C# ListControl.DataBind方法代碼示例

 // This function binds the given CheckBoxList with the given data table with respect to the data text field and the value field.
 public static void Bind2CheckBoxList(ListControl chk, DataTable dt, string textField, string valueField)
 {
     chk.DataSource = dt;
     chk.DataTextField = textField;
     chk.DataValueField = valueField;
     chk.DataBind();
 }

 public static void Bind2Ddl(ListControl ddl, DataTable dt, string textField, string valueField)
 {
     ddl.DataSource = dt;
     ddl.DataTextField = textField;
     ddl.DataValueField = valueField;
     ddl.DataBind();
 }

 public static void Fillchk(ListControl control, string key, string value, object data)
 {
     control.DataSource = data;
     control.DataValueField = key;
     control.DataTextField = value;
     control.DataBind();
 }

 public static void FillRange(ListControl control, int min = 1, int max = 10)
 {
     control.DataSource = GetRange(min, max);
     control.DataValueField = "key";
     control.DataTextField = "value";
     control.DataBind();
 }

 // This function binds the given RadioButtonList with the given data table with respect to the data text field and the value field.
 public static void Bind2RadioButtonList(ListControl rbl, DataTable dt, string textField, string valueField)
 {
     rbl.DataSource = dt;
     rbl.DataTextField = textField;
     rbl.DataValueField = valueField;
     rbl.DataBind();
 }

 public static void BindObject(ListControl ddl, DataTable data, string textColumn, string valueConlumn, string defaultText)
 {
     ddl.DataSource = data;
     ddl.DataTextField = textColumn;
     ddl.DataValueField = valueConlumn;
     ddl.DataBind();
     ddl.Items.Insert(0, new ListItem(defaultText, "-1"));
 }

        private static Dictionary<string, Dictionary<int, string>> _EnumList = new Dictionary<string, Dictionary<int, string>>(); //枚舉緩存池

        #endregion Fields

        #region Methods

        /// <summary>
        /// bind source for ListControl;ex:DropDown,ListBox;
        /// </summary>
        /// <param name="listControl"></param>
        /// <param name="enumType"></param>
        public static void BindListControl(ListControl listControl, Type enumType)
        {
            listControl.Items.Clear();
            listControl.DataSource = EnumToDictionary(enumType);
            listControl.DataValueField = "key";
            listControl.DataTextField = "value";
            listControl.DataBind();
        }

        public static void BindToEnum(Type enumType, ListControl lc, bool addEmpty)
        {
            Dictionary<string, string> ht = EnumToDictionary(enumType, addEmpty);

            lc.DataSource = ht.OrderBy(x => x.Key);
            lc.DataTextField = "Key";
            lc.DataValueField = "Value";
            lc.DataBind();
        }

        public static void FillCollection(ListControl control, string key, string value, object data, bool isAddSelect = true)
        {
            control.DataSource = data;
            control.DataValueField = key;
            control.DataTextField = value;
            control.DataBind();

            if (isAddSelect)
                control.Items.Insert(0, new ListItem("--- Select ---", "0"));
        }

 public static void FillList(ListControl ctrl, DataTable dataSource, string DataTextField, string DataValueField, bool UseOthersOption = true, string OthersLabel = "Select", string othersValue = "-1")
 {
     ctrl.Items.Clear();
     ctrl.DataTextField = DataTextField;
     ctrl.DataValueField = DataValueField;
     ctrl.DataSource = dataSource;
     ctrl.DataBind();
     if (UseOthersOption)
     {
         ctrl.Items.Insert(0, new ListItem(OthersLabel, "-1"));
     }
 }

 /// <summary>
 /// 列表類型控件數據綁定。
 /// </summary>
 /// <param name="control">列表類型控件(BulletedList,CheckBoxList,DropDownList,ListBox,RadioButtonList)。</param>
 /// <param name="listControlsDataSource">數據源接口。</param>
 public void ListControlsDataSourceBind(ListControl control, IListControlsData listControlsDataSource)
 {
     if (control != null && listControlsDataSource != null)
     {
         control.DataTextField = listControlsDataSource.DataTextField;
         if (!string.IsNullOrEmpty(listControlsDataSource.DataTextFormatString))
             control.DataTextFormatString = listControlsDataSource.DataTextFormatString;
         control.DataValueField = listControlsDataSource.DataValueField;
         control.DataSource = listControlsDataSource.DataSource;
         control.DataBind();
     }
 }

        public static void BindDictionaryToListControl(ListControl list, string categoryName)
        {
            list.DataSource = SystemDictionaryWrapper.GetDictionaryByCategoryName(categoryName);
            list.DataTextField = SystemDictionaryWrapper.PROPERTY_NAME_SYSTEMDICTIONARYVALUE;
            list.DataValueField = SystemDictionaryWrapper.PROPERTY_NAME_SYSTEMDICTIONARYKEY;
            list.DataBind();

            if (list.Items.Count > 0)
            {
                list.SelectedIndex = 0;
            }
        }

        public static void BindEnumToListControls(Type enumType, ListControl listcontrol)
        {
            string[] names = Enum.GetNames(enumType);

            listcontrol.DataSource = names.Select((key, value) =>

                                       new { key, value }).ToDictionary(x => x.key, x => x.value);

              listcontrol.DataTextField = "Key";

              listcontrol.DataValueField = "Value";

             listcontrol.DataBind();
        }

        public SingleSelectControl(SingleSelect question)
        {
            RepeatDirection direction = question.Vertical ? RepeatDirection.Vertical : RepeatDirection.Horizontal;

            switch (question.SelectionType)
            {
                case Items.SingleSelectType.DropDown:
                    lc = new DropDownList();
                    break;
                case Items.SingleSelectType.ListBox:
                    var lb = new ListBox();
                    lb.SelectionMode = ListSelectionMode.Single;
                    lc = lb;
                    break;
                case Items.SingleSelectType.RadioButtons:
                    var rbl = new RadioButtonList();
                    rbl.RepeatLayout = RepeatLayout.Flow;
                    rbl.RepeatDirection = direction;
                    lc = rbl;
                    break;
            }

            lc.CssClass = "alternatives";
            if (question.ID > 0)
                lc.ID = "q" + question.ID;
            lc.DataTextField = "Title";
            lc.DataValueField = "ID";
			lc.DataSource = question.Children.WhereAccessible();
            lc.DataBind();

            l = new Label();
            l.CssClass = "label";
            l.Text = question.Title;
            if (question.ID > 0)
                l.AssociatedControlID = lc.ID;

            Controls.Add(l);
            Controls.Add(lc);

            if (question.Required)
            {
                cv = new CustomValidator { Display = ValidatorDisplay.Dynamic, Text = "*" };
                cv.ErrorMessage = question.Title + " is required";
                cv.ServerValidate += (s, a) => a.IsValid = !string.IsNullOrEmpty(AnswerText);
                cv.ValidationGroup = "Form";
                Controls.Add(cv);
            }
        }

        public static void BindDropDownList(ListControl list, string schemaName, string tableName, string valueField, string displayField)
        {
            if(list == null)
            {
                return;
            }

            using(DataTable table = MixERP.Net.BusinessLayer.Helpers.FormHelper.GetTable(schemaName, tableName))
            {
                table.Columns.Add("text_field", typeof(string), displayField);

                list.DataSource = table;
                list.DataValueField = valueField;
                list.DataTextField = "text_field";
                list.DataBind();
            }
        }