asp.net上传execl文件后,在页面上加载显示。

2016-12-30 09:57:33来源:oschina作者:深圳大道人点击

#region 上传Execl文件
protected void Button1_Click(object sender, EventArgs e)
{
if (FileUpload1.HasFile)
{
string NewFileName = string.Empty;
string ErrorMess = UpLoadFile(FileUpload1, ".xls|.xlsx", 1024 * 5, Server.MapPath("/Report/SocialApply/"), 1, out NewFileName);
if (string.IsNullOrEmpty(ErrorMess))
{
Label1.Text = "√文件上传成功";
ViewState["UpLoadFile"] = "/Report/SocialApply/" + NewFileName;
try
{
FileStream file = new FileStream
(Server.MapPath(ViewState["UpLoadFile"] as string),
FileMode.Open, FileAccess.Read,
FileShare.ReadWrite);
DataTable dt1 = FairHR.Util.XmlExcelReport.ReadExcelToDataTable(file, 0, 0);
ViewState.Add("ViewDT", dt1);
GridView1.DataSource = ViewState["ViewDT"] as DataTable;
GridView1.DataBind();
file.Close();
//Maticsoft.Common.MessageBox.ResponseScript(Page, "$.messager.alert('系统提示', '操作成功!', 'info');");
}
catch
{
Maticsoft.Common.MessageBox.ResponseScript(Page, "$.messager.alert('系统提示', '请重新上传Execl文件再操作', 'warning');");
}
}
else
{
Label1.Text = "×文件上传失败";
}
}
else
{
Label1.Text = "×请先选择上传文件";
}
ScriptManager.RegisterClientScriptBlock(Page, this.GetType(), "idAlert1", "closeLoad();", true);
}
#endregion
#region 上传文件
///
/// 上传文件
///

/// 上传文件
/// 上传文件类型,例如.jpg|.gif|.bmp
/// 限制上传文件大小,单位为k
/// 上传路径,需使用server.mappath
/// 1为自动命名,0用原名
///
public static string UpLoadFile(FileUpload fu, string type, int size, string path, int nametype, out string newFileName)
{
newFileName = null;
string erorr = null;
int Size = fu.PostedFile.ContentLength / 1024;
if (Size > size)
{
erorr = "上传文件太大!";
return erorr;
}
string Type = fu.FileName;
if (Type.IndexOf(".") == -1) { erorr = "上传文件类型有误!"; return erorr; }
Type = Type.Substring(Type.LastIndexOf(".")).ToUpper();
type = type.ToUpper();
if (type.IndexOf(Type) == -1) { erorr = "上传文件类型有误!"; return erorr; }
string filename = "";
if (nametype == 1)
{
string nowdate = DateTime.Now.ToString();
nowdate = nowdate.Replace(":", "").Replace(" ", "").Replace("-", "").Trim();
Random r = new Random();
int a = r.Next(1000);
filename = nowdate + a.ToString() + Type;
newFileName = filename;
}
else
{
filename = fu.FileName;
if (System.IO.File.Exists(path + filename)) { erorr = "此文件名已经存在!"; return erorr; }
}
fu.SaveAs(path + filename);
return erorr;//返回有错的错误信息,没有错误返回null
}
#endregion

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