C# 从代码隐藏在Html表中显示二进制图像
我正在创建一个表，它应该从数据库中读取二进制图像并显示在Html表中 我的标记：C# 从代码隐藏在Html表中显示二进制图像,c#,html,asp.net,C#,Html,Asp.net,我正在创建一个表，它应该从数据库中读取二进制图像并显示在Html表中 我的标记： <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head id="Head1" runat="server"> <title&g
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>Table Test</title>
<style type="text/css">
.small-ad-wrapper{width:215px;height:195px;overflow:hidden;}
.small-ad-wrapper .portfolio-img-control{width:204px;height:134px;overflow:hidden;margin-bottom:3px;}
</style>
</head>
<body>
<form id="Form1" runat="server">
<div>
<br />
<asp:Button ID="cmdCreate" OnClick="cmdCreate_Click" runat="server" Text="Create" />
<br />
<br />
<asp:Table ID="tbl" runat="server" />
</div>
</form>
</body>
</html>
StringBuilder htmlTable = new StringBuilder();
htmlTable.Append("<table border='1'>");
htmlTable.Append(@"<tr style='background-color:green; color: White;'>
<th>Company Name</th>
</tr>");
int i = 1;
foreach (DataRow row in DT.Rows)
{
if (i == 1)
{
htmlTable.Append("<tr style='color: White;'>");
}
htmlTable.Append("<div class='portfolio-img-control'>");
byte[] bytes = (byte[])(byte[])row["LogoFile"];
string base64String = Convert.ToBase64String(bytes, 0, bytes.Length);
System.Web.UI.WebControls.Image imgNew = new System.Web.UI.WebControls.Image();
imgNew.ImageUrl = "data:image/png;base64," + base64String;
htmlTable.Append("<td>" + imgNew + "</td>");
htmlTable.Append("</div");
if (i == 3)
{
htmlTable.Append("</tr>");
i = 1;
}
else
i = i + 1;
}
htmlTable.Append("</table>");
DBDataPlaceHolder.Controls.Add(new Literal { Text = htmlTable.ToString() });
htmlTable.Append("<tr>");
htmlTable.Append("<td align='center' colspan='4'>There is no Record.</td>");
htmlTable.Append("</tr>");
如何做到这一点？请回复感谢，因为您创建了一个新的asp.net图像控件，并尝试将该对象用作字符串 这些线必须删除
System.Web.UI.WebControls.Image imgNew = new System.Web.UI.WebControls.Image();
imgNew.ImageUrl = "data:image/png;base64," + base64String;
htmlTable.Append("<td>" + imgNew + "</td>");
htmlTable.AppendFormat("<td><img src=\"data:image/png;base64,{0}\"></td>", base64String);