Validation That Can Check The Duplicate Value Of Textbox?
Dec 22, 2010
Requirment is: while enterening the value you should know that this values is already we have used in data base for that textbox field.Please give code in .aspx and .aspx.cs with database if any
I want to check for duplicate records,if the record is already inserted then "record has already been inserted" should appear or else if its a new record then it should be inserted.. This function is inserting even if it exists and showing the error msg..
Sub CheckForDuplicateRec() Dim da As SqlDataAdapter Dim ds As New DataSet Dim dt As New DataTable cmd = New SqlCommand("Select * from Table3 where Name='" & txtname.Text & "' AND FName='" & txtfathersname.Text & "' AND MName='" & txtmothername.Text & "' AND Add1='" & txtadd.Text & "' AND Add2='" & txtadd2.Text & "' AND Add3='" & txtadd3.Text & "' AND City='" & txtcity.Text & "' AND State='" & ddlstates.SelectedValue & "' AND Pincode=" & txtpincode.Text & "", con) da = New SqlDataAdapter(cmd) da.Fill(ds) dt = ds.Tables("Table3") If dt.Rows.Count = 0 Then cmd = New SqlCommand("Insert into Table3 (Name,FName,MName,Add1,Add2,Add3,City,State,PinCode) values('" & txtname.Text & "','" & txtfathersname.Text & "','" & txtmothername.Text & "','" & txtadd.Text & "','" & txtadd2.Text & "','" & txtadd3.Text & "','" & txtcity.Text & "','" & ddlstates.SelectedValue & "','" & txtpincode.Text & "')", con) cmd.ExecuteNonQuery() Else lblError.Text = "Records already exists" End If End Sub
I am facing a serious problem here.i developing a college project and in admission page there are a field student_code(in database ) which is manually auto generate but not unique.so I use like following.
I am using telerik control to implement my project. For the validation i use asp.net validation controls. Now i need to check duplicate name for name field in the database. I have 2 options1. in the save button click event or custom validator2. after enter the name i can display the error.Here in the second option i have doubt. How can i achieve this ? using textchanged? i am using radtextbox. when i try textchanged some issues in validation controls because of ajax.I am using asp.net 3.5 So i got one new validator named Dynamic Validator. What is the purpose of this. i dint got any good articles to study abouyt this? Can i use this validator here. I read the following forum[URL]but not got any example for dynamic validator. I thought to implement the scenario like some registration form (yahoo) did.When username enterd just diaply duplicate
I have asp.net form having 4 check boxes. not check box list. these 4 check boxes having the ValidationGroup property with same name say "chkValied". I have added Custom Validator there. now want to check at least on check box should be check out of these.
and i am facing problem while inserting the record.
eg:
if the room is already booked from 1st march 2010 to 10th march 2010.and if anybody is booking the same room from 4th march to 9th march it should show error message stating that
this room is already booked from 1st march to 10th march.
I have webform which has insert button to insert/Add new record into my database table. It works fine but the problem is that I have a unique field name of the field is txtQuotes ,The user should not be able to insert a record that contains the same value for that field.How can I check for duplicate?
my requirement is to update a duplicate record in datatable.in my website if anyone select a product more than one time then i have to check and update the quantity of that record.i use for loop for this but it is not working properly, it is running perfectly for one product but when i add another product it won't work.how can i do this?Here is my code part which is run on add button click
if (sc.dtcart.Rows.Count > 0) { for(int i=0;i<sc.dtcart.Rows.Count;i++)
I Have one gridview which i show in admin panel and need to allow edit and delete the row.now my problem is when click on edit i need to check that duplicate record not allow to enter and my password is in encrypted formate and i need to show decrypted form in gridview so if admin want to edit password then he can edit it And at a time of edit gridview can i give option of dropdow to selection instead of text box?
On inserting record, I want to check that for example if a user enters a telephone number for any record is already in the database then it should validate that the number already exists in table and you cannot enter a duplicate value.
Then if user will provide some other telephone number then he allows to insert record.
For insertion of record I used ObjectdataSource.
User will enter telephone number in a simple textbox.
I may want to inform that I am working in asp.net2.0 and also not allowed to use any third party control or ajaxtoolkit.
I have 2two gridview .If i have load same data from two gridvie after that i drap and drop one ID one grid to another grid that time ID same means it will show alert match or it will show not match alert using jquery.
I have 3 text box's and a submit button when i enter the values and submit then values are entered in database but when i enter the same values and enter then those values are also entered.......This should not happen...I need a popup window showing there are duplicate values that you have entered.Please give the code for aspx and aspx.cs and data base.
I have 3 text box's and a submit button when i enter the values and submit then values are entered in database .but when i enter the same values and enter then those values are also entered.......This should not happen...I need a popup window showing there are duplicate values that you have entered.
i used ajax control ModalPopupExtender.ModalPopupextender has panel. in that panel, text boxes and gridview placed and OK button. it has three textboxes and gridview and ok button sequentially. While edit button of gridview and after entering the some intextboxes, the text of textboxes repetedly show on textbox with camma.
Below is my function which insert textbox value into grid view .this work fine .
Now I want to compare grid view row with textbox value if already exist in grid view then it give me massage already exist with same name means duplicate data cannot insert into grid view
I want to Check Gr #(PK) of student wheter exist in table or not id exist show Msg in Label after lost focus from text box .. I tried AutoNumber in Access but it showing error while insertion Note : im using form View control for insertion...
I have a detail view form consist of five fields my 1st field is jobnumber which is primary key i want to do that when user by mistake enter the duplicate jobnumber error occur that this is already used how can i do this ?
I want to generate 30,000 cards and each card must be duplicate check with database. In my card, there are 2 things. Serial No and CardID. If any card already exists then I generate another card id but with the same serial no.
So how faster way I can generate 30,000 card with duplicate check? Which one I have made application, it takes about 25 minutes to insert.
Now I know this works.. but what is the right way to have this? I don't want to be checking something twice instead of just having it written out once.
I am working on a project in .NET (C#), connected with a database. And I am entering values in database through 'text-box' control, for a part of the project. What I want is to check if the user entering value already exsists in the database and if so, shows error during that time only.
I have searched for any familiar post here, that could solve my query, but didn't get any.
my EXACT objective(if not cleared earlier):-
when the user enter the value in textbox, automatically an event to check any duplicate records in database should occur. And if found, displays an error message