fixed excel file manager delete unused rows

Author: morrisjdev

Example/Data/Context.cs

@@ -1,6 +1,8 @@
 using Example.Data.Entities;
 using FileContextCore;
+using FileContextCore.StoreManager;
 using Microsoft.EntityFrameworkCore;
+using OfficeOpenXml;
 
 namespace Example.Data
 {
@@ -41,6 +43,7 @@ protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
             // optionsBuilder.UseFileContextDatabase(location: @"D:\t");
 
             //Excel
+            // ExcelPackage.LicenseContext = LicenseContext.NonCommercial;
             // optionsBuilder.UseFileContextDatabase<EXCELStoreManager>(databaseName: "test");
         }
 

Example/Data/NewContext.cs

@@ -1,6 +1,8 @@
 using Microsoft.EntityFrameworkCore;
 using Example.Data.Entities;
 using FileContextCore;
+using FileContextCore.StoreManager;
+using OfficeOpenXml;
 
 namespace Example.Data
 {
@@ -35,7 +37,8 @@ protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
             //optionsBuilder.UseFileContext("csv");
 
             //Excel
-            //optionsBuilder.UseFileContext("excel");
+            // ExcelPackage.LicenseContext = LicenseContext.NonCommercial;
+            // optionsBuilder.UseFileContextDatabase<EXCELStoreManager>(databaseName: "excel");
         }
 
         protected override void OnModelCreating(ModelBuilder modelBuilder)

FileContextCore/StoreManager/EXCELStoreManager.cs

@@ -173,7 +173,10 @@ private void DeleteUnusedRows(int lastRow)
             if (_worksheet.Dimension.Rows >= lastRow)
             {
                 int count = _worksheet.Dimension.Rows - lastRow;
-                _worksheet.DeleteRow(lastRow + 1, count);
+                if (count > 0)
+                {
+                    _worksheet.DeleteRow(lastRow + 1, count);
+                }
             }
         }
     }