问题描述
我想使用 webapi 从列表框和数据库中删除值,但我不知道如何在删除按钮后面实现它。
private void RemoveCategory_Click(object sender,EventArgs e)
{
AddCategory category = new AddCategory
{
CategoryOfSongs = txtCategoryOfSong.Text
};
var client = new HttpClient
{
BaseAddress = new Uri("http://localhost/JB/api/")
};
client.DefaultRequestHeaders.Accept.Clear();
var response = client.DeleteAsync("Category/DeleteCategoryList").Result;
if (response.IsSuccessstatusCode)
{
MessageBox.Show("Deleted!");
}
else
{
MessageBox.Show("Not Deleted!");
}
}
[HttpDelete]
[ActionName("DeleteCategoryList")]
public HttpResponseMessage DeleteCategoryList(string CategoryName)
{
try
{
using (JukeBoxApp db = new JukeBoxApp())
{
var query = db.categories.FirstOrDefault(c=> c.CategoryOfSongs == CategoryName);
if (query != null)
{
db.categories.Remove(query);
db.SaveChanges();
return Request.CreateResponse(HttpStatusCode.OK,"Record Delelted Successfully!");
}
else
{
return Request.CreateResponse(HttpStatusCode.NotFound,"Record not found again Category " + CategoryName + " !");
}
}
}
catch(Exception ex)
{
return Request.CreateErrorResponse(HttpStatusCode.BadRequest,ex);
}
}
解决方法
暂无找到可以解决该程序问题的有效方法,小编努力寻找整理中!
如果你已经找到好的解决方法,欢迎将解决方案带上本链接一起发送给小编。
小编邮箱:dio#foxmail.com (将#修改为@)