Writing To Specific Cell Located In DataTable From DataSet?
Aug 14, 2011
I'm trying to write to a specific cell located in the datatable, which is from dataset. I know that it would be datagridview1.rows(xx).columns(xx).value=(""). But how to do it in a datatable
Public Class Form1
Dim ds As New DataSet1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim TestValue As String = "test value"
[Code] .....
The following code above does write to column 3 row 1, but if you say .rows(1), i get "there is no row at position 1". So, in summary if I have 7 columns, and I created a second row I want to write to column 3 and the 2nd row.
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May 26, 2009
If you know the cell number that you need to write to in excel, say E3 what would you use for the VB2005 code? I can't seem to find an example on this!
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Sep 27, 2011
Dim ds As New DataSet
Dim xmlfile As XDocument = XDocument.Load("devices.xml")
Dim reader As XmlReader = xmlfile.CreateReader
[code].....
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Aug 28, 2009
I'm just startet to work with datasets, I have configurated an SQL server 2008 to host my databases. the server works fine also over the internet. I am making some SQL test applications, to learn how to use SQL and datagridview.my problem is how can i select a specific cell in my dataset and datagridview. When i know the name of the column and the row that holds the specific cell that i want to select by click on a button
my datagrid look like this
name | price | color | company | left
______________________________
[code]......
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Feb 16, 2010
I am attempting to discover how I can populate a ComboBox with the data values already located in a data source that has been added to my project. I know how to use the ComboBox.Add method. I also know how to add individual value items contained in a manually entered array at design time using the For Each Next loop. However, I am unable to populate a ComboBox with all values for a field of a table in a data source that has been added to my project. I assume that I am unaware of some simple referencing step that will solve this problem.
[Code]...
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Mar 15, 2010
When the user clicks an "Edit" button on my form, I want a box to come up which allows the user to edit a DataTable in a strongly-typed DataSet. What's the best way to do this?
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Jan 28, 2010
I have code running in the Datatable.ColumnChanging event in my dataset. This dataset underlies a form and conventional drag/drop controls are in place for data entry.when the event triggers and runs, I am running code in the form that checks the dataset.HasChanges property. It is showing False. But this is immediately after the ColumnChanging event has been triggered.Okay, I see by others posts and MSDN that .HasChanges will only be true after moving off the row with the changed column. I have also noted lots of discussion about the advanced binding property of DataSourceUpdate Mode, but that does not address this issue.I guess I can do this by checking the state of the row for the binding source. Just seems odd that the event behind the dataset can be triggered and that does not change the dataset.HasChanges property.
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Apr 1, 2012
I have default.aspx used masterpage, in master page i have a control called DefaultMenuContent, this control have a dropdownlist with autopostback, the problem is loosing the selection even if i use Is Not PostBack in control's load event, how to persist the dropdownlist selection?
In Master:
<asp:ContentPlaceHolder ID="MenuContentPlaceHolder" runat="server">
<art:DefaultArabicMenu ID="DefaultMenuContent" runat="server" />
</asp:ContentPlaceHolder>
[code]....
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Oct 31, 2010
how to copy data from datatable to table in dataset i ry this but its readonly property
ds.datatable1=newdt.copy
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Nov 7, 2009
I am having problem setting focus on specific cell in my Datagridview1 . On Form1 when clicking on cell 3 in any row, I am callig a Dialog1. However, when done working with it, and closing the Dialog1, the focus returns to cell 3 in my Datagridview1 . I like to set the focus on the next cell(4) making it the current cell.
I have tryed :
DataGridView1.SelectionMode = DataGridViewSelectionMode.CellSelect
DataGridView1.CurrentCell = DataGridView1.Item(4, e.RowIndex)
DataGridView1.CurrentCell = DataGridView1.CurrentRow.Cells(4)
And few other things, I am always getting this exception: Operation is not valid because it results in a reentrant call to the SetCurrentCellAddressCore function.
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Oct 8, 2009
im having trouble opening adobe from my coding, also is my file ok or do i need to call from its folder location within the program.i need to be able to open a specific .pdf file from a whole range of file located in the program.what im getting the user to do is press 1 of about 14 buttons to select a brand. then in textbox1,enter the first part of the file name so in this case a274 (adobe runs in .pdf format so the file would be a274.pdf).at the moment i get a win32 error high lighting startinfo as the problem so im thinking its the adobe.exe is the problem. [code]
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Jan 16, 2011
why this does not output any data to the xml file?
'this displays all records
Me.SQLString = New OleDbCommand("SELECT * FROM FlightDetails", DBConnection) ' WHERE FlightDetails.ReportNumber=BeforePushback.ReportNumber", DBConnection)
'establish data adapter/data table
[code]....
There is no exception or error thrown, the debugger just skips over it.The FlightDetailsTable contains data as it is bound to text boxes on my form. I just don't know why the data is not written as xml to the file.The file created contains this line '<?xml version="1.0" standalone="yes"?>' and that is all.
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Jan 30, 2010
I'm trying to export a list of properties received from an API call out to an excel workbook. I'm quite inexperienced in the area but I'm trying to have the properties written relative to the cell (i) in the for loop.The code is this at the moment:
vb.net
Public Sub BHorse_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BHorse.Click
[code].....
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Nov 8, 2010
I've made a function to convert a number and fraction string eg. "22 7/8" to decimal. I've no problem pulling the data from the current row cell to pass through the function. Checked it via a temp textbox i put on the form. What i actuall want to do is pass it back to another cell on the current row. Tried a few things but having no luck. Here's the code of what works. The name of the cell i'm trying to pass the result back to is called "BaseDec".
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim fact As String
[Code].....
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Sep 9, 2009
i have line like this
46N93 P594 40898, 35899 39MIL;
PHY2_P2_CONFIG0 P2767 34205, 33537 39MIL;
18N879 P141 120461, 49324 39MIL;
PMC3_270_ETH1_D0+ P3021 8061, 44624 50MIL;
[code]....
but before that i must check the MIL value. If it is 39MIL i should write T5 first followed by the value from all 39MIL than if have 50MIL it should write T10 followed by all the value from 50MIL my output file will be like this
T5
40898 35899
34205 33537
120461 49324
[code]....
I try this code to split
Dim tfLines() As String = System.IO.File.ReadAllLines("C:file.txt")
Dim sf As New System.IO.StreamWriter(drill, True)
For I As Integer = 0 To tfLines.Length - 1
[code]....
But i can not get the exect value that i want?
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May 28, 2009
i have a xml file thats looks like this:
<Item xmlns="Element1">
<SubItem>item1</subitem>
<SubItem>item2</subitem>
<SubItem>item3</subitem>
<SubItem>item4</subitem>
</Item>
[Code]...
And then i want to add 1 SubItem for every item in my listbox to one specific element without touching the other code. I already have the code for saving listview items to xml.
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Sep 13, 2010
I have created a simple project where I have two forms, one a data entry form where a client name, address, city, state and zip are entered into textboxes. Then, the user clicks a button to add all this data to the datatable via a newrow. The second form includes a datagridview to show the datatable. However, I cannot get the code below to work to update the datatable. I have a button to click to check to see if the data is entered and it returns an error that no row exists.
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Sep 12, 2009
GND P3559 9812, 7993 p9910.26;
GND P3559 9812, 7993 p9910.26;
46N93 P594 40898, 35899 39MIL;
PHY2_P2_CONFIG0 P2767 34205, 33537 39MIL;
18N879 P141 120461, 49324 39MIL;
PMC3_270_ETH1_D0+ P3021 8061, 44624 39MIL;
I have lines like above in my text file. I have write all this value in another text file by adding the title. In my original file's line I must check whether the line contain any MIL value if not, I must write first T1 the below T1 I must write all the line which not contain MIL value until I reach a line which Contain MIL value. If the line contain 39MIL the I must write first T5 then followed by all the line which contain 39MIL until it reach the line which contain another MIL value. Let say 50MIL. the I must write T7 then followed by all the line which contain 50MIL. I sort my original file already. so the original file will start from the line which dont have MIL to 39MIL,50MIL,75MIL and 100MIL.
My output file will look like this:
T1
GND P3559 9812, 7993 p9910.26;
TERM_RX3_2- P3347 41621, 2965 j22.49 50MIL;
58N895 P169 62611, 96124 50MIL;
ITP_TMS P200 67411, 49624 50MIL;
63N674 P175 20911, 34124 50MIL; .....
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Sep 11, 2009
GND P3559 9812, 7993 p9910.26;
GND P3559 9812, 7993 p9910.26;
46N93 P594 40898, 35899 39MIL;
PHY2_P2_CONFIG0 P2767 34205, 33537 39MIL;
[Code]...
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May 10, 2011
I am trying to write data back to my database in my project, but it keeps disappering when I make any changes to code. I can build the project, add data, close the project and build it again and the data is still there. But as soon as I make any changes to anything, on the next build, all of the data is gone.
The table will not be bound to any controls in the final project, but for testing purposes I have a datagrid control that it is bound to. My code started as follows:
[Code]...
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Apr 26, 2011
Public Class Form1
Dim ds As New DataSet
Dim xd As XDocument
Dim Qual1, Qual2 As String
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code] .....
How do I make it so when I click the button it saves to the selected element that is selected in cb
My question is my code for populating employee information based on the name selected in the combobox cb works, However I need to be able to write QUAL1 and QUAL2 to the employees whose name is in the combo box.
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Aug 5, 2009
I dont know why its giving me an error when i run this code...
Code:
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook
[code]......
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Feb 24, 2010
My code is crap, so I don't really think it will be useful because I've been going about it differently than I really want to:[code].....
I really don't wanna be loading a file in, I just wanna use XMLDocument() to create a file from my DataTable.But, my file ain't coming out right and I'm sorta just lost as to how this is all supposed to fit together.
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Aug 3, 2011
ok i have a comma delimited text file with two fileds. I am loading the first field which is strings into a checked list box based on a open file dialog prompt. now when the user clicks a button i want it to be able to increment the second field(which isintegers)of the corresponding string field index by one and save the file. i am very confused on how to even start this.
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May 6, 2010
I am making a vb.net app and I need to know how to overight onto a specific line in a text file. For example:[code]Now, I want to completely overight the "B" to an "A" and the line I need to write on is "2" also, my application will produce dynamic text files as well so I wont always be able to know what line exactly to overight. So my question is, how do I write to a line when I know what line it is and how do I search for a specific line and overight that.
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Aug 4, 2010
I'm trying to insert a new line in a cell of my datatable. When I hover the cell it shows it like it should. Everything has a new line.[code]
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Sep 9, 2009
I want to add a label in a specific cell in my table, but everything goes wrong when I do so.
I make a label and put it in column 2 row 0: table.Controls.Add(UI.createLabel("test", 9, "sans serif", "bold"), 2, 0)
That goes fine..... label "test" goes exactly where it supposed to go. But when I put it in column 2 row 1, this happens: table.Controls.Add(UI.createLabel("test", 9, "sans serif", "bold"), 2, 1)
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Jun 14, 2010
I have a bound data grid view that is linked to a table in my Access Database.
I want to make data entry easy for the user and also error free by limiting what they can put in each cell. How can I make specific columns in my DGV have a dropdown button and add a range to it?
I know how to do it manually:
Dim NewCol As New DataGridViewComboBoxColumn
NewCol.HeaderText = "Title for Column"
NewCol.Items.AddRange("one", "two", "three")
DataGridView1.columns.add(NewCol)
But I don't want to do add each column manually...
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Jul 6, 2011
i want to know the value in the specific cell,let say there has 3 columns and 3 rows,i want to know the first column and second row cell value in datagridview that bind to a database,can? i want to use that value to to something.(*the cell is not the selected one)
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May 6, 2012
I have code that downloads a webpage into an .html or a .txt file so I have the webpage source code, how do I:Search the HTML source code in the file for a keyword anchor point (Hair Color, it's unique in the entire webpage source code)Step down 3 linesAssign what ever is on that line to a variable called FoundIt?
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