vb.net

问题 Why does this keep telling me Syntax error in INSERT INTO statement I searched for more details but it keeps telling me this. This is the code : Imports System.Data Imports System.Data.OleDb Public Class f9 Dim ds As New DataSet Dim da As OleDb.OleDbDataAdapter Dim con As New OleDb.OleDbConnection Dim dbProvider As String Dim dbSource As String Dim sql As String Private Sub f9_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load dbProvider = "Provider=Microsoft

问题 Why does this keep telling me Syntax error in INSERT INTO statement I searched for more details but it keeps telling me this. This is the code : Imports System.Data Imports System.Data.OleDb Public Class f9 Dim ds As New DataSet Dim da As OleDb.OleDbDataAdapter Dim con As New OleDb.OleDbConnection Dim dbProvider As String Dim dbSource As String Dim sql As String Private Sub f9_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load dbProvider = "Provider=Microsoft

问题 I was wondering if there is a more efficient way of modifying the text in the console. For example: if I am keeping track of the number of events that have occurred, I'll print 0 events have occurred and as events occur I want to increment that 0. Currently I am doing that in a very ugly way: Keep track of everything printed to the console using a String or Stringbuilder and if I need to make any changes, change the string, clear the console, print the string to the console. Aside from

问题 I would like to use the canon EDSDK in a c# or VB.NET program, to view cr2 files. I have found sample code on how to control the camera - example: https://github.com/esskar/Canon.Eos.Framework but nothing about opening the files, extracting the image data and displaying it - or saving the thumbs or full sized image as a jpg... Could someone direct me to some such examples ? Thank you. Note - I have EDSDK 2.12, i hope older versions could also help. Edit: Thank you for the suggestion, it

问题 I would like to use the canon EDSDK in a c# or VB.NET program, to view cr2 files. I have found sample code on how to control the camera - example: https://github.com/esskar/Canon.Eos.Framework but nothing about opening the files, extracting the image data and displaying it - or saving the thumbs or full sized image as a jpg... Could someone direct me to some such examples ? Thank you. Note - I have EDSDK 2.12, i hope older versions could also help. Edit: Thank you for the suggestion, it

问题 I would like to use the canon EDSDK in a c# or VB.NET program, to view cr2 files. I have found sample code on how to control the camera - example: https://github.com/esskar/Canon.Eos.Framework but nothing about opening the files, extracting the image data and displaying it - or saving the thumbs or full sized image as a jpg... Could someone direct me to some such examples ? Thank you. Note - I have EDSDK 2.12, i hope older versions could also help. Edit: Thank you for the suggestion, it

问题 I would like to use the canon EDSDK in a c# or VB.NET program, to view cr2 files. I have found sample code on how to control the camera - example: https://github.com/esskar/Canon.Eos.Framework but nothing about opening the files, extracting the image data and displaying it - or saving the thumbs or full sized image as a jpg... Could someone direct me to some such examples ? Thank you. Note - I have EDSDK 2.12, i hope older versions could also help. Edit: Thank you for the suggestion, it

问题 I've adapted the code from the @tim-schmelter answer to question convert csv data to DataTable in VB.net (see below) I would like to parse in the column titles from row 0 of the csv file DT|Meter Number|Customer Account Number|Serial Number|Port... but I'm not having any luck trying to figure out how to do this. any suggestions would be very appreciated. Public Function csvToDatatable_2(ByVal filename As String, ByVal separator As String) '//////////////////////////////////////// 'Reads a

问题 I have created one button and applied image (.png with transparent background) on it. My button background is set on transparent but as you can see the background color is still there. How can I make this work as it should? 回答1: Give this a shot. 'Making Existing Button Transparent btnKasa.FlatStyle = Windows.Forms.FlatStyle.Flat btnKasa.FlatAppearance.BorderSize = 0 btnKasa.FlatAppearance.MouseDownBackColor = Color.Transparent btnKasa.FlatAppearance.MouseOverBackColor = Color.Transparent

问题 I have created one button and applied image (.png with transparent background) on it. My button background is set on transparent but as you can see the background color is still there. How can I make this work as it should? 回答1: Give this a shot. 'Making Existing Button Transparent btnKasa.FlatStyle = Windows.Forms.FlatStyle.Flat btnKasa.FlatAppearance.BorderSize = 0 btnKasa.FlatAppearance.MouseDownBackColor = Color.Transparent btnKasa.FlatAppearance.MouseOverBackColor = Color.Transparent