Questions tagged as 'c#'

Tagged questions
2
answers

Attach Dropdowlist Item and a li asp.net mvc

I have a View with dropDowlist that contains data that comes from the database and right down I put a buttom that when I click it will attach the selected dropdownlist item to a list, I made a code here but it is not appending if I putting defau...
asked by 01.02.2018 / 01:42
2
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How to manage threads in C #?

I'm developing a project and I think I'll need multithreading . While starting a new thread does not seem difficult, I can not seem to figure out if I have to finish the thread or it ends alone. My application will, at certain times,...
asked by 01.02.2018 / 10:18
1
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How to fill a Dropdown List with ASP MVC

Good afternoon, how can I populate a dropdown with data from a database using pure Ado.net (code) and without using Entity framework? I have two tables in my database that relate. First I must register a department and when registering a user...
asked by 07.02.2018 / 16:29
1
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Error handling in C #!

Galera, it's the following, in my application I would like a page to appear with the error occurred, but this page has all the formatting proposed in the layout, so this is not happening because it only generates a blank page with the error code...
asked by 29.01.2018 / 11:12
1
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Type conversion error when saving to database

My project has a frmAdicionarProduto form to add products to the database containing TextBox and ComboBox : txtProduto txtQuantidade cmbTipo txtValorFornecedor txtValorFinal txtLucro I'm having trouble saving...
asked by 25.04.2018 / 01:20
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How to design window2 on the secondary wpf screen?

Follow the code (MainWindow): using System.Windows.Forms; using System.Drawing; var win2 = new SegundaTela(); Screen s2 = Screen.AllScreens[1]; Rectangle r2 = s2.WorkingArea; win2.Top = r2.Top; win2.Left = r2.Left; win2.Show(); It is showi...
asked by 11.12.2017 / 19:22
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How to count repeated words in a string and find its position?

Imagine the Alphabet, in this alphabet you have words from A-Z, but suddenly there are several letters A, such as: A -BCDEFGHI- A -JKL- A -M- A -NOPQ- A The variable nomes below, is this alphabet. The variable procurar...
asked by 21.01.2018 / 21:24
1
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Save the form so that when it returns an error it does not delete the inputs

I am doing a registration system, when the data is correct it saves the bank in a good, when it gives error it returns where it is wrong but it erases everything that was filled or is not viable what I want is that when the user tries to registe...
asked by 29.12.2017 / 15:20
1
answer

Properties LinkLabel WindownsForms

Is it possible to use the LinkLabel property to open a type of Modal to display history of a certain item that is stored in a table? Example: AndinthisFormyouwouldbringthisinformationthatissuppliedfromthe% When you click on the...
asked by 03.01.2018 / 16:34
2
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Api with Array of items does not receive the data posted

I have an Api that receives the data posted as it shows the image, it happens that the data is coming empty, I appreciate the help. //http://localhost:49764/api/unidade/carrinho/consultaUnidadeAtendimento[HttpPost][Route("unidade/carrinho/co...
asked by 07.12.2017 / 13:30