As bothreader.GetValue(0)andreader.GetValue(reader.GetOrdinal("COLUMN1"))are producing the same output as the previous solution, there is no benchmark for comparison. Reading data from columns by their names (reader.GetValue(reader.GetOrdinal("COLUMN1"))) is preferable over reading data from...
int integerColumnValue = (int)r[i]; And finally, you could use one of the many Get methods that the SqlDataReader offers: int integerColumnValue = r.GetInt(i); These includeGetInt,GetString,GetDoubleetc, all of which accept an integer parameter for the column index. One thing to bear...
Get Client Mac Address in Asp.Net Web Application Get Client pc name Get Column Names in DataSet Get date for every Sunday in a Month (C#) Get file path within project Get form submit response Get Full Path Of File Using Fileupload Control In C# Get hidden field value on server side se...
TheDataReaderobject enables a client to retrieve a read-only, forward-only stream of data from a data source. Results are returned as the query executes and are stored in the network buffer on the client until you request them using theReadmethod of theD...
{ while (reader.Read()) { ... } } C# - SQL Data Reader - handling Null column values, You need to check for IsDBNull : if(!SqlReader.IsDBNull(indexFirstName)) { employee.FirstName = sqlreader.GetString(indexFirstName); }.
Returns this error: at ExcelDataReader.ExcelDataReader`2.GetOrdinal(String name) in C:\\workspace-PR\\ExcelDataReader\\src\\ExcelDataReader\\ExcelDataReader.cs:line 95 at System.Data.SqlClient.SqlBulkCopy.WriteRowSourceToServerCommon(Int32 columnCount) at System.Data.SqlClient.SqlBulkCopy.Write...
However, if I try and work with a smallint value from a SQL database, I cannot get it to work. In the below code, the "Typeclass" column of the SQL database is a "smallint" data type: int mTypeclass; mTypeclass = Int32.Parse(sdrEx.String("Typeclass")); ...
Get Client Mac Address in Asp.Net Web Application Get Client pc name Get Column Names in DataSet Get date for every Sunday in a Month (C#) Get file path within project Get form submit response Get Full Path Of File Using Fileupload Control In C# Get hidden field value on server side se...
However, if I try and work with a smallint value from a SQL database, I cannot get it to work. In the below code, the "Typeclass" column of the SQL database is a "smallint" data type: int mTypeclass; mTypeclass = Int32.Parse(sdrEx.String("Typeclass")); ...