Normally when I want to create a new row I first do a select statement and populate a dataset. Is there a way to assign the schema of a table to a dataset so I can still add a new row or do I have to select the data first?
View 4 RepliesI want to be able to select any control on the vb form at runtime. These controls will be added to theform on a click of a button. So essentially I want to dynamically be able to add and then select these controls at runtime. I would also like to make these controls dragable on the form.
View 1 RepliesI am attempting to have my program select a file, create DataTables and then perform some other functions. I want to be able to open another file and re-do the same steps.The problem I am having is that I add columns to my Datatables and when I try and to open another file while one is already open I get a message that a column of xyz is already added how do I properly "clear my datatable" or perhaps that isnt even the correct approach? Here is the code I have that Opens a File
HTML
Private Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenToolStripMenuItem.Click
[code]....
This was working at one time but after adding to my project I must have placed something in the wrong place inadvertantly or it has soemthing to do with adding columns,?
i have installed visual studio 2005 in my computer i want to create a sql server 2005 file i saw a sql server 2005 option in my installed components i want to know how to create a sql server 2005 from my visual studio 2005 it is possible or not.
View 1 RepliesI have a datagridview control on a form that I'm trying to select programmatically. My problem is, it's selecting the row in the grid when I use
Datagridview1.rows(Index).selected = True
However there is a margin on the left side of the datagrid that only get's the focus (or the little triangle identifier) when I click the row with my mouse. How I can have this row fully selected using code. When I try to run another function of my form it's crashing because the datagridview is not fully selected.
how to select 1st and 5th row in datagridview
View 8 RepliesI have a problem with the source code. I am trying to select at the end of the textbox after I have input the text in the textbox, but it have selected at the start of the textbox. Do you know which property of the textbox that i should use?
Private Sub MyEventRoutine(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
TextBox1.Text += ":)"
[Code].....
I use following codes to select data in ListView1, given value in textbox1.text. That codes work fine.Textbox1 data is integer and DataGridView1 first Column Value is Integer. I want to locate this value in Grid.My question is how to select data in DataGridVeiw, given data in textbox1.
Dim itmX As ListViewItem = ListView1.FindItemWithText(TextBox1.Text, False, 0)
If Not itmX Is Nothing Then
itmX.Selected = True
[code]....
VB.NET:i want to select data from sql server 2005 DB table and displaying into text box that depends on combo box selection using VB.NET
View 4 RepliesPrivate Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
[Code]....
I have even write the code to select the first node,i want first row should be blue(Selected). But its not coming to be blue?
<ItemList
<item>
<ItemID>175290334</Itemno>
<ItemTitle>iPod 16GB</
<location>London</location>
[code]....
For every Item there is an arbitrary number of paymentMethod nodes, at least one, possibly several.How do I select all paymentMethod nodes within a given item into an XmlNodeSet? Presumably using the selectnodes method, but with what argument?
Dim Payment_nodes As XmlNodeList = current_item("Item").SelectNodes(????)
I am trying to move a row in a datagridview and then select that row in case they want to move it up or down again. I have the code to move the row and then select the row here:
[Code]...
I think I have read somewhere that delegates could be used in place of Select Case but I cannot find anymore that article. Could anyone confirm and provide some sample if this is true?I've only used delegates in threading and I have been heavily using Select Case and thought I could try using delegates instead.
View 3 RepliesI am using the following code to get all my database fields, I would like to convert one of the fields to Cdbl, not sure how to do that
Dim comm As New OleDb.OleDbCommand("Select * From " & Me.OpenFileDialog1.SafeFileName & " Where Status <> 'S'", con)
I know how to individually do it field by field but i dont want to have to write a select for each field if that makes sense?
Dim comm2 As New OleDbCommand("Select Cdbl([Selling Price]) as SoldPrice, Status From " & Me.OpenFileDialog1.SafeFileName & " Where Status = 'S'", con)
So something that pulls ALL fields and converts one
I'd like to know how you can actually select(highlight) a program from a list of programs displayed in a list box in Windows Form. I've done research and most results end up with openFileDialog condition or have to manually type the directory path. But what I have currently is the display of a list of programs in a list box(like Add/Remove Programs) but I'd like to have the user launch it upon double-clicking or clicking on a button(after a program is highlighted).
In short, it's like selecting a program in Add/Remove Program but instead of the Uninstall button, I want it to be a Launch button. I believe I already have the executable path behind the codes with the registry so I just need to know how you can select, and launch.
(Below contains an example of the kind of code I'm having)
Public Partial Class MainForm
Public Sub New()
' The Me.InitializeComponent call is required for Windows Forms designer support.
Me.InitializeComponent()
[Code]....
I am trying to Select data based on two where, but I am not writing the statement correctly can anyone see where I am going wrong? [code]
View 13 RepliesI have a question regarding a null value which I am not supposed to get in VB. Here is my code. My problem is that I don't know why when I select Bryan in the list box, I get a statement like this: "Bryan's favorite color is _________ empty(null value).
Here is my
Public Class SelectDemo
Private Sub lstData_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lstData.SelectedIndexChanged
'Declare variables
[code]....
i have a datatable that contains numerous postcodes in the following format[code].....
there is always a space before the last 3 characters now i need to filter the datatable against a list of excluded postcode areas..these are the following format:-
BT1
BT2
BT4
BT40
so its either 2 letters & 1 number or 2 letters & 2 numbers, no 2nd part to the post code..i have a little function which builds the string, and then removes the rows from the dataset like so (ive pasted in an example postcode string)....[code]....
which obviously brings out no records as they all have full postcodes the issue is, i need to be comparing only the first half of postcode BTxx bit but cannot use a % wildcard, as this then would bring out BT40's when i only want, in this example, BT2 & BT4's..so is there a way to make it compare against the first half of the postcode?
I would like to know how i can programmatically select a row of a DataGridView that contains a specific value in the first cell of that row.E.g, I want to click a button that selects the row of my DataGridView where the first cells of that row contains the number 3.
View 5 Repliesi need to do quick selection and adding of large list in listview vb.net 2005, say 100,000. most people have suggested virtualmode, but i will be removing and adding items in these at different times. i thought of using api, as it is somtime faster,
View 8 RepliesVB.NET:i want to select data from sql server 2005 DB table and displaying into text box that depends on combo box selection using VB.NET
View 1 RepliesMy tables sectionName column has an existing value. I want to update its Adviser column but my select count always evaluate to false. I want to check if my table's SectionName column record matches the selected value of my CboSectionName. if there is a match then i'll check if such section has an adviser already. If there is an adviser already, then ask the user if he/she wants to change the adviser of that section. If he/she wants to change/update the adviser then update it else exit. however, if there is no adviser yet then assign an adviser to column adviser from cboAdviser. If no record yet in table's SectionName column then prompt the user that there is no section name yet, then exit. I have been debugging the code below for hours now but I can seem to locate why my sql count always resulted to false. [Code]
View 11 Replieshow to select only records from Excel that meet a certain criteria? For example, this works:
Dim daExcelData As New OleDbDataAdapter
Dim cnExcelData As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & txtInputFileAcc.Text & ";Extended Properties=Excel 8.0;")
cnExcelData.Open()
[code]....
I am a student working on a project for my company. I work using Microsoft Visual Studio 2005. Language is vb.net. I also work using windows application.
I have a form(EmailContacts.vb) which contains a datagridview and a button(btnAdd) to add the data to a textbox of another form. My datagridview consist of 3 columns; CustName, Email and Selection. Selection column being the column with all the checkboxes. Everything is working fine and i can display data from the database on the datagridview properly.
The problem is how do i add a 'Select All' feature such that when the user clicked once on the 'Select All' checkbox, all the checkboxes in the 'Selection' column are selected?
These are my codes for the form:-
[Code]....
I have created a DataSet.Within the dataset I have 2 DataTables.I have created a DataSet.Relations between the two tables.Now, using DataSet.DataTables.Select.... Would it be possible to perform a search similar to this in SQL?
SELECT * FROM DataTable1
INNER JOIN DataTable2
ON DataTable1.KeyColumn= DataTable2.KeyColumn
[code].....
I'm trying to select all the work's accidents between two dates, but my datatype in sql server 2000 is varchar instead datetime.
For example when i want the fields from 01/01/2010 to 01/10/2010 it shows me all the values from 01 to 10 but from other year and month. I know the easy way to do it is changing my datatype into the database but when i do it the value saved into the table is 01/01/1900.
I've got a DateTimePicker control on my form. The normal behavior is for it to allow the user to "move" between value fields with the arrow keys and remember the last date part that was highlighted when the control loses focus. Then, when the control gets focus again, that date part is highlighted. We all know this, I'm sure.What I want to know is how to access the control's selection properties/methods in order to have my DateTimePicker control always highlight the month portion when a user enters the control, regardless of what the last date part highlighted was.
View 18 RepliesI can't find what I'm doing wrong. When I execute this code,
Dim dr As DataRowView = DirectCast(Me.LOTBindingSource.Current, DataRowView)
'Format variety Text
Dim drV As DataRow()
[code]....
i did this Dim strUser As String = txtacno.Text cmd1 = New OleDbCommand("Select * from BookDetails Where AccountNo =@acno and MemberId=@memid", con)
[Code]...
the select query that i used in the above code,i have use and in it;so is this a valid sql statement?
I have a TreeView populated with some nodes, and some of those nodes have children. Is it possible that when the node, or child is selected that the entire node including the children be selected? I still want to deal only with the value of the root node, but for the UI I want the root + children to be selected.
View 5 Replies