I'm using an unbound datagrid to make a balance sheet and I need to have a certain row sum the previous rows but it only concatenates (obviously the cells default as strings but I don't know how to fix it). I've really only worked on VBA and this is my first crack at .net Here's what I've tried that is wrong:
[Code]...
Dim _tableBackLogs As System.Data.DataTable
Do While i - 2 > 0
_tableBackLogs = Global.DataAccess.GetDataTable("SELECT SubjectID,SubjectName,Grade FROM SubjectPI WHERE RegNo='" & CInt(HttpContext.Current.Session("userName")) & "' AND Status='Fail' AND Semester='" & i - 2 & "'")
i = i - 2
Doing this replaces the previous data in the DataTable. I want to retain the previous data i.e i want the new rows to be added to the DataTable w/o replacing the previous rows.
How to copy the all rows of dgv that is bound to another dgv that is not bound?
View 7 RepliesHow to delete all rows from unbound datagridview ?
View 1 RepliesI have a datagridview that has 1 combobox column (it will eventually have between 1 and 3 more) but I can't find anything anywhere on how to add rows to this column. I create the columns:
[Code]...
I have a datagridview that is populated from a selected CSV file I have purposely done this by NOT using bindings on the control.
Here is what i need to do:Pass the cell's to an API called through HTTP.
Headers for datagridview are:
HEADER1
HEADER2
HEADER3
how the http should look:[URL]I need to loop through every row in the datagridview and apply this process to each row.
Is it possible to query an unbound DGV to get a collection of rows where a column contains a certain value? Can LINQ do this?
View 10 RepliesI'm writing an Windows Form Application and need to add an unbound checkbox to a datagrid.The datagrid displays the fields of an Access 2007 table and I need the checkbox to give the user the option to select/deselect any of the records shown in the datagrid. After the user clicks on a button, the application must read the whole datagrid to detect what records were chosen by the user and process each one accordingly.I tried using TableStyles but as this new column is not part of the database, it won't work.
View 4 RepliesHow to add unbound check box column to databound DataGrid (WinForms .NET 1.0, 1.1)?
I cannot add fake column to the data source because it is data view coming from elsewhere.
What I am trying to do basically is open an access query in a datagrid view and then be able to make changes to the datagrid and then save it back to the database.When I try to save:
Me.BindingSource.EndEdit()
Me.TableAdapter.Update(DataSet)
It says that update is not a member of the tableadapter... Why is that?
I was wondering the best method or code to Sum\total a bunch of cell values of an unbound column in a datagrid to a textbox string. this request is 100% genuine...im not some student trying to get you guys to finish my project, this is purely for educational and personal information for myself. im new to vb.net.
View 2 RepliesI have a table in a data grid the columns are bound to the columns...
SQFT QTY WIDTH LENGTH
i also have added into the datagrid an unbound column called Yeild%.what i'm trying to do is the following formula
SQFT / (QTY * (width * length / 144) and have the result return the answer in the unbound yield column for that row represented as a percentage
So if SQFT = 178 QTY = 2 Width = 144 Length = 102 answer would be 0.87 (rounded)
so this would be 87%
merge two rows in to one row from many rows below is data example:
id Date AccessType Empno CardNo
1 |04-03-2012 07:23:42 AM | Door Access Granted | 150512 | 8543183
2 |04-03-2012 09:37:05 AM | Card Exit Granted | 150512 | 8543183
3 |04-03-2012 11:08:07 AM | Door Access Granted | 150512 | 8543183
4 |04-03-2012 03:20:32 PM | Card Exit Granted | 150512 | 8543183
5 |04-03-2012 07:47:09 AM | Door Access Granted | 150506 | 8234333
6 |04-03-2012 09:37:03 AM | Card Exit Granted | 150506 | 8234333
how to do cursor moving from one grid it effect to another grid.example Grid A and Grid B have the same number of rows. when I click current row on data grid A, the selected row on data Grid B also follow data grid A..
View 1 RepliesI have a DataGridView (dgv) on a Windows form (VB.NET) which is bound to a datatable. One of the bound columns is a an ID (Foreign Key) to another datatable. All I want to do is Hide the ID column and populate an unbound column with the Name (ParmName) for the user. I searched the foreign value in the datatable and retrieved the information. I set the Value of the cell in the Datarow. All works well, but does not display. The cell accepts the value...I can even Debug.Print the values to the console. They are there just nothing displaying in DataGridView. Nothing odd about DataGridView. Should be straight forward...
My Code
,
Dim dtParm As DataTable = MyDataSet.tblParameter
Dim dgv As DataGridView = Me.dgvResultNum_DataGrid
[code]....
In my datagrid, i added a checkbox column, and what i want to do is be able to change the value of one column (in as many rows that are selected) to a certain value. Like from a combo box is it possible to have a combobox in a messagebox? or do you have to create a new form?
View 5 RepliesI am trying to summarize a datatable based on a primary column and then add certain columns. For example this table
col-1 col-2 col-3
1 AA 2
2 BB
[Code].....
This simply doesn't do anything becuase it thinks the target table doesn't have a primary key.
When referring to a list or group in .net, generally, it starts with 0 as the first item, but concerning the starting place in an Access table the first row is considered 1. Is this correct and, thus, represented in the code below?
Code:
intCurrRow = 0
If dtOrderEntry.Rows.Count > 0 Then
ShowData()
[code]....
I am using MSHFLEXGRID control to display data from an access-database table. The grid contains entries some of which are to be selected by the user but I want some of the rows to be disabled/skipped(avoid selection of those rows). I have grayed out the unusable rows and dont want the gray rows to be selected.
Code:
Private Sub MSHFlexGrid1_RowColChange(ByVal sender As Object, ByVal e As System.EventArgs) Handles MSHFlexGrid1.RowColChange
[code].....
I have a problem with my datagrid(I am noob sorry if its simple). The datagrid is binded to a data table. What i want do is when a product is added or an existing one changed then make that one the selected row in the datagrid. The SelectionMode of the DataGrid is set for the whole row.
Here is the code that i am currently using,[code...]
Now as you can see from my code i don't understand how the index can be wrong as the datagrid is binded to a datatable and the indexes would be the same, and i have the current row in the datatable and look for the index in the datatable and stored it as a Integer!
I've a database in which there are 3 tables. Each table has five columns EXCLUDING the auto generated ID column. They are :
[Code]...
I am having trouble Counting the number of rows in a specific column in a datatable.
View 2 RepliesI am making a game and decided to add a high score section. I currently have this code setup to insert and read from the database, I set the insert code to a bottom just for testing purposes.[code]There are three columns in the database rank, score and name. I set the rank to auto number so the database would assign the player rank automatically, how would I go about inserting the score into the relevant place inside the database and moving the other scores to their new relevant places?
View 1 Replies1) I have a checkbox field in a datagrid, and when you check the box, it highlights the entire current row, and when you check the next one, it stops highlighting the first one and highlights the one I just clicked on. What I would like to know is how can I keep all the rows with a checkbox highlighted?
2) I have a column in my datagrid that I have changed to combobox and I did two things both gives me this error, first I inserted the values for the combobox in the collection. Second, I connected to one of the tables with a binding source and has one of the columns as the options (advisors).
Each student has a different advisor so the field gets set to the correct advisor each time but the problem I am getting is when I scroll (doesn't happen for a little while) I get an error so i put in this sub to handle it and the error message box says: Error Happened Formatting, Display.
Private Sub DataGridView1_DataError(ByVal sender As Object, ByVal e As DataGridViewDataErrorEventArgs) Handles DataGridView1.DataError
MessageBox.Show("Error happened " _
& e.Context.ToString())
If (e.Context = DataGridViewDataErrorContexts.Commit) _
[Code] .....
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]....
Usually, to go through my Access Database records in VB, i used the "Data control tool" in the older versions of VB, but i cant find it in VB2008, is there anyother tool that allows you to scroll through Access database records, on VB 2008?
View 1 Replieshow to add multiple rows in a datagrid from data base
View 6 RepliesI have a DataGridview1 box and a listbox called rebuilt which contains the raw data I need put into an array and then dumped into the DataGrid.[code]....
View 1 Repliesis it possible to have a datagridView in which each column can have diff no of rows in it?
View 1 RepliesI selected and put one checkbox control in datagrid. How can I get checkbox in all rows?
View 1 Replies
