Get A Null Value From Database To A Checkbox In Gridview?
Apr 6, 2009i have a checkbox in gridview.
<asp:CheckBox ID="chkStatus"
runat="server"
Checked='<%#GetStatus(Eval("VaccinationCompletedStatus"))
[code].....
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Asp.net - Generate Checkbox For Every Field In Database Using GridView?
May 8, 2012I 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].....
Sql - Make Gridview Checkbox Update Boolean Field In Database?
Nov 21, 2010I'm working in vb.net creating an asp.net web application. I have an SqlDataSource and a GridView on my page:
<asp:SqlDataSource ID="msgUnread" runat="server"
ConnectionString="<%$ ConnectionStrings:edinsec %>"
[code]....
As you can see I was playing with WithEvents but that didn't seem to help. In the above code all I was trying to get was some kind of reaction to the clicking of a checkbox - but nothing happens (no errors, either).
Make Gridview Checkbox Field Update Boolean Field In Database?
Feb 7, 2011There are lots of questions about this but I've not been able to solve my problem using the answers to any of them (after many, many attempts..)
I'm working in vb.net creating an asp.net web application. I have an SqlDataSource and a GridView on my page.
I want to change the DoNotMail boolean value represented by a Gridview checkbox and automatically update in the database if the checkbox is checked from 0 (False, Will Mail) to 1 (True, Won't Mail) here is the code I used. [code]...
is it possible to do a two way sync on the entire gridview when the user hits a button so you don't have to do an update every time a row is changed? because the user might check the box and then check another box then uncheck a box and it would be a lot of updates...
Initial State Of CheckBox Is Null
Jun 12, 2009I'm used to Access and have just created my first form in VB in Microsoft Visual Studio. I have added four check boxes to a form and they are connected to a SQL database and working fine with one exception: When I create a new record, the initial state of the checkbox is null so it shows a green square in the box and you have to click twice to actually place a check in it even though in the properties, the three state is set to false.
When I go into DataBindings/Advanced, and set the null value to zero, it fixes the problem with starting out as a null state in a new record, but then when I create a new record it carries the checked and unchecked state from the previous record over. (If it's checked in the current record and saved and then you click on new record, the checkbox stays checked.) I can't even figure out the correct syntax for manually setting the checkboxes to a false state in the new record event to fix it.
Adding Checkbox To Gridview?
Oct 5, 2011Im trying to add a checkbox to a gridview so that users can select multiple items, but the checkbox is not showing up. Here is my code below. I dont have datafield b/c its tie into a particular column.
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False">
<Columns>
<asp:CheckBoxField HeaderText="SELECT" />
[code].....
C# - Make Checkbox In GridView?
Feb 25, 2012I am having an issue with gridview and checkboxes in asp.net. I bind the grid at page load and add Attributes to the checkbox in the BindGrid() function:
chkSelection.Attributes.Add("onclick", "AbortPostBack(); __doPostBack('" + chkSelection.UniqueID + "','');")
AddHandler chkSelection.CheckedChanged, AddressOf ChkSelector_CheckedChanged
[code].....
Gridview Checkbox Field?
Feb 23, 2011I have a gridview with a template field and inside the template field is a checkbox field.My question is how do I capture the event when a checkbox is ticked and how do I reference that row which has been ticked?
View 1 RepliesUsing Checkbox As Gridview Control?
Aug 6, 2010I have a gridview that uses a stored procedure for its select statement. The stored proecedure accepts a varchar and a bit. I want a checkbox outside of the gridview to change the value of the bit. I've set the parameter to the checkbox but it doesn't seem to be working.
View 1 RepliesASP.NET - GridView - EditItem - Null Value For Integers?
Jul 16, 2009I am using a GridView in asp.net 2.0 and I want to perform inline editing. I am using an object datasource. Because I want to use validation controls on the integer fields in my gridview, I have made them into <TemplateFields> and added a datatype validator and a range validator. This allows me to either have a blank field, or an integer value between 0 and 999.I am trying to display a "-" when the value of the property is not defined. There is no Null for an integer, so I have decided to use -1 as the value to indicate a Null.I am reformatting the to display the "-" if the value is -1. I do that as follows:
<ItemTemplate>
<asp:Label ID="lblPC" runat="server" Text='<%# FormatIntegerToText(Eval("PitchCount"),"-") %>'></asp:Label>
</ItemTemplate>
In the code behind I have defined the function FormatIntegerToText as follows:
Protected Function FormatIntegerToText(ByVal value As Object, ByVal nullvalue As String) As String
' Make sure value is not null... if so, return "-"
If value = Null.NullInteger() Then
Return nullvalue
[code]....
I though I could do the following to reformat the value that is placed in the text box:
<EditItemTemplate>
<asp:textbox ID="txtPC" runat="server" Text='<%# FormatIntegerToText(Bind("PitchCount")) %>' width="25" Columns="2"></asp:textbox>
but when I do this I get a compilation error that Bind is not a recognized function.why is this not allowed, and how can I work around it?
Asp.net - One Checkbox To Control Gridview Rows?
May 11, 2012How can I implement the following:I would like to have a checkbox on the top of my gridview. When checkbox is checked should show all the hidden rows from the gridview but when is unchecked should only show the unhide ones.
I only need 1 checkbox at the top(not in the header of the gridview), I found couple of examples but all of the have checbox as coulumn and then added to the header as well.
Filter Gridview Rows With Checkbox?
Mar 6, 2011I would like to filter Gridview1 with, control checkbox, and code as "If GridView1 rows of column FirstName have value 'John' then show only this rows."I have somehow with network help write this code. But code is not working as it should, and also I do not know how to add controls also for other rows with values such as 'James', 'Paul'...
For Each x As GridViewRow In Me.GridView1.Rows
If Not x.Cells(0).Value = "John" Then
x.Visible = False
[code]....
How To Validate GridView Footer CheckBox
Aug 2, 2011[Asp.net / Vb.Net] How can I validate my gridview footer checkbox using Javascript. I have a gridview with footer having 8 checkboxes -(chkActive1,chkActive2,.....chkActive3) -
The condition I want to have is - The user need to check atleast 1 checkbox or else the transaction would not allow.
One Checkbox To Control Gridview Rows?
Apr 25, 2010How can I implement the following:I would like to have a checkbox on the top of my gridview.When checkbox is checked should show all the hidden rows from the gridview but when is unchecked should only show the unhide ones.
View 6 RepliesPopulate A Checkbox Field In A Gridview?
Feb 15, 2012I want to populate a checkbox field in a gridview.
I am using the Checked='<%# Convert.ToBoolean(Eval("Inactive")) %>' statement but the issue that I am facing is that in the database some records contain NULL for Inactive. If it encounters a 0 or 1 value it works fine but if NULL it throws an exception.
Kindly guide me how to populate the checkbox so that it should be unchecked even if the field is null.
VS 2010 GridView - Updatable CheckBox?
Jun 24, 2010I am putting together a very simple GridView, one of the columns is a CheckBox.I would like the checkbox to update the SQL table as it is checked, the field in my database is a bit field.Currently i have the following:
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" Checked='<%# Bind("Purchased") %>' AutoPostBack="true" />
</ItemTemplate>
</asp:TemplateField>
This allows the Checkbox to be checked and unchecked however it does not update my SQL Database. I have tried a couple of things but can't seem to get this to work. I am assuming i'd need to write a custom bit of VB around the 'OnCheckedChanged', i do not want an edit button on the page!
.net - Fincontrol In Gridview For Checkbox Checked Is Not Working?
Jul 26, 2010<asp:BoundField DataField="mail" SortExpression="mail" HeaderText="Com Rec">
<HeaderStyle Font-Size="X-Small" ForeColor="White" HorizontalAlign="Left" />
<ItemStyle Font-Size="X-Small" HorizontalAlign="Left" />
</asp:BoundField>
<asp:TemplateField HeaderText="Status Change">
<ItemTemplate>
[Code]...
Saving State Of Checkbox And Dropdownlist In Gridview?
Nov 30, 2010Firstly i'm not asking for the exact code here but the below is what i'm trying to do:I have a gridview with DropDownList and CheckBox and I have a button outside the gridview that will add a new row within the gridview.I have no problems with the adding row but I have a problem with saving the state of the checkbox/drop down list.Everytime I checked the checkbox and add a new row, all the DDL/CB will be reset.So how can I do it so that when I add a new row, the checkbox that I've checked before will still remain check.
View 3 RepliesVS 2008 GridView - Adding Another Column For CheckBox
Apr 1, 2009I just want to ask the following infor from you in relation to gridview... I have 3 Grids,
Grid A
Grid B
Grid C
Grid a has already a data but aside from the data in my grid A I want to add another column for a checkBox. Next, when the checkbox is check and I hit the button "Transfer" the row in the grid in where the additional column checkbox has been check will be transfer to grid B and the remaining data will be move to Grid C?
Syntax Error Null Check Datatable / Gridview Asp.net Vb?
May 21, 2010I have this code:Dim Result As New DataTable DataAdapter.Fill(Result)
'bind data to visible surname/name grid If Result.Rows.Count = 0 Then NoInputBottom.Text = "No Results. Please widen your search criteria and try again" NoInputTop.Text = "No Results. widen your search criteria and try again" Else
GV.DataSource = Result
GV.DataBind()
End If
I have also tried moving the check to the gridview like so:
If GV.Columns.Count = 0 Then
NoInputBottom.Text = "No Options Selected: Please select your search criteria and try again"
NoInputTop.Text = "No Options Selected: Please select your search criteria and try again"
End If
When I run the code. the noinput labels do not have value, the null check seems to be failing? Please can you tell me how to display a message if the search returned no reults.
Add CheckBox To GridView And When Checking Select Data Items?
Feb 8, 2011How can I add check box to gridview and when checking select data items?
View 3 RepliesAsp.net - Using Checkbox To Delete Row In Gridview With Code Behind And Stored Procedures
Aug 13, 2010[Code]...
I am using GridView. Because of my search code I am not able to use the automatic delete function that GridView has to offer. I clicked on GridView, said "Add New Column" and added a checkbox column. I want to be able to check one or more boxes and select a button that will delete those rows from the database using a stored procedure. Below is the ASP.net part of my code
[Code]...
Asp.net - Show Pop Up Menu From Database In Gridview On Each Gridview Row Items?
Dec 6, 2010How 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..
View 2 RepliesProgrammically Update A Bound Checkbox In A GridView Using An Asp:ButtonField In ASP.NET 2005?
Jan 6, 2012The GridView is bound to an Access Table, but I want to update the checkbox using the asp:ButtonField. The best I've been able to do is replace the checkbox with a string value. Below is the code I have now:
Protected Sub GridView1_RowCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles GridView1.RowCommand
If e.CommandName = "check" Then
'Enable Editing on the GridView
[code]....
Checkboxes Doesn't Post Back - Checkbox On GridView Always Returning False
Jan 22, 2012I have a GridView with a Checkbox on the first column: Code: The thing is that the Checkbox.Checked always returns False. How can I get the checked state of the Checkboxes in this scenario? Or what would be the best approach into updating the aforementioned column? P.S. Note that click on the checkboxes doesn't post back. Nothing happens on the page until the user clicks Save (and that is the intended behavior).
View 2 RepliesGetting The Value Of A Row In A Gridview After Selecting Its Checkbox Using Javascript - Vb- To Avoid Refreshing The Page At Each Select?
Oct 28, 2011I have aspx gridview with checkbox on evryrow, what is required is whenever we check any of the rows, a query should be launched to change the specific agent -each row consist of agentID, Pass, Status- to Paid Status. using javascriptWhat I need to know is how to loop to get the Checked row and get the ID of the row checked so that I can get THe ID of the Agent in thos row so that I can update its status.using javascriptI found something similar on stackflow:t GridView selected row DataKey in JavascriptBut it is not my case, what is needed is at the check of a checkbox a javascript function should launch through which I could update the selected row in grid view after having the index of this row and this all to avoid refreshing the page.
View 2 RepliesUsing Checkbox To Delete Row In Gridview With Visual Basic.net Code Behind And Stored Procedures?
Apr 29, 2011Tools for my website.Visual Studio 2010SQL Management Studioasp.netvisual basic.netI am using GridView. Because of my search code I am not able to use the automatic delete function that GridView has to offer.I clicked on GridView, said "Add New Column" and added a checkbox column.I want to be able to check one or more boxes and select a button that will delete those rows from the database using a stored procedure.
View 1 RepliesDatabase Sql Server Compact Edition 2005 - Save In A Database - Column Cannot Contain Null Values
Oct 15, 2009Ive created one database Sql Server Compact Edition 2005, with one table ("Cliente") I know that I can created my database good, but i have a problem saving information since three textbox, in my table(With columns "Nombre" "Apellido" "Cliente". In my form there is a button save ("Guardar"). When I do click in my button appear the next message : "The column cannot contain null values. [ Column name = Nombre,Table name = Cliente ] " and happen the same with apellido and Id_Cliente. And this happen becouse my code cant save the information....
This is the code
Option Explicit On
Option Strict On
Imports System
Imports System.IO
Imports System.Data
[CODE]...
And the code for my button is:
Private Sub cmdguardar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdguardar.Click
Dim myconnection As SqlCeConnection
Dim mycommand As SqlCeCommand
[CODE]...
Add Null In Access Database?
Feb 10, 2010I want to add a null binary field in Database.[code]...
View 2 RepliesCheckbox Items From Database?
Jul 24, 2011is it possible to get a list of checkbox items from the database?
View 8 Replies