/// <summary>
/// Generates label objects based on the values returned from the Fetchtasks() values stored in labelNames
/// </summary>
public void GenerateLabelsAndButtons()
{
foreach (var text in labelNames)
{
Label label = new Label();
label.Text = text;
label.Size = new Size(60, 20);
label.Location = new Point(labelStartX, labelStartY);
label.BackColor = Color.Transparent;
label.AutoSize = true;
label.Font = new Font("Segoe UI", 20);
label.MaximumSize = new Size(260, 0);
label.Click += DeleteClicked;
Button delete = new Button();
delete.Size = new Size(32, 32);
delete.Location = new Point(labelStartX + 260, labelStartY + 5);
delete.Name = text;
delete.Image = Image.FromFile("trash.png");
delete.Click += DeleteClicked;
labelStartY += 50;
// Add the generated item to the actual label collection
MyLabels.Add(label);
MyDelete.Add(delete);
form.Controls.Add(label);
form.Controls.Add(delete);
}
labelStartY = 90;
}
//delegate：委托是一种数据类型，像类一样。（可以声明委托类型变量），方法参数可以是int,string、类类型。
void TestDelegate()
{
//2.声明委托变量md，并且new了一个委托对象并且把方法m1传递进去。那md委托保存了M1方法。
MyDelete md = new MyDelete(M1);
//3。调用md委托的时候，相当于调用了m1方法。
md();
Console.WriteLine("OK");
}
/// <summary>
/// Cleares all stored info about the tasks so that it can be retrieved again if a change has been made
/// </summary>
public void UpdateLabelsAndButtons()
{
foreach (var label in MyLabels)
{
form.Controls.Remove(label);
}
foreach (var button in MyDelete)
{
form.Controls.Remove(button);
}
labelNames.Clear();
MyLabels.Clear();
MyDelete.Clear();
}
//删除文件/文件夹
private void delete_Click(object sender, EventArgs e)
{
//SelectedItems.Count代表listView中选中的数目
//删除treeView中的文件
MyDelete d = new MyDelete();
if (listView1.SelectedItems.Count == 0)
{
string treeViewSeletedFolderPath = treeView1.SelectedNode.Tag.ToString();
if (treeViewSeletedFolderPath != null)
{
if (d.DeleteFolder(treeViewSeletedFolderPath))
{
MessageBox.Show("删除成功！");
}
else
{
MessageBox.Show("删除失败！");
}
}
}
//删除listView中的文件
else
{
int deleteFiles = 0;
int deleteFolders = 0;
bool tag = true;
ListView.SelectedIndexCollection indexs = listView1.SelectedIndices;
DirectoryInfo currentFolder = new DirectoryInfo(treeView1.SelectedNode.Tag.ToString());
//获取本文件夹下的所有子文件夹
DirectoryInfo[] subFolders = currentFolder.GetDirectories();
int folderNum = subFolders.Length;
//Console.WriteLine("folderNum:"+folderNum);
//获取本文件夹下的所有文件
FileInfo[] files = currentFolder.GetFiles();
foreach (int index in indexs)
{
//remove时文件夹中的文件减少i个，剩余文件的index也需要减少i
listView1.Items.RemoveAt(index - deleteFiles - deleteFolders);
//Console.WriteLine(index);
//删除文件
if (index >= folderNum)
{
//文件的路径
string filePath = treeView1.SelectedNode.Tag.ToString() + "/"
+ files[index - folderNum].Name;
//若存在文件夹删除失败，则break
if (!d.DeleteFile(filePath))
{
tag = false;
break;
}
deleteFiles++;
}
//删除文件夹
else
{
//文件夹的路径
string folderPath = treeView1.SelectedNode.Tag.ToString() + "/"
+ subFolders[index].Name;
//若存在文件夹删除失败，则break
if (!d.DeleteFolder(folderPath))
{
tag = false;
break;
}
deleteFolders++;
}
}//end foreach
if (tag)
{
MessageBox.Show("删除成功！");
}
else
{
MessageBox.Show("删除失败！");
}
}
TreeNode i = treeView1.SelectedNode;
treeView1.SelectedNode.Parent.Collapse();
treeView1.SelectedNode.Expand();
treeView1.SelectedNode = i;
i.Expand();
}