Forms Data Controls :: CheckedChanged/OnClientClick In GridView?
Jan 13, 2010
I have a gridview with a template column that causes a postback on check changed in order to change display. It works fine:
[Code]....
And the code behind:
[Code]....
Works great, right? Well I wrote a small javascript file to make the checkboxes mutually exclusive, but now, while the post back refreshes and the javascript works, it does not show the popup extender anymore - it doesn't even enter the codebehind function.
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Similar Messages:
Jan 5, 2011
I have a page on which everything is loaded dynamically.
There is a Gridview (AutoGenerateColumns=true) and in the RowDataBound I check every column for a boolean datatype. If found I add a checkbox (autopostback=true) to the cell and register the CheckedChanged event.
The problem is, that I only get the CheckedChanged event, if I reload the grid in Page_Load:
protected void Page_Load(object sender, EventArgs e) {
LoadGrid();
}
But this is very expensive and causes that the db request will be executed twice. If I changed the code to what I want:
protected void Page_Load(object sender, EventArgs e) {
if (!this.IsPostBack)
loadGrid();
}
I get no CheckedChanged event.
Is there a possibility to get:
- Adding a Checkbox in RowDataBound
- Only "LoadGrid()" if it is no PostBack
- Getting the CheckedChanged event of the relevant row
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Nov 13, 2010
i have a column in a gridview with an imagebutton in a column. i added an onclientclick event so that a html confirm dialog shows with ok and cancel button, so that if you click cancel, the event should not continue, but if you click ok, the gridviews onrowcommand should fire. The grid is as follows:
[Code]....
[Code]....
but when i click the button on the grid, the alert comes up and if i select ok, i get the following exception:
[Code]....
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Mar 16, 2010
Why doesn't my "return confirm ()" work in my gridview template control ?
When I click on select the row the onclick event happens but the OnClientClick never happens.
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Jan 7, 2010
I have an image button in my gridview which I'm using to open a new window.
The code for my image button is:
[Code]....
This works fine, in that a new window is opened correctly, however, clicking the button causes a blank row to be added to the top of my grid.
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Oct 20, 2010
I have a GridView with a couple of buttons (asp:Button) in it (last row). Both of them have a CommandName attribute on them and this is handled server side in a grid_RowCommand event handler. Now, this works fine. However, I need to add client side code (Javascript/jQuery) to disable the two buttons when someone clicks on or the other. This is to prevent the user from double-clicking and creating potential havoc.
The way I have done this is by adding OnClientClick on both buttons which calls a javascript function that uses jQuery to disable the two buttons. This works fine, it's just that the page doesn't post back and so the RowCommand event handler never fires.
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Mar 10, 2011
I cant get this right
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Where PKey is a variable that holds the Datakey
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Mar 24, 2010
I'm using the OnClientClick to return the confirm message box. This is what i have so far:
[Code]....
I want to be able to pass one of the fields to it, such as a name, to enhance the confirmation. I want it to be more informative by adding the product or customer name. This should make it read more like this "Are you sure you want to delete the customer Jones?" I suspect I will have to use the {0} but don't understand what I will need to do to get this to work.
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Feb 25, 2011
on clicking the update button the validation summary should appear..but it is nt appearing instead the clientsript appear first, it should validate all the fieldsas required then it calls the clientsidescript..Do you want to save the modifcation?..here is my code below..
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Jul 9, 2010
I have a tab container with two tab panels. In the first panel, I have a ropdownlist inside a detailsView. The user should not go to the second tab panel with out selecting something in the dropdownlist other than the default N/A.
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Nov 11, 2010
I have a page for a product listing using a datalist control. I have customized the item template and added a link button that says Click to Order. I then databound that linkbutton with the onclientclick to the "ProductID" field, but I would like to set a variable or use some method of getting the productID of which item they clicked so I can add that product to an order. I cannot understand how to find out which item was clicked though... here is my code:
[Code]..
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Mar 12, 2010
I want to display a warning message and then open a panel on my form in response to a button click in my gridview.
I have used this on another form with a delete command in a gridview column and it work perfectly.
Why isn't it working with my select command ?
Here is the code:
<asp:LinkButton
ID="LinkButton3"
runat="server"
CommandName="Select "
OnClientClick
=
"return confirm='Are you sure that you want to delete this record ?');">Select</asp:LinkButton>
</ItemTemplate> </asp:TemplateField>
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Mar 1, 2011
I have a GridView, which features a a checkbox on each row (in a template field), where it calls a method upon checked changed (well, when they click submit - no auto post back)
My problem is, the checked change refuses to fire more than once - if I just change the check state of one checkbox in the grid, it works fine. More than one and it only fires the event once.
EDIT: Bit of code:
<asp:CheckBox ID="chkIncludedLocal" runat="server" Checked='<%# Bind("Included") %>'
Enabled="true" OnCheckedChanged="chkIncludedLocal_CheckedChanged" />
And in the event, I put a breakpoint right at the top to see how many times it fires
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Jun 18, 2010
I am using a list view inside that in item template i am using a label and a checkbox.I want that whenever user clicks on the check box the value should be updated in a table.i am using a datakeys in listview.on the basis of datakey value should be updated in the table. Query is:string updateQuery = "UPDATE [TABLE] SET [COLUMN] = " + Convert.ToInt32(chk.Checked) + " WHERE PK_ID =" + dataKey + " ";` also i want some help in displaying the result as it is inside the table.means if the value for column in table for a particular pkid is 1 then the checkbox shoul be checked.Here is the code snippet:
<asp:ListView ID="lvFocusArea" runat="server" DataKeyNames="PK_ID" OnItemDataBound="lvFocusArea_ItemDataBound">
<LayoutTemplate>
[code]...
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Jan 8, 2010
So I've got a databound grid view within a UpdatePanel.
the user can change the data within the gridview then click a save button to update the data within the database.
However in order to know which rows have been changed I have a textChanged event associated with each textbox, but the event isn't being fired.
Here's the ASP code:
[code]....
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Aug 13, 2010
I have a button inside my <ItemTemplate> in GridView and I want to call a javascript function on the OnClientClick of that button passing the DataItem value as a parameter of the javascript function
[code]....
If I will not put a parameter in CreateEditAddess() this works well but I need the parameter.
I know I can put the OnClientClick event value in OnRowDataBound event of the gridview but I don't want to put it in CodeBehind. It seems like the server tag is not parsed correctly.
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Mar 25, 2011
i need required field validators for few of textboxes and if everything is filled then on clk of submit btn i want to display an alert msg with sme text.so i kept required field validatiors for all txtboxes and in for alert i wrote javascript function...so first the script gets triggered and then the validators?? wat is the soln:?
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Aug 5, 2010
I have one RadionButton and a Button.
When I clik on RadionButton it fires it CheckedChanged Function perfectly.
But, when I click on the Button, it ALSO fires the same RadionButton ChechedChanged Function! I don't know why!!!
I want to avoid that! I don't want the button firing that RadioButton function.
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Jan 22, 2011
I am working on windows form using C# language and I need to trigger the Checkbox's CheckedChanged event.
What code do I need to write to call or trigger this event.
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Mar 3, 2010
I have a DropDownList with the visible property = false. When the user check's the checkbox I want the DropDownList to become visible. If the user unchecked the checkbox I want the DropDownList unvisible again.If there anyne who can help me. I'm using vb. I try this code in the checkedchanged event but didn't work.
[Code]....
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Feb 10, 2010
Check box's event CheckedChanged is not firing when uncheck the check box :This checkbox will help in checking the checkbox list and whne uncheck it will uncheck the checkbox list.I am using AJAX for this page post backs.Here is the html code for check box:
<asp:CheckBox
runat="server"
ID="ckbAll"
[code]...
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Feb 9, 2010
I have a simple form with 2 radio button grouped. I´m trying to hide/show a DropDown Listbox with the event CheckedChanged, but this event never fires...
<asp:RadioButton ID="AgruparPorCategoriaRadio" runat="server" GroupName="CategoriaFechaRadio" Text="CategorÃa"/>
<br />
<asp:RadioButton ID="AgruparPorFechaRadio" runat="server" GroupName="CategoriaFechaRadio" Text="Fecha" />
AND THE CODE BEHIND:
Protected Sub AgruparPorCategoriaRadio_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles AgruparPorCategoriaRadio.CheckedChanged
AnticipacionList.SelectedIndex = 0
AnticipacionList.Visible = False
TemasList.Visible = True
ActividadesGrid.DataBind()
End Sub
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Jul 21, 2010
I have a web form with two RadioButtons, both use the same GroupName, both have AutoPostback enabled and both have an event handler for CheckChanged. I use tem to show/hide a Panel further down the form which is contained in an UpdatePanel with Conditional Update set and with both CheckedChanged events in the Triggers collection:
[Code]....
Now, the problem arises when I set the Checked property of either RadioButton in Page_Load, which results in the even not firing for the button which was marked as Checked (the event for the radio button whose property was not assigned does get fired). In fact, upon inspecting the source there was no 'onclick' attribute declared for the input element that was marked as checked in the Page_Load, whereas the other RadioButton did have the 'onclick' attribute properly set.
The layout of the form doesn't allow me to place the radio buttons within the UpdatePanel, so that is out of the question. Is the behavior explained above normal? am I missing anything? Both events fire once the assignment to the Checked property is removed from Page_Load.
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Mar 22, 2010
I am creating an array of checkboxes :
1. chkresponse = new System.Web.UI.WebControls.CheckBox[cnumber + 1];
for (int
i = 0; i < cnumber + 1; i++){
chkresponse[i] = new System.Web.UI.WebControls.CheckBox();
chkresponse[i].CheckedChanged +=
new EventHandler(chkresponse_CheckedChanged);
chkresponse[i].AutoPostBack =true;
}
2. thereafter adding them to a panel
Panel1.Controls.Add(chkresponse[n]);
3. then added the checkedchanged event:
public
void chkresponse_CheckedChanged(Object sender, System.EventArgs e)
{Label1.Text = "response";}
but the event is never fired. the panel is insdie an updatepanel.
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Aug 11, 2010
I have a CheckBox on an ASP.NET Content Form like so:
<asp:CheckBox runat="server" ID="chkTest" AutoPostBack="true" OnCheckedChanged="chkTest_CheckedChanged" />
In my code behind I have the following method:
protected void chkTest_CheckedChanged(object sender, EventArgs e)
{
}
When I load the page in the browser and click the CheckBox it becomes checked, the page posts back, and I can see chkTest_CheckedChanged being called.When I then click the CheckBox again it becomes unchecked, the page posts back, however chkTest_CheckedChanged is not called.The process is repeatable, so once the CheckBox is unchecked, checking it will fire the event.I have View State disabled in the Web.Config, enabling View State causes this issue to disappear. What can I do to have reliable event firing while the View State remains disabled?Update:If I set Checked="true" on the server tag the situation becomes reversed with the event firing when un-checking the CheckBox, but not the other way around.Update 2:I've overridden OnLoadComplete in my page and from within there I can confirm that Request.Form["__EVENTTARGET"] is set correctly to the ID of my CheckBox.
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