Read Rows Of A DatagridView Through For Loop?
Sep 10, 2011
My application is in VS2008 coded in Vb.net.I have a datagridview which is populated from Database.I have a save button on the same form that has DatagridView.My requirement is i want that all the records that are populated in DatagridView should be saved in a certain table of the database when the user clicks save.Im done with my save and Update code.What im not able to do is,im not able to increment the counter and move to the next row of datagridView when my For loop is executing after the click of Save button.Below is my Code.
For i As Integer = 0 To DGVStudRecord.RowCount - 1
My Code for Update and Save.
Next
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Nov 10, 2009
I have a dataview grid where I am loading data from a sproc. I now need to loop through all of the rows and make changes to some of the cells that are binded through the datasource
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Feb 11, 2011
I have datagridview1 which contains data and what I want to do is get the data from first selected row then carry out MyRoutine and then do the same for the next selected row until their is no data in:
RW.Cells(2).Value.ToString
RW.Cells(1).Value.ToString
This is what I have come up with so far: But I can't get it to move on to the next selected row once it does the first.
Private Sub Button13_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles Button13.Click
For Each RW As DataGridViewRow In DataGridView1.SelectedRows
'Send the first cell value into textbox2 and other cell value to textbox1'
End Sub
[Code] .....
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Feb 4, 2011
How to place text in textbox from multiple selected rows in datagridview with loop
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Sep 13, 2011
I have two datagridview's both are databound. First one shows items for sale and the second stores all the items that were sold. I am trying too transfer selected rows from one to the other but no matter what I keep getting told "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound."
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Jan 21, 2009
Is there a way to make a DataGridView's column a combo ONLY in the "new row", and a read only textbox in all other rows? I want the user to be able to make a selection from the combo box, and when the row is finished and the "new row" moves down one, I want the column to become a textbox containing the what the user selected. My grid will be bound to a table witch contains a "category" column, that is drawn from a seccond table that i want the combo box bound to.
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May 8, 2011
I am developing a program where i will download and save an xml file from a url as abc.xml. I open the abc.xml in a datagridview with a dataset without problem.I am confused how can i read raw per raw the datagridview and assign the data in a database table? i am using vb 2008 + msde2005 express.I show the whole content of the xml file in the datagridview with the following [code]I dont know how to create a loop where i can read the datagridview line by line save data in variables (ex.strings) and save it in a databese table?
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Jul 30, 2010
How would i delete only the successful inserted rows for insert and then move the non successful rows up and allow the user to correct the data and get it ready for an insert. If i dont delete the successful rows then i will have multiple inserts of the same dataRow and we dont want that! AND if i dont move the data up then it will have blank rows uptop and will end the try and not insert the corrected data. You can better see what logic i am trying to perform at the bottom of my code, right after I insert into the database. Here is my code.
Private Sub btnLaserGenerateTicket_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLaserGenerateTicket.Click
'Function declarations
[code]....
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Jul 30, 2010
How would i delete only the successful inserted rows for insert and then move the non successful rows up and allow the user to correct the data and get it ready for an insert. If i dont delete the successful rows then i will have multiple inserts of the same dataRow and we dont want that! :) AND if i dont move the data up then it will have blank rows uptop and will end the try and not insert the corrected data. Here is my code.
[Code]...
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Feb 7, 2012
'Invoice Form
Dim daInvoice As New OleDbDataAdapter()
Dim dsInvoice As New DataSet()
Dim MyDataTable As DataTable
[code]...
Error...
Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound.
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Sep 2, 2010
how to add Rows programmatically to the DataGridView's rows collection when the control is data-bound? here is my code but i got error as "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound? "
[Code]...
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Sep 1, 2011
Can anyone tell me why "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound." I keep getting an error "Invalid Operation Exception was Unhandled" error. All I am attempting to do is allow the user to select products from a list(or a second datagridview) and have it added to the datagridview so they do not have to type in every cell since the other cells are not visible because they do not purtain to their needs. Plus they will be able to save all items at the same time.
[Code]...
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Apr 26, 2012
It was even difficult coming up with a Question title for this.
Am not sure whether am using the right approach to my problem. See i have this datagridview that contains rows that i would like have saved back into the Database as new rows but with a column altered to a new value.
Eg
PKColumn1 FKColumn2
Column3 Column4
1 1
[Code].....
What am looking at is Change FKColumn2 (some foreign key, maybe i can also have a combo box somewhere on the form and an "import to") values to something like 2 and save the rows back to the database without loosing the original rows.
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Mar 22, 2010
how can i add rows in datagrid using for loop in compact edition.[code]
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Jan 9, 2009
IDE : VS 2008,Platform : .NET 3.5,Here is my DataTable columns :ID Note DetailI want to write sth like this :
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Feb 21, 2011
I'm trying to set the same value for all rows for a single column in a datatable without using for loop. Any faster methods to achieve the same.
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Apr 16, 2011
I have been looking for some syntax online to help me do this, but i cannot seem to find anything. I am trying to move some rows from a table in an access database to another on a click event handler.
One of the tables names is "Basket", and the other is order.So far i have this.
[Code]...
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Nov 17, 2011
i want to read table row by row i have table with two columns but i want to read the first column only row by row her's my code
Dim col As String = "SELECT users.user1,users.valueid FROM users"
Dim cmd As New OleDbDataAdapter(col, CON)
Dim ds As New DataSet
[Code].....
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Aug 24, 2009
Below is my export to csv from listview using vb.net
Function ExportListview2CSV(ByVal lstview As ListView) As Boolean
Dim saveFileDialog1 As New SaveFileDialog()
Dim csvFileContents As New System.Text.StringBuilder
[Code]....
i want to exclude the records from the 1st and last rows where should i make chages in above code
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Jul 26, 2010
My Application uses For...Next loops to read a spreadsheet into a DataSet and then display information from it based on the results of search conditions (search term and a date range).I'm having a problem with the data where, if I run a search that should return the first 400 rows in the spreadsheet, I'm only getting around 200 results. I know the search should return the 400 rows because I checked it in the spreadsheet before running the search.I think my problem might be caused by my date comparisons. I think the problem might be that I'm comparing String valueHere's my code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If ListBox1.Items.Count <> 0 Then : ListBox1.Items.Clear() : End If
[code].....
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Apr 1, 2009
how to loop through DGV selected rows collection?
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Mar 4, 2009
Here is my DataTable columns :
ID Note Detail
I want to write sth like this :
//below code block is not the right syntaxFor each q in dtDataTable.Column("Detail)
strDetail = Row of Column Detail
Next
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Sep 21, 2009
I have a datagrid with a list of subscriptions in. Is it possible to loop through the rows in the DG, check the date of expiry (cell 5) and highlight it in red or whatever if its "expired"?
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Jul 30, 2009
I have several problems with rows in a DataGridView. Background information: The DataGridView (DataGridViewCalib) is in one TabPage of a TabControl, some columns of the DataGridView are automatically DataGridViewCheckBoxColumn as the DataSource have some colums which are Boolean. This is a Windows Form written in VB.Net with Visual Studio 2008. The user loads an input data file.
The problems:
1) At first arrival in the TabPage, ShowDataGridViewCalib (code below) is called. All rows are then shown in the DataGridView, despite the code saying that some rows should not be visible. Breakpoints in the code show that the code do arrive at the Rows.Visible = False events. Despite all rows beeing shown a Watch in the debugger shows that:
[code]...
There are two alternative ways of handling the rows in the code. The first attempt (commented away here) is probably the "nicest".
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Nov 10, 2008
I'm trying to loop through all rows, and see if any match what is in the textbox. Would this work?
Code:
Dim dr As Data.DataRow
For Each dr In myQuery.GetMembers()
If UsernameTextBox.Text = dr.Item("mail") Then
[code]....
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Nov 2, 2011
I'm writing a program for Employees Management and i need to automatically generate a Payroll for each one then calculate some things and save it to another table.
I know how to calculate and save. I just need to get all the ID column of all rows in my Employees table, and select each Employee ID one by one in order to calculate each payroll automatically.
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Jul 10, 2010
In VB.NET 2008 I've two forms 1 & 2 containing two datagridviews connected to two data source 'ACCESS 2007 tables' Now I want to select multiple rows from one datagridview (form1) & transferring these to another empty datagridview (form2) with a button_click.
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Mar 13, 2011
I have 2 forms, each one with a datagridview.I want to transfer all the DataGridView Rows from From2 to another DataGridView of Form1. but it's not possible.
[Code]...
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Dec 12, 2011
How can I write a loop to run for each day in the current month and then check to see if the Dataset has a record that matches one of those days and take an action?
For Day As Integer = 1 To DaysInTheMonth
For Each row In MyRows
If row.Date.Day = Day Then[code]....
This generates too many rows in the table I have it building. Basically, every day gets as many rows as there are that contain data.I'm building a HTML table that gets mapped into a chart using jquery so I need a for everyday of the month.
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May 19, 2010
I am almost there but for some reason I don't find the answer to my issue. Here it goes. In my application I have a form which displays a data grid view with some info I get through XML from a web server. The data grid view have as first column a Check Box colum. The second column have the information I get into a variable (from cells), one by one, to pass it to the sub with the XML command.
What I want to do is to be able to select all the rows and send the cell info of the second row (only for the selected rows) to my sub which will execute once then send the second cell info and execute the sub and so on until all the loop is complete. Currently my code works only if I delete one row at a time (sending the XML code will delete the info in the web server and update the datagridview which in return will remove the item).
[Code]...
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