0; i <= counta; i++)
                {
                    string keyword = Convert.ToString(Session["AddToList" + i]);

                    oDS = SearchHelper.getCompareResultByKeywords(keyword);
                    if (i == 0)
                    {
                        foreach (DataColumn col in oDS.Tables[0].Columns)
                        {
                            dt.Columns.Add(col.ColumnName, col.DataType);
                        }
                    }
                    if (keyword != "")
                    {
                        dt = tblGridRow();
                    }
                }
                GridView1.DataSource = dt;
                GridView1.DataBind();

            }
        }




        protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
        {




            if (e.CommandName == "Remove")
            {
                int count = Convert.ToInt32(Session["AddToListCount"]);
                for (int i = 0; i <= count; i++)
                {
                    Session["AddToList"] = "";
                    Response.Redirect("../Forms/MyList.aspx");
                }
            }
        }
        
        public DataTable tblGridRow()
        {
            
            for (int i = 0; i < 1; i++)
            {
                DataRow dr = dt.NewRow();
                dr["LG_ITEM_DSC"] = oDS.Tables[0].Rows[0]["LG_ITEM_DSC"].ToString();
                dr["MFR_SKU_NUM"] = oDS.Tables[0].Rows[0]["MFR_SKU_NUM"].ToString();
                string Price = oDS.Tables[0].Rows[0]["LIST_AMT"].ToString();
                int length = Price.Length;
                dr["LIST_AMT"] = Price.Remove(length - 2, 2);
                dr["BRND_LOGO"] = oDS.Tables[0].Rows[0]["BRND_LOGO"].ToString();
                dr["INV_UN_CDE"] = oDS.Tables[0].Rows[0]["INV_UN_CDE"].ToString();
                dt.Rows.Add(dr);
            }
            return dt;
        }


        protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
        {
            GridView1.DataSource = dt;

            GridView1.DataBind();

            

        }
     }
}

推荐答案

HI，



如果页面是MyList.aspx页面，那么您不需要一次又一次地重定向页面。只需确保网格绑定在一个单独的函数中并调用函数/绑定网格代替

If the page is MyList.aspx page then you need not to redirect the page again and again. Just make sure the grid binding in a separate function and call the function/bind the grid in place of

Response.Redirect("../Forms/MyList.aspx");

这将解决您的问题。







如果你想从网格中删除一行，请使用以下代码。

This will resolve your problem.



If you want to delete a row from the grid then use the following code.

if (e.CommandName == "Delete")
    {
        int index = Convert.ToInt32(e.CommandArgument);
        GridView1.DeleteRow(index);
        ((DataTable)ViewState["DataTable"]).Rows[index].Delete();
        ((DataTable)ViewState["DataTable"]).AcceptChanges();
        GridView1.DataSource = (DataTable)ViewState["Data"];
        GridView1.DataBind();
    }

通过这种方式你可以删除一行。



[/编辑]





谢谢

In this way you can delete a single row.

[/Edit]


Thanks

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