如何将动态创建的文本框值插入数据库 [英] How Do I Insert Dynamically Created Textbox Values To Database

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本文介绍了如何将动态创建的文本框值插入数据库的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

 <   asp:Panel     ID   =  Panel1     runat   =  server >  
< / asp:Panel >
< asp:按钮 ID = Button1 runat = server 文本 = 按钮 OnClick = Button1_Click / >





我的default.aspx.cs文件代码



使用System; 
使用System.Collections.Generic;
使用System.Linq;
使用System.Web;
使用System.Web.UI;
使用System.Web.UI.WebControls;

public partial class test_Default2:System.Web.UI.Page
{
protected void Page_load(object sender,EventArgs e)
{
if( !Page.IsPostBack)
{
//首次加载页面时删除会话。
Session.Remove(点击);
}
}

protected void Button1_Click(object sender,EventArgs e)
{
int rowCount = 0;
//初始化会话。
rowCount = Convert.ToInt32(Session [clicks]);
rowCount ++;
//在每个按钮中,将数字保存到会话中。
Session [clicks] = rowCount;

//每次单击按钮时创建文本框和标签。
for(int i = 0; i< rowCount; i ++)
{
TextBox TxtBoxU = new TextBox();
TextBox TxtBoxE = new TextBox();
Label lblU = new Label();
Label lblE = new Label();
TxtBoxU.ID =TextBoxU+ i.ToString();
TxtBoxE.ID =TextBoxE+ i.ToString();
lblU.ID =LabelU+ i.ToString();
lblE.ID =LabelE+ i.ToString();
lblU.Text =User+(i + 1).ToString()+:;
lblE.Text =电子邮件:;

//将标签和文本框添加到Panel。
Panel1.Controls.Add(lblU);
Panel1.Controls.Add(TxtBoxU);
Panel1.Controls.Add(lblE);
Panel1.Controls.Add(TxtBoxE);
}
}
}

解决方案



$ b提交按钮中的$ b单击使用以下代码从动态创建的文本框中检索文本



  protected   void  btnSubmit_Click( object  sender,EventArgs e)
{
TextBox txt;

foreach (控制c Panel1.Controls)
{
if (c.GetType()== typeof (TextBox))
{
txt =(TextBox)c;
String str = txt.Text;
}
}

}






为每个文本框控件分配唯一ID ....对于唯一ID使用GUID生成器



请将文本框的(动态)id存储在列表与LT;串GT;然后按名称访问动态创建的文本框...





谢谢,

Ullas克里希南

<asp:Panel ID="Panel1" runat="server">
</asp:Panel>
<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />



my default.aspx.cs file code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
 
public partial class test_Default2 : System.Web.UI.Page
{
    protected void Page_load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            //Remove the session when first time page loads.
            Session.Remove("clicks");
        }
    }

    protected void Button1_Click(object sender, EventArgs e)
    {
        int rowCount = 0;
        //initialize a session.
        rowCount = Convert.ToInt32(Session["clicks"]);
        rowCount++;
        //In each button clic save the numbers into the session.
        Session["clicks"] = rowCount;
        
        //Create the textboxes and labels each time the button is clicked.
        for (int i = 0; i < rowCount; i++)
        {
            TextBox TxtBoxU = new TextBox(); 
            TextBox TxtBoxE = new TextBox();
            Label lblU = new Label();
            Label lblE = new Label();
            TxtBoxU.ID = "TextBoxU" + i.ToString();
            TxtBoxE.ID = "TextBoxE" + i.ToString();
            lblU.ID = "LabelU" + i.ToString();
            lblE.ID = "LabelE" + i.ToString();
            lblU.Text = "User " + (i + 1).ToString() + " : ";
            lblE.Text = "E-Mail : ";
            
            //Add the labels and textboxes to the Panel.
            Panel1.Controls.Add(lblU);
            Panel1.Controls.Add(TxtBoxU);
            Panel1.Controls.Add(lblE);
            Panel1.Controls.Add(TxtBoxE); 
        }
    }
}

解决方案

Hi
in the submit button click use the following code to retrieve texts from dynamically created textboxes

protected void btnSubmit_Click(object sender, EventArgs e)
{
    TextBox txt;

    foreach (Control c in Panel1.Controls)
    {
        if (c.GetType() == typeof(TextBox))
        {
            txt = (TextBox)c;
            String str = txt.Text;
        }
    }

}


Hi,

Assign unique ID for each Textbox control.... for unique id use GUID generator

Please store the (dynamic) id of text box in a List<string> and then access the dynamically created text-box by its name...


Thanks,
Ullas Krishnan


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