Access C# Function In Javascript, Both Are In Webusercontrol?
Apr 15, 2010
I am trying to create a chat application like Facebook
My chat windows are in the footer control of the website, and C# code also in footer's CS file, i need to call C# function from footer CS file into javascript included in my footer.aspx file,
i have tried it by ICallbackEventHandler, but WebForm_DoCallback(this,arg,RecieveMessage,"",null,false); simply postback my current page, but i need to postback footer.aspx only and call "public void RaiseCallbackEvent(String eventArgument)".
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Similar Messages:
Sep 1, 2010
I have some ajax fucntions on my default.aspx that I use for saving data to my db. I have the form on my web control. When I try calling the function from my button which resides on the web control. I get an error.
I need to call that function from my registerform.ascx. How do I do that from within the registerform code behind?
function ShowAvailability() {
$.ajax({
type: "POST",
url: "Default.aspx/CheckEmail",
data: '{usermail: "' + $("#<%=subs_email.ClientID%>")[0].value + '" }',
contentType: "application/json; charset=utf-8",
dataType: "json",
success: OnSuccess,
failure: function(response) {
alert(response);
}
});
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Sep 5, 2010
I have a dropdown inside a webusercontrol which I want to use on 5 pages. I want to save the selected value of the dropdown from the page. I tried to access it using below method, but its not working[URL]
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Feb 17, 2010
I started to use the MultiSliderExtender and wanted to create a WebUserControl with it But every time I add more then one slider I'm getting Javavascript erros
Heres the Code of ASP page:
[Code]....
Heres the Code of the WebUserControl:
[Code]....
When the page Opens a JS Error occours in some ASP generated JS Code
[Code]....
d contains the ID TextBox2 but somehow the TextBox2 object doesent exists on executing this line resulting in null referenc error. If i put All the Code of my WebUserControl into the ASP Page it works fine
If i remove <MultiHandleSliderTargets> ... </MultiHandleSliderTargets> from the Control no error occours. But i need two Sliders
Adding sliders in Page_Load ended with other Execpetions (AjaxControlToolkit.MultiHandleSliderTarget is not serializable).
So my question is: How to make a this WebUserControl working.
I'm using VS Web Dev Express 08, .Net 3.5, ASP Ajax Kit ver 3.0.30930.0 all on Windows 7
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Jan 25, 2011
I have designded a asp.net server control that have an embeded javascript file.
document.getElementById("div_Messages_Back").style.left = 0;
document.getElementById("div_Messages_Back").style.top = 0;
document.getElementById("div_Messages_Back").style.width = document.documentElement.clientWidth;
document.getElementById("div_Messages_Back").style.height = document.documentElement.clientHeight;
document.getElementById("tbl_Messages").style.left = (document.documentElement.clientWidth - 250) / 2;
document.getElementById("tbl_Messages").style.top = (document.documentElement.clientHeight - 120) / 2;
function btn_Close() {
document.getElementById("div_Messages_Back").style.visibility = "collapse";
document.getElementById("tbl_Messages").style.visibility = "collapse";
}
I want the first 6 line of my javascript file run at runtime. But I recieve error at runtime:
Error: Object Required.
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Jan 3, 2011
Getting error calling Javsscript function from another Javascript function
[Code]....
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Jan 27, 2010
<asp:LinkButton CssClass="button" ID="btnApply" runat="server" OnClick="btnApply_Click()" OnClientClick="Apply1('btnApply')" >
hi ihave this functin in .vb file
Protected Sub btnApply_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnApply.Click
end sub
and javascript function also in aspx
function ApplySummerization(id)
{
alert("hai");
}
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Aug 25, 2010
I am trying to replace the JavaScript onclick event handler in ASP.NET that is added to a button control when using validation controls. This is what is output into the HTML from ASP.NET in this scenario:
<input type="image" name="ibSubmit1" id="ibSubmit1" src="button-green-submit.gif" onclick="showProgress1();WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions("ibSubmit1", "", true, "Group1", "", false, false))" style="border-width:0px;" />
I have looked pretty estensively, and unfortunately there doesn't seem to be a way to modify the function server side before it is injected into the page.
Since I am developing a control and desire it to be non-invasive and self contained, and I am interested in obtaining the validationGroup parameter of the WebForm_PostBackOptions object, it seems that the easiest solution would be to use JavaScript to replace the WebForm_DoPostBackWithOptions function name with my custom wrapper function and leave all of the rest of the parameter information intact - then I can extract the information I am interested in, call my custom functions, and then forward the call on to WebForm_DoPostBackWithOptions.
NOTE: I am using jQuery to build my custom function, so if there is an easier way to do this with jQuery it is an option I will consider.
Here is the code I tried to replace the onclick event handler (not working):
$('[onclick*=WebForm_DoPostBackWithOptions]').each(function() {
var txt = this.onclick;
txt = txt + '';
txt = txt.replace('WebForm_DoPostBackWithOptions','ml_DoPostBackWithOptions');
this.onclick = eval(txt);
});
Using alert(), I verified that the text is being changed correctly, however whether or not I use the eval() function, the onclick handler doesn't seem to recognize it as JavaScript.
I thought of using a regular expression to get the validationGroup value, but this seems like it will be far more elegant and flexible if I can get it working...
Note: If there is a way for my control to interrogate the page it is on to find all of the buttons that will post back (regardless of what type of buttons they are) so I can retrieve the property server-side, this is also something I will consider.
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Aug 19, 2010
I want to use sum function in access database (not MS SQL) to add array of items in a particular date.For Eg. The Access Database format like
Date
Prod. Name
Value
[code]...
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Sep 29, 2010
In asp.net page, How can i call the javascript methods for form processing-submitting if the user browser supports javascript and use code behind events if the browser does not support javascript.I have the javascript code to send the form data to an ajax server page using jquery. Don't know how to invoke the needed one based on the browsers javascript availability
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Sep 22, 2010
I have the function put here like below:
$(document).ready(function () {
UserControlNameInit();
});
The script are put in the following and the block is in the .ascx page.
<script type="text/javascript">
</script>
However, the function UserControlNameInit() does not run when the page loads. It is showing in the page source. I can still call this function through FireBug console by manually typing the name of the function.
I did the same way with other user controls, and it works. Just 1-3 user controls are not working...
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Apr 6, 2010
I have an update statement here:
id is a long auto-increment integer.
UPDATE [table1] SET [icon] = Str([id]) & @file_ext where
id=@id;
after I execute this statement, there is a space in my access, such as " 1.jpg"
So I decide to hard-code the id:
UPDATE [table1] SET [icon] = '1' & @file_ext where id=@id;
It's work! the result is "1.jpg"
Is there sth wrong in my code? Thx!
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Jul 28, 2010
I am writing an ASP.Net application. I am making use of master page in it. I have several child pages with me, which consist of some java script functions; Let's say;
function ChildPageFunction()
{
//Do something;
}
And master page java script function as;
function MasterPagefunction()
{
//Need to call ChildPagefunction(); here
}
Now is it possible to call ChildPageFunction() from MasterPageFunction()?
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Feb 13, 2011
I've some function javascript to check loaded file with FileUpload Control
<script language="javascript" type="text/javascript">
function CheckFileBeforeUpdate()
{
var filePath = document.getElementById('<%= this.upFile.ClientID %>').value;
var validExtension = 'xml';
var ext = filePath.substring(filePath.lastIndexOf('.') + 1).toLowerCase();
if (ext == validExtension) return true;
alert('The file extension ' + ext.toUpperCase() + ' is not allowed!');
return false;
}
</script>
and it's called with Button: OnClientClick="return CheckFileBeforeUpdate();
<asp:Button ID="LoginButton" runat="server" CommandName="Login" Text="Log In"
onclick="LoginButton_Click" OnClientClick="return CheckFileBeforeUpdate();" />
So there's unusual situation: I choose appropiate file, click Login...and it goes on to next functions despite inadequate extension.
Otherwise if I e.g. click FileUpload, but select no file.
Next time I choose some file (even with bad extension) and then function run (shows alert).
Why there's sth like blockade? What can I do to change CheckFileBeforeUpdate() runs everytime?
EDIT
if I select no file there's show alert("Select file to log in"); of course. And then is lock release
[Code]....
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Jun 1, 2010
I have a function called Public Shared Function get_userDB() As String in my MastePage.master.vb file that i would like to access from my users page that is connected to the master page.
I have tried with: me.master.get_userDB()
But that won't work. It says that my function is not a member of my masterpage. What im i doing wrong?
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Oct 25, 2010
I want to set ASP.net custom validator error parameter text through client side javascript. How can access it via sender, args parameters in my function?
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Jan 26, 2011
I have two functions (function1 and function2) in a javascript file called javaTest1.js
I am trying to link the javaTest1.js file so that I can directly call the functions in the javaTest file to my content page and Master page.
I have done the following in the header section of the Master Page
[Code]....
How do I now access the function in codebehind and javascript of both the Content Page and the Master page?
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Apr 19, 2010
I have an access MDB database of latitude and longitude coordinates (x,y). I also have a function in VB similar to:
Public Function Distance (x1,y1,x2,y2) as Double
'Some code here
Distance = 'distance between x1,y1 and x2,y2
End Function
What I want to do is create a query that will show all locations contained in the table that are within 10 miles of user unetered coordinates (where LAT and LON are columns in the table and VarX and VarY are user proivided: SELECT *, Distance([LAT],[LON],VarX,VarY) as Dist FROM TableName WHERE Dist < 10
Obviously this doesn't work but I want to know how to accomplish this end result. Basically, I want to return a query of all locations within 10 miles of VarX and VarY. How do I incororate the Distance function into my query?
If it's not possible, what is the best workaround to accomplish this?
Using ASP.NET Visual Basic and a MS Access MDB
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Feb 23, 2010
I have in my Models folder a Class named "Utilities".
I need to acces one method of that class inside a view, like <%if(IsASelectedCategory(item.categoryId, item.productId))%>
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Nov 15, 2010
Is is possible to call a Javascript function whether it's embedded in the HTML markup file or a .js file from a VB.Net procedure/function?
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Mar 17, 2010
I'm working on an MVC application and I ran into a little snag.
I've got a form with the usual textboxes and dropdowns. I decided to use jquery ajax (GET) to load the dropdowns on load (State Names & Salutations).
No matter what I try, for example:
Code:
<AcceptVerbs(HttpVerbs.Get)> _
Public Function ReturnSalutationDropdown() As ActionResult
Dim dropdown As New DropDownList With {.TabIndex = 1, .DataTextField = "Value", _
.DataValueField = "Key", .ID = "ddl_coSalutation"}
dropdown.DataTextField = "Value"
dropdown.DataValueField = "key"
dropdown.DataSource = AppEnumerations.BindToEnum(GetType(AppEnumerations.Salutation))
dropdown.DataBind()
Dim sb As New StringBuilder
Dim tw As New IO.StringWriter(sb)
Dim hw As New HtmlTextWriter(tw)
dropdown.RenderControl(hw)
Return Content(sb.ToString)
End Function
The ID of the dropdown ends up like: ctl00$MainContent$ddl_coSalutation
It doesn't matter if I use a stringbuilder and a loop to create a <select> with <option>'s, the ID always ends up like above.
Do I have to create a javascript function to create it instead?
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Jan 13, 2011
I have to call C# function from javascript?
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Apr 3, 2011
how run one javascript function for diffrent element with one ASP.Net button click ?
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Nov 8, 2010
I am new to programming and trying to write a javascript function to set a cookie value when a popup button is clicked.
In home.aspx
<input id="btnCanOK2" type="button" value="Close" class="popupButton" runat="server" onclick="return btnClose_Click" />
for this button, i have written a javascript function:
function btnClose_Click()
{
document.cookie = 'cookieName=closed; value=dontshowagain';
}
In merchant.login page
In the code behind of the other page, it has to check if the value of the cookie is set to "dontshowagain". If it is set to the value, the function should not show the popup again. My task is not to show the popup in different pages. If it is closed once, it has to stop showing again until the browser is closed.
if (Request.Cookies["closed"] == null)
{
ModalPopupextender2.Show();
}
else if(Request.Cookies["closed"].Tostring() == "dontshowagain")
{
ModalPopupextender2.Hide();
}
Where am i doing wrong?? Now Cookie value is always null :(
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Dec 1, 2010
can I hit the database on my view?
I have function like this..
function ShowHIPAATab(url) {
if ($("#BxFlag").val() == "1") {
$("#bv-1").attr('src', url);
} else {
return false;
}
};
on this funcation I need to hit the database to get the BXFlag value.how to do that?
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