Check Textbox - If Not Exist Then Insert Value In Table
Mar 1, 2010
Using SQL Server 2005, vb.net
Table1
Name FromDate ToDate
Raja 12/02/2010 14/02/2010
Ravi 14/02/2010 15/02/2010
Ramu 18/02/2010 21/02/2010
...,
Insert into Table1 values('" & textbox1.text & "', '" & textbox2.text & "'. '" & textbox3.text & "'", con)
When I try to insert a value into table1 it will compare the table values if it is same, It Should throw a error msg "Name and Date Already Exist" otherwise Insert a value. Before Inserting i want to check a textbox value with table value.
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May 19, 2011
Check if park_id already exist in table calendar by stored procedure? [code]...
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Dec 21, 2010
I try to find online any example for create an application autoupdate.
When I run my application it check in a webserver if exist new version,if exist the software run update.
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Dec 7, 2011
I have looked through the entire internet (well that's what it feels like) to find this out.Tables - Authors and Titles add new title must be linked to an author, so I need to check that the author exists, if so, update the titles table with the user data from the textboxes. If the author does not exist, I need to insert the author first & last name into the author table, then the title info into the title table.this is in VB, using ASP.NET, and my database is a file, I'm not using SQL server, just Visual Studio 2008.
Dim insertParameters As New ListDictionary()
insertParameters.Add("ISBN", ISBNTextBox.Text)
insertParameters.Add("Title", titleTextBox.Text)
[code].....
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Mar 5, 2010
my program is "live" and my customer has troubles because it doesn't functioning as well as it should.I don't know what happen, did I changed something or not but suddenly data won't save to database from newly created forms. Beside this form I have additional 20 forms and everything is working like a charm and I use same code logic to save data to database. I tried to find myself what could be the reason, check by entering data directly to database table (works fine), check insert statement of dataset table (seems fine, too) and everything I could imagine. But now I ran out of ideas and I had to ask here.
Also, I added 3 fields to database table (nvarchar, int and decimal). All 3 of them allow nulls. I changed dataset and data entry form and now data won't insert if I dont enter values to int and decimal fields. Also, this decimal field doesn't accept 0 value if enter but if I assign value 0 from the code than it is ok. I'm not sure if I somehow changed concurrency and somewhere. I tried to find where I can change it but I couldn't find it. I use Visual Studio 2008 and Sql Server 2005 Express. Language vb.net.
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Apr 23, 2012
I want a Code to check Database exist in SQL and Message Box Show Database Exist Yes/NO?
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Jun 10, 2012
How can I insert data in a sql table using a textbox. I use this code but it doesn't work.
Imports System.Data
Imports System.Data.SqlClient
Public Class Form1
Private Property com As Object
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
[Code] .....
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Feb 22, 2012
Inside my application, I need to insert data from two sources: table and form textbox. So I tried to use the code below, but the message box is displaying an error. (I am using vb.net)
Error:
While inserting record on table ..Syntax error (missing operator) in query
Code:
Dim con As New OleDbConnection
Dim cmd As New OleDbCommand
Try
con.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;
Data Source=C:UsersDellXPSDesktopmDB.accdb"
[Code] .....
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Feb 12, 2011
I want to know the accurate coding for inserting value from textbox to Access table . e.g : Student type in their name to textbox , when the add button is clicked, the name will be stored to the Microsoft Access table that has been created
Due to too many code version I have been research on web( youtube, google, forum, blog etc) I getting confused of different code from different programmer, can anyone let me know the exactly working coding?
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Jun 5, 2010
I am looking to programme a button to check if an entry from a textbox exists within a table.
This will done via a button.
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Jan 5, 2011
I am using this code to insert into a single table.How to use the code to insert the textbox text to multiple tables of same column on single button click event in VB.net?
Imports System.Data.SqlClient
Protected Sub ImageButton1_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton1.Click
Dim con As New SqlConnection
[code]....
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Jan 17, 2009
Using VB.Net and Sql Server I want to check the user Entry Value.The User is entering the code in the textbox, before saving to the table, i want to check whethere code is already exist in the table or not.
Tried Code
cmd = New SqlCommand("Select code from table where code = '" & textbox1.Text & "' ", Con)
dr = cmd.ExecuteReader()
While dr.Read()
End While
If value is exist, then message to the user "Already Exist" other wise save to the table.
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Jan 11, 2012
I want to insert records in the database but before it inserts, it must first check the database whether the value being inserted already exists. Now my problem is that I am unable to insert into the database even though the value still does not exist.
Here's my code:
Dim check As New SqlCommand
Dim sqlcheck As String = "SELECT SerialNumber FROM EquipmentDetail WHERE SerialNumber = '" & TextBox1.Text & "'"
connection.Open()
[code]....
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Nov 17, 2009
I want to check inside a dir if any folder exists. Every way I found is to check for a specific folder with name as string. I want something like
folderExists = My.Computer.FileSystem.DirectoryExists("C:TestDirectory*")
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Jun 21, 2007
how do i verify a file like a image or html exist on the web?
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Nov 18, 2009
i am having a problem in writing the code that checks whether a directory exists or not in FTP using vb.net..
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Jun 21, 2010
I had it working at one point now it does not want to work. Im checking the registry for a subkey and I know it exists but vb is telling me it doesnt, which is driving me up the wall, this is what I got[code]...
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Sep 8, 2009
This code works. i insert 3 string and then check if the database already save this code.if the first string does not exist it works well.but when 1 string "already exist" or found in the DB, all of the next string say its already in db even though it haven't. what should i do?
For count = 0 To strArr.Length - 1
If strArr(count).Contains("=") Then
str1 = strArr(count)
coun = str1.IndexOf("=")
str1 = str1.Substring(0, coun)
[Code]...
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Feb 14, 2012
i'm using mysql database, what codes for check if username is already exist this for creating username and password ..
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Oct 21, 2009
the way i could use VBA to check if a function say function1 is present in class1. if the function is present display 1 else display 0.
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Mar 3, 2010
My question is how to check a letter exist in a word. For example this word: 'computer' and I give in a textbox letter 'a' then the result will be false because 'computer' doesn't exist a letter 'a' else if I give letter 'c' the result will be true because computer has a 'c'.
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Jan 5, 2012
How can I check if an object (in this case my object would be a ButtonBox) exists inside a GroupBox but in a exact location.
Something like this :
If Groupbox1.NameOfButtonBox.location(40,190) exists then
Do my code
end if
I know the syntax is completely wrong but it's just an example
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Jan 22, 2010
I created a form with a checkbox and my purpose is if data have already existed, the checkbox will show a check when it launch however i am very new to VB( First time actualy). i google to find the answer but the best solution just tell me to use RegQueryValueEx, unfortunately,i don't know axactly how.
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Jan 25, 2009
what is the fastest way to check if Item ID exist in the database?
From what i have done, i have an excel file uploaded to datagridview, then each itemID is retrieved line by line, then accessed the database to check if ItemID exists.
Is there a way to retrieve the whole column of itemID and then query it to MSSQL2000, then display the itemIDs that does not exist.
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Aug 15, 2011
Im using Microsoft Visual Studio 2010
Microsoft Acess 2010
This is for practice
Lets See First off i was able to get to insert records(Code Below)Now im trying to get the program to prompt a message when the id or field exists on the key down event and not enter it if it exists and if it doesnt exist im guessing i could use my already existing code to insert it[code].............
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i have a code where I dynamically generate the columns name and bind it it datatable. now I am iterating thru loop for each column and fill the datatable. My Problem is when I fill for first column row is already added to the position(e.g 0,1). if row at some position already exist in datatable I should not write
dr = dt.NewRow()
dt.Rows.Add(dr)
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how to check the data is already exist in database using vb 6.0Naren
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Sep 29, 2011
Using VB.Net and Sql Server. I want to check the user Entry Value. The User is entering the code in the textbox, before saving to the table, I want to check whether code is already exist in the table or not.
Tried Code
cmd = New SqlCommand("Select code from table where code = '" & textbox1.Text & "' ", Con)
dr = cmd.ExecuteReader()
While dr.Read()
End While
If value is exist, then message to the user "Already Exist" other wise save to the table.
View 1 Replies
