Web Forms :: Keep A Check-box Checked Or Uncnchecked?

May 30, 2010

I have a check-box on an asp.net page. I want it to be keep checked or un-checked untill user toggels it, although user exits or reloads the page many times.

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I have a check box in the grid.IF IsChecked has a value checkbox should be checked else not.Should i check the check box in the ItemDataBound event or will it get checked automatically.

<asp:DataGrid Runat="server" ID="gridProduct" AllowPaging="True">
<Columns>
<asp:TemplateColumn HeaderText="Employee Name">[code]....

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i generated dynamic checkbox n placed it in table cell( <td runat='server' id="trial"></td>) ,

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i recieve exeception :System.NullReferenceException was unhandled by user code

[Code]....

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finding all check boxes in asp.net grid view is checked or not.

Depending on this I have to grayed out a button...

I have to enable the button depending on all check boxes are checked..

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I have a web form with a gridview control on it. The GridView has a column of check boxes. Before the web form closes I need to check if more than one check box was checked. If more than one check box was checked, then I need to display a popup message box informing the user that only one check box should be checked? I need to check to see if more than one check box was checked, when a "Submit" button on the form is pressed.

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I am using following code on SelectedIndexChanged of Dropdownlist in GridView for filling txtCallCompletion.Text. When i am selecting first time it is coming correct and i am changing value of txtCallCompletion then i am selecting second checkbox then previous checked checkbox's txtCallCompletion value will be same as it is.

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[code]....

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I have a gridview that returns several records for the same user and each record has a column with a check box. I need to allow the user to choose only one to check. Also one check box is always supposed to be checked. What is the best way to do it? I was thinking of writing a stored procedure that checks if only one is checked, and then returns true or false. I think there is a more efficient way to do it...

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I need to validate textbox is not empty if check box is checked.

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Nov 18, 2010

I was trying to find out if there are any check boxes checked in the datagrid, if non of them is checked it should show me an alert to select atleast one.

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Feb 8, 2011

Here's part of my markup

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Here's my code

[code]....

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Forms Data Controls :: Can Check That A Row In Datagrid (not Grid View) Is Checked Or Not

Jan 19, 2010

I have a data grid and inside that datagrid check box and created using template field.

How can I check that a row in datagrid (not grid view) is checked or not.

For gridview we can use the below in codbehind file,

Boolean isChecked = ((CheckBox)(Row.FindControl("chkDelete"))).Checked;

For datagrid how to achieve this...

My aspx code is

<asp:DataGrid ID="dg1" runat="server">
<Columns>
<asp:TemplateColumn HeaderText="select">
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</asp:DataGrid>

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Feb 18, 2010

I have a asp.net treeview control that I need to be able to set a parent node to partially checked to show that child nodes are checked. Basically I need a 3 state or multi-state checkbox. All I can see from looking through the code is ways to set checked true or false.

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I have group of radio buttons, each group ranges from 5 - 27 radiobuttons. And if any radio button in a group is checked I store 1 in db else I store 0. Now I'm checking each radiobutton using if loop to see if they are checked and set database value. I'm also trying to use the code below. Is there a good/better approach to check if they are checked or not?Current code:

'rname is radiobutton prefix for a given group
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[code]...

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Mar 9, 2011

I generate my check boxes dynamically:

for (int i = 0; i < dtCommon.Count; i++)
{
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And when the save button is pressed I call this function:

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{

}

How do I know which check boxes the user has checked?!

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I am looping through all the posted data on my website and grabbing the values, this will then be used later on. The user is going to put 2 radio buttons on the page, one with a correct answer and one with an incorrect answer. I need to know how to see if a Radio Button is checked or not based on the posted data.

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VS 2005 Unable To Check The Checked Value Of A Dynamic Checkbox Within A Gridview?

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I can't seem to check the checked value of a dynamic checkbox within a gridview. I've tried dozens of ways to test the checkbox's checked value, but it still returns false, when it should return true. If I change the checked value to true in the ASPX web page, then it will return true, even when it should return false. Any ideas? I've tried many different ways of checking the checkbox value including the one below.

MailingLabels.aspx

Code:
<asp:GridView ID="GridView" runat="server" AutoGenerateColumns="False" DataKeyNames="NewClientID">
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[code]....

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note that the scenario is ASP.NET Webforms + Master - Content page which mess up the ids.

I have, say, three checkboxes

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<asp:CheckBox ID="chkConsultantEnvironment" runat="server"
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<asp:CheckBox ID="chkConsultantSafety" runat="server"
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visible if any of the checkboxes are checked.

hidden if all of the checkboxes are unchecked.

I am planning to use jQuery since I am selecting by class name. I could do it with jQuery.each on the class='company' by checking each for a checked flag.

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Nov 24, 2010

i have repeater control in my page ,and it contains Questions and its options in check boxes . i want to store that information if user refresh the page

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In my asp.net website; i have REPEATER control having child control checklistbox , dynamically generates in code behind.I would like to know how can i write javascript function where i have to check at least one checkbox should be checked.

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how can i checked the checkbox in parentGridview whenever i checked a checkbox in childGridview?

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I have a grid view with two columns A and B. Column A has Checkboxes and Column B has numeric values(int). When user checked checkboxes the checked checkboxes column B have to added and displayed in a Label.

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Data Controls :: Dynamically Check Checkbox In Second DataList If It Is Checked In First DataList

Dec 3, 2013

Here is my code through which i can generate dynamically 2 checkbox group  

DataTable dt = new DataTable();
DataList1.DataSource = dt;
DataList1.DataBind();
DataList2.DataSource = dt;
DataList2.DataBind();
  Design Page  

[code]....

  There is two checkbox group which have same datasource, so in both case same checkbox are showing and also same event is firing for both. Here is the event code  

protected void CheckBox_CheckedChanged(object sender, EventArgs e)
{
string OpService = ((CheckBox)sender).Text;
}
 
Now what i want to do is, while check one checkbox from the 1st checkbox group the same checkbox should be selected from the second checkbox group automatically, also if i deselect one checkbox that should be deselect from both checkbox group.

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Check If A Checkbox Is Checked - Convert Tobool Fails Since Its Lower Case "false"?

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"]))
{
}

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Forms Data Controls :: Checkbox.Checked = False, Even Though Checkbox In The Gridview Is Checked?

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]....

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