在html文本框中输入数据并在数据库中显示
[英]Enter data in html textbox and show it in database
问题描述
I have created two tables: Artist and Song. 
我创建了两个表：Artist和Song。 Artist table has fields Artistid and ArtistName and Song table has SongID, Lyrics, Description and Artistid as the secondary key. Artist表具有字段Artistid和ArtistName，Song表具有SongID，Lyrics，Description和Artistid作为辅助键。 I have a web form to add new artist containing a textbox and submit button. 我有一个Web表单来添加包含文本框和提交按钮的新艺术家。
The code is as below : 代码如下：
<head id="Head1" runat="server">
<title></title>
</head>
<body>
<form id="form1" method ="post">
<div style="width: 960px; color: black; border: 2px solid black; text-align:"center">
<table>
<tr>
<td> <label>Artist: </label>
<input type="text" name ="textArtist" id ="txtartist" value = "" />
</td>
</tr>
<tr>
<td>
<p align="center" >
<input type = "button" id= "btnArtist" value ="submit" />
</p>
</td>
</tr>
</table>
</div>
</form>
</body>
My requirement is that I will enter some name in textbox and click on submit , the same name should be shown in artist table in the database . 我的要求是，我将在文本框中输入一些名称，然后单击“提交”，该名称应在数据库的艺术家表中显示。 I have also created a namespace using Mygenerations with the artist and song table . 我还使用Mygenerations和艺术家和歌曲表创建了一个命名空间。 I have written the foll code but it does not show the data in database .it does not work properly . 我已经写了以下代码，但是它没有显示数据库中的数据。它无法正常工作。 Please help. 请帮忙。 The code behind file is as below : 文件后面的代码如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using NCI.EasyObjects ;
using TestSong ;
public partial class _Default : System.Web.UI.Page
{
string strcon = "Company";
protected void Page_Load(object sender, EventArgs e)
{
}
void btnartist_onclick(object sender, EventArgs e)
{
string s_artistname = textArtist.Value;
Artist oArtist = new Artist(strcon);
oArtist.Where.ArtistName.Value = s_artistname;
if (!oArtist.Query.Load())
{
oArtist.AddNew();
oArtist.ArtistName = textArtist.Value;
oArtist.Save();
}
}
}
Also I am getting an error for the line that has textArtist.Value . 另外，对于具有textArtist.Value的行，我也遇到了错误。 The error is textArtist does not exist in current context. 错误是textArtist在当前上下文中不存在。 Please tell me where I'm going wrong. 请告诉我我要去哪里了。
2 个解决方案
解决方案1
1 2015-05-07 11:57:14
Can be more reasons but for now you have used txtArtist as the Id. 可能还有更多原因，但是到目前为止，您已经使用txtArtist作为ID。 So use this 所以用这个
string s_artistname = txtArtist.Value;
and 和
oArtist.ArtistName = txtArtist.Value;
解决方案2
0 2015-05-07 12:06:50
如果要在后台代码中访问它，请使用runat=server
<input type="text" name ="textArtist" id ="txtartist" runat="server" />
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