使用列表框显示图片? [英] Display pictures using a listbox?

问题描述

我正在制作Windows窗体，该窗体允许人们从不同类型的电影中选择电影.现在，我使用列表框来显示电影和流派的列表.当用户选择一种流派时，该流派的电影将显示在另一个列表框中.现在，我想要的是当用户从列表框中选择影片时在图片框中显示图片.我这样做是为了显示电影信息，但是我不确定如何对图片执行此操作.

I''m making a Windows form which allows people to select a film from different genres. Now i''ve used list boxs to display the list of films and genres. When a user selects a genre, the films from that genre are displayed in another list box. Now what I want is for a picture to be displayed in a picture box when the user selects a film from the listbox. I''ve done this for displaying film information, but im not sure how to do this for pictures.

推荐答案

处理ListBox的SelectedIndexChanged 事件并根据新选择更新PictureBox .

Handle the ListBox''s SelectedIndexChanged event and update the PictureBox according to the new selection.

我已经非常详细地回答了类似的问题，请参见我的代码:

从列表框中显示图像 [ ^ ].

答案是关于WPF的，但是System.Windows.Forms的实现几乎相同.

—SAKryukov

I''ve already answered the similar question in a very detailed manner, please see my code:

Displaying an image from a list box[^].

The answer is about WPF, but System.Windows.Forms implementation is nearly identical.

—SAKryukov

我想显示我的应用程序示例

首先，我创建一个comboBox(comboBox1)和pictureBox(pictureBox1)
在comboBox1中有以下4个项目
蓝山
日落
睡莲
冬天
然后在comboBox1_SelectedIndexChanged事件中编写以下代码

I want to show sample of my application

First I create one comboBox(comboBox1)and pictureBox(pictureBox1)
In comboBox1 have following 4 items
Blue hills
Sunset
Water lilies
Winter
And then write following code in comboBox1_SelectedIndexChanged event

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
      {
          string filepath = @"C:\Documents and Settings\All Users\Documents\My Pictures\Sample Pictures\" + comboBox1.SelectedItem.ToString().Trim() + ".jpg";
          if(File.Exists(filepath)){
          pictureBox1.ImageLocation = filepath;
          pictureBox1.Load(filepath);
          pictureBox1.Update();
          pictureBox1.Refresh();
          pictureBox1.Visible = true;
          }
      }

启动时，我使pictureBox1的可见状态为false.

也许有帮助

Theingi Win

When started i make pictureBox1''s visible is false.

Maybe helpful

Theingi Win

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