DataGridView - Splitting Rows Into Two Groups
Feb 13, 2009I am using datagridview I want to split the some rows into two groups?
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VS 2010 Break Down A DataTable Into Groups Of Rows Ones With Same Traits Under Column?
May 3, 2012I have a Datatable with one column of the table being 'PartNum(product part number)'. I used EntriesTable.DefaultView.Sort = "PartNum ASC" to sort the whole Table, with respect to the information in this column. Now I'm just trying to further sort the table by grouping rows that have same info under that column together and do something to each of such groups. but I'm kinda stuck here.
I'm thinking of creating some sub-DataTables out of the original one and have these sub-tables to hold those rows with same info under "PartNum". Does anyone have ideas how to do that? maybe with DataReader or DataView ,
VS 2010 - Datagridview - Rows Cannot Be Programmatically Added To DataGridView's Rows Collection When Control Is Data-bound
Sep 13, 2011I 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."
View 2 RepliesVS 2008 (DataGridView) :: Delete Successful Inserts Of Rows And Move Rows Up?
Jul 30, 2010How 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]....
.net (DataGridView) - Delete Successful Inserts Of Rows And Move Rows Up?
Jul 30, 2010How 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]...
Error - Rows Cannot Be Programmatically Added To The DataGridView's Rows
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.
Rows Cannot Be Programmatically Added To The DataGridView's Rows Collection
Sep 2, 2010how 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]...
VS 2010 - "Rows Cannot Be Programmatically Added To The DataGridView's Rows Collection When The Control Is Data-bound"
Sep 1, 2011Can 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.
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Save Datagridview Rows As New Rows?
Apr 26, 2012It 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.
DataGridView - Nonvisible Rows Are Still Visible And The DataGridView Is Empty Despite Having A DataSource
Jul 30, 2009I 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".
Multiple Rows Selection From One Datagridview To Transfer To Another Datagridview?
Jul 10, 2010In 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.
View 3 RepliesTransfer All The DataGridView Rows From From2 To Another DataGridView Of Form1?
Mar 13, 2011I 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.
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Add N Rows To DatagridView?
Dec 23, 2011I have a datagridview that has two columns with combobox's in them.
On a previous windows form a number is entered and passed to the function which populates the datagridview.
How do I add rows based on that number? So if 2 is entered two rows are added.
In the combobox's players name are added from a textfile.
How To Add Rows In Datagridview
Jun 12, 2009when i press enter key then column value is incremented and i want that when i reach to column index 4 then a new row is created in datagridview and again this keydown event is executed and agin when i am in second row in gridview again a next row is created when column index is 4 so how to that .
through this code only i can move to next col when i press enter and i have made DataGridView1.AllowUserToAddRows = false
Private Sub DataGridView1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles DataGridView1.KeyDown
If e.KeyCode = Keys.Enter Then
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Apply To Datagridview 400 Rows?
Mar 14, 2011how to apply to Datagridview 400 rows?
View 3 RepliesCannot Remove Rows In Datagridview
Aug 11, 2011My datagridview is bound to a data table. I want to filter the datagridview without affecting data table. I know one way is to use bindingsource, but binding source will use column names in its filter. But I want to enable users to enter any string in a textbox to filter. So I pass datagridview by reference to a function PassFilter which removes unwanted rows in datagridview. I can see that it does execute rows removal in datagridview. But the problem is that when datagridview is shown on the form, it is unchanged, the same as the data table. I do not understand why rows are not removed on datagridview The code is as follows:
[Code]...
Cannot Remove Rows In Datagridview In .net
Aug 11, 2011My datagridview is bound to a data table. I want to filter the datagridview without affecting data table. I know one way is to use bindingsource, but binding source will use column names in its filter. But I want to enable users to enter any string in a textbox to filter. So I pass datagridview by reference to a function PassFilter which removes unwanted rows in datagridview. I can see that it does execute rows removal in datagridview. But the problem is that when datagridview is shown on the form, it is unchanged, the same as the data table. I do not understand why rows are not removed on datagridview
The code is as follows:
DataGridView1.DataSource = table
PassFilter(DataGridView1, m_FilterQuick.strFilter.ToLower())
Private Sub PassFilter(ByRef datagridview As DataGridView, ByVal strFilter As String)
[code]....
Clear All The Rows Of A Datagridview?
May 27, 2011I keep finding ways to clear all the rows of a datagridview... but i want to keep my rows..is there an easier way than looping through every cell to clear all the values out of the cells of the datagridview??
View 5 RepliesComparing DataGridView Rows?
Dec 2, 2009I'm building a tool to display xml within a DataGridView and then to compare the rows of data.
I have read the xml correctly and displayed it within the DGV and have sorted the DGV by 3 of the columns.
I'm stuck with comparing the rows as i need to check several things:
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Copying Rows From DataGridView
Oct 11, 2009When copying rows from DataGridView i getting empty DataGridView in other DataGridView.This is wrong in this peace of code.[code]
View 3 RepliesCount Datagridview Rows?
Mar 14, 2012I have hide some data in datagridview. When i write datagridview1.rowcount-1, it will count all data no matter is visible or invisible. But i only want to count data that display in datagridview. How to do??
View 3 RepliesDataGridView - Adding Rows & More
Jul 7, 2009I am trying to code a DGV that can insert(update when row exists) and delete records. I use Visual Studio 2005, and code in VB.NET. I am using a MS SQL Database. Some pages i have tried but are either lacking in detail or what i need:
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DataGridView - How To Add Rows Already Populated
Oct 20, 2009How do I add rows that have already been populated. I saw a param that took an array. I have 8 columns, so would I need 8 elements in my array when I add them I have the code:
me.datagridview1.rows.add()
But I want to modify the data in the row using code, how would I go about doing this?
Datagridview - Set Maximum Rows?
Apr 28, 2010How do you set the maximum number of rows allowed in a given DataGridView control? I'm using an unbound (meaning unbound to any data table) DGV to create a spreadsheet like entry. This is in order to allow the user to enter an array (80 elements). I can stretch the DGV into 80 columns and limit myself to 1 row or I can do 1 column 80 times. Either way, I need to limit the user to a finite number of rows...
View 5 RepliesDatagridview Add Column On Specified Rows?
May 10, 2011I has the code :
dgInventory.Columns.Add(col)
But this code will add columns to every rows in the gridview. How can I change the code so that it only add the column to row one instead of every row?
Datagridview Can Update All Rows?
Oct 24, 2011I've created my dataset and tableadapters using Stored Procedures from a SQL database.When coding the application, I have a variety datagridviews that populate when the user opens a particular record (most are sub-sets of data).My problem arises during the save routine. Because I am using SPs, my usual update line is something like this:[code]
View 10 RepliesDataGridView Does Not Show All Rows At First
Mar 9, 2010I fill the DGV by looping through a dataset and adding a DGV row for each datarow. After this the DGV.RowCount = DataSet.Rows.Count. Funny thing is that the DGV shows only a part of it (19 of 2448 in my example). After some testing I figured out that the rows show up if I change the Window size a bit.So now I use a work-around by including the following code after I've filled the DGV:[code]
View 2 RepliesDataGridView HeaderText With 2 Rows?
Mar 15, 2010is there a way to set the Headertext of a datagridview using two rows?And by the way can I set the maximum length of a string cell somehow? Or do I have to check the length in the keydown event each time?
View 2 RepliesDatagridview Rows Validity?
May 17, 2009[code].....
View 2 RepliesDatagridview With Lots Of Rows?
Oct 31, 2010The data is loaded from a xml file (which the code parse the xml, and create datagridview cell dynamically). and the user is allowed to change the data, when the program exists, it will write back to the xml file to save the change.It works fine when there are not many rows. when it has too many rows, say, 10K rows, the program loads slowly. I searched, found some suggestions, but it seems they do not work very well.1) when load the data, not create the rows directly. instead, create a datatable, then add the table to the datagridview's data source. it still takes time for the dgv to show the data.
2) then, I guess maybe I should paging the dgv. then it comes 2 questions:2.a) I only have a manually created table, how can I get a dataadapter/dataset from it? do I have to put data in a database table first (i.e. sql express), then load it to data adapter? is it possible to manually create a data adapter/dataset?2.b) if I paging the dgv, does it mean I still need manually update the dataset/datatable to keep the possible change when the user navigate through the dgv? or, I can simply use an update method?