Bound Datagridview Sorting With Numeric Data
Jun 28, 2009
I am a programmer from Uruguay. I have read the other similar questions about my problem, but nobody has given the answer I need. I use VB .net 2005 and its datagridview. I bind it to a dataset which is populated with a table of MySql. And when I sort the numeric columns, it sorts them as string, not numbers. I have tried casting the data to integer in the sql statement, but it doesn`t work. I changed the format of the column of the datagridview to single or long but it didn't worked either. I really can't believe it is happening, it is a so common need! I thingk It should be totally automatic.
View 12 Replies
ADVERTISEMENT
Nov 17, 2009
I am automating a datagridview that will hold the name of an object in one column and the number of units in the second column. The datagridview keeps recognising my numbers as a string and doesnt sort them accordingly. Any ideas how to inform the datagridview to sort by numeric?
View 3 Replies
Dec 9, 2010
I am using VB.NET 2005 and my problem is to sort binded DataGridView using numeric sorting (but for strings). As i understand problem is the same as in:http:[url].......or in http:[url].......My DataGridView.Datasource = DataTable. I want DataGridView to be able sorting numericaly when Column headers are clicked. This common function must be very easy, but unfortunately it is not :(. How can i get write sorting? I don't find answer in internet.Link1 is without explanable and i think it is for unbinded DataGridView and link2 is for for C+ or C#.
Examples:
Real Sorting when clicked on "Ports" header (other columns need write sorting too):
"COM1"
"COM10"[code].....
View 3 Replies
Jan 27, 2012
I am using VB.Net 2008 application program. I am using DataGridView, where column types DataGridView TextBoxColumn. I have 3 fields. 1 field values are numeric, 1 field values are string and 1 field values are decimal. When I try to sort the string value column, it sorts correctly. But when i try to sort the numeric value column, it sorts as if its string value.
View 3 Replies
May 20, 2011
I've been searching for days for a solution. I've scoured the internet and other forums and tried so many things at this point that I think my brain may explode.I receive a large XML file from a third party vendor. I have converted the XML file to a a dataset and use the dataset to fill a datagridview with a specific table. I do not have a schema from the vendor and the XML file does not contain any data type information. The datagridview populates fine but all columns are defaulted to type string. This presents a problem when sorting columns that should be numeric - they sort by string comparison instead of logically numeric. I've tried numerous ways to attempt to convert the datatable columns to integer to no avail.
[Code]...
View 3 Replies
Feb 7, 2009
I have an unbound datagridview that has 2 columns. Both columns contain numeric data only and will only go to 55 in count. How do you sort a Datagridview Column in collating sequence? I basically want to sort from 55 down to 1 and 1 to 55 in their respective numerical order.
View 3 Replies
Jan 23, 2012
I have a bound Datagridview with a column Quantity in which I want to enter numbers but dont want the user to type a decimal. E.g. 100 should be allowed, however 100.23 should not be allowed.Have set the DefaultCellStyle property of this column to
DataGridViewCellStyle { Format=N0 }
AND
Also in my Form Load event i have entered below code:
Me.DataGridViewTblInvoiceDetailsAndTblTempInvoiceDetails.Columns(2).DefaultCellStyle.Format
= "N0"[code].....
However this is not working.When I run the program it is allowing me to enter decimal values.
View 1 Replies
Jun 28, 2011
I have a datagridview with four columns, the first of which is date. I was wondering if there was a way to sort all of the data by date using code. I was thinking about doing a bubble sort, but I feel like there must be an easier method.
View 4 Replies
Feb 9, 2012
I have a dgvAssetsSummary which holds data queried from the database, it hold's the AssetType column and Total column, it's grouped by AssetType, giving a summary of all the totals and what assettype they belong to.I'd like the Total column to be formatted so that there are no decimals and with commas, at present each total has four decimal places and no commas, this needs to be able to be read easily by clients. I've tried using the following code to format the column after I query the database, but to no avail.
dgvAssetsSummary.Columns("Total").DefaultCellStyle.Format = "#,#"
how to do this, I've had a bit of a look around but I can't find much. I'm currently looking at a couple of pages from the msdn library about it.
View 5 Replies
Sep 22, 2009
How to update data in a table bound to a datagridview? Using Visual Basic 8.
View 1 Replies
Jan 17, 2012
How can i sort the following
2 Module for Drawing
6 Module for Typing
5 Module for Maths
[code].....
View 12 Replies
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."
View 2 Replies
Apr 12, 2011
I have a vb.net app that uses a table from an ESRI shapefile. The user the datagridview is populated based on a query. Now I need the datagrid to sort on three different fields, as in Street Name => Address Number => Unit. (I can sort on one field)
I've tried to use code samples on the IComparer class but am just not getting there from here. I may be missing something really really simple. (so I attached the code sample I'm using).
My 'workaround idea' is to add a column when the datagridview is populated and concatonate the three fields together. Then I can sort on that new field. I can add the column, but haven't figured out yet how to concatonate the values in the three fields into this new one. And I'm concerned about speed.
View 4 Replies
Jan 22, 2012
Anybody have tried having fixed number (painted) of rows on a datagridview regardless of the number of rows of the datasource??? i.e. datagridview will still show 20 rows even if the the datasource have 8 rows only? like gridlines already painted as is - with/without datasource binded.
View 12 Replies
Feb 10, 2012
with more control over changing values in a data bound DataGridView.On form load, all the data is pulled down from the attached database and fills the gridIf I want to change one of the values in the grid, I can put my mouse cursor in the cell, change the entry and save it back to the database.
View 10 Replies
Apr 2, 2010
[Code]...
How do i sort the listbox in numeric order , I wanted them to be sorted like the way i did below :
[Code]...
View 8 Replies
Jun 5, 2011
I am creating one application visual basic and sqlce.I have two forms name Form1 and Form2.
I used Form1 to add data to database using OLeDb command and used Form2 to show data in datagridview by using dataset[code]....
View 1 Replies
May 1, 2012
I have searched the web and this site for an answer but have not been able to solve this problem.I am not able to place a flashing cursor in a specified cell of a data bound DataGridView on Form_Load.My test project consists of a single Visual Basic 2008 form with a database created in Microsoft SQL Express 2005 using the Add New Data Source in the Data Sources window.The database has one table consisting of 2 columns.Column 1 being the primary key with Identity Specification set to On.The second column is a VarChar50.The DataGridView was placed on the form by dragging it from the Data Sources window thereby creating the Binding Navigator and the Private_Sub Form_Load code.I have added the code that should put the cursor where I want it.[code]
View 2 Replies
May 19, 2009
I have a DataGridView object to which I've bound a list of objects (of type Asset) returned from a database query.I'm programming in VB using Visual Studio 2005.I want to grab two copies of the bound object (calling them oldAsset and newAsset) from the selected row in the DataGridView, update newAsset based on input from other controls on the form, and pass both oldAsset and newAsset to a function that will update the appropriate record in the DB.I try to grab the two copies like this:
Dim currentRow As DataGridViewRow = Me.AssetDataGridView.CurrentRow
Dim newAsset As Asset
newAsset = currentRow.DataBoundItem
[code]....
Opening a watch window on oldAsset and newAsset indicates that the appropriate values are pulled at this point. But when I try to change a property of just newAsset, like
newAsset.CurrentLocationID = cboLocations.SelectedValue
I see that the corresponding value in oldAsset is also changed. This is not what I want, but it's obviously what I'm telling the computer to do.
View 1 Replies
Feb 21, 2012
I have a problem with the auto-complete behaviour of comboboxes in VB.NET (with the .NET framework 2.0).I am using a combobox to type in numeric values, and its DropDown list to suggest possible numeric values. This list is sorted in ascending order, for example {"10","92", "9000", "9001"}.The combobox properties are set as follow:
AutoCompleteMode: SuggestAppend
AutoCompleteSource: ListItems
DropDownStyle: DropDown
Sorted: False
The DropDown list is simply filled like this:
myCombobox.Items.Add("10")
myCombobox.Items.Add("92")
myCombobox.Items.Add("9000")
myCombobox.Items.Add("9001")
When I don't type anything, the order of values of the DropDown list is correct, in original/ascending order. However, when I start typing something, the suggested values in the DropDown list get sorted (alphanumerically): if I type "9", the list of suggestions becomes {"9000", "9001", "92"}.I would like to prevent this behaviour to get the values of the list in the original/ascending order. I can't figure out how...A possible work-around would be to pad with zeroes the values in the list, e.g. {"0010", "0092", "9000", "9001"} but I would like to avoid this.
[code]...
View 1 Replies
Jan 24, 2010
I've been asked by a local window cleaner to design a small utility that can display a grid of customer data, sort them, and then export it out as a formatted .txt or rtf file.
View 14 Replies
Jul 28, 2011
I have a datagridview that is populated from an Oracle 11g DB. What I would like to do is add the values of a column together and display the results in a textbox. What would be the easiest way to do this?
View 2 Replies
Mar 13, 2012
I'm trying to resize any image fields in my data-bound DataGridView to 200x300; the column resizing code looks like this:
[Code]...
View 5 Replies
Jun 4, 2010
I have a DataGridView that is bound to a DataSet I created from a database table named Contacts. The Contacts table contains a field called StatusId. StatusId is a foreign key to a table called Status. The Status table contains StatusId and StatusName.
[Code]...
View 1 Replies
Sep 1, 2010
I have DataGridView display Customers Details. The DataSource are from DataSet. After the user have created a new customer record and updated the SQL SERVER Table, Instread of refreshing the whole DataGridView I am trying to add new rows with data from the TEXTBOX into the DataGridView and it generated this error message: Rows cannot be programmatically added to DataGridView's row collection when the control is data-bound This is the coding which the error was generated from:
Private Sub FRefreshDataGridViewRow()
'use strmode to determine New or Edit existing record
Dim strCell1 As String = CType(Me.txtCustId.Text, String)
Dim strCell2 As String = CType(Me.txtCompName.Text, String)
[code].....
View 2 Replies
Apr 17, 2010
I have a databound Datagridview. The DGV is bound to a datatable of a strongly typed DataSet created using the wizard. Is there any way to re order the columns before displaying them eg: the Columns are displayed in the DGV in this other Col4, Col6, Col3, Col1,Col5, Col2
But I want to it to show as Col1, Col2, col3, Col4, Col5, Col6?
I realise that the display order followed the Column order in the database table and by extension, the datatable. I have re-arranged the columns in the Database but the Datatable still retains the old order.
View 4 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
Dec 4, 2009
I have a few classes, one is a form, the other is the source of the datagridview. I want to be able to sort the columns of the datagridview by clicking on the header. Here are the classes that I am dealing with:
Imports DiscoveryByte.AddTools.Misc_Tools
Public Class ViewDiscoveryFlashCards
Private DBBindingSource As New BindingSource
[code].....
View 1 Replies
Jul 9, 2010
There is something strange going on with my datagridview.
I've a data adapter that fills the underlying data table from a database. Then I assign this datatable as datasource to the datagridview Then I add a row to the datagridview and immediately I need to update the table in my database (as soon as user leaves the newly created row).
At this moment I have more rows (+2, not +1) in my datagridview than in the underlying datatable (the new row doesn't exists yet in it so the data adapter .Update method doesn't write anything to the database).
When DataGridView's .RowLeave event fires the undelying datatable is not yet updated. I've a question - is this behavior normal?
View 4 Replies
Dec 12, 2010
If using a datagridview to update a database and the datagridview is bound to a bindingsource which has its datasource as the table to be updated: where dshould you place the tableadapter.update(mydatarow)
View 5 Replies
