Parameterized Query '(@FAGRC nchar(3),@FAGRD nchar(1),@FAGRN nvarchar(50),@FAGRU ncha' expects parameter @FAGRC, which was not supplied.

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hello Guys.

need your support again.

I am trying to insert data from datagrid into sql and gets the error after the records have been inserted. the following is the code i am using:

SQL

Dim Insert As New SqlCommand("Insert into FAGR(FAGRC,FAGRD,FAGRN,FAGRU) Values(@FAGRC,@FAGRD,@FAGRN,@FAGRU)", connection)

            Insert.Parameters.Add(New SqlParameter("@FAGRC", SqlDbType.NChar, 3))
            Insert.Parameters.Add(New SqlParameter("@FAGRD", SqlDbType.NChar, 1))
            Insert.Parameters.Add(New SqlParameter("@FAGRN", SqlDbType.NVarChar, 50))
            Insert.Parameters.Add(New SqlParameter("@FAGRU", SqlDbType.NChar, 3))

            For I As Integer = 0 To DataGridView1.Rows.Count-1
                Insert.Parameters(0).Value = DataGridView1.Rows(I).Cells(0).Value
                Insert.Parameters(1).Value = DataGridView1.Rows(I).Cells(1).Value
                Insert.Parameters(2).Value = DataGridView1.Rows(I).Cells(2).Value
                Insert.Parameters(3).Value = DataGridView1.Rows(I).Cells(3).Value
                Insert.ExecuteNonQuery()

            Next

Posted 30-Jan-14 4:08am

atul sharma 5126

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OriginalGriff · Accepted Answer · 2014-01-30T05:02:00

Solution 2

Check your row data: if you have a null value in any row of the first column, you will get this error.

(One way to find out is to put a try...catch block inside the For loop, and put a breakpoint on the exception report - you can then use I to tell which row gives the error.)

Posted 30-Jan-14 5:02am

OriginalGriff

Comments

atul sharma 5126 30-Jan-14 11:48am

The following exception is generated from catch:
Index was out of range. Must be non-negative and less then size of the collection.
Parameter name: index
-------

OriginalGriff 30-Jan-14 12:00pm

So, what does the row look like? Did you check it in the debugger? Are there at least four columns? (Note: don't look at your form to answer that - look at the debugger, as the code could be looking at different data and you need to know that!)

atul sharma 5126 30-Jan-14 11:56am

By breakpoint known: even if 1 record is added, the loop is moving twice and each time the exception is generated

atul sharma 5126 30-Jan-14 12:12pm

FAGRD was not getting value so i changed the parameters to:
Insert.Parameters.Add(New SqlParameter("@FAGRD", "Y"))

but still the same error

atul sharma 5126 30-Jan-14 12:19pm

I am able to insert the data in database by following changes. but after pressing ok on error

For I As Integer = 0 To DataGridView1.Rows.Count - 1
Try
Insert.Parameters(0).Value = DataGridView1.Rows(I).Cells(0).Value

Insert.Parameters(2).Value = DataGridView1.Rows(I).Cells(1).Value
Insert.Parameters(3).Value = DataGridView1.Rows(I).Cells(2).Value
vartemp1 = Insert.ExecuteNonQuery()