每当我尝试获取用户myPage时，该myPage的ImageGallery始终为null，因此，我无法添加potrait并更新myPage。下面是我的代码。
Image portraitImage = new Image(null, imageName, String.Empty, author, memoryStream);
portraitImage.Status = EntityStatus.Approved;
// Update the user's my page with the new image
MyPage myPage = (MyPage)MyPageHandler.Instance.GetMyPage(commonUser).CreateWritableClone();
myPage.Portrait = portraitImage;
MyPageHandler.Instance.UpdateMyPage(myPage);
MyPageHandler.Instance.UpdateMyPage(myPage)总是抛出错误，说myPage.ImageGallery为空。
答案 0 :(得分：1)
您没有在代码中的任何地方设置#include <stdio.h>
#include <string.h>
#include <stdbool.h>
const char numbered_letters[10][5] = {"", "", "abc", "def", "ghi", "jkl",
"mno", "pqrs", "tuv", "wxyz"};
bool startsWith(const char *pre, const char *str) {
size_t lenpre = strlen(pre),
lenstr = strlen(str);
return lenstr < lenpre ? false : strncmp(pre, str, lenpre) == 0;
}
void isEqual(char input[]) {
int i = 0;
//input[strlen(input)] = 0;
startsWith(input, input);
printf("check: %s\n", input);
//creating file
FILE *fp = fopen("words_alpha.txt", "r");
char str[32]; /* Handles largest possible string in the list which is: dichlorodiphenyltrichloroethane*/
//fseek(fp, 0, SEEK_SET);
if (fp == NULL) {
printf("Error! No file!\n");
} else {
//printf("Enter a number to be converted into a word-list");
//scanf("%s", str);
while (!feof(fp)) {
fscanf(fp, "%s", str);
i = strncmp(input, str, 32);
if (i == 0) {
printf("HIT: %s \n", input);
break;
} else {
printf("");
}
//if (strncmp(str, "hello", 32 ) == 0) { /*if strncmp finds the word and returns true, print */
// printf("%s\n", str);
}
//printf("%s\n", str);
//compareNums(num);
}
fclose(fp);
}
void printWordsUtil(int number[], int curr_digit, char output[], int n) {
// Base case, if current output word is prepared
int i;
if (curr_digit == n) {
//printf("%s ", output);
isEqual(output);
return;
}
// Try all possible characters for current digit in number[]
// and recur for remaining digits
for (i = 0; i < strlen(numbered_letters[number[curr_digit]]); i++) {
output[curr_digit] = numbered_letters[number[curr_digit]][i];
printWordsUtil(number, curr_digit + 1, output, n);/* recursive call */
if (number[curr_digit] == 0 || number[curr_digit] == 1)
return;
}
}
// A wrapper over printWordsUtil(). It creates an output array and
// calls printWordsUtil()
void printWords(int number[], int n) {
char result[n + 1];
result[n] = '\0';
printWordsUtil(number, 0, result, n);
}
//Driver program
int main(void) {
int number[] = {4, 3, 9};
int n = sizeof(number) / sizeof(number[0]);
printWords(number, n);
return 0;
}
属性。您设置的唯一属性是ImageGallery
Portrait