Show some error in VB.NET 2010 please help me....

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SQL-Server-2008R2

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get some error i don't understand the what is actual problem please help me
I want to show data when i on the form from menu
in the data table only one row available all time this bank details of company which is print on tax invoice so, only one bank required.
if user enter on bank name then getting some error that for i add the row count in stored procedure

and call the procedure in from loading and fix the id 1 in a label

please help me

0703 2018 — imgbb.com[^]

What I have tried:

Vb.net

Public Sub GetBankDetails()
        dt = lblbankid.Text
        objcombankdetails.combankid = lblbankid.Text
        ds = objcombankdetails.GetComBankDetailsBYId() 'change
        If ds.Tables(0).Rows(0).Item(0) = 1 Then
            MessageBox.Show("No Bank Name Save....")
            txtcombankname.Focus()
        End If
        If ds.Tables(0).Rows(0).Item(0) = 2 Then
            ' MessageBox.Show("Successfully add a new HSN...", "", MessageBoxButtons.OK)
        End If
        ' Label1.Text = ds.Tables(0).Rows(0).Item("combankid")
        txtcombankname.Text = If(IsDBNull(ds.Tables(0).Rows(0).Item("combankname")), "", ds.Tables(0).Rows(0).Item("combankname"))
        txtcombankacc.Text = If(IsDBNull(ds.Tables(0).Rows(0).Item("comaccnumber")), "", ds.Tables(0).Rows(0).Item("comaccnumber"))
        txtcombankIFSC.Text = If(IsDBNull(ds.Tables(0).Rows(0).Item("combankIFSC")), "", ds.Tables(0).Rows(0).Item("combankIFSC"))
        txtcombankBranch.Text = If(IsDBNull(ds.Tables(0).Rows(0).Item("combranchname")), "", ds.Tables(0).Rows(0).Item("combranchname"))
        txtcombankAddress.Text = If(IsDBNull(ds.Tables(0).Rows(0).Item("combankadd")), "", ds.Tables(0).Rows(0).Item("combankadd"))

        txtcombankname.Focus()

    End Sub

Stored Procedure

ALTER proc [dbo].[P_GetComBankDetailsBYId]-- 1
@combankid int  
         
As


DECLARE @retVal int
SELECT  @retVal = COUNT(*) FROM tbl_com_bankdetails
--WHERE COLUMN = 'Some Value'

IF (@retVal <1)
BEGIN
 select 1 /*Error*/  
return 
END
ELSE
BEGIN
 select combankname,comaccnumber,combranchname,combankadd,combankIFSC from tbl_com_bankdetails where combankid=@combankid
select 2 /*Success*/  
END

Posted 6-Mar-18 21:14pm

Jayanta Modak

Updated 6-Mar-18 22:30pm

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Comments

CHill60 7-Mar-18 3:52am

Surely ds.Tables(0) is returning the result of the query "select combankname, ..." so you are trying to compare a string (combankname) with 1 - which is not allowed.
Use your debugger to examine ds

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Maciej Los · Answer 1 · 2018-03-06T22:31:00

Your stored procedure is wrong!
It should be shorten to:

SQL

ALTER proc [dbo].[P_GetComBankDetailsBYId]
    @combankid int  
AS

SET NOCOUNT ON;

SELECT combankname,comaccnumber,combranchname,combankadd,combankIFSC
FROM tbl_com_bankdetails
WHERE combankid=@combankid

END

Then, you need to get data from database:

VB.NET

Dim sqlConnection1 As New SqlConnection("Your Connection String")
Dim cmd As New SqlCommand
Dim reader As SqlDataReader
DIm dt As New DataTable()

cmd.CommandText = "StoredProcedureName"
cmd.CommandType = CommandType.StoredProcedure
cmd.Connection = sqlConnection1

sqlConnection1.Open()

reader = cmd.ExecuteReader()
'get data into DataTable object
dt.Load(reader)

'populate data if there's at least one row :)
If dt.Rows.Count()>=1 Then
    'here your code
    txtcombankname.Text = dt.Rows(0).Item("combankname")
    'rest of your code
End If

sqlConnection1.Close()

For further details, please see: How to: Execute a Stored Procedure that Returns Rows[^]