Data Controls :: Check For Duplicate Records While Inserting Data Using Details View Control

Feb 19, 2014

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 ?

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Forms Data Controls :: Checking For Duplicate Records In Gridview Before Inserting To Database?

May 10, 2010

I need to check for duplicate records before inserting them into the SQL database.Thus I have the following codes:

For count = 0 To GridView1.Rows.Count
If (GridView1.Rows(count).DataItem("Student Name").Equals(dtDataTable.Rows(count).Item("Student ID"))) Then
lblMsg.Text = "Records Existed"
End If

but there are error message. "Object variable or With block variable not set."

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Aug 25, 2010

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.

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Forms Data Controls :: Displaying Records In A Details View

Dec 16, 2010

I have written in the old ASP for year and just started two weeks ago with .net, It has taken some adjustments. I am learning using Web Dev Express. Anyway, Here is my question.

I am learning by creating a simple progam to track boxes associated with cases(litigation) IE Smith v Smith case has files in 3 boxes.

two tables


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ADO.NET :: Inserting Data From Details View?

Jan 30, 2011

I have created two tables movie with this columns:[mid], [Mname], [Director], [Genre], [Stars], [Description], [Foto] and table rates with columns: rid, Rate, fkmid. This are in relationship one to many, i added one details view and selected Enabel Inserting because i want to insert in this two tables. Because it is not possible to insert in both tables at the same time i created one view selecting all of the columns from both tables and connected SQLDataSource with this view but still i can't insert data from the Details view to the tables movie and rates because there is relationship between this two tables, i get the following error:

View or function 'ViewRM' is not updatable because the modification affects multiple base tables. Does somebody knows how can i insert data from details view to those two tables?

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Access :: How To Check Duplicate In Form View Insert Before Inserting In MS ACCESS

Aug 21, 2010

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...

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Forms Data Controls :: Delete One Duplicate Record Of Many Duplicate Records

Mar 15, 2010

I have a gridview with delete buttons for each record (I've used AccessDataSource). I have loaded the data in and have many duplicate records.

I just want to use the delete button delete each duplicate record while remains many duplicate records. For example:

I used the following query to load in duplicate records:

SELECT * FROM TableA WHERE ([ControlA] IN (SELECT [ControlA] FROM TableA GROUP BY [ControlA] HAVING (COUNT [ControlA]) > 1)))

ID ControlA PIN# FaceValue Date
delete 76637 128232 1234 5 6/4/2006
delete 72722 128232 1234 5 6/4/2006
delete 76638 234567 2345 10 7/3/2006
delete 72723 234567 2345 10 7/3/2006

What is the query to delete single duplicate record instead of deleting all duplicate records?

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Forms Data Controls :: Datagrid View Control Producing Duplicate Data Results When Data Is Cached?

Oct 10, 2010

I have a datagridview control that I'm using to display cache data to the end used on a web form. The issue that I'm having is that every time I re-run the application, and the cache data is re-generated... it loads duplicate data that's being displayed to the end user. I can't seem to figure out how to keep this from happening.

What I would like to have happen is that only unique data rows be returned and cached for the end user. Unless there are new data rows on the database that needs to be included in the cache data results...the previous data results should not be duplicated. I've tried to change a few properties on the datagridview control, but nothing seem to keep this from happening.


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Forms Data Controls :: How To Replace Data That Is In Details View, Details View Will Not Save Empty/null Value

Apr 28, 2010

I have a page that has a editable detailsview. When a user wants to erase the data for a field, they highlight the data, and delete/backspace over it, and click update. However, the original data is still saved. If they are replacing the current data with new data, that works fine and updates/saves correctly. This problem only happens when the current data needs to be removed.

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Forms Data Controls :: Details View Not Showing Option To "enable Inserting"

Feb 2, 2010

I have sqlexpress/Visual studio web developer default install, and have created a simple 1 table db in sqlexpress. I am able to connect to my database and browse and even edit tables through the Database explorer in visual studio, however when I try to create a details view control for editing , inserting and deleting records , none of these check box options show upafter I drag a details view control to my webform, and connect to my databse. The only account i have is the local admin on this system, and I am able to see my table data in gridview, but I just cannot get the "enable insert, enable delete etc.." checkboxes to appear when I add my details view control. Here are the exact steps I go through.

1. OPEN vstudio

2. Test DB connection in the db explorer by opening my database and editing a record.

3. Creating a new blank webform

4. Dragging the detailsview control over, configuring the data source, using localhostsqlexpress and windows authentication and the name of my DB "test". The connection test is successful.

at this point in design view, when I click the arrow to open the "details view tasks" I cannot see any checkboxes for inserting or deleting. My table data shows up fine, and I am using a windows authentication account which has admin privs. Im sure this is something simple, but I have been searching and searching and can't figure out what Im doing wrong.

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Forms Data Controls :: Inserting Records Using The Gridview Control?

Nov 13, 2010

Iam using the Gridview control for inserting the records in Database i placed the controls in TemplateField tag like Textboxes and DropDownlist but when page executes nothing is displaying in the control Is there any way to get it work or i must have to define the datasource for the Gridview Control????

<asp:TemplateField ...>
<asp:DropDownList ..../>

And more textboxes like the above way but there is no Bound Field because iam going to insert the record in DB while placing the controls in Gridview Control

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Forms Data Controls :: Check For " Null != " Sees Everything In Details View As True?

May 31, 2010

The page you see below displays one entry in my database and should allow you to click the Validate button if the validation_code for that entry in my database does not already have data bound to it.Once data is bound to that particular database entries validation_code field the Validation button should no longer be displayed.The problem is that in my database some entries have the validation_code field filled in and some are null (empty) but the script is seeing every entry in the database as if it was filled in. So, no matter what is in the database for a particular entry, if any other entry in my database is filled in, the Validation button is disabled. I only want it disabled if that particular entry has data in the validation_code.


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Forms Data Controls :: Details View Not Showing Data In Master / Details

Jun 26, 2010

I'm trying to get a record to show up in a details view as part of a Master Details. I was able to get this to work by setting the visibility to true for the Details View in the Page Load event. I now want the details view to show up when the Select button is clicked in the GridView's template field using the onClick event for the button. I don't seem to be assigning the correct properties to get this to work though. what property I should use with this? I know I have to get it from the GridView and assign it to the details but haven't gotten it to work. this is the GridView:


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How To Check Duplicate Range Of Dates While Inserting The Record

Oct 30, 2010

I am creating roombooking website in

and i am facing problem while inserting the record.


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.

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ADO.NET :: Check For Duplicate Records

Dec 14, 2010

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)
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)
lblError.Text = "Records already exists"
End If
End Sub

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Data Controls :: Find Control Method In Details View Returns Null

Nov 29, 2013

I have detailsview control with bound fields...some using  Templatefields. I am trying to access values in those fields but i get nulls....i really dont know why..I am proving all my code....

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Projects.aspx.vb" Inherits="Projects" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">
<html xmlns="">
<head id="Head1" runat="server">
<title>Projects Statuses</title>


I guess something might be getting messy with the mode changing event... a postback? But if i remove the databinding code, i get an error! why find control returns null??

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Forms Data Controls :: Making A Gridview Show Details With A Details View

Apr 12, 2010

I have on a page a gridview that can be filtered with one text box. I set up the gridview to show select and wanted to then connect a details view so that when you selected a row the entire details would show up. When I run it I get this error. Data keys must be specified on GridView 'GridView1' before the selected data keys can be retrieved. Use the DataKeyNames property to specify data keys.

<%@ Page language="C#" masterpagefile="MainContent.master" title="Electrical Storage" EnableEventValidation="false" %>
<asp:Content id="Content1" runat="server" contentplaceholderid="Content">
<div id="Rightside">
<h2>Search Electrical Storage
<li><a href="EStorageResultsAll.aspx">View All Files</a></li>
<li>Specify Projects to View</li>
<br />
<br />
Search: <asp:TextBox id="Search" runat="server"></asp:TextBox>
(% is wildcard)<br /><br />
<asp:Button runat="server" Text="Search" id="Button1"
PostBackUrl="electrical_storage.aspx" Height="26px" BackColor="#000066" ForeColor="White" Width="129px"></asp:Button>
<br />
<hr />
<asp:GridView id="GridView1" runat="server" AutoGenerateColumns="False" BackColor="#CCCCCC" BorderColor="#999999" BorderStyle="Solid" BorderWidth="3px" CellPadding="4" CellSpacing="2" DataSourceID="AccessDataSource1" ForeColor="Black" Width="820px" AllowSorting="True">
<RowStyle BackColor="White" />
<asp:commandfield ShowSelectButton="True">
<asp:boundfield DataField="CoID" HeaderText="Co ID" SortExpression="CoID">
<asp:boundfield DataField="ProjClass" HeaderText="Project Class" SortExpression="ProjClass">
<asp:boundfield DataField="Project" HeaderText="Project" SortExpression="Project">
<asp:boundfield DataField="FileName" HeaderText="File Name" SortExpression="FileName">
<asp:boundfield DataField="FileAddInfo" HeaderText="File Add Info" SortExpression="FileAddInfo" Visible="False">
<asp:boundfield DataField="FileNumber" HeaderText="File Number" SortExpression="FileNumber" Visible="False">
<asp:boundfield DataField="BoxNumber" HeaderText="Box Number" SortExpression="BoxNumber" Visible="False">
<asp:boundfield DataField="Location" HeaderText="Location" SortExpression="Location" Visible="False">
<FooterStyle BackColor="#CCCCCC" />
<PagerStyle BackColor="#CCCCCC" ForeColor="Black" HorizontalAlign="Left" />
<SelectedRowStyle BackColor="#000099" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#000066" Font-Bold="True" ForeColor="White" />
<asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="\Elec1DATABASEStorageElectricalFilesBook.mdb" SelectCommand="SELECT [CoID], [ProjClass], [Project], [FileName], [FileAddInfo], [FileNumber], [BoxNumber], [Location] FROM [FilesWithLocation]
WHERE (([CoID] LIKE '%' + ? + '%') OR ([ProjClass] LIKE '%' + ? + '%') OR ([Project] LIKE '%' + ? + '%')OR ([FileName] LIKE '%' + ? + '%')OR ([FileAddInfo] LIKE '%' + ? + '%')OR ([BoxNumber] LIKE '%' + ? + '%'))">
<asp:controlparameter ControlID="Search" Name="CoID" PropertyName="Text" Type="String" />
<asp:controlparameter ControlID="Search" Name="ProjClass" PropertyName="Text" Type="String" />
<asp:controlparameter ControlID="Search" Name="Project" PropertyName="Text" Type="String" />
<asp:controlparameter ControlID="Search" Name="FileName" PropertyName="Text" Type="String" />
<asp:controlparameter ControlID="Search" Name="FileAddInfo" PropertyName="Text" Type="String" />
<asp:controlparameter ControlID="Search" Name="FileNumber" PropertyName="Text" Type="String" />
<asp:controlparameter ControlID="Search" Name="BoxNumber" PropertyName="Text" Type="String" />
<asp:AccessDataSource id="AccessDataSource2" runat="server" DataFile="\Elec1DATABASEStorageElectricalFilesBook.mdb" SelectCommand="SELECT * FROM [FilesWithLocation] WHERE ([SearchString] = ?)">
<asp:controlparameter ControlID="GridView1" Name="SearchString" PropertyName="SelectedValue" Type="String" />
<asp:DetailsView id="DetailsView1" runat="server" AutoGenerateRows="False" DataSourceID="AccessDataSource2" Height="50px" Width="442px">
<asp:boundfield DataField="CoID" HeaderText="Company ID" SortExpression="CoID">
<asp:boundfield DataField="ProjClass" HeaderText="Project Class" SortExpression="ProjClass">
<asp:boundfield DataField="Project" HeaderText="Project" SortExpression="Project">
<asp:boundfield DataField="FileName" HeaderText="File Name" SortExpression="FileName">
<asp:boundfield DataField="FileAddInfo" HeaderText="File Additional Info" SortExpression="FileAddInfo">
<asp:boundfield DataField="PeriodBegin" DataFormatString="{0:d}" HeaderText="Period Begin" SortExpression="PeriodBegin">
<asp:boundfield DataField="PeriodEnd" DataFormatString="{0:d}" HeaderText="Period End" SortExpression="PeriodEnd">
<asp:boundfield DataField="FileType" HeaderText="File Type" SortExpression="FileType">
<asp:boundfield DataField="FileNumber" HeaderText="File Number" SortExpression="FileNumber">
<asp:boundfield DataField="BoxNumber" HeaderText="Box Number" SortExpression="BoxNumber">
<asp:boundfield DataField="SearchString" HeaderText="Search String" ReadOnly="True" SortExpression="SearchString">
<asp:boundfield DataField="Location" HeaderText="Location" SortExpression="Location">
<asp:Content id="Content2" runat="server" contentplaceholderid="head">
<style type="text/css">
table {
width: 820px;
.gridview {
width: 820px;
position: fixed;

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Forms Data Controls :: Details View That's Part Of A Master / Details Be Opened Up In A Modal Window?

Apr 11, 2010

I have a details view that appears when record is selected in a GridView. Can this details view be opened in it's own modal window that would allow me to use the full event model?

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Data Controls :: Display Details Of GridView Row In Details View

Jan 20, 2014

I have a gridview which display when person start n stop the project if same person do muliple projects it save n retrives eaisly i want to do that when i press select in gridview it give me the all about the person means if ali is working on 2 projects so it give me details like ali firsrt project is this time n date this , second project is this how can i do this ?

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Data Controls :: How To Stop Transaction While Inserting Record If Duplicate Value Found In DB

Nov 7, 2010

I have a formview and inside it there are two textboxes taking integer as input.I put a condition that if both textboxes are empty then user should be notified that "Please put value in any one of the textbox".It is working very fine.From database side DBA checked that if user input any integer value in any one of the two textboxes and if it is already found in database then there is no insertion.The problem is that everything is working fine and i checked in the database that the record is also not inerting due to duplicate check but user is getting message that "Record inserted successfully."How to stop this message and how to notify user that you have entered duplicate value and transaction should also not been done. Means all inputs should be there rather than clearing textboxes that could be done when "Record Inserted."

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Data Controls :: Check For Duplicate Values When Adding Data Using JQuery AJAX

Aug 18, 2015

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   

<script type="text/javascript">
$(function checkuser() {
// $(function () {
// $("[id*=btnAddRow]").click(function () {
var operator = $("[id*=txtoperator]").val();
var value1 = $("[id*= txtvalue1]").val();

[Code] ....

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Data Controls :: Check Duplicate Data And Remove It Using LINQ Query In C#

Dec 13, 2013

I have database as

ID              name       desc         rupees

1               Test1          abc        1000
2               Test2          dcf         1000
3               Test3          edf         1000
1               Test1          dcd        1000
2               Test2          dcf        1000

Now I want a linq query to check for the duplicate name and if present adding its rupees...

E.g.: Result will be

          name               rupees

         Test1               2000
         Test2                2000
        Test3                1000

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Data Controls :: How To Remove Duplicate Records From GridView

May 7, 2015

I used this example [URL] but add this in gridview

<asp:GridView ID="GridView1" Width="300" runat="server" AutoGenerateColumns="false" RowStyle-BackColor="#A1DCF2"
HeaderStyle-BackColor="#3AC0F2" HeaderStyle-ForeColor="White">
<asp:TemplateField runat="server" HeaderText="Imagen">
<table> <tr>


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Forms Data Controls :: Multiple Duplicate Records Appearing In Gridview?

Jul 12, 2010

Using 2005 and sql server mgmt studio 2005.

I am querying sql server db and returning unique records, no duplicates when I return the records in sql server mgmt studio.

However when I bind the dataTable that I return it is showing multiple duplicates, meaning I see each record appear 8 times in the gridview, has anyone seen this or know what I'm doing wrong?

My code below:


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AJAX :: Can A Details View In The Modal Pop Up Control Be Style Like A Regular Details View

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I'm thinking of using a modal pop up control that would have a details view in it. I currently have a details view that uses CSS Friendly control adapters with the CssSelectorClass attribute. Can I use the CSS friendly CssSelectorClass property with a details view in the modal pop up and style it as I'm currently doing with my Details View?

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