Automatically Assigning Alphanumeric Roll No In Datagridview Column
Sep 28, 2011
i have a datagridview on a form which contains studentname (in alphabetical order) and a blank rollno field according to the particular class.Now what i m suppose to do is to assign roll no on button click, starting from first student to last student.
[Code]...
View 6 Replies
ADVERTISEMENT
Sep 28, 2011
i have a datagridview on a form which contains studentname (in alphabetical order) and a blank rollno field according to the particular class.Now what i m suppose to do is to assign roll no on button click, starting from first student to last student.
Roll no is like 11DCE001...For eg:-
Roll No StudentName
11DCE001 A
[code]....
View 1 Replies
Mar 27, 2011
I have a DataTable in a DataGridView, one of the columns has data that I want sorted. I can click on the column header to sort it and it's fine. The problem is that I don't want that column sorted automatically when some of the data changes in it. I want it sorted only when I click on the header.
View 3 Replies
Jan 2, 2012
how to sort a bindingsource basing on a column that has alphanumeric values
View 11 Replies
Dec 8, 2009
In a windows form I do have a datagridview. When a user pushes the button, the underlying datasource of the datagridview (a dataview) changes and the new content with new columns is shown. This works fine, only problem is that the header-height differs and that the datagridview does not properly display the smaller headers until I click into the first datarow of the datagridview. Simply using the .refresh()-method of the datagridview after assigning the new datasource does not seem to work.
Here is a little code-snippet showing how I assign a new datasource to the datagridview.
Dim view As DataView = myDataTable.DefaultView
With Me.MyDataGridView
.Columns.Clear()
.AutoSize = True
.DataSource = view
For Each col As DataGridViewColumn In Me.MyDataGridView.Columns
col.ReadOnly = True
Next ...
View 1 Replies
Apr 9, 2010
How to add a checkbox column at first column of datagridview including column header?After adding, how to code to "check all" or "uncheck all"?
View 27 Replies
Jan 9, 2010
I don't know if I worded this properly, but I have a mdb query that I display in a Datagrid on my form. The first column is TransactionNumber, which is the primary key and a running total (ex. RackingTransactionKey=RackingTransactionKey + 1). What I need to do is when the form is opened, find the highest (last) TransactionNumber from the query or Datagrid and assign it to a variable (RackingTransactionKey), so I can can update it (+1), therefore generating a unique number so I can add data to the query.
[Code]...
View 13 Replies
Jun 21, 2010
What I'm working on is a video rental project in visual basic 2008. I have a local database which contains info on DVDs, Members and a table for current rentals.The columns i have in the current rentals table are:
MemberID | DVDID | DaysOnRent | DateRented | DueDate | Overdue | TotalPrice
I have this data displayed in a datagridview, but the user adds it through a seperate form (called add a rental) with a 'details' view of the table on it. I've written code to automatically determine the TotalPrice and DueDate of the DVD in the add a rental form.
The Problem:I don't know how to get the database to automatically detect when a DVD is overdue (when todays date is greater than the DueDate).I want it to check it in the column "Overdue" (which is boolean)..so basically what I'm asking is how do i update the overdue column automatically depending on whats in the DueDate?
View 6 Replies
Oct 14, 2009
how do i go about creating an id column in a form using sql database which generates numbers automatically?
View 2 Replies
Feb 24, 2009
I'm making an app on wpf.Basically, I have a list view with 6 columns,For each item of the listview, its details are displayed are displayed in each of the columns, except the first.Basically I want the listview to automatically display a count of the items for the 1st column.[code]I have sorting and other weird stuff happening in the app, and I want to keep the first column constant. All that is needed from the column is that it counts the items.[code]I just realised this isn't vb .net so to speak.I code only on vb .net, but having trouble with that xaml bit atm. Would rather not use vb codes for solving this particular matter if possible
View 1 Replies
Feb 24, 2010
Add persistence to multible DataGridView in terms of Hide/Show column and column width
View 1 Replies
Feb 13, 2012
It seems that on clicking datagridview column header, the column will be automatically sorted based on the column type. I have a column showing some numbers. If column type is string, it sorts "1","20","3" into "1","20","3". If column type is double, it sorts into "1","3","20" which is the result that I want. However, there might be some erros in the numbers and error messages(text) will show in the cell instead of numbers. So I cannot set the column type as double. I want to ignore these error messages and sort all the numbers. How can I do this?
Also, I need to add some background colors to different rows in datagridview. So in the column header click event, I call the bkgColor Sub to achieve this. My question is that how can I override the sorting method in this event?
Private Sub DataGridView1_ColumnHeaderMouseClick(sender As Object, e As System.Windows.Forms.DataGridViewCellMouseEventArgs) Handles DataGridView1.ColumnHeaderMouseClick
Try
[code]....
View 1 Replies
Feb 27, 2009
i have a datagridview with three columns. i set the first column to visible=false, so the user can only see two columns.when the user presses the tab key in the first visible column -- column(1), i want to ignore column(2) so that the user only tabs through the rows in column(1)i can't get it to work. it will always tabs through the rows in column(2) even if i use the column name.
[code]...
View 1 Replies
Mar 25, 2011
I want to disable column in datagridview so the column will not receive focus,
when user press tab to move from cell to cell this column will be skipped and the focus move to the next cell or column.
View 4 Replies
Sep 14, 2010
I am wondering if data grid automatically shows a first column (empty) before the others, if that can be edited out.
View 14 Replies
Jul 8, 2010
In my window application i have taken one combobox field with its collection as "amc", "war" etc. Now in my datagridview this combobox column is display as Textbox column, i want to change it to combobox with the above collection "amc","war". I have retreiving the result in datagrid through sql query, hence in datagrid edit column section we doesnot have that part to change to Combobox column.
View 1 Replies
Jul 8, 2010
in my window application i have taken one combobox column with its collection as "amc", "war" etc.Now in my datagridview this combobox column is display as Textbox column, i want to change it to combobox with the above collection "amc","war".
I have retreiving the result in datagrid through sql query, hence in datagrid edit column section we doesnot have that part to change to Combobox column.
View 1 Replies
Dec 14, 2011
I have:
- Table1 with columns: PK_ID1, LOCATION, DIRECTOR, SELLER, SELLERID, WORKTIME (relationship), WORKCODE
- Table2 with columns: PK_ID2, WORKCODE (relationship) & WORK_DESCRIPTION
My DataGridView do a SELECT * FROM Table1;How can I replace WORKCODE with WORK_DESCRIPTION in DataGridView, please?
View 3 Replies
May 14, 2010
Dim Comp = From C In db.Table1 _
Select C.Completed, C.Taken, C.Namne
Datagridview1.DataSource = Comp
Am using the Entity Framework and Columns Completed and Taken are of bit Datatype. When the query results are displayed in the datagridview, these bit columns are returned as of ColumnType Textbox - so i get a Datagridview textbox column with true or false string values.
I want to display Completed and Taken as Checkbox columns (either ticked for True or un-ticked for false) but ofcourse i can't do this in EditColumn dialogue because the Datagridview is unbound.
how can i change this in code at runtime
View 1 Replies
Jan 18, 2012
Is there a way to find the column index of a datagridview column using the columns DataPropertyName?I currently use a loop (shown below in the class) which is kind of ugly, but it works. I'd like to do something like this, which seems more elegant.My goal is this, I store the users DataGridView column settings (i.e. DisplayIndex, Visible, & Width).When the user opens the form that contains the datagridview I want to get those settings from the database and apply the settings to the datagridview.[code]
View 5 Replies
Dec 13, 2010
I have a data gridview on my windows form with 4 columns. Now I identify a column as followed:
Dim item1 as String = DataGridView1.Item(1, index).Value
So now I use a number ( In this case: 1 ) for the column index, but I want to make it a bit more readable so now I want to obtain the column index based on the datagridview column name.[code]...
View 6 Replies
Apr 9, 2011
I want to move the cursor from column 1 to column 4 but what happened instead the cursor moves to column 5, this happens when I use the enter key event. but run well if I double click. The following description of the program: there are 7 columns of code, item description, unit, price, qty, discount, item amount code when key enter press :
[Code]...
View 3 Replies
Jul 7, 2010
I am trying to click a checkbox in the datagridview to automatically populate a textbox in the same datagridview with the current date/time.
I have the following code which gives the error
Private Sub DgvReturns_CellClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DgvReturns.CellClick
If e.ColumnIndex = 4 Then
[Code]....
View 7 Replies
May 24, 2010
I have a strange problem with a DataGridView I'm using which is bound to a table in VB.net
I've added a checkbox column to allow a user to tick a bunch of rows that I can then loop through and save off to a different table. All the checkboxes are enabled by default. So it's really a case of unchecking the rows which aren't required.
However, the DataGridView re-enables any checkbox that I click after I click on a checkbox in another row. So in effect, only one row can be unchecked at a time.
EDIT: I forgot to mention this is a Windows form, not an ASP.net application.
View 3 Replies
Jun 5, 2011
Some codes here on how could I validate my datagridview? I mean, a certain column on my datagridview should accept integers only, otherwise, it will return a messagebox. Kindly include on which event it should be posted.
View 17 Replies
Mar 15, 2011
I 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]....
View 2 Replies
Mar 11, 2010
A datagridview is sorting numerical values (when clicking the datagridview column header text) in the wrong order based on the initial digit:
[Code]....
View 1 Replies
Jan 24, 2010
I have a standard DataGridView. One of the columns is a DataGridViewComboBoxColumn. When I select one of the ComboBox items, I want to trap the change and add additional columns based on the item selected in the ComboBox. I've tried using CellValueChanged for the DataGridView column, and a bunch of other events, but none of them is fired when the DataGridViewComboBox value is changed. What event can I trap to make this happen? Right now as I said, I am using CellValueChanged, but of course the event doesn't fire until I click on another cell...
View 1 Replies
Mar 17, 2011
I have three GPS antennae on a boat. They are in fixed xyz positions relative to each other. For example:
[Code]....
View 2 Replies
Sep 7, 2010
I have a DataGridView and have the AutoGenerateColumns property set to false, but the when I build my project the columns are Auto Generated.
I can see the property set to false in the Designer.vb code for the Form.
I've had this problem before and I'm not sure how to fix it.
View 1 Replies