private void GridEX1_CurrentLayoutChanged(object sender, EventArgs e)
{
//clear the DataTable used by the previous layout
jsNorthWindDataSet1.Clear();
//When layouts are persisted into a file,
//the DataSource and DataMember properties are
//not persisted so you must reset them at run time
//instead of resseting the DataSource and DataMember
//properties when the layout is made, this could be done
//in all the layouts at once in the LayoutLoad event
if (GridEX1.CurrentLayout != null)
{
switch (GridEX1.CurrentLayout.Key)
{
case "Customers":
customersTableAdapter1.Fill(jsNorthWindDataSet1.Customers);
GridEX1.SetDataBinding(jsNorthWindDataSet1, "Customers");
break;
case "Products":
productsTableAdapter1.Fill(jsNorthWindDataSet1.Products);
GridEX1.SetDataBinding(jsNorthWindDataSet1, "Products");
break;
case "Suppliers":
suppliersTableAdapter1.Fill(jsNorthWindDataSet1.Suppliers);
GridEX1.SetDataBinding(jsNorthWindDataSet1, "Suppliers");
break;
}
}
}
protected override void OnClosing(CancelEventArgs e)
{
base.OnClosing(e);
DialogResult result;
string layoutDir;
FileStream layoutStream;
result = MessageBox.Show("Do you want to preserve the changes in " +
"the GridEX control layout?", "Preserve changes",
MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question);
if (result == System.Windows.Forms.DialogResult.Cancel)
{
e.Cancel = true;
}
else if (result == System.Windows.Forms.DialogResult.Yes)
{
DirectoryInfo dInfo;
dInfo = new DirectoryInfo(Application.ExecutablePath).Parent;
dInfo = new DirectoryInfo(dInfo.FullName + @"\LayoutData");
if (!dInfo.Exists)
{
dInfo.Create();
}
layoutDir = dInfo.FullName + @"\GridEXLayout.gxl";
layoutStream = new FileStream(layoutDir, FileMode.Create);
GridEX1.SaveLayoutFile(layoutStream);
layoutStream.Close();
}
}
private void btnDelete_Click(object sender, EventArgs e)
{
GridEXRow[] checkedRows;
//get an array with all the rows that the user checked.
checkedRows = GridEX1.GetCheckedRows();
//if the user didn't check any row, you will get an empty array
if (checkedRows.Length == 0)
{
MessageBox.Show("Select at least 1 message to be deleted.");
}
else
{
string message;
message = String.Format("You are about to delete {0} message(s)." +
"\n\rDo you want to continue?", checkedRows.Length);
if (MessageBox.Show(message, "Janus Tutorial", MessageBoxButtons.YesNo) ==
System.Windows.Forms.DialogResult.Yes)
{
foreach (GridEXRow row in checkedRows)
{
((DataRowView)row.DataRow).Delete();
}
}
}
}
private void LoadLayout()
{
string layoutDir = GetLayoutDirectory() + @"\GridEXLayout.gxl";
if (FileExists(layoutDir))
{
FileStream layoutStream;
layoutStream = new FileStream(layoutDir, FileMode.Open);
GridEX1.LoadLayoutFile(layoutStream);
layoutStream.Close();
}
}
private void Button1_Click(object sender, EventArgs e)
{
//Creating the collection
people = new PersonCollection();
people.Add(new Person("Mr.", "John", "Smith", "Sr."));
people.Add(new Person("Mrs.", "Mary", "Jones", ""));
people.Add(new Person("Miss", "Sally", "Porter", ""));
people.Add(new Person("Mr.", "Joseph", "Gold", "Jr."));
people.Add(new Person("Dr.", "Ian", "Goldsmith", ""));
//Binding GridEX to the people collection
GridEX1.SetDataBinding(people, "");
//Forcing GridEX control to generate the columns needed
//to display all the properties in the Person class.
GridEX1.RetrieveStructure();
}
private void CreateDataSourceAndBindGrid()
{
gridDataSource = new DataSet();
DataTable dataTable = new DataTable("Tasks");
DataColumn column = dataTable.Columns.Add("Id", typeof(int));
column.AutoIncrement = true;
dataTable.Columns.Add("Subject", typeof(string));
dataTable.Columns.Add("Complete", typeof(bool));
dataTable.Columns.Add("DueDate", typeof(DateTime));
//add datatable to dataset
gridDataSource.Tables.Add(dataTable);
//adding some sample rows
dataTable.Rows.Add(1, "Task 1", false, DateTime.Today.AddDays(2));
dataTable.Rows.Add(2, "Task 2", true, DateTime.Today);
//bind grid to the datasource
GridEX1.SetDataBinding(gridDataSource, "Tasks");
}
private void BindGridEXControl()
{
DataSet ds = new DataSet();
DataTable table = new DataTable("Messages");
table.Columns.Add(new DataColumn("From", typeof(string)));
table.Columns.Add(new DataColumn("Subject", typeof(string)));
table.Columns.Add(new DataColumn("Date", typeof(DateTime)));
ds.Tables.Add(table);
table.Rows.Add("*****@*****.**", "Greetings", new DateTime(2002, 2, 5));
table.Rows.Add("*****@*****.**", "Invitation", new DateTime(2002, 2, 7));
table.Rows.Add("*****@*****.**", "A question", new DateTime(2002, 2, 10));
table.Rows.Add("*****@*****.**", "How are you?", new DateTime(2002, 2, 12));
table.Rows.Add("*****@*****.**", "Greetings", new DateTime(2002, 2, 14));
table.Rows.Add("*****@*****.**", "Hi", new DateTime(2002, 2, 18));
table.Rows.Add("*****@*****.**", "No Subject", new DateTime(2002, 2, 20));
GridEX1.SetDataBinding(ds, "Messages");
}
