This question already has answers here:开发者_开发百科 Closed 11 years ago. Possible Duplicate: What is the best way to deal with DBNull's
I have a SQLDataReader that returns three integers. However, there are occasions when two of the integers will return null values.
What is the best way of rewriting these (erroneous) lines? bool? result = dr[\"result\"] == DBNull.Value ? null : Convert.ToInt32(dr[\"result\"]);
New to Linq, so apologies if this is basic. This query is throwing up the error {\"Cannot cast DBNull.Value to type \'System.Int64\'. Please use a nullable type.\"} when I enumerate the results.
I want to create a stored procedure (in SQL Server 2008 R2) that will update a record in a table based on the table\'s PK.
Is there an operator or built in function to simplyfy this: myVal = object1.object2.something(a,b).dataColumn.toString()==\"\"?object1.object2.something(a,b).dataColumn.toString():\"-\";
This question already has answers here: Closed 11 years ago. Possible Duplicate: What is the point of DBNull?
IBM Informix SDK: Statement: Update mytable set myblobcolumn = ? where myid = 1; using (IfxConnection conn = GetIfxConnection())
I have a DropDownList trying to bind to DbNull and it\'s not happy about it. I\'ve seen advice about creating a ListItem wi开发者_JAVA百科th value=\" \" but this isn\'t working.
I\'m trying to populate a class object with values from a database table. The someObject.Property field is a nullable int type.
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