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Data from entity framework displayed in javascript/Jquery dialog

I have a problem, and looking for a solution for 2 days
Target : Create/edit client... in HTML build a dialog with and asp fields with clientIDMode static
<div id="divDialog" runat="server" clientidmode="Static" style="display: none;">
<div class="DialogFields">
<asp:Label ID="Label1" runat="server" Text="Firstname"></asp:Label>
<br />
<asp:TextBox ID="tbxFirstName" runat="server" ClientIDMode="Static"></asp:TextBox>
</div>
...
In script
$("#btnShowDialog").click(function () {
openDialog();
});
function openDialog() {
$("#divDialog").dialog('open');
$("#divDialog").parent().appendTo($("form:first"));
}
When I click the button btnShowDialog it works fine... But
Beneath it I have a gridview within it a edit button (asp:Linkbutton) with a event to the codebehind it looks like:
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="Edit" OnCommand="Edit_Click" CommandArgument='<%#Eval("RelationID") %>'
runat="server"><img src="../images/Edit-item.png" alt="Edit" /></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
In codebehind take the parameter from commandargument and fire LoadInfo (specific data to all the fields in de dialog).
LoadInfo(e.CommandArgument != null ? int.Parse(e.CommandArgument.ToString()) : -1);
but no way I get the dialog open.
I tried
ClientScript.RegisterStartupScript(this.GetType(), "Popup", "openDialog();", true);
and
ScriptManager.RegisterStartupScript(this.Page, this.GetType(), "script", "openDialog();", true);
after this LoadInfo, push btnShowDialog button and it opens the dialog and all data perfect in place.
Also tried the other way around as Directly to Jquery function, get all data loaded and open the dialog. 2 problems, loading in codebehind was not even started before the dialog opens. and I only can get a static function in the codebehind.
A lot of ground to cover for me, but can any body help me out (even for a part).
...Thanx

If I understand your question correctly, you are trying to fire some client scripts (openDialog) from the server side, but they wont fire?
Try placing your page in an update panel, lets assume that we name the update panel "MyUpdatePanel". And then refer to the update panel like this:
ScriptManager.RegisterStartupScript(MyUpdatePanel, MyUpdatePanel.GetType(), "MyUpdatePanelScript", "openDialog();", true);

Calling c# from JS via button

So what I want to do is click on a button which will cause JS code to run which will cause another button to click and button #2 will be runat="server" and cause a C# function to run onClick.
But using the below does not cause the C# function to run even though simply clicking the button2 does cause it to run.
function button1_click() {
document.getElementById('button2').click();
__doPostBack('#button2', 'onclick');
$('#button2').trigger('click');
// neither worked (tried them seperately)
}
<asp:Button runat="server" Visible="true" text="you should not see this" ClientIDMode="Static" ID="button2" onclick="button2_Click" formnovalidate />
Useful knowledge:
- button one is in a client form
- button two is in a runat="server" form

This code
$('#button2').trigger('click');
should work.
Have you checked that the ID 'button2' is not changed during runtime?
Sometimes, when using master pages or user controls, the client ID of an element with runat="server" attribute will get a prefix at run time.
Use a debug console (depends on your browser, try pressing F12) to check the effective client ID.
Also, have you checked that button1_click() function is actually called?

Trigger Javascript for a Server side Checkbox

I have a situation where i am performing some server action the click of the checkbox and then redirecting the user to another page. But the problem is, After i click the checkbox, it is taking time to redirect as it is slightly slow and hence the users are able to click on other checkboxes. I want to either disable the whole page or disable all the Check boxes. I wrote a javascript but it gets triggered only when the page is loaded again.
My Html :
<div>
<asp:CheckBox ID="checkbox1" runat="server" OnCheckedChanged="checkbox1_CheckedChanged" AutoPostBack="true" CssClass="chk-facet-checkbox"/>
<asp:CheckBox ID="checkbox2" runat="server" OnCheckedChanged="checkbox2_CheckedChanged" AutoPostBack="true" CssClass="chk-facet-checkbox"/>
<asp:CheckBox ID="checkbox3" runat="server" OnCheckedChanged="checkbox3_CheckedChanged" AutoPostBack="true" CssClass="chk-facet-checkbox"/>
</div>
<div id='blockerdiv'>
</div>
My Jquery :
if ($(".chk-facet-checkbox").is(":checked")) {
$('.blockerdiv').show();
//Code to show the 'blockerdiv' as an overlay blocking the whole page
// All we need to do is show the blockerdiv. There is already Code to take care of the overlay
}

Try adding:
$(".chk-facet-checkbox").attr("disabled", true);
and so:
if ($(".chk-facet-checkbox").is(":checked")) {
$('.blockerdiv').show();
//Code to show the 'blockerdiv' as an overlay blocking the whole page
// All we need to do is show the blockerdiv. There is already Code to take care of the overlay
$(".chk-facet-checkbox").attr("disabled", true);
}
This disables all checkbox inputs with that class.

You can Use jquery.blockui.js
Then simply use $.blockUI and $.unblockUI functions to block and unblock the UI according to your need.

Creating a Button Click Event and Validating TextBoxes using Javascript

I am having so much trouble with this. I have looked everywhere so I hope someone can either explain to me how to do this or show me. Here's my problem:
I have a DataGrid filled with DataBound Items (ItemTemplate) which was created using ASP.Net.
My reason for the ItemTemplates over a regular DataBound field is to enable the Edit Mode of the DataGrid. In my ItemTemplates, I have labels to display the data and two option buttons (Edit/Delete). I've got the buttons working in the code behind (C#).
Edit places the DataGrid in Edit Mode. In the EditItemTemplates I've got DropDownLists, TextBoxes, and a Save button in place of the Edit button.
The Save button also works with the code I've written for it. All-in-all, the DataGrid works beautifully and displays everything neatly. However, there is one final job I want the Save button to do: I want it to check the TextBoxes and validate that the values entered match the criteria I have set (keep in mind that these are in EditItemTemplates).
I have Javascript already written that will check for validation. I want a modal window (that I have already set up) to display and I want the CSS of the TextBoxes in question to change.
I want to do this using Javascript but my problem is that I can't check for the Save button to create the Click event and I can't 'locate' the TextBoxes to validate them. Is there a way I can 'find' those elements while the DataGrid is in Edit Mode?
Here's a small bit of the code used to create the DataGrid if it helps:
<asp:DataGrid ID="dgCamsizer" CssClass="data" runat="server" AutoGenerateColumns="False"
GridLines="None" OnItemCommand="dgCamsizer_ItemCommand" ShowHeader="true">
<Columns>
<asp:TemplateColumn HeaderStyle-CssClass="infoHeaderDG">
<HeaderTemplate>
Operator</HeaderTemplate>
<ItemTemplate>
<asp:Label ID="Operator" Text='<%# DataBinder.Eval(Container.DataItem, "Operator") %>'
runat="server" /></ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="EditOper" Width="40px" Text='<%# DataBinder.Eval(Container.DataItem, "Operator") %>'
runat="server"></asp:TextBox></EditItemTemplate>
<HeaderStyle CssClass="infoHeaderDG"></HeaderStyle>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderStyle-CssClass="infoHeaderDG">
<ItemTemplate>
<asp:Button ID="Edit" Text="Edit" CommandName="Edit" runat="server" /></ItemTemplate>
<EditItemTemplate>
<asp:Button ID="Save" Text="Save" CommandName="Save" runat="server" /></EditItemTemplate>
<HeaderStyle CssClass="infoHeaderDG"></HeaderStyle>
</asp:TemplateColumn>
</Columns>
</asp:DataGrid>
Perhaps I should re-phase my question: I managed to 'find' the TextBoxes thanks to Zetlen. I've also managed to get the values. Now... How do I use those values to test for validation?
Here is the code I used to get the values:
$("#<%=dgCamsizer.ClientID %> :text").each(function () {
alert($(this).val());
});

ASP.NET webforms are hard to work with in JavaScript, because the IDs of your HTML elements change during the page lifecycle! The input you're calling "EditOper" will get an HTML ID of something like "dgCamSizer_ctl102_EditOper". One thing you can do is collect these elements on pageload in a cache of DOM element references. I recommend using jQuery or a similar DOM querying library.
<script type="text/javascript">
$(document).ready(function() {
var $editorElms = {},
idSeparator = "_"; // the underscore is ASP.NET's default ID separator, but this can be changed if you wish with the IDSeparator property.
$('#dgCamSizer input').each(function() {
$editorElms[this.id.split('_').pop()] = $(this);
});
// now you can access every input using the $editorElms hash.
// e.g.
function someValidationRoutine() {
if (!$editorElms.EditOper.val()) {
someErrorDisplayer("EditOper must not be blank.");
return false;
}
}
})
</script>
And, again using jQuery, the Save button shouldn't be too tough to find.
var $saveButton = $('#dgCamSizer :submit[value=Save]');
So you can bind the event that way:
$saveButton.click(function(e) {
if (!someValidationRoutine()) {
e.preventDefault();
}
});
This is not the most high-performance solution--selectors of that complexity are always a bit slower. But it gets the job done without messing too much with the DataGrid.

So I managed to solve my own problems and answer my own question. I was able to get the id's of all of the TextBoxes and I even placed them into an array to be used for my validations. Here's what I used to do all of this:
var i = 0;
var data = [];
$("#<%=dgCamsizer.ClientID %> :text").each(function () {
data[i] = $(this).attr("id");
i++;
});

Javascript to back button

I have one GridView with Employee search results in it.
This GridView shows results of EmpNo, EmpName, Salary. For each EmpNo cell in the GridView, there is a link to ManageEmployee.aspx page.
Till here okay, no problem.
In ManageEmployee.aspx page there are two buttons 1.Update, 2.Cancel
When user clicks on Cancel button, the page should navigate to Employee results page.
Can anybody give suggestion how to do this?

Add in a HyperLink field in a TemplateField. If you pass the search term to the details page as ~/Details.aspx?query=John%20Smith this will make a URL that is ~/SearchResults.aspx?query=John%20Smith.
<asp:TemplateField HeaderText="">
<ItemTemplate>
<asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl='<%# String.Format("~/SearchResults.aspx?query={0}", Request["query"]) %>'>Cancel</asp:HyperLink>)
</ItemTemplate>
</asp:TemplateField>
If you want JavaScript (be careful about postbacks)
<asp:TemplateField HeaderText="">
<ItemTemplate>
Cancel
</ItemTemplate>
</asp:TemplateField>
If you have troubles with postbacks you will probably need to add in a direct URL like the HyperLink version above, or simply a window.location=".." version instead of history.go().

if you are looking for navigation using ASP.Net you can use
Response.Redirect("Your URL")
Example on how to use it - MSDN

Use the onclick attribute:
onclick="javascript:window.location.href='/relative/path/to/employeeResults.aspx'"