Questions tagged as 'windows-forms'

Tagged questions
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How to validate the fields in the database?

I want to know how to validate when a number that is inserted from the application is greater than the value I have in the database so that it is not less than zero or when the value is equal to zero, I am programming in three layers, this It's...
asked by 22.06.2018 / 16:32
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How to update datagrid?

Good morning, I want my datagrid to be updated automatically, I have tried with this line of code;    this.almacenTableAdapter.Fill (this.almacenDataSet.almacen); but I have not been able to do it, the tabs without windows forms, I do the...
asked by 18.06.2018 / 23:09
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Crystal Report: Watermark

I am preparing a report in which you need to have a cross watermark on the report as such. But I had the problem that I can only define one image and send it back to simulate it in the section of the header and footer of the report....
asked by 13.06.2018 / 18:45
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SignalR use my IP

I am developing a console application that acts as a server using Signalr The idea is that users ask for information in real time to this server. At the time of working with localhost everything works perfectly now I am trying...
asked by 06.06.2018 / 14:48
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Designer error Visual Studio 2005

I have a windows forms project more than 10 years old developed in Visual Studio 2005. When I compile and execute it works well, the problem arises when I open the design screen, which does not come out, The following text appears:    .ErrorS...
asked by 12.06.2018 / 13:00
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Repeated serialization in Winforms C #

I need to do this link and I could do it, but I need to create some other Textbox and also read information from an XML file (but not the same one last XML file) I have tried that code but choosing the XML with an Openfiledialog, but it is sti...
asked by 27.05.2018 / 19:35
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How to make full screen Windows Form that hides the taskbar but not the title?

I have a Windows Form application, and each window has to load DEFAULT in a maximized way and every time it is in this state, hide the taskbar. The problem is that I searched and only found a property to make the full screen: private void Most...
asked by 30.05.2018 / 00:52
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Delete Control With Click In WindowsForms C #?

I need to click on a button, "select" that button, and by clicking on an erase button, that control will be deleted. How could I do that ?.     
asked by 24.05.2018 / 03:19
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Show only numeric keypad Winform

I am creating a Winform application in C # for tablet. I got the tactile keyboard on the screen when I press the textbox. But in some I just want to enter numbers. Can someone tell me how to show only the Windows numeric touchpad? Another opt...
asked by 30.05.2018 / 19:41
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Problems with the Combobox

I am working in Visual Studio with WinForms. I do the databinding with the combo box in the following way. cboCurrentSaison.DisplayMember = "Code"; cboCurrentSaison.ValueMember = "ElementID"; cboCurrentSaison.DataSource = eleSaiCur.Elements;...
asked by 20.06.2018 / 14:55