check case sensitive in login page

[successalways]

Private Sub cmdLogin_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles cmdLogin.Click

'Declare connection string and assign
'a value to it.
Dim str1 As String = "Data Source=PROSERVER;" & _
"Initial Catalog=SqlMagMemberApp;" & _
"Integrated Security=SSPI"

'Instantiate a connection.
Dim cnn1 As SqlClient.SqlConnection = _
New SqlClient.SqlConnection(str1)
cnn1.Open()

'Declare command to validate MemberID and
'password.
Dim cmd1 As SqlClient.SqlCommand = cnn1.CreateCommand
cmd1.CommandType = CommandType.StoredProcedure
cmd1.CommandText = "IsValidMember"
Dim prm1 As SqlClient.SqlParameter = _
cmd1.Parameters.Add("@OK", SqlDbType.Int)
prm1.Direction = ParameterDirection.ReturnValue

Dim prm2 As SqlClient.SqlParameter = _
cmd1.Parameters.Add("@inID", SqlDbType.NVarChar, 8)
prm2.Direction = ParameterDirection.Input

Dim prm3 As SqlClient.SqlParameter = _
cmd1.Parameters.Add("@inpassword", SqlDbType.NVarChar, 30)
prm3.Direction = ParameterDirection.Input

Dim prm4 As SqlClient.SqlParameter = _
cmd1.Parameters.Add("@inMemberlw", SqlDbType.NVarChar, 15)
prm4.Direction = ParameterDirection.Input

prm2.Value = txtMemberID.Text
prm3.Value = txtPassword.Text
prm4.Value = listMemberLW.Text

cmd1.ExecuteNonQuery()

'Accept the return value:
'1 if valid
'0 otherwise
Dim count As Byte = _
CByte(cmd1.Parameters("@OK").Value)
If count = 1 Then
Session("MemberID") = txtMemberID.Text
Session("MemberPW") = txtPassword.Text
Session("LoggedIn") = True
Response.Redirect("nextpage.aspx")

'
this is my code i have used storedprocedure to check id and password..
but the fault is the password and id accepts if typed with capslock on or off..
i hope u understand my query

[successalways]

please i need the result as quickly as possible

[ericstenson]

generally, people are only concerned with case sensitivity for passwords, not username. so what i like to do is
Dim SELSTRING as String

SELSTRING = "Select PASSWORD from DBUSERS where username = '" & textbox1.text & "' AND Password = '" & textbox2.text & "'"
Dim DBCOMMAND as new data.sqlclient.command(SELSTRING, conn1)

dim pw as string
conn1.open
pw = DBCOMMAND.executescalar
conn1.close

This returns the password as a string
now, you can compare the passwords

if textbox2.text = pw then
WHATEVER YOU WANT IF OK
else
textbox2.backcolor = ...red or whatever
end if
pw =

[SolTec]

please i need the result as quickly as possible

You can use the string conversion in VB.NET ToUpper to convert to all upper case, before comparing to the database, or use ToProper which will capitolize the first letter of each string of text, but not really good, if you have a name like McDoogal or some other upper and lower case and finally you could use the ToLower and make all your letter lower and it won't matter how they enter it into the textboxes.

You can also use the same feature when they create their user names and passwords to store the data in your database properly for comparisons.

txtName.ToUpper = all UPPER case letters
txtName.ToLower = all lower case letters
txtName.ToProper = all Proper Case letter