Question

My Scenario,

Im working asp.net vb application
I have set of values to be inserted to Database.But their some fields are optional to be filled

I need to check the textbox empty.if empty i should not enter the value to Database. How to work on this

Answer 1

Use Parameter collection of Command. (I presume that you have a MsSql database).

cmd=new SqlCommand("insert into tableName values (@col1,@col2,@col3)",conn)
If TextBox1.Text.Trim().Length=0 Then
  cmd.Parameters.Add("@col1",SqlDbType.Varchar).Value=DBNull.Value
else
  cmd.Parameters.Add("@col1",SqlDbType.Varchar).Value=TextBox1.Text
End If
...