Questions tagged as 'vb.net'

Tagged questions
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Detect Connection

Good friends, I need help. I'm making an application in .Net. What I need is to have a property or a function that automatically when I connect to the computer where the application shows me a message or something that identifies that I am conne...
asked by 24.08.2017 / 16:36
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Add selected items with checkobx in a gridview to a textbox

I have a Gridview where I have several columns, the last one has numeric values, my gridiview poses a checkbox, what I want to do is to do a check in one or more rows, add the amounts to a texbox, try several ways as you will see low but I could...
asked by 23.08.2017 / 18:14
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Notify if a record already exists in the database before entering, filtering for three conditions. in visual basic and sql server

Dear good afternoon, I have the following dilemma, I can not do that in my system in visual basic with sql server database, at the moment of wanting to record a new datum in the table, if it exists, warn me of it, fulfilling three conditions at...
asked by 21.07.2017 / 19:45
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SelectionChanged in datagridview does not behave properly

I am developing an application in VB.NET 2010 in which I have a form, a datagridview that is filled with data. When I complete the DGV load I do the following: Me.DataGridView1.ClearSelection() Below I have a series of textboxes, combos, et...
asked by 16.08.2017 / 11:34
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How to update table from Gridview

I have the following gridView with a column of type CheckBox, what I'm looking for is to load in the GridView the data of a table, once the data is loaded, select with the CheckBox the fields that require changing the status and once the fields...
asked by 25.07.2017 / 23:20
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I can not close the parent form and child form from the child form

I have a project that contains a login that when entering as an administrator, an MDI window is displayed, which is a configuration window and from there you can open the main window (both are open). In the main window I have a button that close...
asked by 05.07.2017 / 04:51
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Problem with Jquery. * Failed to load resource: net :: ERR_CONNECTION_RESET

I'm getting through a web service the base64 url of an image that is obtained by opening an openfiledialog. This is the function that consumes the service: $('#Services').click(function () { $.ajax({ type: 'GET', url: '...
asked by 05.07.2017 / 21:16
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Problem when obtaining value from a variable VB.net

veran I have a function that is responsible for moving a linear motor, for this I compare two values and if they are equal, the movement function is executed. While contador1 <= total1 MsgBox("") If slide1 = desde Then Try...
asked by 29.06.2017 / 11:31
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Windows Local Web Service

I'm trying to create a local windows service in vb with asp.net. Following this example In one of the steps it says:    In the designer, click ServiceProcessInstaller1 for a Visual Basic   project, or serviceProcessInstaller1 for a Visua...
asked by 29.06.2017 / 15:27
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How to find all the objects that implement ICollection?

Given this property: Public Overridable Property Collecions As ICollection(Of String) Which we could instantiate like this: variable.Collecions = New List(Of String) Or like this: variable.Collecions = New LinkedList(Of String) Th...
asked by 12.07.2017 / 17:48