troubleshooting Question

SQL Insert and Update Commands in

Avatar of arozzy
arozzy asked on
Microsoft SQL Server.NET Programming
11 Comments1 Solution594 ViewsLast Modified:
Hi Experts,

I have some trouble with sql commands in,  

On a winform, I am trying to insert new data to Ms sql database table, each data has its own areas.

my codes,

    Dim adptr2 As New SqlDataAdapter("select * from  STOKANA", baglan)
    Dim stkekle As New SqlCommand("insert into STOKANA values(@SN,@SA,@SM,@SB,@EM,@RD)", baglan)
    Dim ds1 As New DataSet

button click event
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        If TextBox1.Text = "" Then
            MessageBox.Show("Stok adi giriniz.", "STOK ADI", MessageBoxButtons.OK, MessageBoxIcon.Warning)
        ElseIf TextBox2.Text = "" Then
            MessageBox.Show("Stok miktarini giriniz.", "STOK MIKTARI", MessageBoxButtons.OK, MessageBoxIcon.Warning)
        ElseIf ComboBox1.Text = "" Then
            MessageBox.Show("Stok birimini giriniz.", "STOK BIRIMI", MessageBoxButtons.OK, MessageBoxIcon.Warning)
        ElseIf TextBox4.Text = "" Then
            MessageBox.Show("Stok miktarini giriniz.", "STOK MIKTARI", MessageBoxButtons.OK, MessageBoxIcon.Warning)

                stkekle.Parameters.AddWithValue("SN", TextBox10.Text)
                stkekle.Parameters.AddWithValue("SA", TextBox1.Text)
                stkekle.Parameters.AddWithValue("SM", TextBox2.Text)
                stkekle.Parameters.AddWithValue("SB", ComboBox1.Text)
                stkekle.Parameters.AddWithValue("EM", TextBox4.Text)
                stkekle.Parameters.AddWithValue("RD", CheckBox1.CheckState)
                adptr2.InsertCommand = stkekle
                MsgBox("Kayit eklendi !!")
            Catch ex As Exception
            End Try
            Call veri1()
            End If
    End Sub

after adding first data row on sql table, I could not add second data row  and the error massage is that "sql data sqlcient sql expection (0x80131904). The variable name '@SN' has already been declared.  

The update command

I am using datagrid to show user which data he wanna update and data is going to on  textboxes and checkboxes on the form by clicking on selected datagird row object.
when updating the data,  the error massage is that sql data sqlcient sql expection (0x80131904). Error converting data type nvarchar to numeric.

Please help

Thank you

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