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How to keep jquery modal open after postback?

I am having an empty div and i am using LOAD method of jquery and getting data from another aspx page. it works fine. it gets File upload and button control from that page. now when i click on the button my button code doesn't get called and my dialog gets close.
jQuery On Page1.aspx
var checkP = $('#<%= productName.ClientID %>').val();
checkP = checkP.replace(/\ /g, '-');
$("#midDiv").load("UploadImages.aspx?prodName=" + checkP + " #midDiv");
$("#midDiv").dialog();
//It Shows Dialog With File Upload Option & Button Option.
Page1.aspx
<div id="midDiv">
</div>
Page2.aspx
<div id="midDiv">
<asp:FileUpload ID="productsImages" CssClass="hid" runat="server" />
<asp:Button ID="Button1" runat="server" OnClick="uploadImageTemp" Text="Button" />
</div>
Page2.aspx.cs //Code Behind
protected void uploadImageTemp(object sender, EventArgs e)
{
//Some Work Here...
}
Is there any way that my button code gets called or is there any way to keep jQuery modal open ?

Append your dialog in form like below.
var checkP = $('#<%= productName.ClientID %>').val();
checkP = checkP.replace(/\ /g, '-');
$("#midDiv").load("UploadImages.aspx?prodName=" + checkP + " #midDiv");
$("#midDiv").dialog().parent().appendTo($("form:first"));
Change your button control to link button control.
<div id="midDiv">
<asp:FileUpload ID="productsImages" CssClass="hid" runat="server" />
<asp:LinkButton ID="Button1" runat="server" OnClick="uploadImageTemp" Text="Button" />
</div>
Now call your code behind button click event.

extjs/c# Yes saves to the database

I have a simple question.
I have a FormView, with a save button. When the button is clicked, it saves to databse.
I've added an EXT message box to confirm if user wants to save the data or not. when he click yes on the messagebox yes button, then it should save the data.
I can't find where to write the yes button logic in the ext.
Here is my code :
<asp:FormView ID="myform" runat="server" DataSourceID="mydatasource" DefaultMode="Edit" DataKeyNames="Id" >
<EditItemTemplate>
<asp:TextBox ID="myText" runat="server" TextMode="MultiLine" ClientIDMode="Static"
Text='<%#Bind("xx") %>' />
<ext:Button ID="btn_Update" runat="server" AutoPostBack="false" CausesValidation="false" CommandName="Update" Text="Speichern" StyleSpec="float: left; margin-left:10px;"> <DirectEvents>
<Click OnEvent="btnUpdateClick"></Click>
</DirectEvents>
</ext:Button>
<script type="text/javascript">
function showResult(btn)
{
Ext.example.msg('Button Click', 'You clicked the {0} button', btn);
};
function showResultText(btn, text)
{
Ext.example.msg('Button Click', 'You clicked the {0} button and entered the text "{1}".', btn, text);
}
var showResult = function (btn) {
Ext.Msg.notify("Button Click", "You clicked the " + btn + " button");
};
var showResultText = function (btn, text) {
Ext.Msg.notify("Button Click", "You clicked the " + btn + 'button and entered the text "' + text + '".');
};
</script>
protected void btnUpdateClick(object sender, DirectEventArgs e)
{
X.Msg.Confirm("Confirm", "Are you sure you want to save?", new JFunction { Fn = "showResult" }).Show();
}

I guess you are looking for this: (Can be placed in any Demo-Box of the Sencha API)
Edit 2
I have totally overseen that you are using Direct. You should mention such things.
Is there any reason for using DirectEvent? I couldn't test it but how about this (the wrapping function may be unnecessary, but a normal ExtJS handler get button reference as first argument):
<form runat="server">
<ext:ResourceManager runat="server" />
<script runat="server">
[DirectMethod]
public void SetTimeStamp(string field)
{
// do your saving
}
</script>
<ext:TextField ID="TextField" runat="server" FieldLabel="Label"/>
<ext:Button ID="Button" runat="server" Text="Click Me" Icon="Lightning">
<Listeners>
<Click Handler="function() {Ext.Msg.show({title: 'Save?', msg: 'Do you want to save the data?:', buttons: Ext.Msg.YESNO,fn: function(btn){ if(btn == 'yes') {App.direct.SetTimeStamp(#{TextField}.getValue());}}})}" />
</Listeners>
</ext:Button>
</form>
Edit 1 Simply use Ext.Ajax.request()
Ext.Msg.show({
title: 'Save?',
msg: 'Do you want to save the data?:',
buttons: Ext.Msg.YESNO,
fn: function(btn, text){
Ext.Ajax.request({
url: 'yourUrl',
method: 'POST',
params: {
// your params
},
success: function() {
console.log('success');
},
failure: function() {
console.log('woops');
}
});
}
});
Form example removed

Thank you all for your support, I found my way through your answers I will put it here maybe it can be useful for someone.
First, button code, need to have Isupload = "true"
ext:Button ID="btn_Update" runat="server" AutoPostBack="false" CausesValidation="false"
CommandName="Update" Text="Save" StyleSpec="float: left; margin-left: 10px;"
AutoScroll="False">
<DirectEvents>
<Click OnEvent="btnUpdateClick" IsUpload="true" AutoDataBind="true">
</Click>
</DirectEvents>
</ext:Button>
in the button event in the aspx :
protected void btnUpdateClick(object sender, DirectEventArgs e)
{
MessageBoxButtonConfig buttonYes = new MessageBoxButtonConfig();
buttonYes.Text = "Yes";
buttonYes.Handler = "Ext.net.DirectMethods.ClickedYES();";
MessageBoxButtonConfig buttonNo = new MessageBoxButtonConfig();
buttonNo.Text = "NO";
// buttonNo.Handler = "Ext.net.DirectMethods.ClickedNO();";
MessageBoxButtonsConfig yesNoButtons = new MessageBoxButtonsConfig();
yesNoButtons.Yes = buttonYes;
yesNoButtons.No = buttonNo;
X.Msg.Confirm("Save Changes", "Would you like to Save?", yesNoButtons).Show();
}
Last the Yes method that will save to database:
[DirectMethod]
public void ClickedYES()
{
Formview.UpdateItem(false);
Formview.DataBind();
}

I would suggest that instead of wiring the yes button of the dialog to perform the postback. You should wait for the message box to close and then invoke the postback functionality if the user clicked yes.
For example:
Ext.Msg.prompt('SaveChange', 'Would you like to save the changes?:', function(btn, text){
if (btn == 'yes'){
__doPostBack('btnSubmit','OnClick');
}
});
Replace btnSubmit with the name of your button.
Although the above solution would be my recommended approach, you could, alternatively, use jquery by doing:
$('btnSubmit').trigger('click');
Source: http://dev.sencha.com/playpen/docs/output/Ext.MessageBox.html

OnClientClick not working

I am having some problem with OnClientClick.
I added a button into my webform like this.
<asp:Button ID="Button1" runat="server" onclick="Button1_Click"
style="top: 307px; left: 187px; position: absolute; height: 26px; width: 90px"
Text="Submit" OnClientClick="return validate()" />
And i am writing a javascript inside <head>immediately after the <title>.
<script language="javascript" type="text/javascript">
function validate() {
if (document.getElementById("<%=TextBox1%>").value == "") {
alert("textbox1 should not be empty");
}
else if(document.getElementById("<%=TextBox2 %>").value==""){
alert("textbox2 should not be empty");
}
}
</script>
TextBox1andTextBox2 are the Id's of two textboxes.
But when i click on Submit button, OnClick is firing but OnClientClick is not firing.
Whats the problem ?
Please help.

When taking the ID from the textboxes, you'll have to use <%=TextBox1.ClientID%> in your javascript.
And you should also return false from the validate-function when an error occurs.
Replace your javascript with:
function validate() {
if(document.getElementById('<%=TextBox1.ClientID%>').value == '') {
alert('Textbox1 should not be empty');
return false;
}
if(document.getElementById('<%=TextBox2.ClientID%>').value == '') {
alert('Textbox2 should not be empty');
return false;
}
}

Try this way:-
document.getElementById("<%=TextBox1.ClientID%>").value
document.getElementById("<%=TextBox2.ClientID%>").value

The first thing i see, is that you are using "<%=TextBox1%>" without the .ClientID,
which is what recognizes the texbox on the client side. naturally, without id, you javascript cannot find the object (and probably throws an exception as well)

(document.getElementById("<%=TextBox1%>").value == "")
will render as
(document.getElementById("System.Web.UI.WebControls.TextBox").value == "").
so try to use document.getElementById("<%=TextBox1.ClientID%>").value in the javascript function.

C# Disable/Enable Button based on Empty/Populated Text Boxes

I have a form with 5 text boxes and a button, and when the button is clicked it send the data to a SQL database. I would like the button to be disabled if any of the text boxes are null, how do I do this in C#? (I am in Visual Studio 2010 ASP.NET web app)

You need to write JavaScript/jQuery code.

Yes, What Sam said is right!!
you need to check first whether all your text boxes are empty or not.
that will be done by
If(txtbox1.text == "" || txtbox2.text == "" || txtbox3.text == "" || txtbox4.text == "" || txtbox5.text == "")
If any of the text box is empty then make the button disabled.
button1.enable = false;
If all are filled then make it as enabled.
button1.enable = true;

If you do not want to use Client side scripts, you can use validations for your controls
<asp:TextBox id="TextBox1" runat="server" />
<asp:RequiredFieldValidator id="RequiredFieldValidator1"
runat="server" ErrorMessage="Required!" ControlToValidate="TextBox1" >
</asp:RequiredFieldValidator>
Validation will trigger on postbacks.
If you have multiple controls, but you do not want to validate them all, you can use Validation Group. Check this link for using Validation Groups

use javascript setInterval on Page load if if you are using this single form on the page and check each textbox value length .. if anyone is null then disable submit button..
use jquery to disable and enable them.. check following code snippet that i have created for sample..
use this to access server control id if you are using these controls inside some container control eg. panel, contentplaceholder etc : $("#<%=button1.ClientID>%>")
$("#text1").val().length will check then length of text in textbox.. and then use jquery to enable and disable them..
<head runat="server">
<title></title>
<script src="http://code.jquery.com/jquery-1.7.min.js" type="text/javascript"></script>
<%-- <script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.7.min.js" type="text/javascript"></script>--%>
<%--<script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.7-vsdoc.js" type="text/javascript"></script>--%>
<script type="text/javascript">
$(document).ready(function () {
$("#submit").attr('disabled', 'disabled');
$("#text1").keypress(function () {
check();
});
var intv = self.setInterval("check()", 1000);
});
function check() {
if ($("#text1").val().length > 0) {
$("#submit").removeAttr('disabled');
}
else {
$("#submit").attr('disabled', 'disabled');
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="text1" runat="server"></asp:TextBox>
<asp:Button ID="submit" runat="server" Text="Button" />
</div>
</form>
</body>
</html>

doPostBack from C# with JavaScript

hi I have one parent page which opens a pop up window, and user makes some changes on child pop up page then clicks a save button.
When the user clicks the save button, I want to doPostBack to the parent page so that the changes made in the pop up window can be seen in parent window.
Question : How can I achive the above scenario?
I want to write the script code in aspx.cs file, I tried
string script = "";
script = "<script>window.opener.__doPostBack('UpdatePanel1', '')</script>";
ScriptManager.RegisterClientScriptBlock(Literal1, typeof(Literal), "yenile", script, true);
but this did not do anything, no errors just nothing.
I am new to JavaScript, need help with all steps.

The parent page:
<asp:UpdatePanel runat="server">
<ContentTemplate>
<div>
<asp:Literal runat="server" ID="ChildWindowResult" />
</div>
<hr />
<input type="button" value="Open Dialog" onclick="window.open('MyDialog.aspx', 'Dialog');" />
<asp:Button ID="HiddenButtonForChildPostback" runat="server"
OnClick="OnChildPostbackOccured" style="display: none;" />
<asp:HiddenField runat="server" ID="PopupWindowResult"/>
</ContentTemplate>
</asp:UpdatePanel>
The MyDialog page:
<script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.6.1.min.js"></script>
<script type="text/javascript">
function postData() {
var resultField = $("input[type='hidden'][id$='PopupWindowResult']", window.opener.document);
var parentPosDataButton = $("[id$='HiddenButtonForChildPostback']", window.opener.document);
resultField.val($("#<%= SomeValueHiddenField.ClientID %>").val());
parentPosDataButton.click();
}
</script>
<asp:TextBox runat="server" ID="SomeValueHiddenField" />
<asp:Button runat="server" OnClick="PostData" Text="Click Me" />
protected void PostData(object sender, EventArgs e)
{
SomeValueHiddenField.Value = DateTime.Now.ToString();
ClientScript.RegisterStartupScript(this.GetType(), "PostData", "postData();", true);
}
But I believe that it would be much better to utilize here some pop-up controls like PopUpExtender from the AjaxControlToolkit library or dialog from the jQuery-UI.

You probably need to use ClientID:
string script = "";
script = "<script>window.opener.__doPostBack('" + UpdatePanel1.ClientID + "', '')</script>";
ScriptManager.RegisterClientScriptBlock(Literal1, typeof(Literal), "yenile", script, true);

The last parameter is to whether include script tag or not
So, if you do
RegisterClientScriptBlock(page,type, "<script>foo();</script>", true);
You will end up with:
"<script><script>foo();</script></script>"
So, change your last parameter to false, or better yet, remove the tags in the string

Review the following suggested solution:
http://livshitz.wordpress.com/2011/06/12/use-popup-to-postbackupdate-its-parentopener-without-losing-viewstate-values-and-close/#more-16