Clearing Multiple Text Fields
Aug 2, 2010
I tried searching for a solution, but couldn't find anything, so if I am re-asking a common question, don't beat me too badly. For a class, I have to create a form that allows someone to enter in the names of six students, as well as five test scores each. It also averages the scores, and displays them in a label.
What I am wondering is if there is a way to clear the text from all 36 text fields, as well as the 6 labels without having to do everything individually?
I could certainly go through, and write out txtField1.text = String.Empty 36 times, but it seems there would be a more elegant solution. Also, if there is a way to do so, would the same would apply for putting the data entered into an array, or saving it to a file?
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Apr 28, 2010
web page has a few fields to allow the user to enter payments. After the system processes the payments, the fields weren't cleared out.so my task is to simply clear them out.[code]The procedure is writing an HTML receipt into the strBody and displaying it to the user.They see the 'File download, do you want to open or save this file' and can open the receipt in ms-word. Without those three lines, the resetting works. So clearly they are messing up something, I just don't understand what.I've got a workaround, but I'd like to know what is going on.Even to the tune of is this a correct way of creating/downloading a document.This in an inherited system, the original designer is long gone.
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Nov 7, 2011
Issue: The .xls file has about 800 records but it's only importing about 480 records. I step through each row and find out that some rows have null values.After spending some time I believe I figured out why this is happening. My first field is a SKU value. The first x rows have all numeric values. Then it gets to a SKU like '1234-SE' and this row doesn't have data. So it's like it takes on the field type of the first data type.Question: Is there a way to order the data before I populate the dataset? I tried to do an order by but didn't work.My current code that is not working as I want.**NOTE: I have tried 'ORDER BY SKU ASC' and didn't work as well.
Sub FillDataSet(ByVal sFile As String, ByVal sTab As String)
Dim containsHDR As String = "Yes" 'Change to "No" if it doesn't
Dim strConn As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source='" & _
[code].....
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Nov 29, 2009
I have a text file in this format
Date TimeTickerSectorOpenHighLowCloseVolumeAsk AskVolBid Bid VolMidSpread Fact1
200802069:30:00AAPL45130.88130.88130.88130.88294028130.93850130.92700130.9250.500000
200802069:30:05AAPL45130.92130.95130.82130.9417294130.95700130.94100130.945-0.200000
[CODE]...
Basically I would like to read in this file line by line and separate every every field into a custom variable and then do some processing. So, I would read in the first record and put the data into these fields
date
time
ticker
sector
open
high
ETC
I started coding this using a TEST file that only had two fields name and a number
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Dim FILE_NAME As String = "C:aaple2.txt"
[CODE]...
I got an unhandled exception on this line: mNum = objReader.ReadLine
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Feb 7, 2010
I have several textboxes in a form, and have a button which inserts all the values in a Database and I have to clear the content of all the textboxes and focus to the first one right after pressing the button.Now I can easily do that using the Clear method of each of the textboxes but it takes 10-12 lines of code just for that. Can I do that in one go?
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Feb 13, 2012
how to execute this SQL Statement
Scenario:
Given Tables T_Data, T_AllDesc, T_System1, T_System2
Given Fields:
T_Data= f_id, f_Desc, f_CreationDate, f_CreationTime, f_System1, f_System2
[Code].....
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Sep 3, 2009
experience on how to create an engine using C# (VB.NET is okay too) that is generic enough to handle most cases of MS Word text fields I need to fill with data I'm getting from a database? In short, I'm about to embark on this little Office automation excursion and I'm hoping a little bit of feedback here.
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Apr 19, 2011
Option Explicit On
Option Strict On
Public Class formFat
[Code]....
i have discovered a way to clear just errors in text boxes involving =>0 using if statements. if i could use the same and state if <> numeric then etc.
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Jun 18, 2012
I am new in VB2008. How I can programmtically delete/remove/clear the content of a cell of DataGridView? Say, for example, I have the following code that populates with data in DataGridView. Now,how can I clear/delete the "Test4" text from the cell of DataGridView? The GridView is not bound to any database.
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim dt As New DataTable
dt.Columns.Add("income")
[Code] .....
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Aug 26, 2010
I have a combo box that is set to dropdownlist. After a user enters and saves the data, the data for all non-dropdownlist fields auto clears. How do I clear the data for this type of field? I have tried combobox.text = "" but that does not work. There are no data bound items with this combo box.
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Mar 3, 2010
In a for each loop I am adding rows to a table for a cross reference. Using the following code:
For Each cp In pCheckPoints
If cp <> String.Empty Then
Dim insertSQL As New StringBuilder
With insertSQL
.Append("INSERT INTO [CheckpointMessage] ( ")
Without the objCommand.CommandText = String.Empty line the CommandText is appending the insertSQL but that doesn't make any sense to me because I would expect the objCommand's commandText to be empty since it is in a using block.
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Feb 21, 2011
I'm making a simple IRC client for myself because I really don't see the need for a lot of mIRC's functionality, but I'm having problems cleaning up the input from the server.
Right now, on connect, I'm getting the following:
[16:37] :young.home.net NOTICE AUTH :** Looking up your hostname...
:young.home.net NOTICE AUTH :** Found your hostname
PING :DE7AED31
[16:37] :DE7AED31!nospoof@young.home.net PRIVMSG Logan :VERSION
:young.home.net 451 PING :You have not registered .....
I've read the IRCP (RFC 1459) and I understand the formatting of the server input, but I can't seem to strip out the unwanted stuff... A friend suggested loading the input into an array and deal with each item individually, but I can't seem to make it work. I have tried, but it doesn't seem to make a difference...
Here's my code
Public Function recv() As String
Dim mail As String
Try
Dim Data(4096) As Byte
sock.Receive(Data, 4096, Net.Sockets.SocketFlags.None)
[Code] .....
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Feb 17, 2011
write a macro that removes the letters "TBD" from any cell it is in in a range of cells (J5:PJ421)n a different worksheet. This is probably very simple, but I am new to VBA and can't figure it out.
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Sep 5, 2011
When an item is selected from the list it displays in the text field of the combo box and I want to clear it without clearing the items in the list. I've tried [dropdown list_name].text = ""[Eg:- CBSelect.Text = ""] but it doesn't work since the text entering field in a drop down list box is read only.How should I do that. By the way, I'm coding in VB.NET 2005 so please give answers in VB.NET 2005.And my selection is from combobox its clear. same combobox property ( DropDown style = DropDown List ) text is not clear.
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Apr 3, 2010
The below sub-procedure isn't working like I expect it to. Basically, I have 9 fields on a tab control. When a user clicks in one of the fields, I wish for the field to "SelectAll" if their is a value already in the field. As you can see, the way I have it structured...only 1 field will do this, however, even this is not working.
Private Sub txtAddr1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtAddr1.Click, txtAddr2.Click, _
txtAddr3.Click, txtCity.Click, _
cmbState.Click, txtZip.Click, _
[code]....
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Feb 11, 2010
I had this code working to import one column in a table as a starter point, but now that i'm trying to import all the columns in the table, i'm running into problems.
When I run the app, I get this Microsoft . NET Framework error:
Syntax error in INSERT INTO statement
I've tried just about every combination I can think of for the sql statement and still the same error message.
Imports System.IO
Imports System.Data.OleDb
Public Class Update2
[Code]....
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Jun 22, 2010
is there a way i can get my datatable to have multiple constraints that are attached to a unique id? an example of what i'm talking about is if i have a unique machine but it's on many lines, can i show that somehow in a datatable? the reason i'm asking is that i have code that sorts the data by line number and shows the relevant machines in a combo box based on the line selection out of another combo box. i'm having to input the data into the datatable (as a starting point for the data base) and it's very tedious. i'm entering machines that have the same name in multiple rows because the line number is different. i can't figure out how i can add multliple values into my line number column so that it will sort properly when queried.an example of what i'm asking with regard to the datatable is as follows:
Machine LineNumber
slicer Line 1, Line 2, Line 4
conveyor belt Line 1, Line 6
So that when called to fill the combo box, the correct one is called.The code i'm using to sort right now is as follows:
Private Sub linecbo_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles linecbo.SelectedIndexChanged
Dim cline As String
[code]....
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Mar 1, 2012
how to search multiple fields in sql??im using 2 dropdown box for searching
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Mar 24, 2012
I have a Table:
[Code]...
I'm trying by LINQ-query (VB.NET) to return a count for distinct value of Objects, Stuffs and Colours for every Room:
[Code]...
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Apr 3, 2012
I am stumped. I have a DTO object with duplicates patient address data. I need to get only the unique addresses.
[Code]...
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Jul 14, 2011
I need to populate listbox datavaluefield with multiple field. The value will be coming to datatable - (dataset). I can't change the sql statement because it is under stored proc that uses globally lstSearchResult.DataSource = dt lstSearchResult.DataValueField = "EMP_ID" & "LNAME" &"ADD" ->> could it be possible lstSearchResult.DataTextField = "LNAME" lstSearchResult.DataBind()
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Aug 14, 2009
I have a form which is divided into two portions vertically. The first portion contains an listbox in which the user can add names of their family members, and the second portion contains editable fields for details the family members.
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Mar 20, 2012
VB.NET 2008 windows app form.I have a groupbox with several checkboxes, comboboxes, and textboxes within it.With the help of StackOverFlow members, I've learned how to use the FOR/NEXT loop to find all checkboxes that are checked.[code]As you can see by the code sb.tostring will print every checked checkbox name on its own line.How do I associate the proper combobox.selecteditem, textbox.value, and checkbox name to print out on the same line.When I say proper...example; checkbox=pen, combobox=color, textbox=quantity.Let's say my other checkboxes are different items and the rest of the boxes are the same.
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May 20, 2012
i am making a program send multiple fields to an email, however i am just testing it in a small file to get it to work, however i can't get it to send the email with say 4 text boxes ill post some of the code below and wil lbe greatful for any help.
[Code]...
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Jul 26, 2010
My LINQ query contains the following Group By statement:
Group p By Key = New With { _
.Latitude = p.Address.GeoLocations.FirstOrDefault(Function(g) New String() {"ADDRESS", "POINT"}.Contains(g.Granularity)).Latitude, _
.Longitude = p.Address.GeoLocations.FirstOrDefault(Function(g) New String() {"ADDRESS", "POINT"}.Contains(g.Granularity)).Longitude}
The query works, but here is the SQL that the clause above produces
SELECT [t6].[Latitude]
FROM (
SELECT TOP (1) [t5].[Latitude]
[Code]....
but this produced an error: "A group by expression can only contain non-constant scalars that are comparable by the server."
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May 25, 2011
I have 7 parallel arrays, and I would like to sort them all by two of them. That is I have the following arrays...
_weeknum()
[code]....
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May 11, 2011
I'm looking for a way to combine a field from multiple tables into a single field in a new table. Because the data populating the tables is coming from an outside source, I would prefer not to change the data in the original files. I have a separate table for each year because this is the way the data is provided. The field layout is not consistent from year to year, but each year there is a field that we'll call "score." I'd like to pull the field "score" from each year's table and have it populate a "score" column in a new table along with the year of the data so that all the years' scores are in the same place. Is there a way to do this using Visual Basic + Access?
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Jun 10, 2011
I have tested my code in order to pass single value to single parameter field in crystal report from VB.NET Form, it is ok but the problem is that I want to pass multiple values to only one parameter field called "Product Name" and it displays only one last record.
I want to display like this
Receipt : 0001 Product Name
pencil
pen
stamp
book
[Code]....
I already set parameter field "productname" for allowing to multiple values, but it is still the same.
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Mar 23, 2010
What I want, is Some text fields to input text, and one image path, then I want to print that, in a format like..
Centered Text
Centered Text
-------------------------------------
[=====IMG=====] Text text text text
[code]....
But from everything I've read though, I'm completely lost.
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Nov 24, 2009
I am trying to create a form which will be fed by an underlying database to create multiple form fields for each entry in an underlying database table. This is for a program to monitor patients under anesthesia, and prior to surgery, the doctor will choose which monitors they will be using. Then, on the actual monitor screen which will pop up every X minutes, there will be a text box and a check box for each chosen monitor. I am relatively new to VB, so I have tried to illustrate what I am needing but using the logic that I know from my previous life in PHP.
I am using DevExpress's layout control to place the form fields, so that is the code in the middle of the first loop (on_load), and I know that part works, I just need to know how to name the fields and then recover those fields and commit the values to the database. (the text boxes are added to the database, the check boxes are used to determine if an entry is made for that monitor- i.e. at the end of surgery if a monitor is turned off). I know that my syntax for naming the fields is no where close to correct, and it probably would not work in PHP, but I remember doing something like this in a PHP application I built long ago. [Code]
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