无法从网格视图中创建的动态文本框中读取

本文关键字：动态 文本 读取 创建 网格 视图 | 更新日期: 2023-09-27 18:13:17

我是新的dotnet，我只是想动态地为网格视图添加一行文本框。

加载页面时，网格视图将以只读方式加载数据。

单击编辑按钮，第二行将加载文本框。我一直成功到这里。现在，在这些文本框中输入一些数据时，我无法在我的c#代码中读取值。

是我的代码片段。有谁能帮我一下吗?

ASP代码:

<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true"
    CodeBehind="Default.aspx.cs" Inherits="justGrid._Default" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
    <br />
<asp:GridView ID="GridView1" runat="server">
</asp:GridView>
    <br />
    <asp:TextBox ID="TextBox1" runat="server" Width="170px"></asp:TextBox>
    <br />
    <br />
    <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="edit" />
    <br />
    <br />
    <asp:Button ID="Button2" runat="server" onclick="Button2_Click" Text="save" />
    <br />
</asp:Content>
c#代码:

public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                staticTable();
            }
            bindGrid();
        }
        protected void staticTable()
        {
            string[] NamesArray = new string[] { "RAM", "SAM", "TOM", "JERRY" };
            DataSet ds = new DataSet();
            DataTable dt = new DataTable();
            dt = ds.Tables.Add();
            dt.Columns.Add("Names", typeof(string));
            for (int j = 1; j <= 5; j++)
            {
                dt.Columns.Add("" + j, typeof(string));
            }
            foreach (string l in NamesArray)
            {
                dt.Rows.Add(l);
            }
            dt.Rows[0][1] = "S";
            dt.Rows[0][2] = "P";
            dt.Rows[0][5] = "P";
            dt.Rows[1][2] = "S";
            dt.Rows[1][4] = "P";
            dt.Rows[2][3] = "S";
            dt.Rows[3][1] = "U";
            dt.Rows[3][5] = "P";
            ViewState["CurrentTable"] = dt;
            GridView1.DataSource = ds;
            // GridView1.DataBind();
        }
        protected void bindGrid()
        {
            DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
            GridView1.DataSource = dtCurrentTable;
            GridView1.DataBind();
        }
        protected void Button1_Click(object sender, EventArgs e)
        {
            for (int k = 1; k <= 5; k++)
            {
                TextBox tb1 = new TextBox();
                tb1.Attributes.Add("runat", "server");
                tb1.Width = 15;
                tb1.ID = "TBID" + k;
                tb1.Text = GridView1.Rows[1].Cells[k].Text.Trim().Replace("&nbsp;", string.Empty);
                GridView1.Rows[1].Cells[k].Controls.Add(tb1);
            }
        }
        protected void Button2_Click(object sender, EventArgs e)
        {
            TextBox box1 = (TextBox)GridView1.Rows[1].Cells[1].FindControl("TBID1");
            TextBox1.Text = box1.Text;
        }
    }

注意:仅用于测试目的…我试图在文本框中显示第二行第一列的值。

无法从网格视图中创建的动态文本框中读取

foreach (GridViewRow row in GridView1.Rows)
{    
    TextBox box1 = row.FindControl("TBID") as TextBox;
    if (box1 != null)
    {
        string value = box1.Text;
    }
 }
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