Extra Row In Datagrid When Using Filtered Dataview As Datasource?
Jun 9, 2009
I am filtering a dataview which is used for a datagrids datasource.At runtime when I apply the filters (using Checkboxes to determine the RowFilter text) I get an additional blank row at the top of my grid. This is then treated like a row & is filtered out with other rows that don't fit the filter criteria but comes back when I remove the filter. Basically, its part of the underlying DAtaview it seems. It's not persisited to database but I can't seem to get rid of it when I'm filtering.
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Jun 1, 2009
I start by looping through a string array, parsing out the strings I want and saving them to a temp table (I believe this part is working).Then, I take a DataView of the tale to get only the unique values from the rows.Then, things get messy, I need to get these unique values into my dataset. I been trying to do so using the DataView and also by passing the View to a new temp table then looping the values into the DataSet
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Apr 28, 2010
I have an application with a "filtered" DataView. The Dataview is bound to a form through a CurrencyManager. The problem is that when I add a new record using CurrMgr.AddNew(), and then use the CurrMgr.EndCurrentEdit() before saving the new record, the currency manager will point inmediatelly to the last record. How can I ensure the currency manager stays in the new record?.[code]
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Aug 5, 2011
I want to find a particular ID in a DataTable, I am using a DataView to filter the results, but how do I know which row in the original table the filter view corresponds to? Any ideas? In know I could use LINQ but I don't think this would help either?
[Code]...
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Jul 11, 2011
To add Row programmatically,
Connected Datagridview with datatable
I like to add Blank Row in the datagridview, So
On the Last Cell, CellLeave Event
Datatable1.Rows.Add()
It is adding a row in the dataTable, but adding two rows in the datagridview, why...?
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Feb 3, 2012
This is my data stored in table1,
[Code]...
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Jun 9, 2009
I'm tryng to filter a Dataview & bind it to a datagrid but when I do the below, there is no effect. The dataview returns the original recordset.
Dim
filteredProductSpecs As DataView = Me.ProductSpecifications.DefaultView
filteredProductSpecs.AllowEdit = True
filteredProductSpecs.AllowNew = True
[Code].....
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Aug 12, 2010
I have defined a datagrid which has combobox in one of the columns, is there anyway to modify the datasource of the combobox (the source of the list) at run time?
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May 17, 2012
just curious what happens when i set the datasource of a combobox or datagrid or what-not to a dt then when i want to change what's in the combobox etc., i just set the datasource to a new one. i am cleaning as i go but just want to know what happens to the old datasource:
[Code]...
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Nov 20, 2010
If want to do a DataView.Find on a DataTable that is already 'ORDERED' by the Column I am seaching, so a DataView.SORT should not be necessary, but it throws an Exception if I don't give a .sort command before the .find command. Is there any way to avoid this apparant duplication ? and speed up the search time. Its a very large table - 1 million rows. I am using VB 2010
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Jan 5, 2012
I got a problem with dataview that get data from datatabel (Col1 : ID,Col2: Time) and I'm sorting by Time in desc ... when the values for example {40.21,80.21,70.25,25.2} the dataview sorting them as I need but when one of values goes above 100 for example {40.21,80.21,100.25,25.2} the dataview always sort the highest number is the buttom, I don't know why ..
This is a sample code
Dim dt As New DataTable
dt.Columns.Add("ID")
dt.Columns.Add("Time")
[CODE]...
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Jan 7, 2010
anyone know how to do this? build datasource(datatable) with values from a datagrid.
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Jun 16, 2009
I have create a table called Employee and tried to create a link from DataGrid (in ASP .NET ) control to the datasource. I have created and added the connections tring as all using the wizard. When I need to check generate insert, update, delete statements and pessimistic concurrency the check boxes displayed "disabled".
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Sep 25, 2011
When I update a record at table [Product] with the integer that stands for [Supplier Name] from joined table [Suppliers], this does not appear in my datagridview. Instead, I have to reload the table to dataset to make it visible. What about datarelation? Is it better that loading a joined table over the dataset? Note that I have never dealed with datarelations before.. How can I make a datagrid column to show "Supplier Name" instead of recordID that represents this supplier?
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Mar 27, 2008
I'm trying to make my datagrids datasource change when you select a particular item from a drop down menu but all I get is blank cells! any ideas? I don't think it is changing the colums property automatically either.
If chooseType.Text = "Add / Edit Players" Then
updateDB.DataSource = PlayersBindingSource
[code].....
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Jan 5, 2010
Is there a way to check whether a datagrid is assigned a datsource. How can I distinguish a unassigned datagrid from a datagrid that is assigned a datasource.
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Feb 17, 2012
It's my first time playing with the DataGridView properly and I've hit a little snag...I need to display data in a DataGridView for ease of viewing, and I have a list of all the data. It's a list (of a structure), and I've got no idea how to do this. I can set the datasource as the list, but that doesn't work. I've read up on the topic but don't really understand. Am I forced to use classes not structures in this instance?
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Jan 30, 2011
I use vb.net and windows form and sqlserver
I added Data Source(Microsoft SQL Server (SqlClient)) to my project. and now I need to change it to ODBC Data Source .
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Jun 17, 2012
i have a dgv populated from a csv file and i am filtering the dgv further and exporting it to the excel. But my problem is it is exporting all the values from the original dgv not from the filtered dgv. I am using one dgv and 2 buttons in my form. When I click the button 1 my dgv gets filtered . when i click the button 2 it must export the filterd dgv to excel but it is not in a way as it is supposed to be instead it exports the unfilterd dgv (all the values from the dgv)
[Code]...
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Jun 11, 2009
here is what i'm stuck with i have datagridview and datasource is dataset. Everything is fine no problem.
It has 3 coloumns, ID, Name, City. ID is PK Now I have rowfilter on dataset like this
dataset.tables(0).defaultview.rowfilter = "Name Like '" + txtName.text + "%'" everything is fine till here. it show selected records. now, i have another text box on form which ask for id and search id in datagrid like this dim dr as datarow = dataset.tables(0).findbyid(cint(txtId.text)
in above case if id found then it will dr with row. which is fine. the question is how i can find if current row is in list or not because of filter on dataset.table
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Mar 1, 2010
I am using axspreadsheet to view and edit excel files. In that I need to get the auto filtered (only visible) rows from axspreadsheet.
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Jul 26, 2010
i have one fill box and 2 radiobuttons in my form. I also have a database in which I have a table with names of workers, their smoking and marital status. My aim is to choose from radio button 1 if worker is smoking (yes or no) and radio button 2 if the worker is married (again yes or no). According to the selection, the list of workers matching with the selected criterias should be shown in the listbox1. Here is the code I wrote and I do not know how to complete or correct:
[Code]...
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May 7, 2009
Code:
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
If Me.ComboBox1.SelectedIndex >= 0 Then
' get new owner owner = Me.ComboBox1.SelectedItem
' apply filter to C1Schedule's data source (show only current owner's appointments)
[Code] ....
I have it filtering results based on which doctor I select. I also have a "SHOW ALL" item, how would I get it to actually show all the appointments regardless of doctor? Put it all in an if/then statement and check to see if the selected index of the drop down list is the SHOW ALL option? I'm not sure how to programmatically get it to show all though. It actually shows all the appointments (without filtering) as soon as it's opened, it only filters when I want I just need it to go back to unfiltered when I pick SELECT ALL.
I tried every combo I could think of to get it not to filter the results when I select SHOW ALL, but none have worked.
If Me.ComboBox1.SelectedIndex >= 0 Thenfilterelseme.ComboBox1.SelectedIndex = -1
If Me.ComboBox1.SelectedIndex >= 1 Thenfilterelseme.ComboBox1.SelectedIndex = -1
I don't know how to get it back to -1. The drop down list is populated with three doctors, and I added the string SHOW ALL, so as far as I know the index starts at 0 and would start with SHOW ALL. I tried an ElseIf me.combobox1.selectedindex = 0 then me.combobox1.selectedindex = -1 too and that doesn't work either.
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Oct 17, 2009
I'm using a bindingsource to bind a dataset to a datagridview. Normally I would use a dataview to sort and filter the data, but since a bindingsource can also do this, I figured I would not need a dataview anymore. But I'm not sure how to get certain data from the filtered source. I know I can get it from the datagridview, but I'm not loading the entire dataset into the datagridview. I guess I could and then just make the columns I don't need be invisible. Or I could go ahead and use a dataview also, but that seems redundant. I was wondering if there is an equivalent to this code to get a specific item from a dataview, but pulling it from the bindingsource:
tbCode.Text = dv.Item(m_recno).Item("CodeNo")
As long as I'm not filtering the data, I can get it from the dataset, but when it's filtered, the indexes won't match.
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Apr 27, 2011
I have a datagridview in my application with numeric columns and date column. This datagridview is filtered by date. I want a label to show the sum of the filtered rows.
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May 7, 2009
[Code]...
I don't know how to get it back to -1. The drop down list is populated with three doctors, and I added the string SHOW ALL, so as far as I know the index starts at 0 and would start with SHOW ALL. I tried an ElseIf me.combobox1.selectedindex = 0 then me.combobox1.selectedindex = -1 too and that doesn't work either, so I'm obviously doing something wrong there.
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Mar 19, 2012
A brief about the foundation of the program: I have created a VB2010 Windows Form application that connects to a Microsoft Access database. A datagridview is used to show all the data of the database. Then, a filter is used to filter the dataview (the BindingSource actually) and show the filtered db's data.
Let's say this is how I filter my BindingSource:
MyBindingSource.Filter = " price > '110' "
This would cause the dataGridView to filter the data (correctly), and let's say 10 rows are now displayed. What I am trying to do now is to get the sum of the values of one column of these new data. For example each of the 10 rows have a 'price' column which contains a double value. I would need the sum of these *filtered* values.
I found on the Internet that I may be able to transform the BindingSource into a DataTable and I could, but now I don't know how to access the values inside this!
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Feb 4, 2009
[Code] It captures a frame of LiveVideo every some miliseconds and shows them simulating the filtered video, this is working fine but I don't know how to copy the filtered frame from VidProce to a new picturebox, I tried this but doesn't works X.Image = VidProce.Image. any idea or another way to filter the pictures?
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May 14, 2009
Im writing a simple VB program that connects to an oracle DB which retreives and inserts data to a table I created.[code].....
I want to be able to search through a table I have created to store all the information.Rather than just searching for one variable which would be easy to do, I want to give the user the option to filter out the search from the form.So say the user hits "Find", they would be given access to 10 comboboxes, they would select the information they want to search for (They do not have to select every box) and then click "Do Find".Then the form would display all the results of the query in the form.
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Oct 31, 2010
I have a filtered bindingsource bound to a datagrid. The datagrid fills and displays the data correctly based on the filter criteria.
The problem comes when I try to access the data directly from the program. It returns data, but only as if the filter wasn't there at all. [code]...
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