Object reference not set to an instance of an object.
hi can someone please help me with this.. i kept getting this error
Object reference not set to an instance of an object.
i am just beginning to write my first program and still learning.. i know that i have to instantiate my dataset and i guess i did instantiate..
the coding is as follows
public static DataSet ds;
private void BtnLogin_Click(object sender, EventArgs e)
{
CustomerMS.localhost.Service1 cms = new CustomerMS.localhost.Service1();
ds = cms.GetUserInfo(txtUser.Text.Trim(), txtPwd.Text.Trim());
uid = txtUser.Text.Trim();
pwd = txtPwd.Text.Trim();
if ((int)ds.Tables["Check User"].Rows[0].ItemArray[0] > 0)
{
this.Hide();
frmMain main = new frmMain();
main.Show();
}
else
{
MessageBox.Show("You didnt enter the right User ID or Password", "Invalid User ID or Password", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
and i am using web services and when i tried to retrive the data direct via web services i get the correct data but when i tried to retrive via my client, i saw the ds.tables have the Data in it but in ds.tables["check user"] it just shows null.
whats going on? please help..