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Hi, I want to develop RFID access system. I create a user database using Microsoft Access.When system and connection are ready, user will swap the card on the RFID reader and the card id will show on retrieve data column. The card id will use to compare with the data … |
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Hello all!! I am trying to create a Windows Form Application that allows a user to answer 10 questions. The program contains a 'next button so that when the user clicks it, the next question appears. My problem is trying to figure out how to code for the next button. … |
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having a problem with my databinding.I created a table adapter for a table from my database, it has 3 columns and when i preview the data it is all ok. I want to get a datagridview with the columns by dragging the datasource table on to the form but no … |
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How to dial and receive a call using asp.net |
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Hope somebody can help me regarding regular expression. I have a shortcode format "<!--myproductsku-->" in the string, I want to use regular expression to extract myproductsku. And if there is a match replace "<!--myproductsku-->" with "This is my myproductsku.". Rey |
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I have a form with a richtextbox (my chat box) and two textboxes (one for message one for username) now I need to understand how I can send a message from the one textbox to the richtextbox while other users who is also logged on also gets the message. I … |
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How to get the connection string? I'm developing an application and connecting to a database so I can get the connection string and know it during development pahase and therefore I can set it to the ConnectionString property of my connection object. However, when I deploy this application on a … |
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Hi all, Hi i have got a problem with the system i am creating on VB using Microsft Access. I have this error that keeps coming up when I debug my system. I am trying to add data in the database. I cant seem to find the solution to this … |
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if (con.State == ConnectionState.Open) con.Close(); con.Open(); SqlCommand c = new SqlCommand("select word,category from unwanted", con); //SqlCommand c = new SqlCommand("select word,category from unwanted where word ='"+txtWhatsOnYourHeart.Text+"' ", con); SqlDataReader r = c.ExecuteReader(); // if (r.Read()) while(r.Read()) { al.Add(r[0].ToString()); //a = r[0].ToString(); b = r[1].ToString(); } a = txtWhatsOnYourHeart.Text; int cnt=0; … |
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i need to copy my data from access database to sql database through coding in vb.net , and taking into consideration the duplicates each time i select from access database to copy to sql , any help thx |
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how to sort nos from a list! and print in another list? |
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hi, I want to spent the values of textbox to datagridview from another form and that after a click on the button add, help me please |
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Hi All, Apologies if this has been mentioned before, but haven't come across anything from my search... I have a strange issue at the moment where when I debug and step through my code, as soon as the first declaration (DIM statement) is stepped over, the value is being set … |
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I have following code for date and time in vb.net. I am not able to set timer in the textbox 4 and 5. What could be there in timer1 event? Dim theDate As Date theDate = Format(Now(), "short date") TextBox1.Text = theDate Dim mytime As System.DateTime Dim hours As Double … |
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Can any guy tell me what is the differnce between a datareader and a dataadapter? Also what are the other method to search data through SQL queries?? |
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this is what i want to do but it seems my code doesn't do what i wanted. when i select an item in cbo_Item i want to loop the corresponding Item_Stock into cbo_QTY where all the numbers below Item_Stock is shown in cbo_QTY...here is my code... Private Sub loop_QTY() Dim … |
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I am using vb.net with OleDb database. Following is my code, although i am to search database but not able to save after making changes. It displays following error at Command.ExecuteNonQuery level as OleDbException was unhandled, Data type mismatch in criteria expression. Imports.Sysytem.Data.OleDb Private Sub Form1_Load(ByVal sender As System.Object, ByVal … |
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Hi was wondering if anyone could take a look at my code and see whats going wrong here because I have changed the code about 20 times trying to fix the error and still no luck. I have created a web page that the user must fill out, I then … |
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Hi guys, i just faced a problem when trying to execute the following query.I searched for the exception on the internet and found that using a reserved keyword might raise this issue,and using brackets may solve this problem.But i use brackets all the time in my sql statements but still … |
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Hi everyone, I'm new here and is in need of some help. I'm trying to complete my project, however I'm stuck at writing the data from the sql into the vb.net/asp.net gridview. Was never good at database to start with and I had never learnt how to query from VB.NET. … |
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Hi I have a webform to allow users to register this information is stored in a Clients tables but I would like some of the information to be stored in another table that will store the username, security question and answer. I tried using two separate insert commands but it … |
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i am using vb.net application with OleDb database. In a form i have Search,Add,Edit,Delete buttons for the data. Although search data is working but Add,Edit,Delete are not working. Here is my code. Imports System.Data.OleDb Public Class Form1 Dim CN As New OleDb.OleDbConnection Private Sub Form1_Load(ByVal sender As System.Object, ByVal e … |
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Good day whiz coders. Please, i need help on swapping the first two elements in an array. For instance {"I", "am", "too", "handsome"} should turn to {"am", "I", "too", "handsome"}? |
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I m using VS2010 with SQL server 2008 at the backend. I m creating a windows application in which I have 2 listboxes.the data is being retrieved from SQL server database in listbox1.i want to select all itms from this listbox1 and add them to listbox2. And remove itms from … |
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i am picking list of names from database, according to scenario each name exists many times in database, That's ok. Now i have filled a DROPDOWNLIST with those names but in drop down list each name appears several times but i want to display each name 1 time in DROPDOWN. … |
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I developed a desktop application using C#, i used crystal reports for the purpose of diffrent reports. Crystal reports working well when i run through visual studio 2010. But after making its msi file all the features working well except the crystal reports. Niether application showing me any error nor … |
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The output that i get keeps repeating. For example, strInput= "orange~banana~banana~apple" but what i get is this output= "orange~orange banana~orange banana banana~orange banana banana apple" I'm pretty sure my regex is right. Any help would be much appreciated. Thanks! using (StreamWriter write = new StreamWriter(filePath, true)) { string[] line = … |
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i want to know is it possible to create a splash screen on c sharp to show for a certain amount of time than dissapear ? |
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how can i save different data to text file separated by commas and the text file shoul handle 5 records |
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Why isn't the Microsoft built in class Random class an type static class as the Math. class is. Why didn't they make this class static? |