嗨,即时通讯:我想知道是否有可能添加一个asp按钮到下面的代码,下面的代码将图像和文本从我的数据库添加到动态div在我的ASP页:通过asp.net中的代码添加按钮到网页,并删除动态数据库entrys
using System.Data.Odbc;
using System.IO;
public partial class UserProfileWall : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
string theUserId = Session["UserID"].ToString();
PopulateWallPosts(theUserId);
}
private void PopulateWallPosts(string userId)
{
using (OdbcConnection cn = new OdbcConnection("Driver={MySQL ODBC 3.51 Driver}; Server=localhost; Database=gymwebsite2; User=root; Password=commando;"))
{
cn.Open();
using (OdbcCommand cmd = new OdbcCommand("SELECT wp.WallPostings, p.PicturePath FROM WallPosting wp LEFT JOIN User u ON u.UserID = wp.UserID LEFT JOIN Pictures p ON p.UserID = u.UserID WHERE wp.UserID=" + userId + " ORDER BY idWallPosting DESC", cn))
{
//("SELECT wp.WallPostings, p.PicturePath FROM WallPosting wp LEFT JOIN [User] u ON u.UserID = wp.UserID LEFT JOIN Pictures p ON p.UserID = u.UserID WHERE UserID=" + userId + " ORDER BY idWallPosting DESC", cn))
using (OdbcDataReader reader = cmd.ExecuteReader())
{
test1.Controls.Clear();
while (reader.Read())
{
System.Web.UI.HtmlControls.HtmlGenericControl div = new System.Web.UI.HtmlControls.HtmlGenericControl("div");
div.Attributes["class"] = "test";
//div.Style["float"] = "left";
div.ID = "test";
Image img = new Image();
img.ImageUrl = String.Format("{0}", reader.GetString(1));
// this line needs to be represented in sql syntax
//img.ImageUrl = "~/userdata/2/uploadedimage/batman-for-facebook.jpg";
img.AlternateText = "Test image";
div.Controls.Add(img);
div.Controls.Add(ParseControl(String.Format("   "+"{0}", reader.GetString(0))));
div.Style["clear"] = "both";
test1.Controls.Add(div);
}
}
}
}
}
protected void Button1_Click(object sender, EventArgs e)
{
string theUserId = Session["UserID"].ToString();
using (OdbcConnection cn = new OdbcConnection("Driver={MySQL ODBC 3.51 Driver}; Server=localhost; Database=gymwebsite2; User=root; Password=commando;"))
{
cn.Open();
using (OdbcCommand cmd = new OdbcCommand("INSERT INTO WallPosting (UserID, Wallpostings) VALUES (" + theUserId + ", '" + TextBox1.Text + "')", cn))
{
cmd.ExecuteNonQuery();
}
}
PopulateWallPosts(theUserId);
}
}
这是很奇怪的寿,如果我不设法添加类似于我已经加入的图像方式的按钮,我将如何调用该按钮,例如:
我想调用这个按钮“删除”并添加代码来删除我的数据库中与该div相关的文本,但是如果有多个div(所有命名为相同的div id = test)和文本,并且它们都有同样的asp按钮,我将如何能够告诉按钮只删除当前文本(在数据库中)为当前div?
我的数据库存储,像这样的信息:
即时通讯思想我将不得不使用idwallposting但不知道如何?
而且给它看起来多么它可以帮助援助在理解的可视化表示:
我的CSS和ASP:
div#test1 {
}
div .test {
width:90%;
z-index:1;
padding:27.5px;
border-top: thin solid #736F6E;
border-bottom: thin solid #736F6E;
color:#ffffff;
margin:0 auto;
white-space: pre;
white-space: pre-wrap;
white-space: pre-line;
word-wrap: break-word;
}
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder2" Runat="Server">
<script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.5.1.min.js" type="text/javascript"></script>
<p>
<asp:TextBox ID="TextBox1" name="TextBox1" runat="server" Rows="3"
Height="47px" Width="638px"></asp:TextBox>
</p>
<p>
<asp:Button ID="Button1" runat="server" Text="Post Message" Width="98px"
onclick="Button1_Click" />
</p>
<p>
</p>
<style type="text/css">
img {border-width:0px; width:100px; height:100px;}
</style>
<div id="test1" runat="server" />
</div>
</asp:Content>
因为没有为造型加ID整个后端系统想试试我的方法坚持 – 2011-03-27 13:25:25
还测试+ idwallposting将意味着它会出来为Test1 TEST2 EYC并没有CSS将应用于 – 2011-03-27 13:27:04
使用测试1测试2等的id和class =“test”用于css或使用其他选择器......您也可以为删除按钮本身赋予唯一的ID ...然后通过在按钮的事件中投射sender对象来读取ID。 – 2011-03-29 07:57:09