// begin with the list of functions of forms
public void HandlerDispatcher(object sender, EventArgs e)
{
// used to create GUIElements
string GUIObjectName = ((dynamic)sender).Name;
// Get Handlers for the OnKeyUp Event
if (e is KeyEventArgs)
{
WriteFieldValueToDataSetRecord(sender, e);
return;
}
//System.Windows.Forms.MouseEventArgs e
MouseEventArgs me = e as MouseEventArgs;
if (e == null)
{
return;
}
// Get Handlers (functions) for this Event
string HandlersToBind = "(Event = 'all'";
// handle the Events
if (me.Button == MouseButtons.Left)
{
HandlersToBind = HandlersToBind + " OR Event = 'MouseClick'";
}
// Get Handlers (functions) for this Event
HandlersToBind = HandlersToBind + ")";
// Get Handlers (functions) for this Field
HandlersToBind = HandlersToBind + " AND GUIElementType + '_' + GUIElementId = '" + GUIObjectName + "'";
// Use the Select method to find all Handlers to bind
DataRow[] RowsToBind = GlobalVar.DataSet.Tables["GUIEventToHandler"].Select(HandlersToBind);
// Get GUIObject
dynamic GUIObject = null;
poolManager.GetObject(GUIObjectName, ref GUIObject);
// Invoke all assigned Mouse handlers
foreach (DataRow row in RowsToBind) // Loop over the rows.
{
// bind method
System.Reflection.MethodInfo method = this.GetType().GetMethod(row["Handler"].ToString(), new[]
{
typeof(object),
typeof(EventArgs)
});
method.Invoke(this, new object[] { sender, e });
// always call this function to write Log
TraceEvent(sender, e, row["Handler"].ToString());
}
}
public void WriteFieldToDataSetRecord(string GUIObjectName,string TextValue)
{
// scompose GUIObjectName (field_[fieldID] )
int FoundAt = GUIObjectName.IndexOf("_", 0)+1;
string FieldID = GUIObjectName.Substring(FoundAt, GUIObjectName.Length - FoundAt);
// Get GUIObject
dynamic GUIObject = null;
poolManager.GetObject(GUIObjectName, ref GUIObject);
// Find the Table & Column of Fields
DataRow[] fieldRows = GlobalVar.DataSet.Tables["field"].Select("id = " + FieldID);
// Get Table and Column to update
string Table = fieldRows[0]["table"].ToString();
string Column = fieldRows[0]["column"].ToString();
// Update DataSet
int PKsToRender = Int32.Parse(DataExplorer.GetPKsToRender(FieldID));
// Find the Table & Column of Fields
DataRow[] UpdateTableRows = GlobalVar.DataSet.Tables[Table].Select("id = " + PKsToRender);
// Update Rows
foreach(DataRow UpdateTableRow in UpdateTableRows)
{
UpdateTableRow[Column] = TextValue;
}
}
public void Render(string TableName)
{
if (TableName != "GUIEventToHandler")
{
return;
}
// used to create GUIElements
dynamic GUIObject = null;
foreach (string GUIObjectName in poolManager.objPool.Keys)
{
// Get GUIObject
poolManager.GetObject(GUIObjectName, ref GUIObject);
// Get run-time type of the GUIElement instance
Type currentType = GUIObject.GetType();
// prepare to list all Events for trigger
ArrayList AllEvents = new ArrayList(new string[] { "MouseClick", "KeyUp" }); // , "MouseHover"
// add all Events to every GUIElement
foreach (string Event in AllEvents) // Loop over all Events
{
// Get from GUIElement the Event you want to tring
EventInfo eventInfo = currentType.GetEvent(Event);
// if the GUIElement support the event
if (eventInfo != null)
{
// Get the Action (functions) from EventHandler object to Run when event is trigged
EventHandler EventHandlers = new EventHandler();
MethodInfo methodInfo = EventHandlers.GetType().GetMethod("HandlerDispatcher",
new[]
{
typeof(object),
typeof(EventArgs)
}
);
// Use Delegate to hook the Action (function) to the GUIElement
Type tDelegate = eventInfo.EventHandlerType;
Delegate del = Delegate.CreateDelegate(tDelegate, EventHandlers, methodInfo);
//Add the Delegate to GUIElement
eventInfo.AddEventHandler(GUIObject, del);
}
} // end AllEvents loop
} // end Object loop
} // end eventTrigger
private void UdpdateFieldsTextes(string TableName)
{
// Get all Fields with data of this table
string expression = "table = '" + TableName + "'";
// Use the Select method to find all Fields that use matching the filter.
DataRow[] foundRows = GlobalVar.DataSet.Tables["field"].Select(expression);
// Elaborate the Fields
foreach (DataRow FieldToUpdate in foundRows)
{
// Get ID of Form
string FieldID = FieldToUpdate["id"].ToString();
//Get GUIObject
dynamic GUIObject = null;
poolManager.GetObject("field_" + FieldID, ref GUIObject);
// Get the Column of the table that are rendered into the fields
string ColName = FieldToUpdate["column"].ToString();
// Render data onto the screen to each DataGridView
if (ColName == "")
{
GUIObject.DataSource = GlobalVar.DataSet.Tables[TableName];
continue;
}
// See whether it contains this string.
if (DataExplorer.GetPKsToRender(FieldID) == "0")
{
continue;
}
// Get all Records with PrimaryKey for this Field from Field_PrimaryKesyToRender
string DataToDisplay = "id IN (" + DataExplorer.GetPKsToRender(FieldID) + ")";
// Use the Select method to find all Fields that use matching the filter.
DataRow[] RowsToDisplay = GlobalVar.DataSet.Tables[TableName].Select(DataToDisplay);
// Update the Field.Text attribute with the correct UniquePrimaryKey UPK_ID
foreach (DataRow row in RowsToDisplay) // Loop over the rows.
{
GUIObject.Text = row[ColName].ToString();
//PropertyInfo cntrlProperty = GUIObject.GetType().GetProperty("Text");
//cntrlProperty.SetValue(GUIObject, row[ColName].ToString());
} // end loop
} //end loop
} // end function
private void BuildGuiElements(String TableName)
{
// used to create GUIElements
string GUIObjectName;
dynamic GUIObject = null;
// create all Forms, tabs and fields
foreach (DataRow row in GlobalVar.DataSet.Tables[TableName].Rows) // Loop over the rows.
{
// compose GUIObjectName (field_[fieldID] )
GUIObjectName = TableName + "_" + row["id"].ToString();
// get Object to manage
poolManager.GetObject(GUIObjectName, ref GUIObject);
// check if objct need to be created
if (null == GUIObject)
{
// create the object of correct class-type
switch (TableName)
{
case "form":
{
GUIObject = new Form1();
break;
}
case "tab":
{
GUIObject = new TabPage();
break;
}
case "field":
{
switch (row["type"].ToString())
{
case "Text":
{
GUIObject = new TextBox1();
break;
}
case "Button":
{
GUIObject = new Button1();
break;
}
case "Label":
{
GUIObject = new Label1();
break;
}
case "DataGridView":
{
GUIObject = new DataGridView1();
break;
}
default:
{
// column "type" has undefined Field Type
break;
}
}
break;
}
} // end switch
// Add the new generated object to pool
poolManager.AddObject(GUIObjectName, GUIObject);
//MessageBox.Show(poolManager.CurrentObjectsInPool.ToString());
} //endif
} // end loop
}