/// <summary>
/// Bind datasource and refresh display of rows in the DataGridView.
/// Also attempts to save some settings for each subsequent Bind call.
/// </summary>
public void Bind()
{
int iCurrRow = 0;
try
{
// Save the current Row index
iCurrRow = this.dataGridView1.CurrentRow.Index;
// Save our Column widths
for (int i = 0; i < this.asGridHeaders.Length; i++)
this.aiGridColWidths[i] = this.dataGridView1.Columns[i].Width;
}
catch
{
}
try
{
// Reset the DataSet and assign as the data source..
this.dsGrid.Clear();
if (TableHelper.FillDataSet(this.dsGrid, this.sGridTable, this.asGridColumns, this.sGridOrderBy, this.sGridWhere))
{
// Set row filter if applicable
if (this.sGridFilter != string.Empty)
this.dsGrid.Tables[0].DefaultView.RowFilter = this.sGridFilter;
else
this.dsGrid.Tables[0].DefaultView.RowFilter = null;
// Bind data source
this.dataGridView1.DataSource = this.dsGrid.Tables[0].DefaultView;
}
// Set Column header and format
for (int i = 0; i < this.asGridHeaders.Length; i++)
{
this.dataGridView1.Columns[i].HeaderText = this.asGridHeaders[i];
if (this.dataGridView1.Columns[i].ValueType.ToString().Contains("DateTime"))
this.dataGridView1.Columns[i].DefaultCellStyle.Format = "dd/MM/yyyy";
}
// Set Column widths (NB: width=0 will hide a column)
if (this.bUseDefaultColumnWidths)
{
this.dataGridView1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
}
else
{
for (int i = 0; i < this.aiGridColWidths.Length; i++)
this.dataGridView1.Columns[i].Width = this.aiGridColWidths[i];
}
// Set internal rowcount
this.iGridRowCount = this.dsGrid.Tables[0].DefaultView.Count;
// Set Alternate grid row Color
this.dataGridView1.AlternatingRowsDefaultCellStyle.BackColor = sbDataGridControlConfig.ColorActual;
// Set Binding Navigator data source
BindingSource bs = new BindingSource();
bs.DataSource = this.dataGridView1.DataSource;
this.bindingNavigator1.BindingSource = bs;
// Refresh the grid
this.dataGridView1.Refresh();
// Select initial row and let them know we're navigating..
if (this.iGridRowCount > 0)
{
if (iCurrRow < this.iGridRowCount)
{
// Restore our current position
this.dataGridView1.Rows[iCurrRow].Selected = true;
this.dataGridView1.CurrentCell = this.dataGridView1.Rows[iCurrRow].Cells[0];
}
else
{
// Select the first row as default
this.dataGridView1.Rows[0].Selected = true;
this.dataGridView1.CurrentCell = this.dataGridView1.Rows[0].Cells[0];
}
this.NavigateClickEvent(this.dataGridView1.CurrentRow);
}
}
catch (Exception ex)
{
FormErrorHandler eHandler = new FormErrorHandler(ex);
eHandler.ShowDialog();
}
}
/// <summary>
/// Authenticate access using Login Name (NO PASSWORD).
/// </summary>
/// <param name="sLogin"></param>
/// <returns></returns>
private bool AuthenticateNoPassword(string sLogin)
{
bool bAuthenticated = false;
string sResponse = string.Empty;
try
{
sResponse = TableHelper.GetScalar("tSysUser", "LoginID", "(LoginID = '" + sLogin + "') AND (IsCurrent = 'Y')");
if ((sResponse != string.Empty) & (sResponse == sLogin))
{
bAuthenticated = true;
}
}
catch (Exception ex)
{
FormErrorHandler frmError = new FormErrorHandler(ex);
frmError.Show();
}
return bAuthenticated;
}
/// <summary>
/// Add a new user.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnAdd_Click(object sender, System.EventArgs e)
{
string sLogin = this.tbName.Text.Trim();
// Check for empty user Login ID
if (sLogin == string.Empty)
{
MessageBox.Show("Please enter a valid non-empty Login ID.",
"Invalid Login ID",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
return;
}
// Check for existence of non-alphanumeric characters
if (!this.IsAlphaNumeric(sLogin))
{
MessageBox.Show("Login ID must contain alphanumeric characters only (no punctuation or spaces).",
"Invalid Login ID",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
return;
}
// Check for existence of this Login ID
int iCheck = TableHelper.Count("tSysUser", "LoginID = '" + sLogin + "'");
if (iCheck > 0)
{
MessageBox.Show("Login ID " + sLogin + " is already in use. Please try again.",
"Login ID Exists",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
return;
}
// Set default Login hash (combination of Login ID and Login ID in lower case..
string sHash = FormsAuthentication.HashPasswordForStoringInConfigFile(sLogin + sLogin.ToLower(),
PASSWORD_HASH_ALGORITHM);
string[] asCol = {"LoginID", "LoginHash"};
string[] asVal = {"'" + sLogin.Replace("'", "''") + "'", "'" + sHash + "'" };
bool bSuccess = false;
try
{
// Insert row
bSuccess = TableHelper.Insert("tSysUser", asCol, asVal);
if (bSuccess)
this.DialogResult = DialogResult.OK;
// Determine primary key of the new User row
string sPKuser = TableHelper.GetScalar("tSysUser", "PKUserID", "LoginHash = '" + sHash + "'");
// Determine lowest level role and assign to new user
int iMinAccess = Convert.ToInt32(TableHelper.Min("tSysRole", "RoleAccessLevel"));
string sPKrole = TableHelper.GetScalar("tSysRole", "PKRoleID", "RoleAccessLevel = " + iMinAccess.ToString());
string[] asColr = {"FKUserID", "FKRoleID"};
string[] asValr = {sPKuser, sPKrole};
TableHelper.Insert("tSysUserRoles", asColr, asValr);
}
catch (Exception ex)
{
FormErrorHandler eHandler = new FormErrorHandler(ex);
eHandler.ShowDialog();
}
// Close window
this.Close();
}
/// <summary>
/// Authenticate access using both Login Name and (hashed) Password.
/// </summary>
/// <param name="sLogin"></param>
/// <param name="sHash"></param>
/// <returns></returns>
private bool AuthenticatePassword(string sLogin, string sHash)
{
bool bAuthenticated = false;
string sDBHash = string.Empty;
try
{
sDBHash = TableHelper.GetScalar("tSysUser", "LoginHash", "(LoginID = '" + sLogin + "') AND (IsCurrent = 'Y')");
//debug
//MessageBox.Show(sHash, "Hash from Login", MessageBoxButtons.OK, MessageBoxIcon.Information);
//MessageBox.Show(sDBHash, "Hash from DB", MessageBoxButtons.OK, MessageBoxIcon.Information);
//debug
if ((sDBHash != string.Empty) & (sDBHash == sHash))
{
bAuthenticated = true;
}
}
catch (Exception ex)
{
FormErrorHandler frmError = new FormErrorHandler(ex);
frmError.Show();
}
return bAuthenticated;
}
