Questions tagged as 'c#'

Tagged questions
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Access to RowCommand aspx - c #

I have a one-to-one table of documents and attachments, when I create a file, I have to attach a file to it I have these controls <asp:TemplateField HeaderText="Archivo" HeaderStyle-CssClass="text-center"> <ItemTemplate>...
asked by 11.04.2017 / 16:28
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Pass an array from classic asp to .net

Friends, I need to pass an array from classic asp to a dll made in .net, and in .net I wait for a string type [], how the hell do I do to pass that data from classic asp? Today I do it like this: Dim ws dim arreglo(0) Set ws = Server.CreateObj...
asked by 17.04.2017 / 21:15
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How to upload an excel file that is in a folder contained in the same path of the .exe?

I am developing a WFA that is used as a database based on an excel document (.xlsx), the content of the document provides the database of information with which the user works, currently the program works without any problem when the user manu...
asked by 10.04.2017 / 01:49
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Error, C # NullReferenceException was unhandled by user code

How can I solve this problem of NullReferenceException was unhandled by user code, where I have a table inserted and it tells me that the value that returns to me is null? using System; using System.Collections.Generic; using System.Linq;...
asked by 16.04.2017 / 21:15
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Error Inserting Image into Database [duplicated]

I have been trying several ways to insert an image in a database With Sql Server of different methods and none could work in which I send some errors, I can store data types string and int type without any problem but I can not save an image....
asked by 07.04.2017 / 22:33
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Conflict in windows form program with fixes in C # (Calculated data are not presented)

I am doing a practice for a physical case where it involves a resting object moving on an inclined plane where at the end of the slope the object falls freely, the falling object grabs even speed and travels a distance, asks to calculate the dis...
asked by 22.04.2017 / 00:25
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Linq to a Class with ListClass

I have a question, I am a bit new to this Linq, and I need your help. public class getHistorialInstalaciones { public string end_date { get; set; } public udataHistorialInteracciones udata { get; set; } public fromH...
asked by 07.04.2017 / 13:36
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Error to debugging App in Xamarin

I have an App for Android in Xamarin with Visual Studio 2017 ... but when I try to debug it in Visual Studio 2015 I get the following error ... Android application is debugging. The application could not be started. Ensure that the appl...
asked by 07.04.2017 / 14:08
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asp.net web form Form Authentication - Error 401.2, please help

I have a web project asp.net wen form, in emi web config I have the following: As you can see, it's quite simple, but when it comes to running the project, it sends me the following error: The properties of the project are:...
asked by 07.04.2017 / 13:42
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C # Unity read folders and subfolders

Good morning. I need my program to read the folders that I have inside a folder, and read the files that I have inside those folders (in this case an .exe and some .png) The goal is that for each folder that exists, a button with the image...
asked by 05.04.2017 / 19:05