尝试将图标放在ObjectListview中,这是我应该放置图标的代码片段:
objectListView1.SmallImageList = imageList1;
deleteColumn.IsEditable = true;
deleteColumn.ImageGetter = delegate
{
return 0;
};
deleteColumn.AspectGetter = delegate
{
return "Delete";
};
imageList1已经有了一个图片,这段代码应该在“删除”旁边放一个图标,但它根本没有出现,通过食谱和谷歌查看,我仍然不知道。任何人都可以帮助我吗?
如果需要,这是完整的表单代码:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Security.Cryptography;
using System.IO;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
objectListView1.AllowDrop = true;
objectListView1.DragEnter += new DragEventHandler(objectListView1_DragEnter);
objectListView1.DragDrop += new DragEventHandler(objectListView1_DragDrop);
objectListView1.CellEditActivation = BrightIdeasSoftware.ObjectListView.CellEditActivateMode.SingleClick;
objectListView1.CellEditStarting += deleteItems;
objectListView1.SmallImageList = imageList1;
deleteColumn.IsEditable = true;
deleteColumn.ImageGetter = delegate
{
return 0;
};
deleteColumn.AspectGetter = delegate
{
return "Delete";
};
}
private void objectListView1_DragEnter(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.FileDrop))
{
e.Effect = DragDropEffects.Copy;
}
else
{
e.Effect = DragDropEffects.None;
}
}
private void objectListView1_DragDrop(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.FileDrop, true))
{
string[] droppedFiles = (string[]) e.Data.GetData(DataFormats.FileDrop);
foreach (string path in droppedFiles)
{
if (File.Exists(path))
{
FileObject fo = new FileObject(path, "added later");
objectListView1.AddObject(fo);
}
}
}
}
private void deleteItems(object sender, BrightIdeasSoftware.CellEditEventArgs e)
{
if(e.Column == deleteColumn)
{
e.Cancel = true;
objectListView1.RemoveObject(e.RowObject);
}
}
private void Form1_Load(object sender, EventArgs e)
{
}
}
}
答案 0 :(得分:6)
要使图像显示在列中文本旁边,您必须:
ObjectListView
连接到ImageList
(使用SmallImageList
属性); ImageGetter
委托; ImageList
。完成此操作后,将出现图像(我刚刚对其进行了测试)。
但有一个问题。从您的问题来看,我怀疑“删除”列可能不是ObjectListView
中的第一列。以上步骤仅允许您在第一列中显示图像。对于后续列,您必须将ShowImagesOnSubItems
属性设置为True。可能是吗?