C# ContentControl.SetBinding方法代码示例

        public void SelectedItemBinding()
        {
            OverriddenAutoCompleteBox acb = new OverriddenAutoCompleteBox();
            acb.ItemsSource = "words go here".Split();
            ContentControl cc = new ContentControl();
            Binding b = new Binding("SelectedItem");
            b.Source = acb;
            cc.SetBinding(ContentControl.ContentProperty, b);

            int loadedCount = 0;
            acb.Loaded += (o, e) => loadedCount++;
            cc.Loaded += (o, e) => loadedCount++;

            EnqueueCallback(() => TestPanel.Children.Add(acb));
            EnqueueCallback(() => TestPanel.Children.Add(cc));
            EnqueueConditional(() => 2 == loadedCount);

            EnqueueCallback(() => acb.TextBox.Text = "w");
            EnqueueConditional(() => acb.IsDropDownOpen);

            EnqueueCallback(() => OverriddenSelectionAdapter.Current.SelectFirst());
            EnqueueCallback(() => Assert.AreEqual("words", acb.SelectedItem));

            EnqueueCallback(() => OverriddenSelectionAdapter.Current.TestCommit());
            EnqueueConditional(() => !acb.IsDropDownOpen);

            EnqueueCallback(() => Assert.AreEqual("words", cc.Content));

            EnqueueTestComplete();
        }

        public void SelectedItemBinding()
        {
            TreeView treeView = new TreeView();
            treeView.ItemsSource = "some test text".Split();
            ContentControl contentControl = new ContentControl();
            Binding binding = new Binding("SelectedItem");
            binding.Source = treeView;
            contentControl.SetBinding(ContentControl.ContentProperty, binding);

            StackPanel panel = new StackPanel();
            panel.Children.Add(treeView);
            panel.Children.Add(contentControl);

            TreeViewItem treeViewItem = null;

            TestAsync(
                panel,
                () => treeViewItem = ((TreeViewItem)(treeView.ItemContainerGenerator.ContainerFromIndex(1))),
                () => treeViewItem.IsSelected = true,
                () => Assert.AreEqual("test", treeView.SelectedItem),
                () => Assert.AreEqual("test", contentControl.Content));
        }

 internal ContentControl GetLabelElement()
 {
     LabelElement = new ContentControl();
     Binding templateBinding = new Binding();
     templateBinding.Source = this;
     templateBinding.Path = new PropertyPath("LabelTemplate");
     LabelElement.SetBinding(ContentControl.ContentTemplateProperty, templateBinding);
     Binding contentBinding = new Binding();
     contentBinding.Source = this;
     contentBinding.Path = new PropertyPath("Text");
     LabelElement.SetBinding(ContentControl.ContentProperty, contentBinding);
     return LabelElement;
 }

        private void Initialize()
        {
            double desiredWidth = 0;
            CalculateAutoInterval();
            GenerateLabels();
            if (this.ActualHeight > 0 && this.ActualWidth > 0)
            {

                this.Children.Clear();
                double yAxisHeightStep = this.ActualHeight / ((MIntervalCount > 0) ? MIntervalCount : 1);
                double yAxisHeightPosition = this.DataToPoint(MStartValue);
                Rect oldRect = new Rect(0, 0, 0, 0);
                AxisLine = new Line();
                Binding binding = new Binding();
                binding.Path = new PropertyPath("AxisLineStyle");
                binding.Source = this;
                AxisLine.SetBinding(Line.StyleProperty, binding);
                AxisLine.X1 = this.ActualWidth;
                AxisLine.X2 = this.ActualWidth;
                AxisLine.Y1 = 0;
                AxisLine.Y2 = this.ActualHeight;
                AxisLine.Measure(new Size(this.ActualHeight, this.ActualWidth));
                Labels = new List<ContentControl>();
                MajorTickLines = new List<Line>();
                MinorTickLines = new List<Line>();
                double labelSize = 0;
                for (int i = this.MLabels.Count - 1; i >= 0; i--)
                {
                    ContentControl label = new ContentControl();
                    label.Content = MLabels[i];
                    //label.ContentTemplate = this.LabelTemplate;
                    Binding labelTemplateBinding = new Binding();
                    labelTemplateBinding.Path = new PropertyPath("LabelTemplate");
                    labelTemplateBinding.Source = this;
                    label.SetBinding(ContentControl.ContentTemplateProperty, labelTemplateBinding);
                    label.Measure(new Size(this.ActualHeight, this.ActualWidth));
                    RotateTransform labelRotation = new RotateTransform();
                    labelRotation.Angle = LabelAngle;
                    Rect rotatedRect = GetRotatedRect(new Rect(0, 0, label.DesiredSize.Width, label.DesiredSize.Height), labelRotation);
                    label.RenderTransform = labelRotation;
                    Labels.Add(label);
                    Line tickLine = new Line();
                    double labelPadding = 0;
                    Binding styleBinding = new Binding();
                    styleBinding.Path = new PropertyPath("MajorLineStyle");
                    styleBinding.Source = this;
                    tickLine.SetBinding(Line.StyleProperty, styleBinding);
                    //tickLine.Style = MajorLineStyle;
                    tickLine.Measure(new Size(this.ActualHeight, this.ActualWidth));

                    tickLine.Y1 = yAxisHeightPosition;
                    tickLine.Y2 = yAxisHeightPosition;

                    switch (MajorTicksPosition)
                    {
                        case TickPosition.Inside:
                            tickLine.X1 = this.ActualWidth;
                            tickLine.X2 = tickLine.X1 + MajorLineSize;
                            if (this.ShowMajorTicks)
                            {
                                labelPadding = 0;
                                desiredWidth = 0;
                            }
                            break;
                        case TickPosition.Cross:
                            tickLine.X1 = this.ActualWidth -(MajorLineSize / 2);
                            tickLine.X2 = this.ActualWidth + (MajorLineSize / 2);
                            if (this.ShowMajorTicks)
                            {
                                labelPadding = tickLine.X2;
                                desiredWidth = this.MajorLineSize / 2;
                            }
                            break;
                        case TickPosition.Outside:
                            tickLine.X1 = this.ActualWidth;
                            tickLine.X2 = tickLine.X1 - MajorLineSize;
                            if (this.ShowMajorTicks)
                            {
                                labelPadding = tickLine.X2;
                                desiredWidth = this.MajorLineSize;
                            }
                            break;
                        default:
                            break;
                    }
                    Binding ticklineVisibilityBinding = new Binding();
                    ticklineVisibilityBinding.Path = new PropertyPath("ShowMajorTicks");
                    ticklineVisibilityBinding.Source = this;
                    ticklineVisibilityBinding.Converter = new BooleanToVisibilityConverter();
                    tickLine.SetBinding(Line.VisibilityProperty, ticklineVisibilityBinding);
                    MajorTickLines.Add(tickLine);
                    this.Children.Add(tickLine);
                    //desiredWidth = 0;
                    double minorstep = 0;
                    if (!(i == 0))
                    {
                        double minorWidth = yAxisHeightStep;
                        minorstep = minorWidth / (MinorTicksCount + 1);
                        for (int j = 0; j < this.MinorTicksCount; j++)
                        {
//.........这里部分代码省略.........

        /// <summary>
        /// Updates this instance.
        /// </summary>
        internal void Update()
        {
            double desiredWidth = 0;
            CalculateAutoInterval();
            GenerateLabels();
            if (this.ActualHeight > 0 && this.ActualWidth > 0)
            {
                double yAxisHeightStep = this.ActualHeight / ((MIntervalCount > 0) ? MIntervalCount : 1);
                double yAxisHeightPosition = 0;
                Rect oldRect = new Rect(0, 0, 0, 0);
                AxisLine.X1 = this.ActualWidth;
                AxisLine.X2 = this.ActualWidth;
                AxisLine.Y1 = 0;
                AxisLine.Y2 = this.ActualHeight;
                Binding binding = new Binding();
                binding.Path = new PropertyPath("AxisLineStyle");
                binding.Source = this;
                AxisLine.SetBinding(Line.StyleProperty, binding);
                double labelSize = 0;
                int minorCount = 0;
                if (this.MLabels.Count == Labels.Count)
                {
                    for (int i = this.MLabels.Count - 1; i >=0; i--)
                    {
                        yAxisHeightPosition = this.DataToPoint(MLabelValues[i]);
                        ContentControl label = Labels[i];
                        label.Content = MLabels[i];
                        label.Measure(new Size(this.ActualHeight, this.ActualWidth));
                        RotateTransform labelRotation = new RotateTransform();
                        labelRotation.Angle = LabelAngle;
                        Rect rotatedRect = GetRotatedRect(new Rect(0, 0, label.DesiredSize.Width, label.DesiredSize.Height), labelRotation);
                        label.RenderTransform = labelRotation;
                        Line tickLine = MajorTickLines[i];
                        double labelPadding = 0;
                        tickLine.Measure(new Size(this.ActualHeight, this.ActualWidth));
                        //tickLine.X1 = this.ActualWidth;
                        tickLine.Y1 = yAxisHeightPosition;
                        tickLine.Y2 = yAxisHeightPosition;
                        //tickLine.X2 = tickLine.X1 - MajorLineSize;
                        switch (MajorTicksPosition)
                        {
                            case TickPosition.Inside:
                                tickLine.X1 = this.ActualWidth;
                                tickLine.X2 = tickLine.X1 + MajorLineSize;
                                if (this.ShowMajorTicks)
                                {
                                    labelPadding = 0;
                                    desiredWidth = 0;
                                }
                                break;
                            case TickPosition.Cross:
                                tickLine.X1 = this.ActualWidth - (MajorLineSize / 2);
                                tickLine.X2 = this.ActualWidth + (MajorLineSize / 2);
                                if (this.ShowMajorTicks)
                                {
                                    labelPadding = tickLine.X2;
                                    desiredWidth = this.MajorLineSize / 2;
                                }
                                break;
                            case TickPosition.Outside:
                                tickLine.X1 = this.ActualWidth;
                                tickLine.X2 = tickLine.X1 - MajorLineSize;
                                if (this.ShowMajorTicks)
                                {
                                    labelPadding = tickLine.X2;
                                    desiredWidth = this.MajorLineSize;
                                }
                                break;
                            default:
                                break;
                        }
                        //desiredWidth = 0;
                        if (i != 0)
                        {
                            double minorWidth = yAxisHeightStep;
                            double minorstep = minorWidth / (MinorTicksCount + 1);
                            for (int j = 0; j < this.MinorTicksCount; j++)
                            {
                                Line minorLine = MinorTickLines[minorCount];
                                minorLine.Y1 = (yAxisHeightPosition + minorstep * (j + 1));
                                minorLine.Y2 = (yAxisHeightPosition + minorstep * (j + 1));
                                //minorLine.X1 = this.ActualWidth - (minorLine.StrokeThickness);
                               // minorLine.X2 = minorLine.X1 - MinorLineSize;
                                switch (MinorTicksPosition)
                                {
                                    case TickPosition.Inside:
                                        minorLine.X1 = this.ActualWidth;
                                        minorLine.X2 = minorLine.X1 + MinorLineSize;
                                        break;
                                    case TickPosition.Cross:
                                        minorLine.X1 = this.ActualWidth - (MinorLineSize / 2);
                                        minorLine.X2 = this.ActualWidth + (MinorLineSize / 2);
                                        break;
                                    case TickPosition.Outside:
                                        minorLine.X1 = this.ActualWidth;
                                        minorLine.X2 = minorLine.X1 - MinorLineSize;
                                        break;
//.........这里部分代码省略.........

//.........这里部分代码省略.........
                        }

                        //Canvas.SetLeft(label, xAxisWidthPosition - (label.DesiredSize.Width / 2));
                        //Canvas.SetTop(label, desiredHeight);
                        if (this.LabelAngle == 0)
                        {
                            Canvas.SetLeft(label, xAxisWidthPosition - (label.DesiredSize.Width / 2));
                            Canvas.SetTop(label, desiredHeight);
                            labelSize = Math.Max(labelSize, label.DesiredSize.Height);
                        }
                        else
                        {
                            Canvas.SetLeft(label, xAxisWidthPosition - (rotatedRect.Width / 2) - rotatedRect.X);
                            Canvas.SetTop(label, desiredHeight - rotatedRect.Y);
                            labelSize = Math.Max(labelSize, rotatedRect.Height);

                        }
                        k++;

                    }
                }
                else
                {
                    if (this.MLabels.Count > Labels.Count)
                    {
                        int offset = this.MLabels.Count - Labels.Count;
                        for (int j = 0; j < offset; j++)
                        {
                            ContentControl label = new ContentControl();
                            label.Content = MLabels[this.MLabels.Count - offset - 1];
                            Binding labelTemplateBinding = new Binding();
                            labelTemplateBinding.Path = new PropertyPath("LabelTemplate");
                            labelTemplateBinding.Source = this;
                            label.SetBinding(ContentControl.ContentTemplateProperty, labelTemplateBinding);
                            label.Measure(new Size(this.ActualHeight, this.ActualWidth));
                            RotateTransform labelRotation = new RotateTransform();
                            labelRotation.Angle = LabelAngle;
                            Rect rotatedRect = GetRotatedRect(new Rect(0, 0, label.DesiredSize.Width, label.DesiredSize.Height), labelRotation);
                           // label.RenderTransformOrigin = new Point(0.5, 0.5);
                            label.RenderTransform = labelRotation;
                            Labels.Add(label);
                            Line tickLine = new Line();
                            Binding styleBinding = new Binding();
                            styleBinding.Path = new PropertyPath("MajorLineStyle");
                            styleBinding.Source = this;
                            tickLine.SetBinding(Line.StyleProperty, styleBinding);
                            tickLine.Measure(new Size(this.ActualHeight, this.ActualWidth));
                            tickLine.X1 = xAxisWidthPosition - (tickLine.DesiredSize.Width / 2);
                            tickLine.X2 = xAxisWidthPosition - (tickLine.DesiredSize.Width / 2);

                            switch (this.MajorTicksPosition)
                            {
                                case TickPosition.Inside:
                                    tickLine.Y1 = 0;
                                    Binding tickSizeInsideBinding = new Binding();
                                    tickSizeInsideBinding.Path = new PropertyPath("MajorLineSize");
                                    tickSizeInsideBinding.Source = this;
                                    tickSizeInsideBinding.Converter = new NegativeConverter();
                                    tickLine.SetBinding(Line.Y2Property, tickSizeInsideBinding);
                                    if (this.ShowMajorTicks)
                                    {
                                        desiredHeight = 0;
                                    }
                                    break;
                                case TickPosition.Cross:
                                    Binding tickSizeNegativeCrossBinding = new Binding();

        /// <summary>
        /// Initializes this instance.
        /// </summary>
        internal void Initialize()
        {
            double desiredHeight = 0;
            double labelSize = 0;
            //if (m_MinValue == m_startValue + m_Interval)
            CalculateAutoInterval();
            GenerateLabels();
            if (this.ActualHeight > 0 && this.ActualWidth > 0)
            {

                this.Children.Clear();
                double xAxisWidthStep = this.ActualWidth / ((MIntervalCount > 0) ? MIntervalCount : 1);
                double xAxisWidthPosition = this.DataToPoint(MStartValue);
                double minorstep = 0;
                //m_offset = this.DataToPoint(m_MinValue + m_Interval);
                Rect oldRect = new Rect(0, 0, 0, 0);
                AxisLine = new Line();
                AxisLine.X1 = 0;
                AxisLine.X2 = this.ActualWidth;
                AxisLine.Y1 = 0;
                AxisLine.Y2 = 0;
                Binding binding = new Binding();
                binding.Path = new PropertyPath("AxisLineStyle");
                binding.Source = this;
                AxisLine.SetBinding(Line.StyleProperty, binding);
                Labels = new List<ContentControl>();
                MajorTickLines = new List<Line>();
                MinorTickLines = new List<Line>();
                for (int i = 0; i < this.MLabels.Count; i++)
                {
                    ContentControl label = new ContentControl();
                    label.Content = MLabels[i];
                    Binding labelTemplateBinding = new Binding();
                    labelTemplateBinding.Path = new PropertyPath("LabelTemplate");
                    labelTemplateBinding.Source = this;
                    label.SetBinding(ContentControl.ContentTemplateProperty, labelTemplateBinding);
                    label.Measure(new Size(this.ActualHeight, this.ActualWidth));
                    RotateTransform labelRotation = new RotateTransform();
                    labelRotation.Angle = LabelAngle;
                    Rect rotatedRect = GetRotatedRect(new Rect(0, 0, label.DesiredSize.Width, label.DesiredSize.Height), labelRotation);
                    //label.RenderTransformOrigin = new Point(0.5, 0.5);
                    label.RenderTransform = labelRotation;
                    Labels.Add(label);

                    Line tickLine = new Line();
                    double labelPadding = 0;
                    Binding styleBinding = new Binding();
                    styleBinding.Path = new PropertyPath("MajorLineStyle");
                    styleBinding.Source = this;
                    tickLine.SetBinding(Line.StyleProperty, styleBinding);
                    tickLine.Measure(new Size(this.ActualHeight, this.ActualWidth));
                    tickLine.X1 = xAxisWidthPosition - (tickLine.DesiredSize.Width / 2);
                    tickLine.X2 = xAxisWidthPosition - (tickLine.DesiredSize.Width / 2);

                    switch (this.MajorTicksPosition)
                    {
                        case TickPosition.Inside:
                            tickLine.Y1 = 0;
                            Binding tickSizeInsideBinding = new Binding();
                            tickSizeInsideBinding.Path = new PropertyPath("MajorLineSize");
                            tickSizeInsideBinding.Source = this;
                            tickSizeInsideBinding.Converter = new NegativeConverter();
                            tickLine.SetBinding(Line.Y2Property, tickSizeInsideBinding);
                            if (this.ShowMajorTicks)
                            {
                                labelPadding = 0;
                                desiredHeight = 0;
                            }
                            break;
                        case TickPosition.Cross:
                            Binding tickSizeNegativeCrossBinding = new Binding();
                            tickSizeNegativeCrossBinding.Path = new PropertyPath("MajorLineSize");
                            tickSizeNegativeCrossBinding.Source = this;
                            tickSizeNegativeCrossBinding.Converter = new NegativeHalfConverter();
                            tickLine.SetBinding(Line.Y1Property, tickSizeNegativeCrossBinding);

                            Binding tickSizeCrossBinding = new Binding();
                            tickSizeCrossBinding.Path = new PropertyPath("MajorLineSize");
                            tickSizeCrossBinding.Source = this;
                            tickSizeCrossBinding.Converter = new HalfValueConverter();
                            tickLine.SetBinding(Line.Y2Property, tickSizeCrossBinding);
                            if (this.ShowMajorTicks)
                            {
                                labelPadding = tickLine.Y2;
                                desiredHeight = MajorLineSize / 2;
                            }
                            break;
                        case TickPosition.Outside:
                            tickLine.Y1 = 0;
                            Binding tickSizeBinding = new Binding();
                            tickSizeBinding.Path = new PropertyPath("MajorLineSize");
                            tickSizeBinding.Source = this;
                            tickLine.SetBinding(Line.Y2Property, tickSizeBinding);
                            if (this.ShowMajorTicks)
                            {
                                labelPadding = tickLine.Y2;
                                desiredHeight = MajorLineSize;
//.........这里部分代码省略.........