Database, Gridview, And SQL Statement?
Oct 2, 2009
First off I am using a database code that I found on the web, which is close to what I need to do a small program for my boss. I'm in the process of tweaking it to his needs, and also in the process of trying to figure out the code. I am having a hard time trying to get one aspect working which is a COUNT of all jobs employees have been to. My Access database is as follows:[code...]
The assigned Jobs column should basically load the number of rows (Assigned Jobs) under each persons unique ID number from the Call Out Details Table, while the rest of the info is pulled in from the Employees Detail Table.
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Dec 6, 2010
How to show pop up menu from database in gridview on each gridview row items ?Example of this is : http:[url].....Move your cursor to Departure time and arrival time...a want this type of popup in gridview items....which fetch entries from database..
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May 1, 2009
I am currently writing a VB .NET application where I am trying to open 1 database, create a select statement and then post the results into another database file using Microsoft Access database 2003.
The code seems to stop executing at the statement cmdJetDB.ExecuteNonQuery()
I am using the following code:
Dim conn1 As OleDbConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data source=C:Sample.mdb")
Dim conn2 As OleDbConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data source=C:db2.mdb")
conn1.Open()
conn2.Open()
[Code]...
Question: What is it that I am not doing. I opened both connections, stated my two SQL statements, yet it is still not working. I really need to get this application working. Please Help.........
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Jun 21, 2010
A datagridview control that bounds to ms access database.
I am adding more rows to gridview control. How can i save these data to database?
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Nov 16, 2010
how i can take a row data in a datagrid and insert it into a table on my database?
I have the following code, but it doesnt seem to be working.
Dim conn As String = "Data Source=..."
Dim SQLString As String
Dim paramColl As SqlParameterCollection
[Code].....
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Jan 26, 2011
How to display whole records from database in Gridview and also do filteration using textbox ?
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Mar 13, 2012
I have a grid view which uses SQL to calculate information that I need! I want to put this calculated total into another table in database.
SELECT StaffDetails.StaffID, SUM(HolidayRequests.RequestTotalDays) AS Expr1
FROM HolidayRequests INNER JOIN StaffDetails ON HolidayRequests.Username = StaffDetails.UserName
[Code]....
It basically calculates the total number of approved holiday requests for a staff member which is correct. I want this number to then update the HolidayTaken field in another table each time a holiday is approved.
I have tried an update however you cannot use an aggregate in an update as I have found.
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Sep 28, 2010
Markup:
<asp:GridView ID="GridView1" runat="Server">
<Columns>
<asp:BoundField DataField="status_column" HeaderText="Status" />
[Code].....
The values stored in my database are integers, 1 - 9. Each value has an associated string value that I want displayed in my GridView. Ex: 1 = "Active"; 2 = "On Hold"; etc. How would I filter the incoming data so I can display the associated String value instead of the Integers from my table?
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Oct 20, 2011
I am making a widows application wherein i have a form containing two datagridviews.. The first one( named dgv1) consists of all the data from the database and a checkbox column.. While the user selects the rows using checkbox, the data are displayed in adjoining datagridview(named dgv3).. Now, the issue is that when i click submit button, i want the data in dgv3 to be inserted in database (Ms access-2003)..
I am using : vb.net, vs2008, ms access 2003..
This is what i have done so far..
Imports System.Data
Imports System.Data.OleDb
Imports System.EventArgs
[Code].....
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Oct 20, 2011
I am making a widows application wherein i have a form containing two datagridviews..The first one( named dgv1) consists of all the data from the database and a checkbox column..While the user selects the rows using checkbox, the data are displayed in adjoining datagridview(named dgv3)..
Now, the issue is that when i click submit button, i want the data in dgv3 to be inserted in database (Ms access-2003).I have referred and tried various snippets, as per my understanding but in vain !! none working for me..
[Code]...
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Apr 6, 2009
i have a checkbox in gridview.
<asp:CheckBox ID="chkStatus"
runat="server"
Checked='<%#GetStatus(Eval("VaccinationCompletedStatus"))
[code].....
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Jan 22, 2010
hi iam using to insert data into database by using gridview,,,,, i have coding in c#.net please convert this code into vb.net
here my coding is given below
using System;
using System.Configuration;
using System.Web;
[Code].....
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Jan 18, 2011
I am desperately looking for this solution,is it possible to insert new values to your table from the datagridview?the scenario is this: i have imported data from excel and display those data on a datagrid. now after displaying those data on the datagrid there is a save button wherein if the user clicks the button the displayed data on the datagrid will all be inserted to my existing table
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Aug 23, 2011
This is my code for update event
Protected Sub GridView1_RowUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs) Handles GridView1.RowUpdating
Connection.Open()
[Code]....
it is deleting and fetching fine but while trying to update it shows nullreferenceexception was unhandled by user code in this line:
a = Trim(empname.Text.ToString)
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May 14, 2011
Protected Sub GridView1_RowCommand _
(sender As Object, e As GridViewCommandEventArgs) _
Handles GridView1.RowCommand
If e.CommandName.CompareTo("command") = 0 Then
Dim itemID As Integer = Convert.ToInt32( _
GridView1.DataKeys(Convert.ToInt32(e.CommandArgument)).Value)
[Code]...
Basically, it doesn't work and I don't get it. I've been trying to figure this out for a few days now and I can't see what I've done wrong. As you can see I'm trying to manually update a field in my database with the value of (originalvalue)+1 when the user clicks the buttonfield of the corresponding row.
I guess what I'm asking is if anyone can point out any mistakes, please do, or if there's a better way to do this (without having to go through all the DAL/BLL BS)
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Apr 23, 2012
is it possible for you to use a IF Statement containing data from a database such as: if staff id = 1234 then do as follows end if
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Apr 3, 2009
I am currently trying to develop a program, for personal use, that will monitor the lending of items of music equipments to friends and family etc. And, for my program, I have a requirement, which is the ability to search a relational database, for items loaned, through my program, based on criteria entered in a set of text boxes located upon the program's form. I have already set up the form, and have searched the Internet high and low, to no avail (probably didn't look hard enough).e,I would also like to make another request... if possible I would like to achieve this task with use of the 'LIKE' statement, so that I don't have to input the criteria in full, when I wish to search the database.
The database that I am using is a standard Microsoft Office Access database, saved in a '.mdf' format, and the database comprises of three tables; LoanTbl (which specifies the loan details), EquipTbl (which contains information about the equipment loaned) and a LinkTbl (which forms the relationship between these former two tables) - the reason for the LinkTbl, even though it may seem unnecessary, is because the data has undergone 'normalisation', so that it is stored in the most efficient way possible.
Also, whilst I am on the point of linking together my program and database, does anyone also possibly have any ideas as to ways in which to add data to this relational database; I do have coding for this, however, it only applies to a stand-alone table, whereas there are relationships between my tables.
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May 8, 2012
I have limited knowledge on VB coding. I am now creating a system which allow customer to select exhibition event and booth number they want and next reserved which day they want to rent.By default, in GridView control can add checkbox Field but it only generate 1 checkbox for 1 row of data.
As state in the title, I have no idea how to generate the checkboxes for every field in database call D1,D2,D3,D4,D5,D6 and D7, each carry value 0 by default.Now I want every single field have a checkbox to allow customer select which day they want to reserve and retrieve their checked value to stole into corresponding D1-D7 field, checked value will update value 0 to 1.Next, how should I coding to store the checked value into database? in default.aspx or default.aspx.vb? generate checkbox instead of using gridview?What I want
My coding:
<%@ Page Language="VB" MasterPageFile="~/MasterPageMember.master" AutoEventWireup="false" CodeFile="member_view_event_list.aspx.vb" Inherits="member_view_event_list" title="Untitled Page" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">[code].....
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May 29, 2012
I'm trying to link Access database with GridView control.Here's the question: One successful procedure to link database query.
[code]...
However, I got error of "The ConnectionString property has not been initialized." on da.Fill(dt) when running the second time. First time was successful.OK I finally got mistake corrected. I gotta Dim cn As New OleDbConnection("Provider = Microsoft.JET.OLEDB.4.0;" & "Data Source = C:Class.mdb") again to use query instead of once for all queries.
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Jul 3, 2010
I have tried to set up combo boxes in the gridview but all the combo boxes have the same value in them instead of the value from the database. I am using entity framework and WPF. There is a parent child relationship between two tables but the source for the combo box is a separate table with names and IDs for tags. I have been looking all day. Hopefully this won't be too easy to solve.
The "Tag" Column displays the combo box. The Column "Tag ID" displays the value from the database. When I display the data the TagID Changes in diffrent rows but the Tag column is the same (the first choice) in all the rows. When I change one combo box they all change. I can't see where they are hooked together.
Here is the XAML
<Window x:Class="MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="372" Width="675" mc:Ignorable="d"
[Code].....
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Oct 12, 2011
I've got my code to delete rows out of the database when the user clicks on the Delete button in my GridView, but the GridView isn't updating to reflect the new data changes.
Here's my code:
<asp:GridView runat="server" ID="grdQuestions" AutoGenerateColumns="false" Width="100%" CellSpacing="10"
PagerSettings-Visible="true">
<HeaderStyle CssClass="aspNetHeader" />
[code]....
EDIT 1:Did some stepping through the code and found that e.CommandArgument is not getting a value in grdQuestions_RowCommand
EDIT 1 (Revised):The fact that e.CommandArgument wasn't getting a value was my mistake. I'd changed the way it's value was being assigned without removing the previous method.The code runs through grdQuestions_RowCommand and then goes into grdQuestions_RowDeleting and then executes GetModuleData.I have a feeling that to view changes to the grid, a PostBack might be required, but I've removed all DataBinding to an If Not IsPostBack Then block because the alternative caused problems with the DropDownList whose selection is used as a reference to populate the grid (ddlModules selected the Module whose Questions will display in the grid).
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Dec 3, 2010
I have two textboxes Textbox1 and Textbox2 and 1 gridviewi want my site users may search record either by entering the city name in textbox1 or by entering the country name on textbox2 via gridview
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Mar 29, 2012
This is the code for displaying data from database to gridview....If i am doing any changes in GridView and it has to update in database.[code]...
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May 4, 2010
i use this gridview to save data to database. but everytime i save, the only data that saved was checkbox that i was recently checked. so checkbox that was supposed checked not saved to database. [code]
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Jun 21, 2010
The problem I'm having is that I cant get get the SQL statement to show all the tables within the database.
The code im using is as follows:
Imports System.Data.OleDb
Public Class frmtables
Dim objconnect As OleDbConnection
[Code].....
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Jan 1, 2011
Is it possible to check to see if the text in a textbox is present in a table/database and then display the corresponding data.
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Mar 18, 2010
I currently have a problem attepting to update a record within my database. I have a webpage that displays in text boxes a users details, these details are taken from the session upon login. The aim is to update the details when the user overwrites the current text in the text boxes.I have a function that runs when the user clicks the 'Save Details' button and it appears to work, as i have tested for number of rows affected and it outputs 1. However,when checking the database, the record has not been updated and I am unsure as to why.I've have checked the SQL statement that is being processed by displaying it as a label and it looks as so:
UPDATE [users]
SET [email] = @email,
[firstname] = @firstname,
[code].....
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Jul 15, 2010
I have the following code:[code]When I run it, looking at the debugger everything looks okay but when I check the database table it is supposed to be inserting into - the column values (for occupantnum) haven't changed - they are all still null! Not sure if this is related, but note that I've now updated j to explicitly be an integer. I noticed while debugging that wResident.occupantnum was appearing as Type "Integer?" - but this doesn't seem to have made any difference - when I rerun it it still says Type "Integer?"
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Jul 3, 2011
Im making just a fun project using visual studio 2010. Its a simple password manager. The issue im having is trying to put the information from my Access database into a gridview. The issue im having is that it just doesnt do it, no error, just no results. I have done some looking, tried different examples but no luck on this.
Here is what i have for this part:
Dim mypath = Application.StartupPath & "\User Passwords.mdb"
Dim password = "password" 'I do have an actual password, im just not going to put it out there
Dim connString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & mypath & ";Jet
[CODE].......................
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Dec 3, 2010
Means if i have two columns in database namely name & email i wanna search the users or email by entering either name or email on textbox then after clicking the search button record will be displayed in gridview ?can anybody tell me the select query for this ?
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