Filter Datagridview Using Column Names In Program?
Apr 26, 2012I have a datagridview with column names as dates.[code]....
View 8 RepliesI have a datagridview with column names as dates.[code]....
View 8 RepliesWith 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;")
[Code] .....
I have a csv file and I import it to datagridview. Now I filter it using 2 datetimepickers. One for start and other for end.When click it must loop through the column names and must display only the columns which matches start date, range of columns between start and end date,enddate. please see the image attached.First image shows the datagridview when loaded from csv.second shows the desired output when filtered using datetimepickers.
View 1 RepliesI 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?
I 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.
Apparently, an unbound datagridview control cannot be filled at design time, so I have to create rows + fill cells through code. Currently, I use the following type of code to refer to cells:
[Code]...
In 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 RepliesI have a DataGridView which populates from an SQL query just fine in default mode
using these table names
[firstName] [varchar](20) NOT NULL,
[lastName] [varchar](20) NOT NULL,
[code]....
I have edited the column headers and set the column names to the same values as my table names yet the data is not showing in form load I have set datagridview.AutoGenerateColumns = False I know the data is there if I delete datagridview.AutoGenerateColumns = False then the data is shown with the default headings?
I have a dataset along with code for validation. When I use a datagridview and setting the EditMode to OnEnter I get the red exclamations telling me that I have an error when this is needed. This works all good. when I click the save button on the BindingNavigator, the application saves the record even when this validation is showing. How do I filter up this validation code through a datagridview and stop the program saving the data? If you need the code for more information, I will add this to the forum.
View 2 RepliesI 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].....
I have a window based datagridview with examdate as one the editable datetime column .Now i want user to update or change the date to a fully valid format(dd:mm:yyyy) just on pressing enter key within the datagridview. A popup message must appear when user enter wrong date.
View 1 RepliesHow to add a checkbox column at first column of datagridview including column header?After adding, how to code to "check all" or "uncheck all"?
View 27 Repliesi recently posted a code that i had that i needed assistance for and it was solved it was for displaying all tables in a database.but now i have this code for showing all column names in a table i was in the process of turning it from oledb to sqlclient. GetOLedbSchema can be turned to getschema but when it comes to OleDbSchemaGuid
Public Shared Function getAllColumnNames(ByVal tblname As String) As String()
Dim com As New SqlCommand
Dim con As SqlConnection
[Code].....
i have this code for showing all column names in a table i was in the process of turning it from oledb to sqlclient. GetOLedbSchema can be turned to getschema but when it comes to OleDbSchemaGuid
Public Shared Function getAllColumnNames(ByVal tblname As String) As String()
Dim com As New SqlCommand
Dim con As SqlConnection
[Code]......
The name "Debit" is not permitted in this context. Valid expressions are constants, constant expressions, and (in some contexts) variables. Column names are not permitted.
View 5 RepliesI need to limit the amount of columns being returned from a datatable from 14 to 5 or 6. Date, Hour and 3 to 4 decimal columns. Is it possible to do something like a SQL 'Like' to specify which columns I want?
View 8 RepliesI need to get column names from SqlCommand or SqlDataReader.[code]...
View 1 RepliesSo i create a datatable from a table i can't directly view(i.e. using sql server management). I want to find the column names that are in the datatable, what would be the correct way do this?
View 3 RepliesI have the following code to get the column names from my Microsoft Access database.THE PROBLEM is that the stupid thing orders it alphabetically for me. How do I get it to put the columns in order the way they are in the database?[code]I've also tried a different approach with a string array and for loop to "make it" go to the beginning, but proves my point that its stupid enough to order it for me.
View 3 RepliesI have to create a report that lists tests that a student has taken and how they answered each question...the column header layout (roughly) looks like:
Test #1 1 2 3 4 5 Test #2 1 2 3 4 5
TestA A B C D E TestB C C B C E
The problem is that the Gridview doesn't seem to like repetitive column names and is renaming the second set of Question #s to something else.
I have a table in a Access Database that I'm loading into a VB.NET program and I want a way to get the name of each of the columns into a list of Strings. Googling has shown that this is much easier with a SQL database, but that doing so in Access is much more difficult. I came across this question Is there a query that will return all of the column names in a Microsoft Access table? Which gives a way to do it, but when I try the code it just populates my list with a bunch of "System.Collections.Generic.List'1[System.String]"
This is my adapted code.
Public Function GetColumns(ByRef database As String, ByRef table_name As String, ByRef columns As List(Of String)) As Integer
Dim com As OleDbConnection
Try
com = New OleDbConnection(database)
com.Open()
[Code] .....
My for each loop isn't printing the right string. Should be Console.WriteLine(holding)
I have A database in access2007 I want retrieve column names with sql query in my project I write below code: "select column_name from information_schema.columns where table_name ='table 1' ORDER BY ORDINAL_POSITION" but display error : Could not find file 'D:ProjectsTapco_ECMTapco_ECMTapco_ECMinDebuginformation_schema.mdb'.
View 3 RepliesIs it possible to get the column names from a DataGridViewRow object?
View 4 RepliesHow 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...
My question is how best to avoid SQL Injection with the method I am currently using.EDIT (Reasoning): There are many of columns in a number of tables (a number which grows (only) and is maintained elsewhere). I need a method of allowing the user to decide which (predefined) column they want to query (and if necessary apply string functions to). The query itself is far too complex for the user to write themselves, nor do they have access to the db. There are 1000's of users with varying requirements and I need to remain as flexible as possible - I shouldn't have to revisit the code unless the main query needs to change - Also, there is no way of knowing what conditions the user will need to use
View 2 RepliesI am struggling to show different views of gridview with database values. Here is my requirement. Database Table:I need to show one drop downlist with three values 1,2,3. If user selects 3 i Need to show a grid like belowAge,AnnualSales and Assortment are names which are coming dynamically from database.
View 2 RepliesI have filled a datagridview with a dataset using the following code.
Code Snippet
I'm just a frustrated noob trying to get past my first DB Program. My goal is to get relational data from different tables all ordered by a certain field..Ive noticed early on that i cannot select a column when its name has a space.[code]Now the statement i want to use is sql = "SELECT [PT.Chart Number],[PT.Last Name],[CA.Case Number] FROM Table1 AS PT INNER JOIN Table2 AS CA ON PT.Chart Number = CA.Chart Number ORDER BY PT.Chart Number"..When i Debug i get the same type of error ("... Can't find column name PT.Chart... ")I'm new to sql so i dont know if my syntax is off.
View 4 RepliesHow do i edit the column header of the GridView control on a web form? I have added a Table to DataSource as:
Me.gvSearchBrandList.DataSource = ds.Tables(0)
in here "gvSearchBrandList" GridView control But the GridView control display the column headers of the Table in the database. But how do i edit those column name in the GridView?
I have mysql database with one table , and I want to show the columns' names re;taed to the table in combobox in vb 2005
this is my mysql command :
SQL1 = " select column_name from information_schema.columns where table_name='others'; "
this is my code after execute the command and store the data set in variable ( DS ) which its type is "DataSet " :
If DS.Tables(0).Columns.Count > 0 Then
For j As Integer = 0 To DS.Tables(0).Rows.Count - 1
list1.Items.Add(DS.Tables(0).Rows(0).ToString)
Next (j)
End If