Question

我正在制作图表程序，我希望用户能够快速有效地自定义图表。我创建了一个属性网格，允许他们这样做。我已经用图表的属性填充它，但删除了我不希望用户有权访问的某些元素。例如，我不希望用户能够访问辅助功能选项。到目前为止我所拥有的是

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
        magRadioBox.Checked = true;
        PropertyGrid propertyGrid1 = new PropertyGrid();
        propertyGrid1.CommandsVisibleIfAvailable = true;
        propertyGrid1.Text = "Graph and Plotting Options";
        propertyGrid1.PropertyValueChanged += propertyGrid1_PropertyValueChanged;

        this.Controls.Add(propertyGrid1);
    }
private void Form1_Load(object sender, EventArgs e)
{
this.Text = "MY Plot Program";
propertyGrid1.SelectedObject = chart1; 
}

private void button1_Click(object sender, EventArgs e)
 {//some code that is populating my chart(chart1) with data 
 .... //chart1 being filled with data 
 }

private void propertyGrid1_PropertyValueChanged(object s , PropertyValueChangedEventArgs e)
{
//Calling the method that will refresh my chart1 
myChart.Invalidate(); 
}

以上代码适用于我的表格。我下面的“MyChart”类代码设置了我的属性网格。我自动获取图表的所有属性，然后通过将其设置为[Browsable(false)]

，可以“挑选”我不希望用户拥有的那些属性

namespace FFT_Plotter
{ 
    [DefaultPropertyAttribute("Text")]
    public class MyChart : Chart 
    {
        public event EventHandler PropertyChanged;
private void OnPropertyChanged(object sender, EventArgs e)
{
EventHandler eh = propertyChanged;
if(eh !=null)
{
eh(sender, e);
}
        [BrowsableAttribute(false)]
        public new System.Drawing.Color BackColor
        {
            get { return BackColor; }//Here back color is just an example of a property, not necessarily one that I would make non-Browsable
            set { 
base.BackColor = value; 
OnPropertyChanged(this,EventArgs.Empty);
}
        }
    }
}

上面的类让我得到了一个具有图表所有属性的属性网格，并允许我隐藏这些属性，因为我认为合适。但是现在我无法理解如何将chart1连接到我的属性网格。一个例子是我从网格中删除了text属性。它不再对用户可见。现在我希望能够在网格中更改BackColor，这意味着我的chart1背面颜色会发生变化。

Answer 1

好的，我拿了你的代码并做了以下操作，现在更改属性网格中的背景颜色会改变图表的背景颜色：

Form1 -

public partial class Form1 : Form
{
    private PropertyGrid propertyGrid1;

    public Form1()
    {
        InitializeComponent();
        //propertyGrid1 = new PropertyGrid();
        propertyGrid1.CommandsVisibleIfAvailable = true;
        propertyGrid1.Text = "Graph and Plotting Options";
        propertyGrid1.PropertyValueChanged += propertyGrid1_PropertyValueChanged;

        this.Controls.Add(propertyGrid1);
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        this.Text = "MY Plot Program";
        propertyGrid1.SelectedObject = chart1; 
    }
    private void propertyGrid1_PropertyValueChanged(object s, PropertyValueChangedEventArgs e)
    {
        //Calling the method that will refresh my chart1 
        chart1.Invalidate();
    }
}



[DefaultPropertyAttribute("Text")]
public class MyChart : Chart 
{

    public event EventHandler PropertyChanged;
    private void OnPropertyChanged(object sender, EventArgs e)
    {
        if(PropertyChanged !=null)
        {
            PropertyChanged(sender, e);
        }
    }

    [BrowsableAttribute(false)]
    public new string Text { get; set; }


    [BrowsableAttribute(true)]
    public new System.Drawing.Color BackColor
    {
        get { return base.BackColor; }//Here back color is just an example of a property, not necessarily one that I would make non-Browsable
        set 
        { 
            base.BackColor = value; 

            OnPropertyChanged(this,EventArgs.Empty);
        }    
    }     
}

此外，在您的Form1.Designer.cs文件中，您将chart1定义为`System.Windows.Forms.DataVisualization.Charting.Chart，您需要在新版本的部分中将其更改为MyChart 'd（需要搜索Charting.Chart）

如何使用Chart类的个性化属性网格？

1 个答案: