我在删除多个Excel数据时发现了一些问题。我有excel数据，它们也显示在datagridview中。
WSID Lokasi Limit
123 A 100
456 B 200
789 C 300
321 D 400
654 E 500
876 F 600
我想根据我在datagridview中检查的复选框删除数据。我发现了一些错误。谁能帮我 ？该错误表示＆＃39; System .__ ComObject＆＃39;不包含＆＃39;包含＆＃39;
的定义或者根据datagridview中的复选框以任何其他方式删除excel中的多个数据？
string lokasifile = @"D:\\Data Pengisian SLA Surabaya\\" + new System.Globalization.CultureInfo("id-ID").DateTimeFormat.GetDayName(DateTime.Now.DayOfWeek) + "_" + System.DateTime.Now.Date.ToString("dd MMM yyyy", new System.Globalization.CultureInfo("id-ID")) + ".xlsx";
private void DeleteSelectedDataBtn_Click(object sender, EventArgs e)
{
foreach(DataGridViewRow item in JadwalisiGV.Rows )
{
if (Convert.ToBoolean(item.Cells[0].Value) == true) //Convert.ToBoolean(item.Cells[0].Value) == true
{
Excel.Application xlApp;
Excel.Workbook xlWorkBook;
Excel.Worksheet xlWorkSheet;
string str;
xlApp = new Excel.Application();
xlWorkBook = xlApp.Workbooks.Open(lokasifile, 0, true, 5, "", "", true, Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0);
xlWorkSheet = xlWorkBook.Sheets["Schedule"];
for(int i = 1; i <=100; i++)
{
if (!xlWorkSheet.Cells[i, 1].Contains(item.Cells[2].Value.ToString())) //It says 'System.__ComObject' does not contain a definition for 'Contains'
{
((Excel.Range)xlWorkSheet.Rows[i]).Delete(xlWorkSheet);
MessageBox.Show("Data berhasil dihapus !");
}
}
}
}
}
答案 0 :(得分：0)
.Cells会返回一个范围。 Range对象没有包含的方法， 通过使用范围上的value属性获取值，然后使用.net字符串函数包含。
答案 1 :(得分：0)
您好我发给您一个c＃函数，它从Excel文件导入数据并将它们保存在数据库中。我希望这会对你有所帮助。
[HttpPost]
public ActionResult Import(HttpPostedFileBase excelFile)
{
if (!User.Identity.IsAuthenticated)
return RedirectToAction("Login", "Account");
Domain.User meu = serv.GetUserByLogin(User.Identity.Name);
ViewBag.roleid = meu.RoleId;
NormesSkills ns = serv.GetNormes();
if (meu.RoleId == 1)
{
ViewBag.startBegin = ns.beginnerStart;
ViewBag.endbegin = ns.beginnerEnd;
ViewBag.startinter = ns.IntermedStart;
ViewBag.endinter = ns.IntermedEnd;
ViewBag.startadv = ns.AdvStart;
ViewBag.endadv = ns.AdvEnd;
}
List<Domaine> domaines = new List<Domaine>();
List<User> users = new List<Domain.User>();
if (meu.RoleId == 1)
{
domaines = serv.getAlldomains();
users = serv.GetAllUsers().ToList();
users.Remove(meu);
}
else
{
domaines = meu.team.Domaines.ToList();
if (meu.RoleId == 2)
{
Team t = serv.GetTeamByUserName(meu.UserName);
domaines.AddRange(t.Domaines.ToList());
users = t.Users.ToList();
users.Add(meu);
}
if (meu.RoleId == 3)
users.Add(meu);
}
List<string> d = domaines.Select(x => x.DomainName).Distinct().ToList();
int l = users.Count + 1;
int c = d.Count + 1;
string[,] matrix = new string[l, c];
string[,] matrixUpdate = new string[l, c];
int k = 1;
foreach (var dd in d)
{
matrix[0, k] = dd;
k++;
}
int j = 0;
for (int i = 1; i < l; i++)
{
User u = users[i - 1];
serv.setSkills(u);
//foreach(var u in users)
//{
matrix[i, 0] = u.FirstName + " " + u.LastName;
for (int y = 1; y < c; y++)
{
bool verifSkillUsr = serv.VerifSkillUsr(d[y - 1], u);
if (verifSkillUsr == true)
{
Skill sk = serv.getSkillUser(d[y - 1], u);
if (sk.Evaluation == "0000") sk.Evaluation = "";
if (sk.Evaluation == "Beg") sk.Evaluation = "B";
if (sk.Evaluation == "Int") sk.Evaluation = "I";
if (sk.Evaluation == "Adv") sk.Evaluation = "A";
matrix[i, y] = sk.Evaluation;
matrixUpdate[i, y] = sk.update.ToString();
}
else
{
matrix[i, y] = "";
}
}
//}
}
TempData["skills"] = matrix;
TempData["skillsUpdate"] = matrixUpdate;
if ((excelFile == null) || (excelFile.ContentLength == 0))
{
ViewBag.error = "No file";
return View("Index");
}
else
{
if ((excelFile.FileName.EndsWith("xls")) || (excelFile.FileName.EndsWith("xlsx")))
{
string path="";
DateTime date = DateTime.Now;
if (excelFile.FileName.EndsWith("xls"))
path = Server.MapPath("~/Content/Excel/"+date.ToString().Replace("/","-").Replace(":","-")+".xls");
else
path = Server.MapPath("~/Content/Excel/" + date.ToString().Replace("/", "-").Replace(":", "-") + ".xlsx");
string[] filePaths = Directory.GetFiles(Server.MapPath("~/Content/Excel/"));
foreach (string filePath in filePaths)
{
try
{
System.IO.File.Delete(filePath);
}
catch { }
}
//if (System.IO.File.Exists(path))
// System.IO.File.Delete(path);
excelFile.SaveAs(path);
// Reading data from excel
Microsoft.Office.Interop.Excel.Application application = new Microsoft.Office.Interop.Excel.Application();
Microsoft.Office.Interop.Excel.Workbook workbook = application.Workbooks.Open(path);
Microsoft.Office.Interop.Excel.Worksheet worksheet = workbook.ActiveSheet;
Microsoft.Office.Interop.Excel.Range range = worksheet.UsedRange;
if (range.Rows.Count < 2)
{
ViewBag.errorin = "File does not contain users";
return View("Index");
}
if (range.Columns.Count < 2)
{
ViewBag.errorin = "File does not contain domains";
return View("Index");
}
int cols=range.Columns.Count;
int lines=range.Rows.Count;
List<string> domains=new List<string>();;
for(int i=2;i <=cols;i++)
{
string dom = ((Microsoft.Office.Interop.Excel.Range)range.Cells[1, i]).Text.ToString() ;
if ((dom != "") && (dom != null))
{
dom = dom.ToLower();
domains.Add(dom);
}
}
domains = domains.Distinct().ToList();
foreach(string dd in domains)
{
string dds = dd.Trim();
bool h = serv.verifExistenceDomaine(dds);
if(h==false)
{
if(meu.RoleId==2)
{
serv.AddDomaine(dds, 0, serv.GetTeamByUserName(meu.UserName).Team_Id);
}
else
{
foreach (var t in serv.GetAllTeams())
{ serv.AddDomaine(dds, 0, t.Team_Id); }
}
}
}
for (int row = 2; row <= range.Rows.Count;row++ )
{
List<string> verifinsertion = new List<string>();
// string dom = ((Microsoft.Office.Interop.Excel.Range)range.Cells[0, i]).Text;
string username = ((Microsoft.Office.Interop.Excel.Range)range.Cells[row, 1]).Text.ToString();
User u = serv.getUserByFLName(username);
if(u!=null)
{
Team t = serv.GetTeamByUserName(meu.UserName);
for(int i=2;i<=cols;i++)
{
bool trouve = false;
if (meu.RoleId == 1)
{
foreach(var domaineeee in verifinsertion)
{
if (domaineeee == ((Microsoft.Office.Interop.Excel.Range)range.Cells[1, i]).Text.ToString())
{
trouve = true;
}
}
if (trouve == false)
{
serv.updateOrInsertSkill(u, ((Microsoft.Office.Interop.Excel.Range)range.Cells[1, i]).Text.ToString(), ((Microsoft.Office.Interop.Excel.Range)range.Cells[row, i]).Text.ToString());
verifinsertion.Add(((Microsoft.Office.Interop.Excel.Range)range.Cells[1, i]).Text.ToString());
}
}
else
{
foreach(var domaineeee in verifinsertion)
{
if (domaineeee == ((Microsoft.Office.Interop.Excel.Range)range.Cells[1, i]).Text.ToString())
{
trouve = true;
}
}
if (trouve == false)
{
serv.updateOrInsertSkillTeam(t,u, ((Microsoft.Office.Interop.Excel.Range)range.Cells[1, i]).Text.ToString(), ((Microsoft.Office.Interop.Excel.Range)range.Cells[row, i]).Text.ToString());
verifinsertion.Add(((Microsoft.Office.Interop.Excel.Range)range.Cells[1, i]).Text.ToString());
}
}
}
}
}
return RedirectToAction("Index", "Skills");
}
else
{
ViewBag.error = "File type error";
return View("Index");
}
}
}