بدست آوردن IP و مرورگر و ویندوز کاربر در ASP.NET


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شما با باز کردن بسیاری از صفحات وب متوجه می شوید که آدرس IP و نام سیستم شما در بالای سایت نمایش داده می شود بنابراین بعضی از کاربران می خواهند که در سایت خود امکانی را قرار دهند تا زمانی که کاربری صفحه مربوطه را باز کرد آدرس IP و مشخصات سیستم مربوط به کاربر نمایش داده شود که برای این کار باید به صورت زیر عمل کنیم.

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استفاده از Modal بوت استرپ در فرم های ASP.NET MVC 5


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سلام خدمت شما ، در این مقاله میخوام با استفاده از Modal بوت استرپ فرم های ویرایش ، اضافه ، و حذف را در همان صفحه باز کنیم بدون اینکه صفحه ای جدا طراحی کنیم. این ایده ی نمایش مشاهده ی ویرایش استاندارد با ویرایشگرهای طبقه بندی شده ی استاندارد برای اشیای master و آرگومان های آن با لیستی از ویرایشگر ها که اجازه ی ویرایش لیستی از اشیای فرزندان را در همان صفحه دارند , است.

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آموزش دستور INNER JOIN در SQL


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خروجی دستور INNER JOIN در اس کیو ال از بین سطرهایی انتخاب میشود که حداقل یک رابطه در هر دو جدول وجود داشته باشد.

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آشنایی با Session State در Asp.Net


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در ابتدا لازم به ذکر است به این نکته اشاره کنیم که چرا ما به نگهداری وضعیت (state)مربوط به نرم افزار خود احتیاج داریم .همانطور که می دانید نرم افزاری که ما طراحی میکنیم stateless میباشد .به عبارتی دیگر یک instance جدید از صفحات وب با هر با ارسال صفحه به سمت سرور (postback) مجدد ایجاد میشود .HTTP یک پروتکل stateless می باشد و نمی تواند اطلاعات مربوط به کاربر را در صفحه نگهداری کند .به عنوان مثال اگر کاربر مقداری اطلاعات را در صفحه ثبت کند و سپس به صفحه ای دیگر برود اطلاعاتی که در صفحه قبل وارد کرده بود از بین می رود و علاوه بر این کاربر نمی تواند آن اطلاعات را بازیابی کند.

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آشنایی با کلاس SecureString در Net.


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به طور کلی در بعضی سناریو ها با اطلاعاتی حساس مانند رمز عبور ، شماره کارت اعتباری و یا اطلاعات شخصی افراد مواجه می شویم و این اطلاعات را در سراسر برنامه برای استفاده و اقدامات بیشتر بکار میبریم .عموماً ما از کلاس System.String استفاده می کنیم .سؤالی که پیش می آید این است که آیا این کلاس از امنیت لازم برخوردار است ؟

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