Predictive Text - How To Display Records From Database Into DropdownList
Mar 30, 2011
How to query a record in vb.net using combo or textbox via linq to sql like the search engine? Just like when you search in google or youtube, once you typed in the initial string on the textbox or combo box it will show a drop-down list. I tried to use it in my application using linq method but the problem is it would duplicate on the first string that you entered on the dropdownlist if that record exist on your database after you press the space key. I used the code below which duplicates the records on the drop-down list when you type in your string after the space key.
I just want it to be like in any search engine that when you type in the string or your initial string, it will display on the drop-down list all the records from the database that contains the string you entered without duplication. In my case, I'm trying to query a name from my database. This is how it should work, For example, if you type an initial string in the textbox or combo box a named 'Mark', it should display all the names from the database containing 'Mark' into the drop-down list before it changes into its final string that you entered.
Here is the codes I used:
Private Sub ComboBox1_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles
ComboBox1.TextChanged
Dim db As New MultipleDatabaseOperationDataContext
Dim search As String
search = ComboBox1.Text
[Code] .....
I am trying to display the content of the text box according the number of records in the database. When i do it manually it works but when i do it through the "for" loop i am confused. my code is as below
For i = 0 To total_rec fname1.Text = ds.Tables("roster").Rows(total_rec).Item("FirstName") lname1.Text = ds.Tables("roster").Rows(total_rec).Item("LastName") Next
Now i want to change the index of "fname1" some thing like "fname(total_rec)" but it does not work
I have a combobox and have 10 items in it (Name of countries). I want to make the users life easy so that when they click inside the combobox and start writing then the text box will start predicting the rest of the text in the combo box. i.e. if i start writing "U" then the textbox will start predicting "UK" as "UK" is already a pre-populated item in the combobox.
How can I restrict the user from selecting only values within the pre-populated items of the combobox. Bearing in mind the combobox allows the user to write inside it (for the benefit of predictive text). But lets say there are values of UK, USA then I dont want the combobox to accept the value of "Ukraine" when the user clicks away from the combobox.
i have this problem on retrieve 3 records from database.i did it in a way that i have a few button.when i press on one of the button which have a value of bee then it will go into the database and search for bee.it will return me the result on bee at the same time it will also return both top and bottom record of bee.
I have a form which contains two Time and Date Picker as StartDate and EndDate. I wish to search record from MS Access database within the date range (StartDate and EndDate) and then display the result in ListView.
I have learned from (jmcilhinney) that I have made a mistake somewhere, but I am newbie in VB, so please rectify the error and re-post the corrected code for me indicating the line where I have made mistake.
i am using a richtext box in my vb.net application and i need to dispaly top ten records from the database in it.but it is displaying only 1 record.what to do?
I am using listview. i want to search using textbox records from the database and display the searched records in listview. i read some post here with same/like mine but they're using datagrid.
How to query a record in vb.net using combo or textbox via linq to sql like the search engine? Just like when you search in google or youtube, once you typed in the initial string on the textbox or combo box it will show a drop-down list. I tried to use it in my application using linq method but the problem is it would duplicate on the first string that you entered on the dropdown list if that record exist on your database after you press the space key. I used the code below which duplicates the records on the drop-down list when you type in your string after the space key.
I just want it to be like in any search engine that when you type in the string or your initial string, it will display on the drop-down list all the records from the database that contains the string you entered without duplication. In my case, I'm trying to query a name from my database. This is how it should work, For example, if you type an initial string in the textbox or combo box a named 'Mark', it should display all the names from the database containing 'Mark' into the drop-down list before it changes into its final string that you entered.
Here is the codes I used: Private Sub ComboBox1_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ComboBox1.TextChanged Dim db As New MultipleDatabaseOperationDataContext Dim search As String search = ComboBox1.Text [Code] .....
I want to display all records from database in gridview when pageload and also i wanna search for particular record using textbox appear in my webform...Means by default all records from the table will appear in gridview using sqldatasource and i also wanna search for a particular record by enter ID in text box...
I am writing a VB 2008 program to display and update records from a sql database. This particular form is used to display and modify retail store information records from the database. I am running into an issue with saving the records once they have been changed.The error message I am getting is "Update requires a valid update command when passed DataRow collection with modified rows". I am including all of my code for the form because I am not sure what is relevant. I am getting the error when SaveTheEdit() is called on line 83. [code]
I need to display records from a database in Access in Visual Studio 2010. The project Im looking to create needs to display all of the records from the database and allow the user to navigate throughout the set of records.
So I've been playing around with SQL strings in VB 2008, and trying to retrieve records from a database and display them in a data grid view. This is the part of the code that gets the fields and displays them in the data grid view:
I am creating an application which will allow users to search parents names and display their childen respectively in a datagrid.I have created a form with two text boxes, a search button and a datagrid. The two text boxes are txtFName.text and txtLName.Text. On clicking btnSearch I want to be able to run a search to the SQL database for specific records.So far I have been sucessful in doing so with a listbox but I would prefer to have the data populating in a datagrid as it is more cleaner.
Here is the working code for displaying searched data in a listbox: Private Sub btnSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSearch.Click
how to update records from 1 text file into 2 different sql database.
Name of the sql Table is Payment2SQL_Success_P() & Payment2SQL_Success_E() is the code below is on the right track. Select Case "AGENCIES" Case AGENCY_AV Or AGENCY_SR Or AGENCY_IP Or AGENCY_TM Or AGENCY_MS
I am looking to make an application which records a database which tracks loans people have withdrawn and automatically emails/texts that person if there late on returning items. Is it even possible to do something like this solely in VB? And how would I go about setting it up.
I am using a Class_SQL that gets the table, creates the DataAdapter and DataTable.I have a combobox named cboFullname. I can fill the combobox with data from the database, ie: Dim sqlcmdtext As String = "SELECT *, Firstname + ' ' + Surname AS Fullname From Contacts". I can display full records in a datagridview.
I would like to be able to select a name from the combobox and have the record text boxes display the data and be changed with the cbofullname index changed subroutine. Here is my current code to date:
Public Class frmMain Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
I want to search the records from the textbox and display the records to the datagridview, if there are no records, just display empty on the datagridview.
this is not working: Dim sqlsearch As String sqlsearch = "SELECT * FROM setting WHERE mname LIKE '%" & TextBox.Text
i'm using string builder for generating Passenger List in which i have used a tables i want to add dropdownlist into this Passenger . what i did is i have taken one main table --
I want to search the records from the textbox and display the records to the datagridview, if there are no records, just display empty on the datagridview.[code]
I can retrieve records from my Database fine, but I'm having trouble updating records. I am getting a syntax error on [code] I get this error when I change the Last Name (Row 0, Column 1). [code]
Im using Visual Studio 2008 (ASP.net) to build some web pages..
I have a DropDownList linked to a DataSource from data base to fill it automaticly, and it works perfect, but I want to modify the items before its displayed ?
I have a combo box in my visual basic program and would like it to display text when the database has numbers.
For example, the database has values 1,2,3,4 and I would like the combo box to display "Lifo", "Fifo", Weighted Average" and "Specific Identification".
I have this richtextbox and displayed various text from .xml database. I need to format the text. For example when ever my vb code find string like 'the' in an .xml line it should display in italic as well as in blue color and so on for some other specific text.
