Hello,
I am trying to change a column from "Null" to "1" in the SQL database. I have tried many things but everything has failed so far. I have tried foreach statements:
foreach (DataRow dr in dt.Rows) // search whole table
{
if (dr["ColumnName"] == null)
{
dr["ColumnName"] = "1";
break;
}
}
But this won't even enter into the foreach statement when I step line by line through the code.
I have also tried:
if (dt.Rows[0].IsNull(0))
{
MessageBox.Show("Is Null!");
}
(The messagebox is to test if it really works) This keeps giving me an error and will not show the messagebox. The error I get is that "There is no row at position 0." But I am looking right at the database and it has a record in there. So I am at a loss of what needs to be done, especially since I have a record in the database that has a null value in the column.
Any help would be much appreciated.