MVC :: Filter When All = "false" When No Checkbox Is Checked
Feb 11, 2010I have an array of checkboxes, and trying to filter them, but when no checkbox is checked, it throws an System.ArgumentNullException
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Forms Data Controls :: Checkbox.Checked = False, Even Though Checkbox In The Gridview Is Checked?
May 3, 2010I 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]....
Forms Data Controls :: GridView : Checkbox : Checked Value Is Still False After Checked The Checkbox?
Mar 11, 2011<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="chkRDR1" runat="server"/>
</ItemTemplate>
</asp:TemplateField>
=========================================================================================
Dim checkbox As CheckBox = CType(row.FindControl("chkRDR1"), CheckBox)
Forms Data Controls :: Gridview With Checkbox.checked Always False
Jan 13, 2010I 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
}
}
Jquery Dialog Interferes With Input Checkbox Checked Property - Always False
Jan 15, 2010I 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.
Data Controls :: Checkbox In GridView Always Returning Checked False In Code Behind
Nov 6, 2013I'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]......
Data Controls :: CheckBox Inside GridView Has Value False Even If Checked On Button Click
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
Data Controls :: CheckBox Inside GridView Always Checked False When Accessed On Button Click
Mar 10, 2014There 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.
Check If A Checkbox Is Checked - Convert Tobool Fails Since Its Lower Case "false"?
Aug 16, 2010convert.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"]))
{
}
Show Html Checkbox As Neither Checked Or Non-checked?
Oct 22, 2010I have an html checkbox that controls a list of checkboxes. I want this checkbox to display in a sorta "null" state where it is neither true nor false.
<HeaderTemplate>
<div style="width:90px">
Toggle:
<input id="chkAll"
onclick="javascript:SelectAllCheckboxes(this);"
runat="server" type="checkbox" />
</div>
</HeaderTemplate>
Web Forms :: Uncheck Checkbox Using Client Side Code When Other Checkbox Is Checked?
Mar 7, 2011I 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?
Web Forms :: Bind The Data Through Checkbox If Checkbox Checked Is True?
Jan 15, 2011How bind the data through checkbox if checkbox checked is true
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Aug 26, 2010In the code I have here, I need to set the checkbox state from a database but I dont know the properties:
[Code]....
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Aug 17, 2010i am having one online test application in default page i have 1st question and 4 options will come and i am having two linkbuttons one is next and the other is previous and after selecting the answer of 1st question and after clicking the next button it is goin to 2nd question that is in the same page and error is this one if i select 1st answer of 1st question the same answer is repeating in 2nd question i want to uncheck this and in 1st question the answer selected should be checked only.
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May 7, 2015when i checked the checkbox in parent gridview, all checkbox in child gridview will be checked.
how can i select the checkbox of child gridview checkbox in the when i select the checkbox from the parent gridview?
code behind
protected void OnCheckedChanged(object sender, EventArgs e)
{
[Code].....
Getting False Value Of Checkbox
Jan 19, 2010public 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
}
}
}
C# - Get False Value Of Checkbox
Jan 19, 2010public 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
}
}
}
C# - Check If All Checkbox Is Selected = False
Jan 4, 2011foreach(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?
Get Value Of Dynamically Checked Checkbox?
Dec 22, 2010In my page,on one button click ,i am creating a checkbox dynamically and in other buton click i need whether the checkbox is checked or not.
For me every time it is showing as not checked eventhough i cheked the checkbox..
Can Validate That A Checkbox Has Been Checked
Feb 13, 2010Using Asp.net Webforms how can I validate that a checkbox has been checked. (I cannot do a postback) has to be in javascript (either custom - working with the existing validation controls for other fields. or using a .net validation control)
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Feb 5, 2010how can validate the checkbox is true or false...
View 6 RepliesGet Checkbox Checked Event In Gridview
Oct 14, 2010I have a gridview with one column of checkboxes and other columns with different custom controls. What I want is that when a checkbox is checked an event is triggered which toggles the visibility of other elements in the row .
View 1 RepliesMVC :: Retrieve ID And Verify If Checkbox Is Checked Or Not?
Jan 8, 2010I have the following code in my view
[Code]....
what is the code to retrieve the id associates with each checkbox and read if whether each checkbox is checked or not in the controller action(I will need to get the status in both conditions, checked or unchecked )?
C# - Get Checked Checkbox While Update From Gridview?
Apr 1, 2011in my project i use chekbox list...but while m get update from gridview i can't get chek chekbox.
SqlConnection Conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ims"].ConnectionString);
Conn.Open();
DataSet ds1 = new DataSet();
string querry = "Select po_tax from purchase_order where po_id='" + Request.QueryString["po_id"] + "'";
// ds1 = obj1.SelectQuery(querry);
SqlCommand cmd = new SqlCommand(querry,Conn);
cmd.ExecuteNonQuery();
SqlDataReader rdr;
rdr = cmd.ExecuteReader();
if (rdr.Read() == false)
{
//No Records
rdr.Close();
Conn.Close();
Label3.Text = "No record found";
return;
}
else
{
CheckBoxList chkbx = (CheckBoxList)form1.FindControl("CheckBoxList1");
rdr.NextResult();
if (rdr.IsClosed == false)
{
while (rdr.Read() == true) [problem ocures here. it does not executes i.e does not go inside curly braces. why?]
{
ListItem currentCheckBox = chkbx.Items.FindByValue(rdr["po_id"].ToString());
if (currentCheckBox != null)
{
currentCheckBox.Selected = true;
}
}
}
rdr.Close();
//string[] items = returned_value_from_db.Split(',');
string[] items = sb.ToString().Split(',');
for (int i = 0; i <= items.GetUpperBound(0); i++)
{
ListItem currentCheckBox = chkbx.Items.FindByValue(items[i].ToString());
if (currentCheckBox != null)
{
currentCheckBox.Selected = true;
}
}
}
Conn.Close();
Web Forms :: Checkbox Checked In Code Behind?
Apr 6, 2010Im having a datagrid which consist of checkbox.
[Code]....
[Code]....
Even though im checking the checkbox im not the checkbox checked in code behind.