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[英]System.IndexOutOfRangeException: Cannot find column XYZ sorting GridView
[英]'System.IndexOutOfRangeException' Cannot find column 12
錯誤是找不到第12列。但是我已經仔細檢查了拼寫是否與數據庫中的拼寫相同。 我嘗試了一個只有前3列的小樣本,它起作用了。 但是,當我嘗試使用需要上傳的文件時,出現了錯誤。
我如何解決它?
DataTable dt = new DataTable();
using (OleDbConnection con = new OleDbConnection(string.Format(CSV_CONNECTIONSTRING, csvPath)))
{
using (OleDbDataAdapter da = new OleDbDataAdapter("SELECT * FROM ["+File_Name+"]", con))
{
da.Fill(dt);
}
}
try
{
using (SqlBulkCopy bulkCopy = new SqlBulkCopy(ConString))
{
bulkCopy.ColumnMappings.Add(0, "medicine_id");
bulkCopy.ColumnMappings.Add(1, "category_id");
bulkCopy.ColumnMappings.Add(2, "subcategory_id");
bulkCopy.ColumnMappings.Add(3, "med_name");
bulkCopy.ColumnMappings.Add(4, "brand");
bulkCopy.ColumnMappings.Add(5, "form_id");
bulkCopy.ColumnMappings.Add(6, "poison_schedule");
bulkCopy.ColumnMappings.Add(7, "strength");
bulkCopy.ColumnMappings.Add(8, "image");
bulkCopy.ColumnMappings.Add(9, "quantity");
bulkCopy.ColumnMappings.Add(10, "unit");
bulkCopy.ColumnMappings.Add(11, "threshold");
bulkCopy.ColumnMappings.Add(12, "price");
bulkCopy.ColumnMappings.Add(13, "manufacturer");
bulkCopy.ColumnMappings.Add(14, "special_instructions");
bulkCopy.ColumnMappings.Add(15, "active1");
bulkCopy.ColumnMappings.Add(16, "active1_strength");
bulkCopy.ColumnMappings.Add(17, "active2");
bulkCopy.ColumnMappings.Add(18, "active2_strength");
bulkCopy.ColumnMappings.Add(19, "active3");
bulkCopy.ColumnMappings.Add(20, "active3_strength");
bulkCopy.ColumnMappings.Add(21, "active4");
bulkCopy.ColumnMappings.Add(22, "active4_strength");
bulkCopy.DestinationTableName = "medicine";
bulkCopy.BatchSize = dt.Rows.Count;
bulkCopy.WriteToServer(dt);
bulkCopy.Close();
}
}
catch (System.Exception ex)
{
throw ex;
}
據我所見,SqlBulkCopy會忽略空值,如果您要帶回空值,這應該可以解決問題。
編輯:感謝Igor Labutin,發帖前我沒有看到他的評論。
using (SqlBulkCopy bulkCopy = new SqlBulkCopy(ConString, SqlBulkCopyOptions.KeepNulls))
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