Questions tagged as 'c#'

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Update value in database when changed cell value in DataGridView

I'm using a local database myself, created by a Bank class and I would like it when I change values in the DataGridView cells on the Register Customers screen, that same value would change on another screen, in the case I have a Register screen...
asked by 28.06.2018 / 18:41
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TreeView with Nodes & Childs through SQL database

I would like to know how I can TreeView popular with Nodes and Childs through an SQL connection. The connection is already done this is the code I have for now, but it does not work since it only adds a node that is the first one in the l...
asked by 27.06.2018 / 14:23
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Change Log-SqlServer Audit

I have a windows forms application and want to create a change control of the registers, a log where the value of the previous and current field is registered, date and user that changed, as well as insert and delete. Searching on the internet t...
asked by 27.06.2018 / 17:30
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Error Crystal Report

I am updating a .rpt, which worked perfectly, however I needed to make some changes, and it returns me error: Here is the code for how the Crystal Report report loads: SqlConnection connection = clsdb.AbreBanco(); SqlCommand command...
asked by 27.06.2018 / 18:36
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Error trying to create a view from a controller and a model

When trying to create a View from the Controller, using Asp.Net Core 2.0 Web Api, I have this error. This only happens when I: 1) Model - > List 2) Model class - > when I look in the Model folder for a file, in my case this: OperatorDet...
asked by 27.06.2018 / 18:22
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How to copy a simple string to another in a pointer struct (struct-string) [duplicate]

Would it be something like? strcpy (* struct-> string, string);     
asked by 05.07.2018 / 01:16
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How to pass a ternary as a binding in XAML

Hello, I'm creating a convert to a XAML application. The idea is that based on this convert I can return the value of the property Visibility to any UserControl or return the default value as you can see in that link : public...
asked by 26.06.2018 / 16:46
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How to get the version of sql developer? C #

How do I find out the sql developer version etc through code? C: \ Users \ User \ AppData \ Roaming \ SQL Developer [system3.1.07.42] [o.sqldeveloper.11.2.0.7.42] The system3.1.07.42 and o.sqldeveloper.11.2.0.7.42 folders are different depend...
asked by 27.06.2018 / 06:38
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Doubts the SendBird API to create a chat

Good evening guys, I'm doing a little project and I'm using the SendBird API to create a chat, but I'm having problems receiving the message that was sent from one user to another, could they help me? Here is the code to receive the message...
asked by 23.06.2018 / 23:57
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Sequence of characters with Marquee in C #

I'm developing an application that passes some information to users who are running it. The main idea is to make an informative track, but I have two problems that should be simple, which I would like as soon as I start to enter the words on the...
asked by 28.06.2018 / 22:52