Questions tagged as 'asp.net'

Tagged questions
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Use Multiselect bootstrap "Does not show accents"

I do not know what I have to confirm to show me with an accent what I put in the nonSelectedText onInitialized: function($select, $container) { }, enableHTML: false, buttonClass: 'btn btn-default',...
asked by 08.11.2018 / 22:50
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Problems to activate Allow Unsafe. I can not run unsafe

I'm making a website published in hostlocal in C # and VisualStudio 2015. I need to set the AllowUnsafeBlocks option, for a class that uses pointers, but I can not. I'm sure it's silly, but I do not see it and I'm going crazy. When I open the...
asked by 02.11.2018 / 23:25
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ERROR: Another SqlParameterCollection already contains SqlParameter

I'm using SqlParameter, when I use it twice I get this error: {"Otro SqlParameterCollection ya contiene SqlParameter."} Here I use it the first time: SP2 using (ApplicationDbContext db1 = new ApplicationDbContext()) {...
asked by 28.10.2018 / 01:13
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Do not download the file to the browser using OutputStream.Write in ASP.NET WebService C #

I need to download a file located in the App_Data folder of my project, all the permissions are granted, I have the following code to download an .xlsx file by calling a WebService in C #, the result of the process is not error, but it does not...
asked by 29.10.2018 / 22:36
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The value of the specified String type of the data source can not be converted to the nvarchar type of the specified target column SqlBulkCopy

My problem is the following I am wanting to pass an excel file to sql server. When I take the file and I want to pass it, I throw this error:    "The value of the specified String type of the data source can not be   convert to the nvarchar t...
asked by 24.10.2018 / 18:20
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Problem when saving a file in a folder, which comes from type byte [] on the server when using WriteAllBytes in C #

I have the following function. private void guardarimagen( byte[] img) { var path = Server.MapPath("~/Images/prueba.jpg"); System.IO.File.WriteAllBytes(path, img); } EN localhost works fine, but when I tr...
asked by 11.10.2018 / 19:06
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Unable to load the file or assembly 'System.Web.Helpers'

I'm working on an asp.net mvc project with c #, everything was fine until I got this message. Error de servidor en la aplicación /. No se puede cargar el archivo o ensamblado 'System.Web.Helpers' ni una de sus dependencias. La definición del m...
asked by 15.10.2018 / 17:45
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Method to edit does not work ASP.NET MVC 5

I am working in a web application of a car dealership, I have a view to edit the object of type Automovil that has the following parameters: model, year of manufacture, color, price, transmission, fuel, brand, model, category , state, extra and...
asked by 06.04.2016 / 04:37
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Error converting DropDownList to Int32

I try to enter a value by means of a form and it generates this error, could you help me please this is the form <asp:Table id="Table1" runat="server" CellPadding="8" GridLines="Both" BorderColor="white" Height="419px...
asked by 30.10.2018 / 21:56
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Load table body with JSON. ASPX

I have the following table: <body> <table id="datas" align="center"> <thead> <tr> <th>Id</th> <th>Nombre</th> <th>Eda...
asked by 22.11.2018 / 01:18