BordersPage.cs source code in C# .NET

                        Code:
                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WebForms / System / Web / UI / Design / WebControls / ListControls / BordersPage.cs / 1 / BordersPage.cs
                        
                        
                                using System.Design; 
//------------------------------------------------------------------------------
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
//  
//-----------------------------------------------------------------------------
 
namespace System.Web.UI.Design.WebControls.ListControls { 

    using System; 
    using System.Design;
    using System.Collections;
    using System.Globalization;
    using System.ComponentModel; 
    using System.Drawing;
 
    using System.Diagnostics; 
    using System.Web.UI.Design.Util;
    using System.Web.UI.WebControls; 
    using System.Windows.Forms;

    using WebControls = System.Web.UI.WebControls;
    using DataGrid = System.Web.UI.WebControls.DataGrid; 

    using Button = System.Windows.Forms.Button; 
    using CheckBox = System.Windows.Forms.CheckBox; 
    using Label = System.Windows.Forms.Label;
 
    /// 
    /// 
    ///   The Borders page for the DataGrid and DataList controls
    ///  
    /// 
    [System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand, Flags=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)] 
    internal sealed class BordersPage : BaseDataListPage { 

        private const int IDX_GRID_HORIZONTAL = 0; 
        private const int IDX_GRID_VERTICAL = 1;
        private const int IDX_GRID_BOTH = 2;
        private const int IDX_GRID_NEITHER = 3;
 
        private NumberEdit cellPaddingEdit;
        private NumberEdit cellSpacingEdit; 
        private ComboBox gridLinesCombo; 
        private ColorComboBox borderColorCombo;
        private Button borderColorPickerButton; 
        private UnitControl borderWidthUnit;

        /// 
        protected override string HelpKeyword { 
            get {
                if (IsDataGridMode) { 
                    return "net.Asp.DataGridProperties.Borders"; 
                }
                else { 
                    return "net.Asp.DataListProperties.Borders";
                }
            }
        } 

        ///  
        ///  
        ///    Creates the UI of the page.
        ///  
        private void InitForm() {
            GroupLabel cellMarginGroup = new GroupLabel();
            Label cellPaddingLabel = new Label();
            this.cellPaddingEdit = new NumberEdit(); 
            Label cellSpacingLabel = new Label();
            this.cellSpacingEdit = new NumberEdit(); 
            GroupLabel borderLinesGroup = new GroupLabel(); 
            Label gridLinesLabel = new Label();
            this.gridLinesCombo = new ComboBox(); 
            Label colorLabel = new Label();
            this.borderColorCombo = new ColorComboBox();
            this.borderColorPickerButton = new Button();
            Label borderWidthLabel = new Label(); 
            this.borderWidthUnit = new UnitControl();
 
            cellMarginGroup.SetBounds(4, 4, 300, 16); 
            cellMarginGroup.Text = SR.GetString(SR.BDLBor_CellMarginsGroup);
            cellMarginGroup.TabStop = false; 
            cellMarginGroup.TabIndex = 0;

            cellPaddingLabel.Text = SR.GetString(SR.BDLBor_CellPadding);
            cellPaddingLabel.SetBounds(12, 24, 120, 14); 
            cellPaddingLabel.TabStop = false;
            cellPaddingLabel.TabIndex = 1; 
 
            cellPaddingEdit.SetBounds(12, 40, 70, 20);
            cellPaddingEdit.AllowDecimal = false; 
            cellPaddingEdit.AllowNegative = false;
            cellPaddingEdit.TabIndex = 2;
            cellPaddingEdit.TextChanged += new EventHandler(this.OnBordersChanged);
 
            cellSpacingLabel.Text = SR.GetString(SR.BDLBor_CellSpacing);
            cellSpacingLabel.SetBounds(160, 24, 120, 14); 
            cellSpacingLabel.TabStop = false; 
            cellSpacingLabel.TabIndex = 3;
 
            cellSpacingEdit.SetBounds(160, 40, 70, 20);
            cellSpacingEdit.AllowDecimal = false;
            cellSpacingEdit.AllowNegative = false;
            cellSpacingEdit.TabIndex = 4; 
            cellSpacingEdit.TextChanged += new EventHandler(this.OnBordersChanged);
 
            borderLinesGroup.SetBounds(4, 70, 300, 16); 
            borderLinesGroup.Text = SR.GetString(SR.BDLBor_BorderLinesGroup);
            borderLinesGroup.TabStop = false; 
            borderLinesGroup.TabIndex = 5;

            gridLinesLabel.Text = SR.GetString(SR.BDLBor_GridLines);
            gridLinesLabel.SetBounds(12, 90, 150, 14); 
            gridLinesLabel.TabStop = false;
            gridLinesLabel.TabIndex = 6; 
 
            gridLinesCombo.SetBounds(12, 106, 140, 21);
            gridLinesCombo.DropDownStyle = ComboBoxStyle.DropDownList; 
            gridLinesCombo.Items.Clear();
            gridLinesCombo.Items.AddRange(new object[] {
                                           SR.GetString(SR.BDLBor_GL_Horz),
                                           SR.GetString(SR.BDLBor_GL_Vert), 
                                           SR.GetString(SR.BDLBor_GL_Both),
                                           SR.GetString(SR.BDLBor_GL_None) 
                                       }); 
            gridLinesCombo.TabIndex = 7;
            gridLinesCombo.SelectedIndexChanged += new EventHandler(this.OnBordersChanged); 

            colorLabel.Text = SR.GetString(SR.BDLBor_BorderColor);
            colorLabel.SetBounds(12, 134, 150, 14);
            colorLabel.TabStop = false; 
            colorLabel.TabIndex = 8;
 
            borderColorCombo.SetBounds(12, 150, 140, 21); 
            borderColorCombo.TabIndex = 9;
            borderColorCombo.TextChanged += new EventHandler(this.OnBordersChanged); 
            borderColorCombo.SelectedIndexChanged += new EventHandler(this.OnBordersChanged);

            borderColorPickerButton.SetBounds(156, 149, 24, 22);
            borderColorPickerButton.Text = "..."; 
            borderColorPickerButton.TabIndex = 10;
            borderColorPickerButton.FlatStyle = FlatStyle.System; 
            borderColorPickerButton.Click += new EventHandler(this.OnClickColorPicker); 
            borderColorPickerButton.AccessibleName = SR.GetString(SR.BDLBor_ChooseColorButton);
            borderColorPickerButton.AccessibleDescription = SR.GetString(SR.BDLBor_ChooseColorDesc); 

            borderWidthLabel.Text = SR.GetString(SR.BDLBor_BorderWidth);
            borderWidthLabel.SetBounds(12, 178, 150, 14);
            borderWidthLabel.TabStop = false; 
            borderWidthLabel.TabIndex = 11;
 
            borderWidthUnit.SetBounds(12, 194, 102, 22); 
            borderWidthUnit.AllowNegativeValues = false;
            borderWidthUnit.AllowPercentValues = false; 
            borderWidthUnit.DefaultUnit = UnitControl.UNIT_PX;
            borderWidthUnit.TabIndex = 12;
            borderWidthUnit.Changed += new EventHandler(OnBordersChanged);
            borderWidthUnit.ValueAccessibleDescription = SR.GetString(SR.BDLBor_BorderWidthValueDesc); 
            borderWidthUnit.ValueAccessibleName = SR.GetString(SR.BDLBor_BorderWidthValueName);
            borderWidthUnit.UnitAccessibleDescription = SR.GetString(SR.BDLBor_BorderWidthUnitDesc); 
            borderWidthUnit.UnitAccessibleName = SR.GetString(SR.BDLBor_BorderWidthUnitName); 

            this.Text = SR.GetString(SR.BDLBor_Text); 
            this.AccessibleDescription = SR.GetString(SR.BDLBor_Desc);
            this.Size = new Size(308, 156);
            this.CommitOnDeactivate = true;
            this.Icon = new Icon(this.GetType(), "BordersPage.ico"); 

            this.Controls.Clear(); 
            this.Controls.AddRange(new Control[] { 
                                    borderWidthUnit,
                                    borderWidthLabel, 
                                    borderColorPickerButton,
                                    borderColorCombo,
                                    colorLabel,
                                    gridLinesCombo, 
                                    gridLinesLabel,
                                    borderLinesGroup, 
                                    cellSpacingEdit, 
                                    cellSpacingLabel,
                                    cellPaddingEdit, 
                                    cellPaddingLabel,
                                    cellMarginGroup
                                });
        } 

        ///  
        ///  
        ///   Initializes the page before it can be loaded with the component.
        ///  
        private void InitPage() {
            cellPaddingEdit.Clear();
            cellSpacingEdit.Clear();
            gridLinesCombo.SelectedIndex = -1; 
            borderColorCombo.Color = null;
            borderWidthUnit.Value = null; 
        } 

        ///  
        /// 
        ///   Loads the component into the page.
        /// 
        protected override void LoadComponent() { 
            InitPage();
 
            BaseDataList bdl = (BaseDataList)GetBaseControl(); 

            int cellPadding = bdl.CellPadding; 
            if (cellPadding != -1)
                cellPaddingEdit.Text = (cellPadding).ToString(NumberFormatInfo.CurrentInfo);
            int cellSpacing = bdl.CellSpacing;
            if (cellSpacing != -1) 
                cellSpacingEdit.Text = (cellSpacing).ToString(NumberFormatInfo.CurrentInfo);
 
            switch (bdl.GridLines) { 
                case GridLines.None:
                    gridLinesCombo.SelectedIndex = IDX_GRID_NEITHER; 
                    break;
                case GridLines.Horizontal:
                    gridLinesCombo.SelectedIndex = IDX_GRID_HORIZONTAL;
                    break; 
                case GridLines.Vertical:
                    gridLinesCombo.SelectedIndex = IDX_GRID_VERTICAL; 
                    break; 
                case GridLines.Both:
                    gridLinesCombo.SelectedIndex = IDX_GRID_BOTH; 
                    break;
            }

            borderColorCombo.Color = ColorTranslator.ToHtml(bdl.BorderColor); 
            borderWidthUnit.Value = bdl.BorderWidth.ToString(CultureInfo.CurrentCulture);
        } 
 
        /// 
        ///  
        ///   Handles changes in the border settings.
        /// 
        private void OnBordersChanged(object source, EventArgs e) {
            if (IsLoading()) 
                return;
 
            SetDirty(); 
        }
 
        /// 
        /// 
        ///   Invokes the color picker to pick the grid color.
        ///  
        private void OnClickColorPicker(object source, EventArgs e) {
            string color = borderColorCombo.Color; 
 
            color = ColorBuilder.BuildColor(GetBaseControl(), this, color);
            if (color != null) { 
                borderColorCombo.Color = color;
                OnBordersChanged(borderColorCombo, EventArgs.Empty);
            }
        } 

        ///  
        ///  
        ///   Saves the component loaded into the page.
        ///  
        protected override void SaveComponent() {
            BaseDataList bdl = (BaseDataList)GetBaseControl();

            try { 
                string cellPadding = cellPaddingEdit.Text.Trim();
                if (cellPadding.Length != 0) 
                    bdl.CellPadding = Int32.Parse(cellPadding, CultureInfo.CurrentCulture); 
                else
                    bdl.CellPadding = -1; 
            } catch {
                if (bdl.CellPadding != -1) {
                    cellPaddingEdit.Text = (bdl.CellPadding).ToString(NumberFormatInfo.CurrentInfo);
                } 
                else {
                    cellPaddingEdit.Clear(); 
                } 
            }
 
            try {
                string cellSpacing = cellSpacingEdit.Text.Trim();
                if (cellSpacing.Length != 0)
                    bdl.CellSpacing = Int32.Parse(cellSpacing, CultureInfo.CurrentCulture); 
                else
                    bdl.CellSpacing = -1; 
            } catch { 
                if (bdl.CellSpacing != -1) {
                    cellSpacingEdit.Text = (bdl.CellSpacing).ToString(NumberFormatInfo.CurrentInfo); 
                }
                else {
                    cellSpacingEdit.Clear();
                } 
            }
 
            switch (gridLinesCombo.SelectedIndex) { 
                case IDX_GRID_HORIZONTAL:
                    bdl.GridLines = GridLines.Horizontal; 
                    break;
                case IDX_GRID_VERTICAL:
                    bdl.GridLines = GridLines.Vertical;
                    break; 
                case IDX_GRID_BOTH:
                    bdl.GridLines = GridLines.Both; 
                    break; 
                case IDX_GRID_NEITHER:
                    bdl.GridLines = GridLines.None; 
                    break;
            }

            try { 
                string colorValue = borderColorCombo.Color;
                bdl.BorderColor = ColorTranslator.FromHtml(colorValue); 
            } catch { 
                borderColorCombo.Color = ColorTranslator.ToHtml(bdl.BorderColor);
            } 

            try {
                string borderWidth = borderWidthUnit.Value;
                Unit unitValue = Unit.Empty; 
                if (borderWidth != null)
                    unitValue = Unit.Parse(borderWidth, CultureInfo.CurrentCulture); 
                bdl.BorderWidth = unitValue; 
            } catch {
                borderWidthUnit.Value = bdl.BorderWidth.ToString(CultureInfo.CurrentCulture); 
            }

        }
 
        /// 
        ///  
        ///   Sets the component that is to be edited in the page. 
        /// 
        public override void SetComponent(IComponent component) { 
            base.SetComponent(component);
            InitForm();
        }
    } 
}
 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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BordersPage.cs source code in C# .NET

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