以下是引用片段： 核心代码如下：
protected void Button1_Click(object sender, EventArgs e)
{
//判断信息是否正确
if (this.TextBox1.Text.Trim() == "")
{
Page.ClientScri'餐品名称不能为空！'>");
return;
} //将相关的图片上传到@"Image\"路径下
string FileName = "";
string FileName1;
string DPath;
DPath = Server.MapPath("..") + @"\";
DPath = DPath + @"Image\";
if (this.File1.PostedFile.FileName != "")
{
string[] temp = this.File1.PostedFile.FileName.Split('.');
string strHzm = "." + temp[temp.Length - 1]; Guid tmp = Guid.NewGuid();
FileName = tmp.ToString() + strHzm;
FileName1 = DPath + tmp.ToString() + strHzm;
this.File1.PostedFile.SaveAs(FileName1);
if (Session["imgname"] != null)
{
if (File.Exists(DPath + Session["imgname"].ToString()))
{
File.Delete(DPath + Session["imgname"].ToString());
}
}
} //根据标志判断是添加还是修改的操作 保存餐品信息
if (Request.QueryString["ID"] != null)
{
if (FileName == "")
{
DataBase.ExecSql("update spxx set spmc='" + TextBox1.Text + "', spjg=" + this.Textbox2.Text.Trim() + ",spjs='" + this.Textbox3.Text.Trim() + "',sccj='" + this.Textbox4.Text.Trim() + "',spflbh=" + this.Dropdownlist2.SelectedValue + " where spbh=" + Request.QueryString["ID"]);
}
else
{
DataBase.ExecSql("update spxx set spmc='" + TextBox1.Text + "',spjg=" + this.Textbox2.Text.Trim() + ",spjs='" + this.Textbox3.Text.Trim() + "',sccj='" + this.Textbox4.Text.Trim() + "',spflbh=" + this.Dropdownlist2.SelectedValue + ",sptpwjm='" + FileName + "' where spbh=" + Request.QueryString["ID"]);
}
}
else
{
DataBase.ExecSql("insert into spxx(spmc,sptpwjm,spjs,sccj,spflbh,spjg) values('" + this.TextBox1.Text.Trim() + "','" + FileName + "','" + this.Textbox3.Text.Trim() + "','" + this.Textbox4.Text.Trim() + "'," + this.Dropdownlist2.SelectedValue + "," + Textbox2.Text + ")"); }
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