Getting False Value Of Checkbox
Jan 19, 2010
public CheckBox[] cb = null;
int z=0;
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
cb = new CheckBox[count - k];
//Database code.........
while (dr.Read())//read data from access database
{
cb[z] = new CheckBox();
cb[z].Text = dr["Member_Name"].ToString();
Panel2.Controls.Add(cb[z]);
Panel2.Controls.Add(new LiteralControl("</br>"));
z = z + 1;
}
}
}
protected void Button6_Click(object sender, EventArgs e)
{
for (int x = 0; x < cb.Length; x++)//ERROR IS HERE:Object reference not set to an instance of an object.
{
if (cb[x].Checked == true)//EVERY TIME I GOT FALSE VALUE
{
//processing check boxes
}
}
}
View 1 Replies
Similar Messages:
May 3, 2010
I have a GridView that I was previously populating via an ObjectDataSource, and this code was working perfectly (ie, when the checkbox was checked Checkbox.Checked = true):
CODE BEHIND:
[Code]....
[Code]....
View 9 Replies
Mar 11, 2011
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="chkRDR1" runat="server"/>
</ItemTemplate>
</asp:TemplateField>
=========================================================================================
Dim checkbox As CheckBox = CType(row.FindControl("chkRDR1"), CheckBox)
View 2 Replies
Jan 19, 2010
public static CheckBox[] cb = null;
int z=0;
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
cb = new CheckBox[count - k];
//Database code.........
while (dr.Read())//read data from access database
{
cb[z] = new CheckBox();
cb[z].Text = dr["Member_Name"].ToString();
Panel2.Controls.Add(cb[z]);
Panel2.Controls.Add(new LiteralControl("</br>"));
z = z + 1;
}
}
}
protected void Button6_Click(object sender, EventArgs e)
{
for (int x = 0; x < cb.Length; x++)//ERROR IS HERE:Object reference not set to an instance of an object.
{
if (cb[x].Checked == true)
{
//processing check boxes
}
}
}
View 3 Replies
Jan 4, 2011
foreach(Listitem item in CheckboxList1.Items)
{
if(item.Selected == true)
{
return true;
}
}
return false; Is there a better way to check if all checkbox selected is false?
View 1 Replies
Feb 5, 2010
how can validate the checkbox is true or false...
View 6 Replies
Jan 13, 2010
I a using Gridview bind to a dataset. For this example, I am only setting up two columns.
1. Edit button
2. A template field that will display "No" and in Edit mode will show a checkbox.
When I run this code... the page is displayed... I click on the edit button... the row changes to edit mode and I CLICK the checkbox (can see a it checked).Then click on "Update" Button... which takes me to GridView1_RowUpdating event. If I check the status of the "box"... it's checked status is ALWAYS false Why?
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="Member_Id"
onrowupdating="GridView1_RowUpdating"
onrowediting="GridView1_RowEditing">
<Columns>
<asp:CommandField ShowEditButton="True" />
<asp:TemplateField HeaderText="IsPaid" SortExpression="status">
<EditItemTemplate>
<asp:CheckBox ID="chkIsPaid" runat="server" />
</EditItemTemplate>
<ItemTemplate>
<asp:Label id="Label1" Runat="server" Text='No'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
</form>
</body>
</html>
CodeBehind:
public partial class Default3 : System.Web.UI.Page
{
private DataSet dsEmpList = new DataSet();
protected void Page_Load(object sender, EventArgs e)
{
BindGridView();
}
protected void BindGridView()
{
dsEmpList = GetEmpList();
GridView1.DataSource = dsEmpList;
GridView1.DataBind();
}
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
CheckBox box = (CheckBox)GridView1.Rows[e.RowIndex].FindControl("chkIsPaid");
if ((box != null) && box.Checked)
{
//do whatever
}
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex; // turn to edit mode
BindGridView(); // Rebind GridView to show the data in edit mode
}
}
View 6 Replies
Jan 15, 2010
I came across the following given a asp.net page containing
<div id='test'>
<input type='checkbox' id='ch1' name='ch1' runat=server />
<input type="button" id="view_test" />
</div>
and the following jquery code to show this div in a dialog
$("#view_test").click(function() {
$("#test").dialog({ show: 'slide', width: 600, title: 'View Check' });
});
If view_test button was clicked, initializing the dialog, before the form post backs the checkbox ch1.Checked property in .Net is always False. However if you just postback without initializing the dialog it works as expected.
View 2 Replies
Nov 6, 2013
I'm having trouble getting selected rows in asp.net. i tried to debug it and found out that the answer to "chkRow.Checked" is always false eventhough it is selected. I'm new to asp.net.here is my code.
Protected Sub btnApproveYes_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnApproveYes.Click
Dim modID As String = String.Empty
For Each row As GridViewRow In gvModule.Rows
[Code]......
View 1 Replies
Dec 8, 2012
<asp:GridView ID="GridView1" runat="server" >
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="myCheckBox1" runat="server"/>
[Code] .....
always returns a false value even though if it is checked
Dim myCheckBox As CheckBox = CType(row.FindControl("myCheckBox1"), CheckBox)
If myCheckBox.Checked = True Then
End if
View 1 Replies
Mar 10, 2014
There is a Gridview in my web page with select button as below:
<div class="test01" style="height:200px;overflow-y:scroll;overflow-x:hidden" align="center">
<asp:GridView Width="100%" ID="GAsset" runat="server" AutoGenerateColumns="False" DataKeyNames="AssetId">
<Columns>
<asp:BoundField DataField="AssetId" HeaderText="AssetId"/>
<asp:BoundField DataField="AssetName" HeaderText="Asset Name"/>
[Code] ....
When I am selecting any row of Gridview using checkbox and clicking on "Select" button, It is showing ch.checked= false
code is below:
protected void btnSelect_Click(object sender, EventArgs e) {
foreach (GridViewRow row in GAsset.Rows) {
CheckBox ch = (CheckBox)row.FindControl("chkSelect");
if (ch.Checked && ch != null) {
string key = Convert.ToString(GAsset.DataKeys[row.RowIndex].Value);
[Code]....
I also tried debugging my code using break points but it is showing ch.Checked = false everytime, dont know why.
View 1 Replies
Nov 26, 2010
Basically when the page runs, if i tick the checkbox it always runs through the "if ticked=false" It always used to work and i cant figure out what i changed.
[Code]....
View 1 Replies
Aug 16, 2010
convert.toboolean(request.form["mycheckbox"]
but since the value is 'false', it doesn't seem to cast to boolean. What should I do? I don't like checking for == "false" and then converting to boolean. is there a cleaner way? Update All I am doing is:
if (Convert.ToBoolean(request.Form["somecheckbox"]))
{
}
View 3 Replies
Feb 11, 2010
I have an array of checkboxes, and trying to filter them, but when no checkbox is checked, it throws an System.ArgumentNullException
[Code]....
View 1 Replies
May 27, 2010
Do you know why it's FALSE
when I check the value from DataBinder.Eval(Container.DataItem, "Type") i've "Checkbox" so I wonder what is wrong there?
View 3 Replies
Aug 12, 2010
Suppose a CheckBox has name "cbFoo". When it is checked, ViewData["cbFoo"] returns "true,false" instead of just "true".
View 11 Replies
Sep 23, 2010
While going through the checkBox I found there is written
CheckBox checkbox = (CheckBox)sender
on checkBox1_CheckedChanged event.
View 6 Replies
Aug 20, 2010
I want to select all checkBox in Gridview when click to header checkBox.I have created design such that CheckBox is not available to header of Gridview.It is in other table. Below is design of gridview.
[Code]....
View 9 Replies
Jun 29, 2010
I am dynamically binding a typed list to a GridView control.
The Grid View Control is in an asp.net page that is wrapped in an asp:UpdatePanel (Ajax).
The first column contains a checkbox control.
Only one checkbox may be checked in this column.
If the user checks a checkbox, all other checkbox must be unchecked.
I am trying to achieve this using client-side script without success.
In the handler for the GridView's RowDatabound event, have attempted to add an attribute to the CheckBox contained within the cell.
[code]....
View 2 Replies
Mar 7, 2011
I have two checkboxes on my form.
- How can I uncheck a checkbox using client side code when the other checkbox is checked?
- Is there a way to check server side on form submission that at least one check box is checked?
View 3 Replies
Dec 2, 2010
i have repeater
[Code]....
and have code behind
[Code]....
when i click chk_packages checkbox myCheckedChanged fired and i want single checkbox to get enable
View 2 Replies
Nov 12, 2010
I had problems with jQuery fancy checkbox plugin [URL]
However after that I want to "combine" 2 plugins, the one mentioned in first post:
[URL]
and this one ("Safari"):
[URL]
So I've changed the picture of checkbox and wanted to add hover effects as it is shown in second link (according to state of checkbox).
However since I'm quite noob with jQuery (and JS) the thing only works fine on "default" mode, when checkbox is not selected or checked on page load.
JS:
[Code]....
CSS:
[Code]....
View 14 Replies
Mar 4, 2010
I am displaying my table data using listview control. It is working fine.
Now I would like to add a checkbox in front of every item so then when user checks the checkbox and click on delete button inside or outside the listview control then i want all the records to be deleted.
View 6 Replies
Aug 12, 2013
I have 5 checkbox columns in my grid .. like
Id     Chk1  Chk2   Chk3  Chk4 Chk5
I want select only one checkbox among 5 checkboxes if user selects one checkbox another which are checked are need to uncheck. How can i do this in client side .....
View 1 Replies
Mar 26, 2016
I have an approve button.on clicking on this button it should show that an inactive value is present .Onclicking yes conformation it should save the data or else clicking on no conformation should return false; how i will do that?After alert it always submit the data.Â
protected void ibtApprove_Click(object sender, ImageClickEventArgs e)
{
string otherAffiliateName = txtRequestedAffiliate.Text;
int inActiveAffiliates = new BLRating().InActiveAAffiliateChecking(otherAffiliateName);
if (inActiveAffiliates > 0)
[code]...
This is the code i used.how i wiil stay back on Confirm 'no' click?
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