C# - Explain CheckBox Checkbox = (CheckBox)sender?
Sep 23, 2010While going through the checkBox I found there is written
CheckBox checkbox = (CheckBox)sender
on checkBox1_CheckedChanged event.
While going through the checkBox I found there is written
CheckBox checkbox = (CheckBox)sender
on checkBox1_CheckedChanged event.
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.
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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.
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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?
i have repeater
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and have code behind
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when i click chk_packages checkbox myCheckedChanged fired and i want single checkbox to get enable
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:
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CSS:
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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.
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 .....
i have 5 checkboxes in webform and textbox1. when i search the record using the date specified in textbox1
when i enter 11-Dec-2010 in Textbox1 and click on submit button then checkbox1, checkbox2, and checkbox3 will be disabled and unchecked. and after tat when i type 13-Dec-2010 in Textbox1 and click on submit button then checkbox1, checkbox4, and checkbox5 will be disabled and unchecked .....and all the checkbox of 11-Dec-2010 will be enabled for 13-Dec-2010 I M CURRENTLY WORKING IN ASP.NET (VB)
My Datbase structure :
ID Name Seats Date
1 Sumit 1,2,3 11-Dec-2010
2 Mili 1,4,5 13-Dec-2010
Example of this is that site have a look to know more : what i want : [URL]
I have a report page, that displays many rows, each row having its own checkbox with its value being an ID field from the database.This is for a bulk operation, that will be preformed on all the row's where the checkbox was checked.So if the user checks multiple boxes, hits a button, I need to send all the checkbox values to a controller's action that will take those Id's and process them.
View 3 RepliesI have an ASP.NET web form that has 6 checkbox. 1 checkbox is to call a Function to select all checkbox and show the message "You have selected" 6 "items" (in this case, 6 checkbox). If a user doesn't select the Select All checkbox, they can select or deselect other checkbox individually and the message will be "You have selected" # "items" I'm trying to do this in jQuery, but it's not working yet. Here's the script:
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The CSS class CheckBoxClass is not with the HTML input, that's why I'm looking for checkbox Id instead of checkbox class.
How bind the data through checkbox if checkbox checked is true
View 3 RepliesI just developing my web design skills.
I have a Datagrid with 2 textbox template columnsand two checkbox template columns. I have two other Textbox controls and two CheckBox controls. I have an Add button.
I want to be able to use the add button to update Datagrid Record inserting the Textbox control texts and the Checkbox Control status.
I am absoluetly confused. My web app has a checkbox list that my code is looking to see if the user checked it. Like I said, very simple stuff... Here's the code:
If (chkLaunch.Items(1).Selected) Then
Launch = 1
End If
The odd thing is that when it gets to this bit of code it just moves right past it like it wasn't checked. The same thing happens when I use a single checkbox (rather than a checkbox list). I've tried a bunch of different ways to make the code work but I'm left to the conclusion that I'm just not telling it to do this correctly. Either that or my project is messed up somehow.I say that my project is messed up because when I add an object to the page in Design mode, it doesn't write the source code. So when I save and close, all the modifications are mysteriously gone. This happens on multiple PC's...So, is the checkbox problem just me not doing something correctly or is my web project messed up?
when 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)
{
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How can i see if a check box was checked with razor. I am trying to do Request["checkbox"] and it returns nothing. (checkbox is the "name" of the checkbox).
View 5 Repliesmy page are 1 checkbox and 1 hidden label and 1 hidden panel. With the help of forum member raghav_khunger I've managed to write the code which shows panel and label when checkBox is checked. I've also added the code which is checking on every page post back the status of checkbox and hide/show panel and label appropriately. This is working fine.However when I add jQuery Safari checkbox plugin [URL] problems appear.
Looks like the code which is handling click event is doing reverse thing: when panel and label should be hidden are shown. I can change this but then there would be problems because of the second part of the code which is checking checkbox on page load. So when I check the checkbox nothing happens. I must uncheck it and label and panel appears. But if panel is uncheck the label and panel would be hidden because on next page load (when user clicks button next).As I said before the same code is working fine and it's test in all browsers (IE,FF,O,S,C). Maybe there is problem with checkbox plugin since it's in beta version.
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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:
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<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="chkRDR1" runat="server"/>
</ItemTemplate>
</asp:TemplateField>
=========================================================================================
Dim checkbox As CheckBox = CType(row.FindControl("chkRDR1"), CheckBox)
how to compare to checkbox list and show selected in first checkbox list
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I have a telerik grid with a checkbox. I am using a client template. There is a .DataBinding Ajax call attached. When the grid initially comes up, instead of a checkbox, it has the id value as text.If I hit refresh, the ajax call gets executed and when it comes back the checkbox appears. Is there any way to force the ajax call to happen when the grid initially paints so that I have a checkbox and not text..
View 1 RepliesI can not predenrmi all values of the checkboxes on the screen.Let me explain, I have 5 checkboxes for example 2 are enhanced not the others I'd like an array with all 5 checkboxes including 2 true and others false
With the tests done by me so far, I can only make me return the checkbox to true.
var checkbox = Request.Form [ "present"]. ToString (). Trim (). "'"); Replace ("''",
var assenti_presenti = Request.Form.GetValues ( "Submissions"). ToArray () [0];
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
}
}
}
I'm trying to adapt the following code to my needs :
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Now, I add product to cart from a dropdownlist value. I would rather that the product be added to the "cart" when it is selected by checkbox, only that I have no how to do I create a GridView called GridView1 and then in the gridview I create a checkbox.
objDR ( "Product") = ddlProdotto.SelectedItem.Text
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
}
}
}