需要一种获取图像并在占位符内返回图像的方法 [英] need a method that takes an image and return image within placeholder

问题描述

大家好，
我需要一种方法，可以给它一个图像，然后返回，它会给出放置在占位符中的相同图像，并在占位符上显示一个复选框..

thnx，

hi all ,
I need a method where I can give it an image and in returns it gives out the very same image placed within a placeholder with a check box displayed on the placeholder ..

thnx ,

推荐答案

听起来像您想要创建自己的自定义控件.您可能希望使用视觉设计器进行操作，但我想我将举一个示例说明您如何进行此操作.

首先是UserControl:

Sounds like you will want to create your own custom control. You will probably want to do the using the visual designer but I thought I would give an example of how you might go about doing this.

First the UserControl:

class CustomPictureBoxControl : UserControl
{
    public CustomPictureBoxControl(Image img, int width, int height, Color backgroundColor)
    {
        //you could also use something like 
        //this.Width = img.Width;
        //this.Height = img.Height + checkBox.Height;
        this.Width = width;
        this.Height = height;
        this.Padding = new System.Windows.Forms.Padding(5);
        this.BackColor = backgroundColor;
        PictureBox picBox = new PictureBox();
        //you could also pass the image path as a string
        //i.e. CustomPictureBoxControl(string imgPath)
        //in that case you would use picBox.ImageLocation = imgPath;
        picBox.Image = img;
        //or any of the other PictureBoxSizeModes
        picBox.SizeMode = PictureBoxSizeMode.StretchImage;
        CheckBox checkBox = new CheckBox();
        checkBox.Checked = true;
        checkBox.Text = "Some text if any";
        checkBox.Dock = DockStyle.Top;
        picBox.Dock = DockStyle.Fill;
        this.Controls.Add(checkBox);
        this.Controls.Add(picBox);
    }
}

以及如何使用它的示例:

And an example of how you could use it:

private void Form1_Load(object sender, EventArgs e)
{
    Image img = (Image)new Bitmap("test2.png");
    CustomPictureBoxControl customPicBox = CreateCustomPicBoxControl(img);
    this.Controls.Add(customPicBox);
}

private CustomPictureBoxControl CreateCustomPicBoxControl(Image img)
{
    CustomPictureBoxControl customPicBox = new CustomPictureBoxControl(img, 128, 128, Color.CornflowerBlue);
    return customPicBox;
}

当然，您将需要对其进行修改.希望对您有所帮助.

Of course you will need to modify it to your needs. Hope this helps some.

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