Aha, so I am not wrong when I say that actually, VS.net is pretty useless for the blind?
Again, if we don't consider Intelisense, of course. Octavian----- Original Message ----- From: "Jamal Mazrui" <empower@xxxxxxxxx>
To: <programmingblind@xxxxxxxxxxxxx> Sent: Friday, October 10, 2008 11:26 PM Subject: Example of nested layout panels and dynamic form creation with .NET
/* Example of nested layout panels and dynamic form creation Public domain by Jamal Mazrui October 10, 2008 Here is an example of using nested layout panels of the .NET Framework. Note that no pixel coordinates are used for positioning and sizing controls. The form, TableLayoutPanel, FlowLayoutPanels, and Buttons are all laid out automatically according to defaults and need. I wrote and compiled this C# code with EdSharp and the command-line compiler. Although Visual Studio certainly has its benefits, I think significantly more time, effort, and code would probably be involved to do the same thing with the form designer, code generator, and multiple files of a Visual Studio project. Below is the source code of LayoutPanels.cs, which is also included with the compiled version, LayoutPanels.exe in the archive available at http://EmpowermentZone.com/LayoutPanels.zip When the executable is run, it calls a function called MultiInput that I have found useful in various contexts. It presents a dialog with a number of edit boxes determined at runtime. Parameters to the function provide the dialog title as a string, and the labels and default values of each field in arrays. The function returns an array with values as edited by the user, or an empty array if the dialog is canceled. The program shows those return values in a message box. */ using System; using System.Collections.Generic; using System.Windows.Forms; class Program { static void Main() { string sTitle = "Example of Layout Panels"; string[] aLabels = {"Label1", "Label2", "Label3"}; string[] aValues = {"Value1", "Value2", "Value3"}; string[] aResults = MultiInput(sTitle, aLabels, aValues); if (aResults.Length == 0) return; MessageBox.Show(String.Join("\n", aResults), "Results"); Console.Write(String.Join("\n", aResults)); } // Main method public static string[] MultiInput(string sTitle, string[] aLabels, string[] aValues) { /* Define a dialog form containing a vertical FlowLayoutPanel, which in turn, contains a TableLayoutPanel and a horizontal FlowLayoutPanel below it After initializing each control, suspend automatic layout until all its properties, and those of its child controls, have been set The OK button captures the values entered or modified, which the function returns in an array */ // Define the dialog form Form frm = new Form(); frm.SuspendLayout(); frm.AutoSize = true; frm.AutoSizeMode = AutoSizeMode.GrowAndShrink; frm.AutoScroll = true; // Define the main , vertical FlowLayoutPanel FlowLayoutPanel flpMain = new FlowLayoutPanel(); flpMain.SuspendLayout(); flpMain.AutoSize = true; flpMain.AutoSizeMode = AutoSizeMode.GrowAndShrink; flpMain.FlowDirection = FlowDirection.TopDown; /* Define a TableLayoutPanel with two colums, the left containing field labels and the right containing field values The number of rows is the number of items in the array of field labels passed to the function. There will be one row for each field. determined by the size*/ TableLayoutPanel tlpFields = new TableLayoutPanel(); tlpFields.SuspendLayout(); tlpFields.Anchor = AnchorStyles.None; tlpFields.AutoSize = true; tlpFields.AutoSizeMode = AutoSizeMode.GrowAndShrink; tlpFields.ColumnCount = 2; // Add a column style for each column for (int i = 0; i < tlpFields.ColumnCount; i++) { tlpFields.ColumnStyles.Add(new ColumnStyle(SizeType.AutoSize)); } // Add a row and row style for each field tlpFields.RowCount = aLabels.Length; for (int i = 0; i < tlpFields.RowCount; i++) { Label lbl = new Label(); lbl.AutoSize = true; lbl.Text = aLabels[i] + ":"; TextBox txt = new TextBox(); txt.Text = aValues[i]; tlpFields.Controls.AddRange(new Control[] {lbl, txt}); tlpFields.RowStyles.Add(new RowStyle(SizeType.AutoSize)); } tlpFields.ResumeLayout(); // Below the TableLayoutPanel of fields, add a horizontal FlowLayoutPanel containing buttons FlowLayoutPanel flpButtons = new FlowLayoutPanel(); flpButtons.SuspendLayout(); flpButtons.Anchor = AnchorStyles.None; flpButtons.AutoSize = true; flpButtons.AutoSizeMode = AutoSizeMode.GrowAndShrink; flpButtons.FlowDirection = FlowDirection.LeftToRight; // Define the OK button Button btnOK = new Button(); btnOK.Text = "OK"; // Define its event handler List<string> listResults = new List<string>(); btnOK.Click += delegate(object o, EventArgs e) { foreach (Control ctl in tlpFields.Controls) { if (ctl.GetType() == typeof(TextBox)) listResults.Add(ctl.Text); } frm.Close(); }; // Define the Cancel button Button btnCancel = new Button(); btnCancel.Text = "Cancel"; btnCancel.Click += delegate(object o, EventArgs e) {frm.Close();}; flpButtons.Controls.AddRange(new Control[] {btnOK, btnCancel}); flpButtons.ResumeLayout(); flpMain.Controls.AddRange(new Control[] {tlpFields, flpButtons}); flpMain.ResumeLayout(); // Set remaining properties of the form frm.AcceptButton = btnOK; frm.CancelButton = btnCancel; frm.StartPosition = FormStartPosition.CenterParent; frm.Text = sTitle; frm.Controls.Add(flpMain); frm.ResumeLayout(); frm.ShowDialog(); frm.Dispose(); return listResults.ToArray(); } // MultiInput method } // Program class __________ View the list's information and change your settings at //www.freelists.org/list/programmingblind
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