Datagridview Named DGVAttend Which Has 21 Columns, Including A Date Col?
Jul 7, 2011
I have a datagridview named DGVAttend which has 21 columns, including a date col. It takes data from more than 100 text files. Only those files are processed which has relevant data and within it only relevant data are copied and not the full file.
Dim NoOfRelevantFiles As Integer
Dim RelevantFileNames As System.Collections.ObjectModel.ReadOnlyCollection(Of String) = My.Computer.FileSystem.FindInFiles(frmTxtFileDetails.txtboxFolder.Text, "Daily
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May 20, 2010
I would like a column in my datagridview to display todays date. Also to caluclate all the row charges of todays date and display them in a text box.[code]
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Nov 8, 2011
im asking for help on how to Make Folder and it name by current Date?
sample today is 11-08-2011
so program will create a folder name 11-08-2011 (Nov.08,2011)
and also creation of folder triggered by timer lets say Folder creation every 11pm daily.
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Mar 17, 2010
I have a table named fec in which i hv column named EndDt having Date/Time Data type.Now i want to display those records in my report which have EndDt less than Date i pick from DateTimePicker and month is current month.Private Sub DtpDefault_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DtpDefault.ValueChanged
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Aug 5, 2012
I read that .Net has no function equivalent to Excel's "Workdays" function, which adds a specified number of workdays to a startdate, including an array of holidays. I managed to find a function that adds the number of workdays to the startdate, but I am having no luck telling the function to add a day to the start date for each holiday within the date range. I've pasted a self-contained function below. Every time I compare the result against the Excel result, it's not adding up.
Private Function CalcEndWD_5wkd(StartDate As Date, WD As Integer) As Date
Dim Holidays(23) As Date
Holidays(0) = #10/5/2012#
Holidays(1) = #11/12/2012#
Holidays(2) = #11/21/2012#
[Code] .....
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Jul 1, 2011
how can i open a csv file in which part of its name changes daily, mainly the date (including seconds)?
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Oct 26, 2011
I'm using VB.net 2005. I have working programs that I populate DataGridViews with something like the following:
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Sep 21, 2011
My application is in VS2008 coded in vb.net.I have a table with three columns FromDate,Todate and Schedule.FromDate and ToDate will have date values whereas Schedule will have a any of these values(weekly,Monthly,Yearly) In my Form i have given some provision to the user to check the records.
My requirement is The currentdate that is Today's date should be compared with the values of Fromdate and ToDate.First it should be check whether Schedule value is Weekly or Monthly or Yearly.If it is weekly than it should check the record in between fromDate to ToDate with a increment of one week.That means it should first check the first value of fromDate than add 7 days to the value and then again check from fromDate and this should continue till it reaches Todate.
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Sep 21, 2011
My application is in VS2008 coded in vb.net.I have a table with three columns.FromDate,Todate and Schedule.FromDate and ToDate will have date values whereas Schedule will have a any of these values(weekly,Monthly,Yearly)
In my Form i have given some provision to the user to check the records.My requirement is The currentdate that is Today's date should be compared with the values of Fromdate and ToDate.First it should be check whether Schedule value is Weekly or Monthly or Yearly.If it is weekly than it should check the record in between fromDate to ToDate with a increment of one week.That means it should first check the first value of fromDate than add 7 days to the value and then again check from fromDate and this should continue till it reaches Todate.
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Apr 12, 2012
I'm working in visual studio 2005 and developing a windows form that has a datagridview on it.
One of the cells is a Calendar Column type (custom made). I pulled the code for it off the internet - it basically allows the user to select the date from a small calendar.
When the date is changed, it gets the correct value and it also saves into the database with the correct value.
The problem is that it doesn't load onto the grid with the correct value. In fact, no matter what date I enter in, it always displays it as 1 day earlier. e.g. If I saved it to the database as 4/19/2012, it displays it as 4/18/2012.
I verified that there's no other column in the query that retrieves the data for the grid that contains the value it's displaying.
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Oct 20, 2011
I'm trying to split a date column into multiple columns by year. If I could achieve a roll-up subtotal at the end that would be awesome.
I'm thinking the best way to do it, is using a .NET datalist control, but I'm open to suggestions.
Example data:
DATE | SALES
1/1/2009 | 1234.56
2/1/2009 | 4567.89
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Aug 3, 2011
also i have a table called Orders with several columns, they contain information about the order and store the ID of the Customer they belong to.Question is: how can i query that table with (preferably) linq (the datacontext is from LinqToSql) to return the following dataI want to search for any entry with the matching CustomerID which took place, group them by Year, Sum the Totals respectively and add them to the listview?I now i could use lamda expressions and aggregate, its just not clear how (option infer on,db is a datacontext object,CustomerID is an int32 variable):
Dim Orders = (From order In db.Orders Where order.CustomerID = CustomerID).GroupBy(Function(p) p.Date.Year).GetEnumerator
I reckon i'd have to create an anonymous type like the following:
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Mar 16, 2009
I am having trouble with a table adapter i am working on. In the table adaptor query i am having adaptor take a sum of the data that falls within a date range in a few columns. then i have some text boxes on my program refencing the columns that are being summed together. The program then gives me an error when i go to run the function.
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Jun 5, 2011
This is something that's been bugging me for a while. Say I have a dgv with several columns and rows of data. Many times while working with the grid, it's necessary to know the number of the column, but all you know is the column header name, or vice versa. Is there any internal command that will return these values, or is there at least a better solution to the problem than making a function that loops through every header name until you find the one you want? It just seems so inefficient.
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Aug 2, 2010
I have 2 datagridviews on different tabs of a tabcontrol.The user can input names into datagridview1 column1.I want these names to automatically appear in datagridview2 column1, in such a way that when rows in datagridview1 are added and removed the same rows are added and removed in datagridview2.I also want the column sort function to effect datagridview2.
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Jun 22, 2010
is there an easy way to make the size of a datagridview expand dynamically (like say it is not long enough to display all the data it will grow in width), or do i have to implement this functionality manually?
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Nov 30, 2009
I'm using the follow code to grab values when a row is selected on my datagridview:
Me.DataGridView1.CurrentRow.Cells(0).Value
in this case for the first column. I am doing this for several columns. What I would like to do is switch to specifying the columns by name so the code won't have to be changed if columns are moved around. I have tried several things that didn't work. Can anyone supply me with the code to retrieve the value of a column on a selected row by the name of the column?
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Jan 5, 2010
I have a simple DataGridView that I fill in with data from a SQL server source. The query is fairly simple and after the grid gets populated I manually add several new columns and then iterate through each row and fill in the columns with appropriate data. all that works well. but now when i click on a column header to arrange the data the data in the columns that were manually added disappears. is that suppose
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Jul 31, 2010
2 of the columns have data added to them separately from 2 textboxes so I want to disable these 2 columns and also have it so that when I tab through the cells the cursor does not enter the disabled columns but goes directly to the next enabled column of the row
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Apr 22, 2012
i have a datagridview (editable) dataset is bind with datagridview datagridview contains 20 columns and several raws but when i use dataset1.writeXML(location) it writes XML of only first 7 columns and all raws
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Jul 18, 2010
I am workinng on an aopplication using the DataGridView.My intent is that the DataGridView is displayed with four columns, the user clicks on a row in any column and the complete record for the selected item is displayed and the DataGridViewis no longer in view.
The code to do this is in the event "dgvCollections_CellContentClick" and the function works exactly as I want it to.The problem is that when I want to sort by a specific column I click on the column header and not only does it sort , it calls the 'CellContentClick' event and the details form is displayed, which I do not want to happen.Is there a way around this problem other then using the "dgvCollections_CellContentDoubleClick" event to select the detail? This was what I did as I sterted this project and I found that the double click was very sensitive and often did not work. The single click is much better for the eventual user.
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Jan 8, 2010
I have formated a column : "N2" but when it is : 1,2 or 1,3 or 2,3 .... then it OK BUT IF IT IS 0,1 OR 0,2 OR 0,.... THEN MY PROGRAM DETERMINE IT IS LETTER BEHIND ZERO , NAMELY THEY ARE 1 OR 2 OR 3.... I want it should be exactly 0,1 or 0,2...
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Jun 7, 2011
I need to get the product of the 2 columns in the same row but my problem is the values of my datagridview come from database and the number for rows is not fixed.
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Jul 15, 2009
(All of this is in a datagridview) i would like to know if it would be possible to say, take Columns 1 and Column 2 and multiply the value of each row and post it to a Column 3 with each row in Column 3 reflecting the multiplied values of the previous 2 columns..
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May 24, 2012
I have a datagridview.I fill my datagridview using csv file. I need to filter it using 2 datetimepickers. The filter must display only the columns which are the start date, range of columns between start date and end date, end date. I give you the code and the screenshots that how my program result must look like. My code is not working here even after click the button1 it not filters. Please can any check this. sorry for bad english.Here are my csv file,code and images. My result must look like image2. here the tportera column must not be filtered. it must remain there.[code]...
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Sep 1, 2011
I�m migrating a project from VB6 to VB.NET 2010 Express. Im replacing msflex grid with datagridview. But i�m not quite familiar with it. Im not using datasource. This will be done (far) latter.
So far i�m filling datagridview by code reading a recordset from mdb. Works fine.
The problem is that, I have defined the columns at visual studio designer mode, without using any code. When I open my mdi child form for the first time it works. But If I close this form and open it again a error occurs because it loses the defined columns.
how to preserve columns defined at design after close de form?
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Mar 26, 2010
My MS-Access database contains 30 "table" files with identical formats (e.g. Composer, Arranger,Lyricist, etc.) and I use a common VB.NET form and DataGridView for displaying and editing any one of the 30 tables. When a user makes a menu choice, the menu program puts the file name and its first field into two global variables and then shows a form that contains an unbound DataGridView. This other form then loads a dataset from the appropriate database table and programatically binds the DataGridView to the DataSet. (I clear the dataset before filling it.)
All goes well and three DataGridView columns are displayed for the first time. However on subsequent operations, the DataGridView retains the columns that were previously generated along with their column headings (but no data) and I get six DataGridView columns. On the third operation I get nine DataGridView columns.
I have unsuccessfully tried to obtain a count of the number of DataGridView columns so that I can remove them from the DataGridView but it always gives me a column count of zero.How can I accomplish the simple task of removing all columns from the DataGridView?
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Aug 28, 2011
How can I chanage the code below to work with a datagridview:
Public NotInheritable Class DataColumnCollectionExtensions
Private Sub New()
End Sub
[code].....
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Aug 5, 2009
during design time i cannot figure out how to resize the datagridview columns in vb.net!
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Oct 21, 2009
I have a datagridview and few testbox. User types in the details into the text box and when pressed enter it adds to the datagridview. Now the question is user will be allowed to save the rows into a text file but it in not saving in a proper format ie i am getting as:
Quantity Name Rate
--------------------
12 wers 30
2323 ertd 40
[Code]....
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