Perform Calculation On A Column's Context In A Filter?
Mar 24, 2009how to do an aggregate function on a column in a bindingsources filterExample
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VS 2010 Perform Calculation After User Input On DataGridView?
Oct 6, 2011I have DataTable, and is bound to DataGridView. So, when the user inputs some values in 4 columns, it would calculate the sum and put it in the last 2nd last column.
Here's the code that I'm experimenting:
vb.net
Private Sub DataGridView1_RowLeave(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.RowLeave
Dim i As Integer
Dim intTotal As Integer = 0
For i = 5 To DataGridView1.Columns.Count - 3
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So, basically it should sum up certain columns when the user enters numbers into it and then display it in the last column.
Asp.net - Programatically Removing A Header Context Menu Filter From RadGrid?
Jul 13, 2010I've got a repeater I've bound to column names that are filtered, as they're applied (using sessions currently, I might change this to loop through the columns looking for filters now that I really know how the grid works).
I've got a button next to each filtered column name that is to remove the filter from the RadGrid.
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Calculation In Textbox - X Value For Column And Y For Row
Jun 12, 2009In my form I have a text box for user to enter the number of column and row. And I also have a text box to enter the first X value and Y value. Now what I want to do is if user enter 2 for row and 10 for column then now I will have two rows with 10 column. The X value is for column and Y value is for row.
It will look like this
**********
**********
When the user enter the first X and Y value. For next X and Y value i must plus the original value with 2.54.
So my X1=TextBox1.Text
Y1=TextBox2.text
this values are input by user.
So
X2=TextBox1.text + 2.54
X3=X2 + 2.54.
and so onn. Same apply for Y
Let say user input are X=100 and Y=100
The value for first * is X= 100 and Y=100
Second *X=102.54 and Y= 100............. and so on
For 11th * X=10th *value + 2.54 Y= 100+2.54 and so on
The row and column is not same always it depends on user..
Calculation Column Totals DataGridView, Cannot Cast From DBNull To Other Type?
Jun 30, 2010I've spent the last three day on this. Hope someone can shed some light on the problem.I have a datagridview I which to total a column and place in a textbox. with the coding below I do get the first number and it is place correctly in the textbox but when I complete the data row and move to the next, I receive the following error. "object cannot be cast from DBNull to other type." Read and tried a lot of ideas on line , could not get any of them to work.
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Failure is not an option! But sometime you need to look at those option.
Perform An Action On Clicking A Custom Context Menu Created In Excel Using Excel Add-In Created With Visual Studio 2010?
Apr 14, 2012I am creating an Excel Add-In using Visual Studio 2010. My intention was to add a context menu to a cell and perform some action on the selected cell or cells. Here is the code I have got as of now
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Filter With Multiple Column And One Statement
Dec 1, 2010How do I combine the following two similar statement into one. They are similar in the sense that they both get input from the same textbox:
Me.ReportsQueryBindingSource.Filter = "ParkingSpaceID = '" & txtSearch.Text & "'"
Me.ReportsQueryBindingSource.Filter = "StudentID = '" & txtSearch.Text & "'"
I have tried couple :
Me.ReportsQueryBindingSource.Filter = "StudentID = '" & txtSearch.Text & "'" Or "ParkingSpaceID ='"& txtSearch.Text & "'"
Me.ReportsQueryBindingSource.Filter = "StudentID Or "ParkingSpaceID ='"& txtSearch.Text & "'"
......just none of them works...
From Excel To DataGridView And Filter Column
Feb 11, 2012With this code I import Excel to a datagridview , works fine. But how do I filter a Column lets say "Number" ? with a textbox
Dim MyConnection As System.Data.OleDb.OleDbConnection
Dim DtSet As System.Data.DataSet
Dim MyCommand As System.Data.OleDb.OleDbDataAdapter
MyConnection = New System.Data.OleDb.OleDbConnection("provider=Microsoft.Jet.OLEDB.4.0;Data Source='C:stof.xls';Extended Properties=Excel 8.0;")
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Filter And Only Show The Rows With Null In That Column?
Sep 29, 2010I've using binding source filter to filter the data i see in the datagrid based on the value of the cell (this is in relation to the checkstate of a checkbox column), so far so good
InvBindingSource.Filter = "Saved = '1'"
what if i wanted to filter and only show the rows with null in that column?
Filter Column In Datagridview Then Show At Combobox?
Oct 24, 2011I had a datagridview which connect to oracle database. I want to filter one of the column of the datagridview.
Then the filter value will show it in the combobox.
Any suggestion to filter it and show at combobox?
Filter Datagridview Using Column Names In Program?
Apr 26, 2012I have a datagridview with column names as dates.[code]....
View 8 RepliesSelect Column With Filter Criteria Within A Row In A .Net DataSet?
Jul 27, 2011I'm writing an app for someone where I am pulling in work orders table information. The information includes: worknum, fname, lname, customername, description, etc. I do not plan to update the data in this table, only to read from it.I'd like to display a combo box for the work order numbers. The user would start typing the information for the work order in and it would autocomplete based on what's in the list. As work orders are displayed in the combo box, I want to update the data in text boxes representing the various fields.
I'm thinking rather than query the database several times, it would be a good idea to create a DataSet with information for the work orders table within the last x months then query the data from that dataset. I know there is a DataSet.Select method, but it looks like it returns the entire row. Is it possible to retrieve just a column of distinct values? For example, I'd like to do a select statement similar to this:
SELECT worknum FROM {WorkOrderDataSet} WHERE date >'{today-x}
The first part in curly brackets is meant to represent the work order dataset I create when first importing the data from Access. The second part in curly brackets will be replaced with variable data to represent a date to reference. I also don't think I'll need distinct because the workorder is unique (edit: is a primary key)Is it possible to retrieve just a column of distinct values from a DataSet with multiple columns? How do I do this?
VS 2008 How To Filter For 11 / 2010 In Date Column
Nov 26, 2010i would like to filter a datagrid thats bound.i have the value as string 11/2010 wich is datevalue [code]i want to filter the dates that contain "11/2010" this value.obviously the result will be
-01/11/2010
-05/11/2010
-4/11/2010
[2008] How To Filter Datagridview With Combobox Column
Jan 19, 2009I have a datagridview and a bindingsource. The first column is a comboboxcolumn which is bound to a table field and then the rest of the items are populated from another datatable. What I have on my other forms is a textbox called txtfilter and on the textchanged event I have this
Me.ProductBindingSource.Filter = "BatchNo LIKE '" & txtFilter.Text & "*'" that works great. Now I want to filter the combobox columns just like this.
VS 2005 Store A Calculation To Use Later And Obtain A New Calculation
Dec 19, 2009I need to store a calculation to use later and obtain a new calculation
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VS 2010 : Pass Combobox Value In Query Builder Filter Column?
Jun 17, 2011I'm develloping a small application over na Access 2007 database. how can i pass the value of a combobox to a query being built with the query builder tool?If I use ? in the Filter column I�m prompted to enter the value but what I need is to pass the value of a combobox in a form. I tried to use:
HTML
=MyForm.MycomboBox.Value
but it is ignored, interpreted as the value to be filtered.
Perform A Sum Of Individual Column Of 2d Array And Send The Result To 2d Or 1d Array Or Datagridview?
Mar 12, 2012I have a 2d array of data that I have performed the sum of the individual column of the 2d array. I want to send the results to a datagridview and also will like to have the result as a 1d or 2d array.
Below is sample of my code
Dim Array1(,) as double
Array1(0, 0) = 5
Array1(0, 1) = 7
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VS 2005 Filter The First Column Of A Listview Which Holds Date Values Using Add Days Method
Mar 18, 2009I am trying to filter the first column of a listview which holds date values. If the date is less than 21 days from today it deletes the row from the listview.
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When Dependant Column In DatagridView Then How To Filter Data Because Privious Selected Items Are Disappear
Nov 15, 2011In my datagridview there are two dependent columns, one is category and the other is items. So I want to filter my item column list as per selected category. But the problem is that when I change the category wise data to datasource of items combobox, previous selected items names disappear because previous items is not in current datasource.
View 1 RepliesError: The CLR Has Been Unable To Transition From COM Context 0x4cefd8 To COM Context 0x4cf148 For 60 Seconds
Aug 20, 2009When bulk renaming files (14000 of them) i get this error: The CLR has been unable to transition from COM context 0x4cefd8 to COM context 0x4cf148 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.
My code is as follows:
Private Sub frmTest_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim asd As List(Of String) = FileIO.FileSystem.GetFiles("D:Music").ToList
Dim rs As New ADODB.RecordSet("SELECT * FROM Songs", My.Settings.Files_Database__Connection)
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Filter The Data In The Date Column To Show Only The Records That Don't Have A Date Entered Into The Field?
May 13, 2010I have an access form that shows a data table. when the form is opened, I want to filter the data in the date column to show only the records that don't have a date entered into the field.
View 8 RepliesHave A Column In The Datatable Called Amount And A Textbox Acting As The Filter Called Say Maxamount To Set It?
Feb 9, 2011i was wondering if it possible to have a condition where lets say you have a column in the datatable called amount and a textbox acting as the filter called say maxamount to set it so the rowfilter when filtering the table will sum the number in the amount column until the number in maxamount is met, then stop and only return the rows where the total sum of the amount column is equal or less than the maxamount value, so i guess if the next row takes us over the maxamount it discards this row and returns the rows previous to it. is this possible using datagridview rowfilter or should i be loooking elsewhere to achieve this?
View 4 RepliesUnable To Write In A TextBox And Hit A Search Button To Search The Batch_Number Column And Filter?
Dec 15, 2009I have a datagridview with 2 columns, 1 is Batch_Number and another is Existing_Stock, there is about 6000 rows.My question is, I want to be able to write in a TextBox and hit a Search Button to search the Batch_Number column and filter out or highlight the row with the matching number to see the Existing_Stock
View 9 RepliesDataColumn.Expression Count - Filter On The Day, Count The Rows And Then Populate This Added Column With The Result?
Nov 2, 2010I have added a column to a Datatable called CallsPerDay which is there to tell me how many telephone calls have been made on a particular day or days.Is there a datacolumn.expression which will allow me to Filter on the day, count the rows and then populate this added column with the result.
View 1 RepliesMds - Error "The CLR Has Been Unable To Transition From COM Context 0x3dc190 To COM Context 0x3dc300 For 60 Seconds"
Jun 8, 2011I got this message because of a long process: ContextSwitchDeadlock was detected
Message: The CLR has been unable to transition from COM context 0x3dc190 to COM context 0x3dc300 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time.
To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations. I've poked around on the internet and on a forum, someone suggested to use application.doevents(). I did that and the messaged goes away. In an earlier thread a member wrote that using application.doevents rarely was used appropriately. Is my situation a proper usage of application.doevents or is there something else I should be doing?
IFF Is Not Null Query - Filter A Sql Db With Many Filter Criteria Which Inert The User In Textboxes
Feb 15, 2012I m trying to filter a sql db with many filter criteria which inert the user in textboxes .. i ve tryed this query
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VS 2008 : Filter The Results Of A Datagridviw Using The Bindingsource.filter Method?
Mar 20, 2009I am trying to filter the results of a datagridviw using the bindingsource.filter method.
Dim filters(2) As String
...
If Me.txtPartIDFilter.Text = "" Then
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The issue is in the last line. ID_Part is an Int64 data type filters(0) is a string so the system returns a "Can't perform 'Like' operation on System.Int64 and System.String" error message.As you can see I tried converting the data type, but that failed since it is encased in String.Format()- it's going to be a string no matter what, I suppose.It's almost 1:00 a.m. so I'm not firing on all cylinders.
Binding Source.filter - Filter My Access Database
Oct 10, 2011I'm trying to filter my access database and when I "search" by name, it works, but when I search by policy number it doesn't seem to work.
Here's my code:
If RadioButton3.Checked = True Then
Form3.Show()
Me.Close()
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Databinding.filter - Filter Date And Also Time (shortime)
Sep 20, 2010i want to filter date and also time (shortime) for example if Datum.hour="8:15" andalso Datum.day of week "Saturday"or "Monday" now i can only filter date ... this is my filterline objbindingsource.Filter = "Datum > = '" & Dtp1.Value.Date & "'"
View 5 RepliesDatagridview - Use Filter With LIKE Clause When The Filter Text Contains %?
Feb 13, 2012I want to filter a text in all columns in a datagridview. So I use Like % in the filter text. However, I found that the text(strFilter in my code) may contain % sometimes. So it have a syntax error. How can I use filter with like clause when the filter text contains %?
Private Sub PassFilter(ByRef dataTable As DataTable, ByVal strFilter As String)
Try
Dim dataview As DataView = dataTable.DefaultView
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