VS 2008 DataTable DefaultView Filter?

Mar 31, 2010

Is there anyway to filter a DefaultView with a LIKE-type operator as in MySQL?I want to be able to make it so that in my program, a person can type in a textbox and as they type, the list is refiltered based on what is typed, but I want it to match anything in the string of text, not just starting from the beginning or an exact match.

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VS 2005 Datatable Vs Dataview - Apply A Filter To The Defaultview.rowfilter Property Of That Datatable

Mar 15, 2010

I have a datatable and I apply a filter to the defaultview.rowfilter property of that datatable. If I then loop through the rows collection of the datatable, will I only be able to see those rows that the filter applies to, or will it loop through all the rows?

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VS 2010 Sorting A DataTable DefaultView?

Mar 23, 2011

I am attemping to bubble sort a DataTable.DefaultView (column has hex Integers), problem is that my code isnt working. I think the way I am swapping the rows is not actually happening in the Devault View, but ony happening at the local variables drv1 & drv2.

[Code]...

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2005 - Unable To Get Distinct Records From Datatable Using DefaultView.ToTable?

Mar 14, 2012

I am building a custom search control in VB.NET and came across a problem getting distinct records into my datagridview. I want to bring exact matches back first so I run 2 of the same query on the same table with a slight difference:

select ... like "code%"
select ... like "%code%"

I have a datatable that I need to get distinct records from; I am append records from a sql query to the end of the datatable so I cannot use a union in sql to return the dataset (I want to preserve the order which the rows are added) I have been using this which is working fine for 2 fields:

dt2 = dt.DefaultView.ToTable(True, "Code", "Name")

But when I have 3 (or more) fields I get duplicates ONLY for the row I am querying:

dt2 = dt.DefaultView.ToTable(True, "Code", "Name", "Initial")
select ... like "initial%"
select ... like "%intial%"

I am clearing the datagridview.source before rebuilding this. Is there a way to get the distinct rows this way or should I just build something myself to remove the duplicates from the second datatable before appending them to the new table?

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VS 2008 : DataTable Filter To Another DataTable?

Mar 11, 2010

i have a datatable with some data, i need to select some of the data, and put that data in a new datatable.

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VS 2008 Using LIKE In DataTable Filter?

Nov 9, 2011

I am writing part of a function that tries to search for a username in a list in a rather broad way (last resort). It seems that LIKE does not like trying to match only the first and last characters.

strCriteria = "somename"
drFilter = tblUsers.Select("User LIKE '" & Strings.Left(strCriteria, 1) & "%" & Strings.Right(strCriteria, 1) & "'")

[code]....

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VS 2008 Sorting A Datatable Before Filter?

May 15, 2010

What i am doing is to enable a user to specify in a combobox on a form a threshold (integer). On a button click the code steps through a datatable until the cumilative value of a field in the records row are equal or dont exceed the figure specified. It then selects these rows and presents them in a datgridview in another form. This all works just fine.

What i am struggling with is undertaking a sort on another field before it starts the filter part. It appears to revert to the default order. Here is my

If ComboBox1.Text = "Co2 saving in tonnes" Then
Dim table As New DataTable
Dim limit As Integer = ComboBox2.Text ' Your threshold

[Code].....

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Asp.net - DataTable Filter Mystery?

Apr 12, 2010

In the below code, I create a DataTable and filter it. When I use filter1, everything works as expected.When I use filter2, everything works as expected only if the SubsectionAmount variable is less than 10. As soon as I set SubsectionAmount=10, the dr2 array returns Nothing.I can't find what is wrong. Here is the code:

Imports System.Data
Partial Class FilterTest
Inherits System.Web.UI.Page[code]..

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Filter Datatable Through Combobox?

Jun 22, 2010

I want to filter the data that's being displayed to my datagrid once I click the combobox and select a specific value,the selected value will be the item to filter the data that I needed to be displayed in the datagrid.. I'm using a datatable,a combobox and a datagrid..here's my code

Private Sub cboView_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles cboView.Click
dt = New DataTable
sda = New SqlDataAdapter("SELECT DISTINCT KPIPOSTCODE FROM KKPIGROUP", sqlcon)
sda.Fill(dt)

[code].....

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How To Correctly Filter A Datatable

Jun 17, 2010

[code]When I call da.fill I am inserting all records from my query. I was then hoping to filter them to display only those where the GroupingID is equal to 0. When I run the above code. I am presented with all the data, the filter did not work. Please can you tell me how to get this working correctly.

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Sql - DataTable.Select Filter?

Dec 28, 2010

I need filter for multiple values on one column using the DataTable.Select method.

Dim totalFatal As Integer =
m_DataSet.Tables("tblAccidentNonMotorist").Select(String.Format("[AccidentNumber] = '{0}' AND CONTAINS([InjuryClass], '"01" OR "02" OR "03"'", accidentNumber)).Length

[code].....

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Filter Datatable Using An Array Of Values?

Dec 14, 2010

I have a datatable called dt which includes a column called type.I have a string array called typestringarray with about 15 members

I want to create a new datatable from the rows where type is a member of typestringarray[code]...

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Multiple Selection On A Checkboxlist To Filter A Datatable .net?

Feb 27, 2012

I have a datatable loaded from a database. I bind the datatable to a gridview on page_load. Now I want to filter the gridview by a user selection so I made a checkboxlist and wrote some code as follow at CheckBoxList1_SelectedIndexChanged

[Code]...

With this code above, it can filter if there is only one selection on the checkboxlist. I try to loop the checkboxlist myself but always ended up in errors. Hope someone can help me out to make this work.

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View Previous Datatable After Filter Applied?

Mar 16, 2011

Code is:

Private Sub PatientFields()
txtFirstName.Text = pa.Tables(0).Rows(intcurrentindex).Item("Forename").ToString()
txtLastName.Text = pa.Tables(0).Rows(intcurrentindex).Item("Surname").ToString()

[Code]....

Once the search is executed I want to be able to click "refresh" and the original table is then shown in the datagridview. If I try adding after the search sub is completed:

table.DefaultView.RowFilter = Nothing

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VS 2010 Filter Data With DataTable And DataView?

Feb 15, 2012

I'm loading a DataGridView from a DataView which collects data from a DataTable. I use the DataView to filter, this is the

Dim dv As New DataView
dv = DataSet4.Tables("TABLA1").DefaultView
dv.RowFilter = "propietario='" + NombrePro + "'"

[code].....

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VS 2010 Using LINQ To Filter Data From A Datatable?

Sep 1, 2010

I am wondering if it is possible to filter data from a datatable.Sample datatable

Quote:
Sno CatID Nos
1 XYZ 25

[code].....

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VS 2008 : Filter The Results Of A Datagridviw Using The Bindingsource.filter Method?

Mar 20, 2009

I am trying to filter the results of a datagridviw using the bindingsource.filter method.

Dim filters(2) As String
...
If Me.txtPartIDFilter.Text = "" Then

[code]....

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.

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C# - Enable The User To Apply A Custom Filter To A System.Data.DataTable?

Feb 16, 2012

I 'd like to enable the user to apply a custom filter to a System.Data.DataTable.At the moment I have a very simple function like this:

Dim result = dataTable.Select(txtUserInput.Text)

With the filtered results I'd like to do further operations(e.g. Database Update/Delete).Is an sql injection protection needed or is the "Select" function secure?


//Edit:Can the "select" function be abused to manipulate any data in the datatable, execute code, ...? If the only danger is that this function can return to much/to less data there is no problem. But if the data in the dataset gets corrupted it's a real problem.

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'DefaultView' Is Not A Member Of 'System.Web.UI.WebControl?

May 23, 2009

I have an error on this code what is the 'DefaultView' is not a member of bookroom.aspx.vb code

Partial Class BookRoom
Inherits System.Web.UI.Page
Dim SelectedDates As System.Collections.ArrayList

[code].....

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Have A Column In The Datatable Called Amount And A Textbox Acting As The Filter Called Say Maxamount To Set It?

Feb 9, 2011

i 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?

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Calculate Variance Of A Coloum In My Datatable Object - Tabletable.compute("Var()", Filter )

May 14, 2009

I want to calculate variance of a col in my datatable object. If i apply datatable.compute(Var(...)), i gives a negative result. Variance can't be negative. And it I just apply it to half of the data, it works fine. Does datatable.compute has a limited capacity?

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VS 2008 Nesting A Datatable Inside A Datatable?

Mar 16, 2011

Is there a way to nest a datatable into another datatable? I know you can do this with gridviews but thats not what I'm looking for.

Also, I don't want to merge the datatables. What I'm trying to do is have a datatable with 2 columns and each column containing different datatables.

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IFF Is Not Null Query - Filter A Sql Db With Many Filter Criteria Which Inert The User In Textboxes

Feb 15, 2012

I m trying to filter a sql db with many filter criteria which inert the user in textboxes .. i ve tryed this query

[Code]...

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Binding Source.filter - Filter My Access Database

Oct 10, 2011

I'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()

[CODE]...

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Databinding.filter - Filter Date And Also Time (shortime)

Sep 20, 2010

i 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 & "'"

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Datagridview - Use Filter With LIKE Clause When The Filter Text Contains %?

Feb 13, 2012

I 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

[Code].....

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Sql Server - Filter Row And Put It In A Textbox And Filter Another Row In Another Text Box?

Mar 16, 2012

i want to filter row and put it in a textbox and filter another row in another text box vb.

ex.
ID--------- Date -------- msg_num ------------ Message <<
10001 -- 01/01/2012 ------ msg1 ------------- Blah! Blah![code].....

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VS 2008 BindingSource Filter?

Jun 12, 2011

Private Sub LoadMovieDetails()
Try
Dim cmd As SqlCeCommand

[code].....

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VS 2008 Can't Filter The Text

Oct 31, 2010

i have this text

[Code]....

3d 04h also this could be random, anything. thats why i cant filter it <SPAN>(Nov 03, 2010</SPAN><SPAN class=vi-is1-t>17:23:00 PDT)</SPAN>

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VS 2008 How To Filter 2 Columns

Jun 13, 2011

I can filter BindingSource base on 2 columns. Example data starting with "s" in column A & column B must be filtered.

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