Question

有没有办法使用EPPlus锁定或读取一列或一组单元格？我已尝试将下面的代码分开并一起使用，但似乎都没有达到预期的效果。整个工作表都被锁定（如果我包含IsProtected语句）或者根本没有。

        ws.Protection.IsProtected = true;
        ws.Column(10).Style.Locked = true;

修改

这是我控制器的整个代码块

        FileInfo newFile = new FileInfo("C:\\Users\\" + User.Identity.Name + "\\Desktop" + @"\\ZipCodes.xlsx");

        ExcelPackage pck = new ExcelPackage(newFile);

        var ws = pck.Workbook.Worksheets.Add("Query_" + DateTime.Now.ToString());

        //Headers
        ws.Cells["A1"].Value = "ChannelCode";
        ws.Cells["B1"].Value = "DrmTerrDesc";
        ws.Cells["C1"].Value = "IndDistrnId";
        ws.Cells["D1"].Value = "StateCode";
        ws.Cells["E1"].Value = "ZipCode";
        ws.Cells["F1"].Value = "EndDate";
        ws.Cells["G1"].Value = "EffectiveDate";
        ws.Cells["H1"].Value = "LastUpdateId";
        ws.Cells["J1"].Value = "ErrorCodes";
        ws.Cells["K1"].Value = "Status";
        ws.Cells["I1"].Value = "Id";

        //Content
        int i = 2;
        foreach (var zip in results)
        {
            ws.Cells["A" + i.ToString()].Value = zip.ChannelCode;
            ws.Cells["B" + i.ToString()].Value = zip.DrmTerrDesc;
            ws.Cells["C" + i.ToString()].Value = zip.IndDistrnId;
            ws.Cells["D" + i.ToString()].Value = zip.StateCode;
            ws.Cells["E" + i.ToString()].Value = zip.ZipCode;
            ws.Cells["F" + i.ToString()].Value = zip.EndDate.ToShortDateString();
            ws.Cells["G" + i.ToString()].Value = zip.EffectiveDate.ToShortDateString();
            ws.Cells["H" + i.ToString()].Value = zip.LastUpdateId;
            ws.Cells["J" + i.ToString()].Value = zip.ErrorCodes;
            ws.Cells["K" + i.ToString()].Value = zip.Status;
            ws.Cells["I" + i.ToString()].Value = zip.Id;

            i++;
        }

        //ws.Protection.IsProtected = true;
        ws.Column(10).Style.Locked = true;

        return new ExcelResult
            {
                FileName = "ZipCodes.xlsx",
                Package = pck
            };

ExcelResult

public class ExcelResult : ActionResult
{
    public string FileName { get; set; }
    public ExcelPackage Package { get; set; }

    public override void ExecuteResult(ControllerContext context)
    {
        context.HttpContext.Response.Buffer = true;
        context.HttpContext.Response.Clear();
        context.HttpContext.Response.AddHeader("content-disposition", "attachment; filename=" + FileName);
        context.HttpContext.Response.ContentType = "application/vnd.ms-excel";
        context.HttpContext.Response.BinaryWrite(Package.GetAsByteArray());
    }
}

第二次修改

我尝试通过将IsProtected值设置为true来保护工作表，然后为除最后一列之外的每一列设置Locked属性为false。电子表格不仅不是只读模式，而且我可以编辑每列中的数据。

我注意到，但是我无法自己调整实际列的大小，所以也许这就是我正在做的事情。但是，我想锁定列中的每个单元格，因此无法输入新数据。

        for (int a = 1; a < 10; a++)
        {
            ws.Column(a).Style.Locked = false;
        }
        ws.Protection.IsProtected = true;

Answer 1

我正在添加两个WorkSheets，需要保护除第三个索引之外的所有列。

这对我有用：）

worksheet2.Cells["A1"].LoadFromDataTable(dt_Data, true); //------load data from datatable
worksheet2.Protection.IsProtected = true; //--------Protect whole sheet
worksheet2.Column(3).Style.Locked = false; //-------Unlock 3rd column

Answer 2

EPPlus可能默认为所有单元格被锁定，在这种情况下，您需要为其他将Locked属性设置为false列，然后将IsProtected设置为true。

Answer 3

以为我会发布解决方案，以防它帮助其他人。我必须将整个工作表设置为受保护，但为每个非Locked字段将Id属性设置为false。

        //Content
        int i = 2;
        foreach (var zip in results)
        {
            //Set cell values
            ws.Cells["A" + i.ToString()].Value = zip.ChannelCode;
            ws.Cells["B" + i.ToString()].Value = zip.DrmTerrDesc;
            ws.Cells["C" + i.ToString()].Value = zip.IndDistrnId;
            ws.Cells["D" + i.ToString()].Value = zip.StateCode;
            ws.Cells["E" + i.ToString()].Value = zip.ZipCode;
            ws.Cells["F" + i.ToString()].Value = zip.EndDate.ToShortDateString();
            ws.Cells["G" + i.ToString()].Value = zip.EffectiveDate.ToShortDateString();
            ws.Cells["H" + i.ToString()].Value = zip.LastUpdateId;
            ws.Cells["I" + i.ToString()].Value = zip.ErrorCodes;
            ws.Cells["J" + i.ToString()].Value = zip.Status;
            ws.Cells["K" + i.ToString()].Value = zip.Id;

            //Unlock non-Id fields
            ws.Cells["A" + i.ToString()].Style.Locked = false;
            ws.Cells["B" + i.ToString()].Style.Locked = false;
            ws.Cells["C" + i.ToString()].Style.Locked = false;
            ws.Cells["D" + i.ToString()].Style.Locked = false;
            ws.Cells["E" + i.ToString()].Style.Locked = false;
            ws.Cells["F" + i.ToString()].Style.Locked = false;
            ws.Cells["G" + i.ToString()].Style.Locked = false;
            ws.Cells["H" + i.ToString()].Style.Locked = false;
            ws.Cells["I" + i.ToString()].Style.Locked = false;
            ws.Cells["J" + i.ToString()].Style.Locked = false;

            i++;
        }

        //Since we have to make the whole sheet protected and unlock each cell 
        //to allow for editing this loop is necessary
        for (int a = 65000 - i; i < 65000; i++)
        {
            //Unlock non-Id fields
            ws.Cells["A" + i.ToString()].Style.Locked = false;
            ws.Cells["B" + i.ToString()].Style.Locked = false;
            ws.Cells["C" + i.ToString()].Style.Locked = false;
            ws.Cells["D" + i.ToString()].Style.Locked = false;
            ws.Cells["E" + i.ToString()].Style.Locked = false;
            ws.Cells["F" + i.ToString()].Style.Locked = false;
            ws.Cells["G" + i.ToString()].Style.Locked = false;
            ws.Cells["H" + i.ToString()].Style.Locked = false;
            ws.Cells["I" + i.ToString()].Style.Locked = false;
            ws.Cells["J" + i.ToString()].Style.Locked = false;                
        }

        //Set worksheet protection attributes
        ws.Protection.AllowInsertRows = true;
        ws.Protection.AllowSort = true;
        ws.Protection.AllowSelectUnlockedCells = true;
        ws.Protection.AllowAutoFilter = true;
        ws.Protection.AllowInsertRows = true;
        ws.Protection.IsProtected = true;

Answer 4

所以我提到了这个问题，这就是我如何进行锁定。

worksheet.Protection.IsProtected = true;
//I'm creating a template for users to fill in data.These headers
//will come from database tables later on.
//So tableHeaders is an array of strings
for (int i = 1; i <= tableHeaders.Length; i++)
            {
                worksheet.Column(i).Style.Locked = false;
            }
//And then lock the first row.
worksheet.Row(1).Style.Locked = true;
//Additionally don't allow user to change sheet names
excelPackage.Workbook.Protection.LockStructure = true;

Answer 5

ws.Column(10).Style.Locked = true;

应该这样做。请检查代码的其余部分是否有错误：）

Answer 6

先锁定整张纸，然后解锁要解锁的单元格。

workSheet.Protection.IsProtected = true;

workSheet.Cells[2, 3, pocDeatils.CityMaster.Rows.Count + 1, 4].Style.Locked = false;

有关详细信息，请参阅以下链接： https://epplus.codeplex.com/SourceControl/latest#SampleApp/Sample6.cs

Answer 7

为了锁定某些列或单元格组，您需要首先知道哪些列需要可编辑。在第二个参数'new ExcelAddress（）'中添加逗号分隔[当可编辑列的顺序不同时，逗号分隔很有用]

例如：我只想锁定M列 ws.ProtectedRanges.Add（“ editable”，new ExcelAddress（“ A3：A25，L3：L25，N3：N25”））;

然后第二部分是保护整个工作表 ws.Protection.IsProtected = true;

使用EPPlus使列或单元格只读

7 个答案: