We are writing a program that pulls a Teacher from a database, then you select the "period" 1 - 7. What is happening is if we pick period 1 on teacher john doe. Then when you pick another teacher it doesn't clear the period that we selected before. How do we clear this information every time we select a different teacher?
View 2 RepliesI've created a Gridview control that pulls some data from my database, but doesn't display all of the information I'm hoping it gathers. I choose not to display the primary key for user interface purposes, but require that key for basic operations on the grid.I'm currently attempting to add a "Delete" option to the table, but unfortunately I'm having very little luck. Here's my .aspx file.
<asp:GridView ID="ManagerList_GV" runat="server"
AutoGenerateColumns="False" AllowSorting="True"
DataKeyNames = "ManagerID" OnRowEditing="editManager"
[code].....
I currently have an unlimited amount of columns and rows in a DataGrid. Pendinginformation from a user I would like to display every row from the datagrid into a checkedListBox but I only want to show specific columns depending on their column Names. Currently my code will display every row. My problem is getting only the selected columns depending on the name of their header.
The code that I have currently is:
For Each row As DataGridViewRow In CSVInput.DataGrid1.Rows
If Not row.IsNewRow Then
[code]....
I'm trying to learn a little about pulling information from other applications and finding it pretty difficult to find what it is I need to do. Let me give you an example of what I'm trying to do and perhaps someone can point me in the direction I need to work in.
I want to read Ventrilo from my VB application, specifically I want to know when someone is talking in the channel I am in. That is my end goal. I can pull the handle using FindWindow
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" _
(ByVal lpClassName As String, _
ByVal lpWindowName As String) As Long
[code]....
Im just pulling information from SQL and populating textboxes etc.My question is firstly i have an issue because i can figure out how to do it, and secondly is there an easier way of writing this.So my Issue, i wrote a function to connect to SQL and pull information back which is fine it fills DS(Dataset) and then i want to be able to assign the relevant information within the DS to the desired textboxes,
[Code]...
First time actually doing anything with xml so I've been trying to follow some examples but im not getting anywhere with them, can you show me where im going wrong?First off Im pulling an xml file from the web as a string and then loading that into an xml document, heres an example of one:
HTML
<?xml version="1.0" encoding="UTF-8"?><blackoutrugby_api_response brt_timestamp="1279072295" brt_sql="2010-07-14 13:51:35" brt_iso_8601="2010-07-14T13:51:35+12:00" season="9" round="7" day="3" ><team id="44328"><id>44328</id><name>Beltra RFC</name><country_iso>IE</country_iso><region>225</region><stadium>Satory Stadium</stadium><bot>0</bot><nickname_1>The Lakers</nickname_1>
[code]....
I have a PHP Page that displays airport information in a list in the following order
[code...]
Using that delimited method of ";" then a break, how can i put all of those into a combo box. There are a few hundred.
I am having a function which populates a combobox (cmbProjtype) as shown below,
I am trying to clear cmbProjtype before I populate again to remove duplicates whenever the function is called, but the line of code added (highlighted) is not doing it.[code]....
If for textbox it is textbox1.clear, etc.What is the equivalent for combobox to clear the value.
View 1 RepliesI need to know how to clear what is currently in the combo box with a 'Clear' button. Basically, I have a combo box with a list of destinations for the user to choose from. Say the user selects Australia, when I click a clear button, I need this selection to disappear, and be ready for the next user to select a destination.
View 2 RepliesI have a combo box that I have set with different names. This is not connected to a database. I simply want to clear the combo box for the user to input the next customers information. I am using a button to do this and my button name is btnclear.
View 2 RepliesAfter I have entered data into 12 textboxes and pressed a button to execute the code, the data from the text boxes goes into a database.I want to clear the information in the text boxes after the button has been clicked, at the moment I have 12 lines of code which are similar to this.
MsgBox("Data Has been Added to The Database")
tbeventId.Clear()
tbtitle.Clear()
tbstartdate.Clear()
tbvenue.Clear()
is there a easier/simpler way to remove all data from the text boxes without using 13lines of code
I have a form that has several fields that needs to be filled in by the user. Once the user clicks on submit. What I want is to make all the information to clear after the user clicks on submit.
View 4 Repliesdatabase name = DataTable
Pulling data from Access database in .net?
I was wondering which way would be the easiest in VS2005 to connect to and pull data from a MS SQL database. I have already setup the database connection by choosing the datasource for a DataGridView but I'm not able to retreive any information.
The steps I have taken so far:
1. Make new form
2. Drag and drop DataGridView onto the form
3. Setup the data source and respective username password
Not sure where to go from here....
I've been trying to display some information from an Oracle Database(10G) in a VB.NET program. Some of this information is in french and I need to display the french accents correctly. The e with an accent chr(233) is my test case, and it keeps coming back as either an inverted question mark (with Ole DB), a question mark (with the System.Data.OracleClient) or an 'i' (with ODBC and DSN)..
View 2 RepliesThe code for this is:
'IMAGE HANDLING
Dim bytes() As Byte = DS.Tables("Location").Rows(0).Item(4)
Dim ProductImage As Image = Image.FromStream(New System.IO.MemoryStream(bytes))
pic_ProductImageDisplay.Image = ProductImage
pic_ProductImageDisplay.Load()
The error occurs line 3 stating "ArgumentException was unhandled: Parameter is not valid."
I want to have a combo box with a list of names. When one of the names is selected, I want the phone number and email to be displayed below it in a text box (or something similar).
View 6 RepliesIm connecting to SQL and pulling back one table that has one column. im then trying to loop through the information and add it to a combo box,this is my code.
PasswordSafe = Table Name
Account = Column name
Dim BuildDrpDwn As New GlobalFunction
Dim dr As DataRow
'Clearing the Dss for any unwanted bits.
[Code]...
The program is currently trying to pull information from three different database tables and compiling the information onto one screen, to do this i am using three different connections and a function to handle the data at each stage. The issue is as my code hits PageLoadStage of "2" and runs the QueryDatabase() Function i am encountering an error of: "OleDB exception unhandled: No value given for one or more of the required parameters." This occurs on line 15 of the first code snippet. Can anyone explain this and/or identify any code issues if that is the cause.
[Code]...
i have recently installed Visual Studio 2010 Professional and I am currently coding in VB. I am trying to display a bar graph (pulling from MS SQL database) for certain criteria, but I do not have a "Chart" option in my Toolbox section. I have a licensed software and do not know why the "Chart" option is not present.
View 11 RepliesI am trying to right the information from a combobox into a text file so it can be saved. If the information in the combobox is John, Marry, Jack I would like it to appear in the text file like this:[code]
View 3 RepliesI generate a print preview, the only thing is, if there is enough data to fill like 2-3 pages I don't know how to generate a new page. It only fills the first page and that's it....
Private Doc As New PrintDocument()
Private Sub btnPrint_Click(sender As System.Object, e As System.EventArgs) Handles btnPrint.Click[code].....
most of the code it's just pulling data from database and printing necessary charges to the invoice, but if the invoice is more than 1 page then I don't know what to do because it only generates 1 page.
I'll start off with a brief explanation of my situation. I'm doing my A-Level coursework project at the moment and am having some difficulty trying to figure something out. My project is a VB.NET Program that connects to a Database to display/add/delete/update records. At the moment I am having trouble with one particular thing which must be solved before I can move on (and the deadline is fast approaching).
I have a combo box which contains a list of different item types (Which match up to the item types used in the database, but it is not filled from the database). When the user selects one of these options, the list box below must fill with all items of that type that are in the database.
Unfortunately I'm at home so I can't get access to my coding, but I can try to explain what I've tried. I've tried so many things after trawling though what seems like endless amounts of tutorials to find an answer.
One thing that is used in pretty much all of them is the SQL string to select the needed records;
"SELECT ItemName FROM Stock WHERE ItemType = Anime"
Now, this has been used many different ways. I think the way that I'm trying at the moment is to create a new data set that contains the records that are needed for the search. There is already a data set that contains the whole table that is needed for this particular form. I think my most recent attempt was trying to copy the relevant information from the original data set to the new one, but I can't get any coding that isn't incorrect.
I've been trying to get something done In a form i got 1 combobox and 7 textboxes and 1 ritch textbox. now the thing is trying to save it to a document like Mats.txt the thing is I want it to look something like this
Combobox Information on line 1
Texbox1 line 2
textbox2 line 3
[Code].....
It has to basically save to file all the text and numerical values. Then for the last line AUTO generate the text.
I am still having issues with the combo box. I have the correct query. I have four tables in MS Access. I need to create a form in Visual Basic that has a combo box and a datagrid. The selection from the combo box will display all relevant information about that person on the datagrid. For example, if I select John Doe (from the combo box) the datagrid should display: [Code] How do I add John Doe to the combo box and link this query to it, when upon being selected, it displays the result in the datagrid?
View 1 RepliesI'm trying to learn how to write a data layer class to read in information and populate combo boxes, etc.
View 1 Repliesi'm trying to come up with some code that can clear a database.
I've tried to loop the "delete" code that i have, tought each row in that database, but i get error at last row saying somethink like "row do not exist" and when i got back and look, there is still one record left in the database. Here is the code i used.
con.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source =" & Application.StartupPath & "\Filmer.mdb"
con.Open()
[Code].....
I have a sql database and am using VB express 2008 in WPF and I want to know, how do I clear every record from a table in a dataset?
View 12 RepliesI have connected a form to my database, which displays info when the form loads, butttt it displays them from load, which is not what I need, can someone tell me how to clear the form upon load so that none of the textbox fierlds have data within them? Untill I request them to.
View 4 Replies