Questions tagged as 'c#'

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Get all the possible combinations

I need to get all the possible combinations of coins available to pay a ceiling price, but limiting the amount of coins to 3 units maximum of each value (to pay € 10 it does not cost 10 coins of € 1). With the following code I get a combinati...
asked by 17.08.2018 / 09:23
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help with the run time problem in a query statement Dapper c #

That such friends I am working an application with c # using the orm dapper. in case it is that in certain occasions I keep a certain number of records in a single execution, approximately 400 records. the problem is that sometimes, I throw an e...
asked by 17.08.2018 / 01:58
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Format of Date in column to export in Excel C #

I try to export a datatable to Excel but in some date columns I export them in number, I already tried sending from the database the information I need but it does not work.     
asked by 13.08.2018 / 16:53
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Windows Forms Message.Hub

Working with Windows Forms, Visual Studio 2015, Message.Hub I have time working with this event subscribe without problems, now I have the need to subscribe an event and it is executed before the Load event but it is not happening that, on th...
asked by 18.08.2018 / 20:17
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problems with dataset and reportviewer (mysql)

Hello all good night, I am starting with the reports in a small system in c # and mysql, I add a dataset and when I want to use the stored procedure it shows me this error: and if I try with a table, the same thing happens, create the e...
asked by 12.08.2018 / 02:08
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Help with search method and pagedList C # MVC

That such a friend I turn to you again to solve a problem that I think is simple but I could not find the solution. 1.- It turns out that I have a actions result in the following way. public ActionResult searchRequerimiento(searchRequerimi...
asked by 12.08.2018 / 12:32
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How to list rows combined in reportviewer?

List in that way once you upload my data to the reportviewer, my group is linked to the ID, RowNumber (Nothing) does not work for me because it only lists rows that are not combined     
asked by 22.08.2018 / 22:17
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Block keyboard input and only allow bar code reader input

I have the following problem, I want to restrict the entry of data to a textbox, which only allows the data to enter through a barcode scanner and prevent the user from typing the code, since to type the code has to enter as another type of user...
asked by 10.08.2018 / 16:15
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Progress bar .NET Razor C #

Friends I'm doing a program that loads VERY long files, in a database, I already have everything working, but I would like to implement a progress bar while my loading method is running, when I finish my method it will send me to another view. S...
asked by 08.08.2018 / 23:52
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Change column automatically EF

I have a field called Status: which can receive 3 values. How could the value of that field change depending on the condition of another field that is in my database? I am using entity framework 5 EF. Let's imagine that I have the following m...
asked by 08.08.2018 / 12:44