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我試圖保存用戶創建的帖子,我一直在用戶名上留空,所以後端崩潰。選擇標籤上的Ng模型返回null/undefined
的HTML:
<select name="user" class="input">
<option value="" ng-model="post.Username" ng-repeat="user in users">{{user.Name}}</option>
</select>
控制器:
var NewPostController = function ($scope, $location, $routeParams, Post) {
$scope.post = new Post();
$scope.save = function() {
Post.save($scope.post, function() {
console.log($scope.post);
$location.path('/');
});
}
這是我DAL-部分:
public void AddPost(Post post)
{
SqlConnection con = new SqlConnection("Server=localhost;Database=XXX;User Id=XXX;Password=XXX;");
string sql = "INSERT INTO Post (Title, Comment, Date, Imagelink, Username) VALUES(@Title, @Comment, @Date, @Imagelink, @Username)";
con.Open();
SqlCommand cmd = new SqlCommand(sql, con);
cmd.Parameters.AddWithValue("@Title", post.Title);
cmd.Parameters.AddWithValue("@Comment", post.Comment);
cmd.Parameters.AddWithValue("@Date", "2015");
cmd.Parameters.AddWithValue("@Imagelink", post.ImageLink);
cmd.Parameters.AddWithValue("@Username", post.Username);
cmd.ExecuteNonQuery();
}
現在的下拉是完全空白:P – btmach
OPSS!我的錯。我忘記了大括號。請檢查我的更新到答案。 –