我想从列表框和文件夹中删除选定的文件。现在它只是将其从列表框中删除。现在我希望它也从文件夹中删除。谢谢
private void tDeletebtn_Click(object sender, EventArgs e)
{
if (listBox1.SelectedIndex != -1)
listBox1.Items.RemoveAt(listBox1.SelectedIndex);
}
private void TeacherForm_Load(object sender, EventArgs e)
{
DirectoryInfo dinfo = new DirectoryInfo(@"data\\Teachers\\");
FileInfo[] Files = dinfo.GetFiles("*.xml");
foreach (FileInfo file in Files)
{
listBox1.Items.Add(file.Name);
}
}
最佳答案
如果您的 listBox1.Items
包含您的文件路径,您可以通过取消引用 filepath
简单地传递它并使用 File.Delete
删除它> 像这样:
private void tDeletebtn_Click(object sender, EventArgs e)
{
if (listBox1.SelectedIndex != -1){
string filepath = listBox1.Items[listBox1.SelectedIndex].ToString();
if(File.Exists(filepath))
File.Delete(filepath);
listBox1.Items.RemoveAt(listBox1.SelectedIndex);
}
}
也就是说,如果您使用 FullName
而不是使用 Name
将路径添加到 listBox1
:
DirectoryInfo dinfo = new DirectoryInfo(@"data\\Teachers\\");
FileInfo[] Files = dinfo.GetFiles("*.xml");
foreach (FileInfo file in Files)
{
listBox1.Items.Add(file.FullName); //note FullName, not Name
}
如果你不想在 listBox1
中不添加全名,你也可以单独存储 Folder
名称,因为它无论如何都不会改变:
string folderName; //empty initialization
.
.
DirectoryInfo dinfo = new DirectoryInfo(@"data\\Teachers\\");
FileInfo[] Files = dinfo.GetFiles("*.xml");
folderName = dinfo.FullName; //here you initialize your folder name
//Thanks to FᴀʀʜᴀɴAɴᴀᴍ
foreach (FileInfo file in Files)
{
listBox1.Items.Add(file.Name); //just add your filename here
}
然后你就可以像这样使用它:
private void tDeletebtn_Click(object sender, EventArgs e)
{
if (listBox1.SelectedIndex != -1){
//Put your folder name here..
string filepath = Path.Combine(folderName, listBox1.Items[listBox1.SelectedIndex].ToString());
if(File.Exists(filepath))
File.Delete(filepath);
listBox1.Items.RemoveAt(listBox1.SelectedIndex);
}
}
关于c# - 从列表框和文件夹中删除选定的文件,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/35813096/