From 9ad575599068e7e4682aa1f8e5fe49a75a2637de Mon Sep 17 00:00:00 2001 From: tineshsf4652 Date: Sun, 15 Dec 2024 23:10:54 +0530 Subject: [PATCH 1/9] Update README.md --- README.md | 143 +++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 141 insertions(+), 2 deletions(-) diff --git a/README.md b/README.md index 615c3db..bdc2aa0 100644 --- a/README.md +++ b/README.md @@ -1,2 +1,141 @@ -# How-to-create-and-dynamically-update-target-line-for-WPF-Chart -earn how to add and dynamically update a target line in WPF SfChart using Annotation. Customize its appearance and functionality effortlessly. +# How to create and dynamically update target line for WPF Chart +This article provides a detailed walkthrough on how to create and dynamically update target line in [WPF Chart](https://www.syncfusion.com/wpf-controls/charts). + +The [SfChart](https://help.syncfusion.com/cr/wpf/Syncfusion.UI.Xaml.Charts.SfChart.html) includes support for [Annotations](https://help.syncfusion.com/cr/wpf/Syncfusion.UI.Xaml.Charts.SfChart.html#Syncfusion_UI_Xaml_Charts_SfChart_Annotations), enabling the addition of various types of annotations to enhance chart visualization. Using [HorizontalLineAnnotation](https://help.syncfusion.com/cr/wpf/Syncfusion.UI.Xaml.Charts.HorizontalLineAnnotation.html), you can create and dynamically adjust the target line. + +The Horizontal Line Annotation includes following property: +* [Y1](https://help.syncfusion.com/cr/wpf/Syncfusion.UI.Xaml.Charts.Annotation.html#Syncfusion_UI_Xaml_Charts_Annotation_Y1) - Represents the Y1 Coordinate of the horizontal line Annotation. +* [Stroke](https://help.syncfusion.com/cr/wpf/Syncfusion.UI.Xaml.Charts.ShapeAnnotation.html#Syncfusion_UI_Xaml_Charts_ShapeAnnotation_Stroke) - Represents the brush for the horizontal line annotation outline. +* [StrokeThickness](https://help.syncfusion.com/cr/wpf/Syncfusion.UI.Xaml.Charts.ShapeAnnotation.html#Syncfusion_UI_Xaml_Charts_ShapeAnnotation_StrokeThickness) - Represents the thickness of the horizontal line annotation outline. +* [StrokeDashArray](https://help.syncfusion.com/cr/wpf/Syncfusion.UI.Xaml.Charts.ShapeAnnotation.html#Syncfusion_UI_Xaml_Charts_ShapeAnnotation_StrokeDashArray) - Represents the DashArray of the horizontal line annotation stroke. +* [Text](https://help.syncfusion.com/cr/wpf/Syncfusion.UI.Xaml.Charts.Annotation.html#Syncfusion_UI_Xaml_Charts_Annotation_Text) - Gets or sets the description text for horizontal line Annotation. + +Learn step-by-step instructions and gain insights to create and dynamically update the target line. + +**Step 1:** The layout is created using a Grid with two columns. + +**XAML** + + ```xml + + + + + + + + + ``` + +**Step 2:** In first column of grid layout, initialize the [SfChart](https://help.syncfusion.com/wpf/charts/getting-started) and add the axes and series to the [SfChart](https://help.syncfusion.com/wpf/charts/getting-started) as shown below. + +**XAML** + + ```xml + + + + + + + + + + + + + + + ..... + + + + + + + ``` + +**Step 3:** The [HorizontalLineAnnotation](https://help.syncfusion.com/wpf/charts/annotations#vertical-and-horizontal-line-annotation) is initialized within the [Annotations](https://help.syncfusion.com/wpf/charts/annotations) collection of the [SfChart](https://help.syncfusion.com/wpf/charts/getting-started) to mark a dynamic target value on the Y-axis. The Y1 value is data-bound, enabling the target line to update dynamically based on the ViewModel. + +**XAML** + + ```xml + + + + + + + + + ``` + +**C#** + + ```csharp +internal class ViewModel : INotifyPropertyChanged +{ + private double y1; + public double Y1 + { + get => y1; + set + { + if(y1 != value) + { + y1 = value; + OnPropertyChanged(nameof(Y1)); + } + } + } + + public event PropertyChangedEventHandler? PropertyChanged; + + protected void OnPropertyChanged(string name) + { + PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(name)); + } + + ..... + + public ViewModel() + { + Y1 = 12000; + ..... + } +} + ``` + +**Step 4:** The second column of the grid layout contains a StackPanel with a Slider, TextBox and TextBlock, allowing the user to change the annotation value dynamically. + +**XAML** + + ```xml + + + + + + + + ``` + + +**Output:** + +![DynamicTargetLine1](https://github.com/user-attachments/assets/aa0e643e-f62e-4d95-a596-7cd981484d47) + From 52cea8d636c4dba4534d2bd3593d033639f8b038 Mon Sep 17 00:00:00 2001 From: tineshsf4652 Date: Mon, 6 Jan 2025 15:42:29 +0530 Subject: [PATCH 2/9] Update README.md --- README.md | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/README.md b/README.md index bdc2aa0..82e74ef 100644 --- a/README.md +++ b/README.md @@ -139,3 +139,10 @@ internal class ViewModel : INotifyPropertyChanged ![DynamicTargetLine1](https://github.com/user-attachments/assets/aa0e643e-f62e-4d95-a596-7cd981484d47) +**Troubleshooting** + +Path too long exception + +If you are facing a path too long exception when building this example project, close Visual Studio and rename the repository to a shorter name before building the project. + +For more details, refer to the KB on [how to create and dynamically update target line for WPF Chart?](https://support.syncfusion.com/agent/kb/18542). From 2226d34c57d4c65499f3f705800dbcc444dd19b0 Mon Sep 17 00:00:00 2001 From: tineshsf4652 Date: Mon, 13 Jan 2025 10:55:49 +0530 Subject: [PATCH 3/9] Update README.md --- README.md | 114 +++++++++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 108 insertions(+), 6 deletions(-) diff --git a/README.md b/README.md index 82e74ef..e33adae 100644 --- a/README.md +++ b/README.md @@ -12,7 +12,7 @@ The Horizontal Line Annotation includes following property: Learn step-by-step instructions and gain insights to create and dynamically update the target line. -**Step 1:** The layout is created using a Grid with two columns. +**Step 1:** The layout is created using a grid with two columns. **XAML** @@ -27,7 +27,7 @@ Learn step-by-step instructions and gain insights to create and dynamically upda ``` -**Step 2:** In first column of grid layout, initialize the [SfChart](https://help.syncfusion.com/wpf/charts/getting-started) and add the axes and series to the [SfChart](https://help.syncfusion.com/wpf/charts/getting-started) as shown below. +**Step 2:** In first column of grid layout, initialize the [SfChart](https://help.syncfusion.com/wpf/charts/getting-started)and add the axes and series as shown below. **XAML** @@ -50,7 +50,7 @@ Learn step-by-step instructions and gain insights to create and dynamically upda - ..... + ...... @@ -59,7 +59,8 @@ Learn step-by-step instructions and gain insights to create and dynamically upda ``` -**Step 3:** The [HorizontalLineAnnotation](https://help.syncfusion.com/wpf/charts/annotations#vertical-and-horizontal-line-annotation) is initialized within the [Annotations](https://help.syncfusion.com/wpf/charts/annotations) collection of the [SfChart](https://help.syncfusion.com/wpf/charts/getting-started) to mark a dynamic target value on the Y-axis. The Y1 value is data-bound, enabling the target line to update dynamically based on the ViewModel. +**Step 3:** The [HorizontalLineAnnotation](https://help.syncfusion.com/wpf/charts/annotations#vertical-and-horizontal-line-annotation) is initialized within the [Annotations](https://help.syncfusion.com/wpf/charts/annotations) collection of the [SfChart](https://help.syncfusion.com/wpf/charts/getting-started) to mark a dynamic target value on the Y-axis. The Y1 property is data-bound to the ViewModel, allowing the target line to adjust dynamically when the value changes. + **XAML** @@ -118,7 +119,7 @@ internal class ViewModel : INotifyPropertyChanged } ``` -**Step 4:** The second column of the grid layout contains a StackPanel with a Slider, TextBox and TextBlock, allowing the user to change the annotation value dynamically. +**Step 4:** The second column of the grid layout contains a StackPanel with a Slider, TextBox and TextBlock, allowing the user to change the annotation value dynamically. The TextBox_TextChanged event ensures valid input by clamping values between 0 and the maximum of the Y_Axis. **XAML** @@ -134,6 +135,107 @@ internal class ViewModel : INotifyPropertyChanged ``` +**C#** + + ```csharp +private void TextBox_TextChanged(object sender, TextChangedEventArgs e) +{ + if (Y_Axis == null) return; + var maxValue = Y_Axis.Maximum; + + if (sender is TextBox textBox) + { + textBox.TextChanged -= TextBox_TextChanged; + + if (string.IsNullOrWhiteSpace(textBox.Text)) + { + viewModel.Y1 = double.MinValue; + textBox.Text = string.Empty; + } + else + { + if (int.TryParse(textBox.Text, out int newValue)) + { + if (newValue > maxValue) + newValue = (int)maxValue; + else if (newValue < 0) + newValue = 0; + + viewModel.Y1 = newValue; + + textBox.Text = newValue.ToString(); + textBox.CaretIndex = textBox.Text.Length; + } + else + { + textBox.Text = ((int)viewModel.Y1).ToString(); + textBox.CaretIndex = textBox.Text.Length; + } + } + + textBox.TextChanged += TextBox_TextChanged; + } +} + ``` + +**Step 5:** This XAML code for creates a grid layout with a chart and controls for adjusting a target line. The [SfChart](https://help.syncfusion.com/wpf/charts/getting-started) displays revenue data with a horizontal annotation line, adjustable using a TextBox and Slider in the adjacent StackPanel. + +**XAML** + + ``` + + + + + + + + + + + + + + + + + + + + + + + + + ..... + + + + + + + + + + + + + ``` + **Output:** @@ -145,4 +247,4 @@ Path too long exception If you are facing a path too long exception when building this example project, close Visual Studio and rename the repository to a shorter name before building the project. -For more details, refer to the KB on [how to create and dynamically update target line for WPF Chart?](https://support.syncfusion.com/agent/kb/18542). +For more details, refer to the KB on [how to create and dynamically update target line for WPF Chart](https://support.syncfusion.com/agent/kb/18542). From 5c4d471c73c266880a5fd74512fce32137a91782 Mon Sep 17 00:00:00 2001 From: tineshsf4652 Date: Mon, 13 Jan 2025 11:47:21 +0530 Subject: [PATCH 4/9] Update README.md --- README.md | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index e33adae..62a1bc2 100644 --- a/README.md +++ b/README.md @@ -134,7 +134,8 @@ internal class ViewModel : INotifyPropertyChanged ``` - +This code handles the TextChanged event for a TextBox, dynamically updating the Y1 property in the ViewModel while ensuring the value stays within the axis’s maximum and minimum bounds. It also manages text formatting and prevents recursive event triggers. + **C#** ```csharp From 172ee2fd39d16127f8a5d6d9658f666cede757c5 Mon Sep 17 00:00:00 2001 From: tineshsf4652 Date: Mon, 13 Jan 2025 11:53:37 +0530 Subject: [PATCH 5/9] Update README.md --- README.md | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) diff --git a/README.md b/README.md index 62a1bc2..d5ad72d 100644 --- a/README.md +++ b/README.md @@ -178,8 +178,8 @@ private void TextBox_TextChanged(object sender, TextChangedEventArgs e) } } ``` - -**Step 5:** This XAML code for creates a grid layout with a chart and controls for adjusting a target line. The [SfChart](https://help.syncfusion.com/wpf/charts/getting-started) displays revenue data with a horizontal annotation line, adjustable using a TextBox and Slider in the adjacent StackPanel. + +**Step 5:** This XAML code demonstrates a [SfChart](https://help.syncfusion.com/wpf/charts/getting-started) with dynamic updates to a horizontal target line annotation, bound to a ViewModel property. The chart includes X and Y axes, a column series, and customizable annotation styling. **XAML** @@ -226,18 +226,9 @@ private void TextBox_TextChanged(object sender, TextChangedEventArgs e) - - - - - - ``` - **Output:** ![DynamicTargetLine1](https://github.com/user-attachments/assets/aa0e643e-f62e-4d95-a596-7cd981484d47) From bae74ab1238cc39f7050b21d0cc9a8efa9ea40ff Mon Sep 17 00:00:00 2001 From: tineshsf4652 Date: Mon, 13 Jan 2025 15:14:57 +0530 Subject: [PATCH 6/9] Update README.md --- README.md | 49 +++++++++---------------------------------------- 1 file changed, 9 insertions(+), 40 deletions(-) diff --git a/README.md b/README.md index d5ad72d..b513f9e 100644 --- a/README.md +++ b/README.md @@ -66,20 +66,13 @@ Learn step-by-step instructions and gain insights to create and dynamically upda ```xml - + ..... + ....> - + ..... ``` @@ -178,27 +171,14 @@ private void TextBox_TextChanged(object sender, TextChangedEventArgs e) } } ``` - -**Step 5:** This XAML code demonstrates a [SfChart](https://help.syncfusion.com/wpf/charts/getting-started) with dynamic updates to a horizontal target line annotation, bound to a ViewModel property. The chart includes X and Y axes, a column series, and customizable annotation styling. +**Step 5:** This code defines a [HorizontalLineAnnotation](https://help.syncfusion.com/wpf/charts/annotations#vertical-and-horizontal-line-annotation)for a [SfChart](https://help.syncfusion.com/wpf/charts/getting-started), representing a horizontal line at a specified Y-axis value. It includes custom styling such as dashed stroke, text with font formatting, and text alignment settings. **XAML** ``` - - - - - - - - - - - + - - - + ..... - - - - ..... - - - - - - + ..... + + ``` **Output:** From 67a38545056e64a30b02da338b44527d1828f524 Mon Sep 17 00:00:00 2001 From: tineshsf4652 Date: Mon, 13 Jan 2025 15:15:31 +0530 Subject: [PATCH 7/9] Update README.md --- README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.md b/README.md index b513f9e..0b39bc6 100644 --- a/README.md +++ b/README.md @@ -171,7 +171,7 @@ private void TextBox_TextChanged(object sender, TextChangedEventArgs e) } } ``` -**Step 5:** This code defines a [HorizontalLineAnnotation](https://help.syncfusion.com/wpf/charts/annotations#vertical-and-horizontal-line-annotation)for a [SfChart](https://help.syncfusion.com/wpf/charts/getting-started), representing a horizontal line at a specified Y-axis value. It includes custom styling such as dashed stroke, text with font formatting, and text alignment settings. +**Step 5:** This code defines a [HorizontalLineAnnotation](https://help.syncfusion.com/wpf/charts/annotations#vertical-and-horizontal-line-annotation) for a [SfChart](https://help.syncfusion.com/wpf/charts/getting-started), representing a horizontal line at a specified Y-axis value. It includes custom styling such as dashed stroke, text with font formatting, and text alignment settings. **XAML** From 04c0dc827d470618ea9f259aa033daf7ea6c0b36 Mon Sep 17 00:00:00 2001 From: tineshsf4652 Date: Mon, 13 Jan 2025 15:39:38 +0530 Subject: [PATCH 8/9] Update README.md --- README.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index 0b39bc6..565b123 100644 --- a/README.md +++ b/README.md @@ -69,7 +69,9 @@ Learn step-by-step instructions and gain insights to create and dynamically upda ..... + Stroke="Black" + StrokeThickness="2" + ......> ..... From 652e8f9024bb1a60cd64591a90293918f6277548 Mon Sep 17 00:00:00 2001 From: VimalaThirumalaiKumarSF3739 <105496706+VimalaThirumalaiKumarSF3739@users.noreply.github.com> Date: Wed, 15 Jan 2025 10:53:49 +0530 Subject: [PATCH 9/9] Update README.md --- README.md | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index 565b123..440f042 100644 --- a/README.md +++ b/README.md @@ -27,7 +27,7 @@ Learn step-by-step instructions and gain insights to create and dynamically upda ``` -**Step 2:** In first column of grid layout, initialize the [SfChart](https://help.syncfusion.com/wpf/charts/getting-started)and add the axes and series as shown below. +**Step 2:** In first column of grid layout, initialize the [SfChart](https://help.syncfusion.com/wpf/charts/getting-started) and add the axes and series as shown below. **XAML** @@ -71,6 +71,7 @@ Learn step-by-step instructions and gain insights to create and dynamically upda