Questions tagged as 'asp.net'

Tagged questions
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answers

Problem with a Gridview filter

I have a Gridview that loads the data using a method from a TableAdapter. I need to filter by typing in a TextBox. I have this but it does not work: <asp:TextBox class="form-control" id="filtroAcompanantes" runat="server" /> <asp:...
asked by 23.01.2018 / 02:42
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Problem with DevExpress.Web.v11.1 and DevExpress.XtraReports.UI.XtraReport Version = 11.1.8.0

I recently migrated an ASP.net solution from VS2010 to VS2015 but at the time of running the project I get these errors: Severity Code Description Project File Line Suppression State Error 'Could not load file or assembly' DevExpress.Web.v11....
asked by 24.01.2018 / 19:31
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answer

Export to Excel data of a table in SQL

Hi, I'm doing a platform in asp.net with vb language and I need to export data from a sql table giving it a parameter in the application I'm doing, the only one way I could export this data was using a handler (generic driver), but only doin...
asked by 18.01.2018 / 20:44
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error in control from static method c # [duplicated]

I have a problem in bindear a gridview, since I need that when finishing the operations of a static method recharge the data of a gridview, place a breakpoint to know where the error was and it marks me when I assign the datatable to the datas...
asked by 05.01.2018 / 01:06
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The SelectCommand.Connection property has not been initialized. MySql

It turns out that I'm working with SignalR, where in the html view I make the following request to the client: var myHub = $.connection.myHub; var direccionWeb = $("#direccionWeb").val().toString(); $.connection.hub.url = dire...
asked by 27.12.2017 / 19:51
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ASP.NET CORE EF Specified cast is not valid

Sorry I do not understand why you do not let me list my model, I have this image with the error public IEnumerable GetBalances ()         {             var list = new List (); using (var db = new ApplicationDbContext())...
asked by 21.12.2017 / 18:21
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Error: System.Net.Sockets.SocketException: Unknown host. In asp.net

Dear, along with saying hello I wanted to ask the following question to the problem that came up: I happen to be doing some tests to work with SignalR, in which the results are successful when I do the tests on localhost, but when I publish t...
asked by 19.12.2017 / 17:26
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The javascript code does not send to the controller

I am doing a web application in C # ASP.NET MVC5, I need in the view to validate a dropdownlist that is not empty, and when it is full send the data to the controller. JavaScript function Validar() { var pais_id = document.getElementB...
asked by 18.12.2017 / 21:20
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Double data in a grid Web Progamacion

I'm new to web programming and I wanted to know why when I call my information to a grid I get double data, help porfaaa     
asked by 07.12.2017 / 03:11
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The specified string is not in the required form for an e-mail address

Hello, I am trying to send an email from ASP.NET but something is wrong with me, I found that to use the mailer I should not pass plain text to it than variables , but my valuable is a String , I do not know if I'm passing something else....
asked by 13.12.2017 / 21:00