private bool CheckData()
{
if (txt_UserId.Text.Trim().Equals(string.Empty))
{
MessageBox.Show("Please Input the User ID", "Prompt", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txt_UserId.Focus();
return(false);
}
if (false == ConvertObject.IsInt(txt_UserId.Text.Trim()))
{
MessageBox.Show("User ID can only enter a number", "Prompt", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txt_UserId.Focus();
return(false);
}
foreach (ListViewItem lvi in lvw_UserList.Items)
{
if (txt_UserId.Text.Trim().Equals(lvi.SubItems[1].Text))
{
MessageBox.Show("The user ID already exists, please modify", "Prompt", MessageBoxButtons.OK,
MessageBoxIcon.Warning);
txt_UserId.Focus();
return(false);
}
}
if (txt_UserName.Text.Trim().Equals(string.Empty))
{
MessageBox.Show("Please input the user name", "Prompt", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txt_UserName.Focus();
return(false);
}
return(true);
}