[英]Why am I getting “parameter is not valid” exception on this code?
private void button8_Click(object sender, EventArgs e)
{
List<long> averages;
long res = 0;
_fi = new DirectoryInfo(subDirectoryName).GetFiles("*.bmp");
averages = new List<long>(_fi.Length);
for (int i = 0; i < _fi.Length; i++)
{
Bitmap myBitmaps = new Bitmap(_fi[i].Name);
//long[] tt = list_of_histograms[i];
long[] HistogramValues = GetHistogram(myBitmaps);
res = GetTopLumAmount(HistogramValues,1000);
averages.Add(res);
}
}
例外是在線:
Bitmap myBitmaps = new Bitmap(_fi[i].Name);
您只是將文件名傳遞給Bitmap
構造函數,但您實際上應該使用_fi[i].FullName
將完整路徑傳遞給該文件_fi[i].FullName
@Lester是正確的答案(+1),但我確實想說你可以通過使用一些函數式編程結構縮短你的實現並使其更具可讀性:
var averages = new DirectoryInfo(subDirectoryName)
.GetFiles("*.bmp")
.Select(t => new Bitmap(t.FullName))
.Select(GetHistogram)
.Select(v => GetTopLumAmount(v, 1000))
.ToList();
你試過.FullName
嗎? 那應該包括整個目錄。
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