sybase datawindow .net
TRANSCRIPT
Sybase DataWindow .NET
John [email protected] EvangelistSybase, Inc.
Agenda
Overview of DataWindow .NET Windows Forms Demonstration Web Forms Demonstration Q&A Session
Introducing DataWindow .NET
One component for data access and reporting Greatly reduces the amount of code you need to
write in a .NET application Intuitive graphical user interface allows developers to
be productive immediately Patented technology backed up by award-winning
customer support Supports Microsoft® Windows forms, Web forms, and
Microsoft® Windows Mobile-based® Tablet PC applications
DataWindow .NET
Award NominationAward Nomination
What is DataWindow .NET?
DataWindow .NET consists of: A Component that plugs into your .NET development
environment A DataWindow Designer that allows you to graphically
create your data presentation layer A Database Administration Tool to access and graphically
display database information Database drivers to access your RDBMS of choice
What is DataWindow .NET?
At runtime DataWindow .NET consists of: Data entry interfaces Reports Engine that tracks user modifications and dynamically
generates INSERTs, UPDATEs and DELETEs
…all from one tool.
Database Support
Introducing DataWindow .NET
Presentation Styles
Presentation Styles
Report Styles
Freeform Style DataWindow
Tabular Style DataWindow
Grid Style DataWindow
Graph Style DataWindow
Label Style DataWindow
N-Up Style DataWindow
Group Report Style DataWindow
Nested Report Style DataWindow
Composite Report Style DataWindow
Cross Tab Style DataWindow
Introducing DataWindow .NET
Additional Features
Drop Down DataWindows
Think of them as enhanced Combo BoxesThink of them as enhanced Combo Boxes
DataWindow Validation Rules
Validation rule files
Over 1000 properties that can be accessed and manipulated at both design time and runtime
Approximately 200 methods to access and control data and the DataWindow
Lots of events for even greater control ItemChanged, ItemError, SQLPreview,
RowFocusChanged, etc.
DataWindow .NETMore Information
DataWindow .NETMore Information
Edit Masks and formatting Computed Fields for client-side processing Supports SQL, stored procedures and external data
sources Easy printing of DataWindows ( dwc.Print() ) Dynamic creation of DataWindows at runtime And much more!
Reduce CodeExample: Setting the Autosize Height on a Row
public void AutoSizeGrid() { // DataGrid should be bound to a DataTable for this part to // work. int numRows = ((DataTable)gridTasks.DataSource).Rows.Count; Graphics g = Graphics.FromHwnd(gridTasks.Handle); StringFormat sf = new StringFormat(StringFormat.GenericTypographic); SizeF size;
// Since DataGridRows[] is not exposed directly by the DataGrid // we use reflection to hack internally to it.. There is actually // a method get_DataGridRows that returns the collection of rows // that is what we are doing here, and casting it to a System.Array MethodInfo mi = gridTasks.GetType().GetMethod("get_DataGridRows", BindingFlags.FlattenHierarchy | BindingFlags.IgnoreCase | BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static);
System.Array dgra = (System.Array)mi.Invoke(gridTasks,null);
// Convert this to an ArrayList, little bit easier to deal with // that way, plus we can strip out the newrow row. ArrayList DataGridRows = new ArrayList(); foreach (object dgrr in dgra) { if (dgrr.ToString().EndsWith("DataGridRelationshipRow")==true) DataGridRows.Add(dgrr); }
// Now loop through all the rows in the grid for (int i = 0; i < numRows; ++i) { // Here we are telling it that the column width is set to // 400.. so size will contain the Height it needs to be. size = g.MeasureString(gridTasks[i,1].ToString(),gridTasks.Font,400,sf); int h = Convert.ToInt32(size.Height); // Little extra cellpadding space h = h + 8;
// Now we pick that row out of the DataGridRows[] Array // that we have and set its Height property to what we // think it should be. PropertyInfo pi = DataGridRows[i].GetType().GetProperty("Height"); pi.SetValue(DataGridRows[i],h,null);
// I have read here that after you set the Height in this manner that you should // Call the DataGrid Invalidate() method, but I haven't seen any prob with not calling it..
}
g.Dispose(); }
DataGridDataGrid
DataWindoDataWindoww
Reduce CodeExample: Setting a Column Style to Checkbox
// code assumes you have a DataSet named myDataSet, a table named "EastCoastSales" and a DataGrid myDataGrid //STEP 1: Create a DataTable style object and set properties if required. DataGridTableStyle ts1 = new DataGridTableStyle();
//specify the table from dataset (required step) ts1.MappingName = "EastCoastSales"; // Set other properties (optional step) ts1.AlternatingBackColor = Color.LightBlue;
//STEP 2: Create a string column and add it to the tablestyle DataGridColumnStyle TextCol = new DataGridTextBoxColumn(); TextCol.MappingName = "custName"; //from dataset table TextCol.HeaderText = "Customer Name"; TextCol.Width = 250; ts1.GridColumnStyles.Add(TextCol);
//STEP 3: Create an int column style and add it to the tablestyle //this requires setting the format for the column through its property descriptor PropertyDescriptorCollection pdc = this.BindingContext [myDataSet, "EastCoastSales"].GetItemProperties();
//now created a formated column using the pdc DataGridDigitsTextBoxColumn csIDInt = new DataGridDigitsTextBoxColumn(pdc["CustID"], "i", true); csIDInt.MappingName = "CustID"; csIDInt.HeaderText = "CustID"; csIDInt.Width = 100; ts1.GridColumnStyles.Add(csIDInt);
//STEP 4: Add the checkbox DataGridColumnStyle boolCol = new DataGridBoolColumn(); boolCol.MappingName = "Current"; boolCol.HeaderText = "Info Current";
//uncomment this line to get a two-state checkbox //((DataGridBoolColumn)boolCol).AllowNull = false;
boolCol.Width = 150; ts1.GridColumnStyles.Add(boolCol);
//STEP 5: Add the tablestyle to your datagrid's tablestlye collection myDataGrid.TableStyles.Add(ts1);
DataGridDataGrid
DataWindowDataWindow
Reduce CodeExample: Adding a Combo Box
// Step 1. Derive a custom column style from DataGridTextBoxColumn // a) add a ComboBox member // b) track when the combobox has focus in Enter and Leave events // c) override Edit to allow the ComboBox to replace the TextBox // d) override Commit to save the changed data
// Step 2 - Use the combo column style // Add 1 col with combo style DataGridComboBoxColumn ComboTextCol = new DataGridComboBoxColumn(); ComboTextCol.MappingName = "custCity"; ComboTextCol.HeaderText = "Customer Address"; ComboTextCol.Width = 100; ts1.GridColumnStyles.Add(ComboTextCol);
// Step 3 - Additional setup for Combo style // a) make the row height a little larger to handle minimum combo height ts1.PreferredRowHeight = ComboTextCol.ColumnComboBox.Height + 3; // b) Populate the combobox somehow. It is a normal combobox, so whatever... ComboTextCol.ColumnComboBox.Items.Clear(); ComboTextCol.ColumnComboBox.Items.Add("Chicago"); ComboTextCol.ColumnComboBox.Items.Add("Corvallis"); ComboTextCol.ColumnComboBox.Items.Add("Denver"); ComboTextCol.ColumnComboBox.Items.Add("Great Falls"); ComboTextCol.ColumnComboBox.Items.Add("Kansas City"); ComboTextCol.ColumnComboBox.Items.Add("Los Angeles"); ComboTextCol.ColumnComboBox.Items.Add("Raleigh"); ComboTextCol.ColumnComboBox.Items.Add("Washington");
// c) set the dropdown style of the combo... ComboTextCol.ColumnComboBox.DropDownStyle = ComboBoxStyle.DropDownList;
DataGridDataGrid DataWindowDataWindow
Note: For data from a database even more code would be required!Note: For data from a database even more code would be required!
Demonstration OneWindows Forms
Demonstration TwoWeb Forms
What’s Possibledw-eXtreme.com
What’s Possibledw-eXtreme.com
What’s Possibledw-eXtreme.com
What’s Possibledw-eXtreme.com
What’s Possibledw-eXtreme.com
What’s Possibledw-eXtreme.com
What’s Possibledw-eXtreme.com
What’s Possibledw-eXtreme.com
What’s Possibledw-eXtreme.com
What’s Possibledw-eXtreme.com
Demonstration Fourdw-eXtreme.com “Planner”
Session Summary
Provided an overview of DataWindow .NET features
Demonstrated how DataWindow .NET can be used in .NET Windows Forms applications
Demonstrated how DataWindow .NET can be used in ASP.NET applications
Roadmap for DataWindow .NET
DataWindow .NET 1.5 WebForms and ASP .NET Direct access to DataWindow object properties using the
DataWindow .NET object model Ink Edit and Ink Picture Controls General availability April 8, 2005
DataWindow .NET 2.0 Support for .NET Datasets and DataTables Additional ADO .NET support Integrate DataWindow Designer into the Microsoft® Visual Studio® IDE Support for Microsoft® .NET Framework 2.0 and ASP .NET 2.0 Release planned for late 2005
DataWindow .NETResources
Newsgroup: Forums.sybase.com – sybase.public.datawindow.net http://www.sybase.com/support/newsgroups
Blogs: http://www.teamsybase.net/blogs
Code Examples: http://datawindownet.codexchange.sybase.com
Product Information and Evaluation Copy: http://www.sybase.com/datawindow.net
Replay of MSDN live webcast: http://www.microsoft.com/events/webcasts/library/200503.mspx
DataWindow .NET 1.5 Evaluation Download http://response.sybase.com/forms/dwnet15eval