EditCommandColumn.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / WebControls / EditCommandColumn.cs / 1305376 / EditCommandColumn.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Web.UI.WebControls { 
 
    using System;
    using System.Collections; 
    using System.ComponentModel;
    using System.Web.UI;

    ///  
    /// Creates a special column with buttons for ,
    /// , and  commands to edit items 
    ///    within the selected row. 
    /// 
    public class EditCommandColumn : DataGridColumn { 


        /// 
        /// Initializes a new instance of an  class. 
        /// 
        public EditCommandColumn() { 
        } 

 

        /// 
        ///    Indicates the button type for the column.
        ///  
        [
        DefaultValue(ButtonColumnType.LinkButton) 
        ] 
        public virtual ButtonColumnType ButtonType {
            get { 
                object o = ViewState["ButtonType"];
                if (o != null)
                    return(ButtonColumnType)o;
                return ButtonColumnType.LinkButton; 
            }
            set { 
                if (value < ButtonColumnType.LinkButton || value > ButtonColumnType.PushButton) { 
                    throw new ArgumentOutOfRangeException("value");
                } 
                ViewState["ButtonType"] = value;
                OnColumnChanged();
            }
        } 

 
        ///  
        /// Indicates the text to display for the  command button
        ///    in the column. 
        /// 
        [
        Localizable(true),
        DefaultValue("") 
        ]
        public virtual string CancelText { 
            get { 
                object o = ViewState["CancelText"];
                if (o != null) 
                    return(string)o;
                return String.Empty;
            }
            set { 
                ViewState["CancelText"] = value;
                OnColumnChanged(); 
            } 
        }
 

        [
        DefaultValue(true),
        ] 
        public virtual bool CausesValidation {
            get { 
                object o = ViewState["CausesValidation"]; 
                if (o != null) {
                    return (bool)o; 
                }
                return true;
            }
            set { 
                ViewState["CausesValidation"] = value;
                OnColumnChanged(); 
            } 
        }
 

        /// 
        /// Indicates the text to display for the  command button in
        ///    the column. 
        /// 
        [ 
        Localizable(true), 
        DefaultValue("")
        ] 
        public virtual string EditText {
            get {
                object o = ViewState["EditText"];
                if (o != null) 
                    return(string)o;
                return String.Empty; 
            } 
            set {
                ViewState["EditText"] = value; 
                OnColumnChanged();
            }
        }
 

        ///  
        /// Indicates the text to display for the  command button 
        ///    in the column.
        ///  
        [
        Localizable(true),
        DefaultValue("")
        ] 
        public virtual string UpdateText {
            get { 
                object o = ViewState["UpdateText"]; 
                if (o != null)
                    return(string)o; 
                return String.Empty;
            }
            set {
                ViewState["UpdateText"] = value; 
                OnColumnChanged();
            } 
        } 

 
        [
        DefaultValue(""),
        ]
        public virtual string ValidationGroup { 
            get {
                object o = ViewState["ValidationGroup"]; 
                if (o != null) { 
                    return (string)o;
                } 
                return String.Empty;
            }
            set {
                ViewState["ValidationGroup"] = value; 
                OnColumnChanged();
            } 
        } 

        private void AddButtonToCell(TableCell cell,  string commandName, string buttonText, bool causesValidation, string validationGroup) { 
            WebControl buttonControl = null;
            ControlCollection controls = cell.Controls;
            ButtonColumnType buttonType = ButtonType;
 
            if (buttonType == ButtonColumnType.LinkButton) {
                LinkButton button = new DataGridLinkButton(); 
 
                buttonControl = button;
                button.CommandName = commandName; 
                button.Text = buttonText;
                button.CausesValidation = causesValidation;
                button.ValidationGroup = validationGroup;
            } 
            else {
                Button button = new Button(); 
 
                buttonControl = button;
                button.CommandName = commandName; 
                button.Text = buttonText;
                button.CausesValidation = causesValidation;
                button.ValidationGroup = validationGroup;
            } 

            controls.Add(buttonControl); 
        } 

 
        /// 
        ///    Initializes a cell within the column.
        /// 
        public override void InitializeCell(TableCell cell, int columnIndex, ListItemType itemType) { 
            base.InitializeCell(cell, columnIndex, itemType);
            bool causesValidation = CausesValidation; 
 
            if ((itemType != ListItemType.Header) &&
                (itemType != ListItemType.Footer)) { 
                if (itemType == ListItemType.EditItem) {
                    ControlCollection controls = cell.Controls;
                    AddButtonToCell(cell, DataGrid.UpdateCommandName, UpdateText, causesValidation, ValidationGroup);
 
                    LiteralControl spaceControl = new LiteralControl(" ");
                    controls.Add(spaceControl); 
 
                    AddButtonToCell(cell, DataGrid.CancelCommandName, CancelText, false, String.Empty);
                } 
                else {
                    AddButtonToCell(cell, DataGrid.EditCommandName, EditText, false, String.Empty);
                }
            } 
        }
    } 
} 


// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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EditCommandColumn.cs source code in C# .NET

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