i am doing a drop and drag operation that calls a webmethod to do a data insert on drop. I am trying to figure out the best way to rebind the datalist that i am getting my items from to show accurate items. Should i just remove it using javascript? or rerun the binding?
View 1 RepliesI'm using a jquery plugin called uploadify to upload images to my database. I'd like my datalist to be auto-rebind after the images' been uploaded so people could see the changes immediately. Also because this is a feature for admin there is a delete button in the datalist. I used updatePanel for this.
I put __doPostBack('" + upnlUploaded.ClientID + "','') to the javascript so when Images have been uploaded the update panel will postback.
I also have the following two lines to make it working...
<asp:UpdatePanel ID="upnlUploaded" runat="server" UpdateMode="Conditional" OnLoad="upnlUploaded_Load"> <%--upnlUploaded_Load --%>
I have an jquery ajax event that fires and sends some variables to a user control. the user control (which displays a repeater) takes these values, runs a query, and returns a list for binding to it's repeater. For some reason it wont let me bind to the repeater. It just quits the debugger?
View 6 Repliesi appologise if thisis a silly question but i just want to be completely sure something is not possile before i tell this to my manager.
i am a WinForms programmer by trade, but i have put in charge of making a web site for our sales team, and web development is a new area for me. the web site is written in ASP.NET, C# code. it is finished, however they are complaining that there are too many page refreshes.
first of all, we have an SQL server with all our data in it. on the main web page, the user must select their country of interest from a DropDownList. when they do this, all our customers from that country are displayed in an html table, generated by a Repeater. i have set AutoPostBack on the country DropDownList to true, so each time the user selects a different country, the SelectedIndexChanged event handler is called, and in here i generate a new sql statement with the selected country, and re-bind the Repeater.
There are also a few other DropDownLists that do other 'filtering' stuff. for example, one DropDownList selects whether to display customers whose license expires soon (within a week), and another DropDownList filters the customers who currently have an open support case. All the DropDownLists have their AutoPostBack set to true, and in their SelectedIndexChanged event handler, i work out the sql based on the values of the DropDownLists, and re-bind the Repeater.
the problem with the above is that each time the user selects a different value from the DropDownList, the page refreshes, clearly because the AutoPostBack is set to true for them all. so to stop this i need to set AutoPostBack to false - but then of course the SelectedIndexChanged event handlers are not called, and so i have no place to rebind the repeater with my new sql statement.
so what i really need, is to be able to set a DropDownList's AutoPostBack to false, and handle the rebinding of the Repeater in some client-side event, which does NOT result in a postback. the Repeater will be bound by some sql, which is generated by the values in the DropDownLists (eg "SELECT * FROM custTable WHERE [Country]='" + CountryDropDownList.Text + "'"), so in this client-side event i need to be able to reference the asp.net controls.
One thing I really don't like about Updatepanel is that I have to rebind almost all components in the page.
For example, I have to specify Eidit (Update) index (for inline editing) after rebind Listview using Update panel (after partial update).
It was too much job to rebind all components, so I redirected to same page and used Querystring to pass values in order to avoid all components to be updated based on one value...
If I update Listview using Updatepanel, the datapager has to be updated as well based on new Select SQL statement results.
Listview is pretty simple to update, using "Listview1.bind()" does the job.
Datapager is also in updatepanel, but it won't rebind with new results.
After post back, I'm still getting same Datapager as the orignal SQLDataSource.
In orger to "refresh" Datapager, what do I need to do??
I used to use iframe to do partial page update, but I'm having big problem using Updatepanel since simple rebind won't do the job.
I have ASP.NET page, Page1 and there is a gridview. There is also a linkbutton which takes user to Page2. And, once user clicks a button on Page2, the page is redirecting to Page1.
I want to rebind the gridview on the Page1 with previous gridview again upon coming back from Page2. So I am passing the gridview in the Session variables, and bind it to same gridview again, but it looks like it's not binding (No gridview displayed).
Is there any way I could preserve the gridview and rebind it upon coming back from another page?
how to get value to the objectdatasource from datalist itembound method
protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
[URL]
like above link i want to bind
name.....................
city...... country.........
for suppose 10 employee. for that i try to bind datalist using webservice & jquery. but i get lots of problem to bind datalist. with name as hyperlink so that when i click at name it go to next page and show details.
I have an application that has JS calling ASMX files to do asyncronous requests, using ASP.NET AJAX.
The problem is that I use always the same "onError" function, and now I don't know how to identify the method that rised the error, and it is giving me a lot of problems to debug errors. The parameter "data" of the onError method does not give enough information, for
example:
en System.ComponentModel.BaseNumberConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value)
en System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeInternal(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject)
en System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeMain(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject)
en System.Web.Script.Serialization.ObjectConverter.ConvertObjectToType(Object o, Type type, JavaScriptSerializer serializer)
en System.Web.Script.Services.WebServiceMethodData.StrongTypeParameters(IDictionary`2 rawParams)
en System.Web.Script.Services.WebServiceMethodData.CallMethodFromRawParams(Object target, IDictionary`2 parameters)
en System.Web.Script.Services.RestHandler.InvokeMethod(HttpContext context, WebServiceMethodData methodData, IDictionary`2 rawParams)
en System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)
Is there any way to know the webmethod that raised the error?
I have a selection list that is generated dynamically, it lists a number of checkboxes that are based on an end-user editable table, as such I have no idea what data, or how much, might be contained in this table and how many checkboxes or what they might contain, other than the primary keys of the table. The user will select the checks they wish to see, and then control is passed to another page via PostBackUrl. The second page has to figure out which records to show (build it's where clause) based on the checkboxes checked in the previous page.
So, my problem is several-fold. First, asp:CheckBoxes don't have values. This can be worked around by a number of methods. Right now, i'm using a placeholder and dynamically creating the checkboxes in the ItemDataBound event of the DataList. I set the ID to "CheckboxKey1Key2" (where Key1 and Key2 are the primary keys of the check items). Second, I have to walk through the controls of the PreviousPage to dig out all these values. That in itself is also a pain, but doable. Now, my thinking is to build the where clause of my Linq2Sql query based on the keys I got from decoding the checked checkbox names. This all seems like a lot of jumping through hoops for something that shouldn't be this difficult. Am I missing something? Does anyone have any better solutions?
I have a gridview connected to sqldatasource and regular textbox. In sqldatasource I defined selectparameters controlparameter to textbox.I'm trying to rebind gridview when textbox text is changed. So question is how can I rebind sqldatasource?
View 3 RepliesThe binding of the data to chart switches according to the radio button selection, but it shows only the data that is selected for the first radio button
View 6 RepliesIs there a flag or property value I can set to have my controls re-bind on every page load, instead of just the initial one? I'm still very new to ASP.NET, so I would like to do it properly (if such a way exists) before resorting to the first thing that "works".
I am working on a simple WebForms page, which boils down to a few SQLDataSource-bound Repeaters; for example:
<asp:Repeater ID="ExampleRepeater" runat="server" DataSourceID="ExampleDataSource"
OnItemDataBound="ExampleRepeater_ItemDataBound">
<ItemTemplate>
<asp:Label ID="DataboundControlID" runat="server" Text='<%# Eval("ExampleColumnName")%>' />
</ItemTemplate>
</asp:Repeater>
<asp:SqlDataSource ID="ExampleDataSource" runat="server" ConnectionString="example_connection_string"
SelectCommand="ExampleStoredProcedure" SelectCommandType="StoredProcedure">
<SelectParameters>
<asp:Parameter DefaultValue="exampleValue" Name="parameter1" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
After the user has interacted with my page, they can initiate a postback which will change the state of the database. I'd like the postback'ed page to reflect the changes to the database.
I have a DetailsView control, in edit mode, I want to hide and show fields based on a DropDownList's value inside it (the DropDownList makes a postback).
The problem is that when a hide and the show operation is maked, the DetailsView control will make a rebind for it and all the filled fields are cleared!
How can I prevent this behaviour?
I have a grid with one TemplateField which is a checkbox and say 2 bound fields.
In Page_Load on postback I rebind the grid with cached dataset stored in session. If user selects checkbox on the grid, upon postback i can iterate on the grid and get those checked values, everything works fine.
If I move the code of grid binding on postback to OnInit instead of Page_Load then i loose those user checked checkbox data. Why? Should the postback data not overlay on top of the grid after oninit?
It does work with page_load, I'm assuming that when i rebind the grid, I'm overlaying my data on grid which has postback data, since the checkbox column is not bound i do not overwrite postback data.
NOTE: viewstate is disabled on my grid, i bind data (stored in session) on everyback postback. Also something weird, when I'm using OnInit, on every postback i get the first page of the grid, no matter which page the postback was triggered.
i have a web service that i use for the AutoCompleteExtender, let the below code show you what i'm trying to do: [Code]....
this method is called, and when it calls the method inside the Patients Class, it gets lost. does that mean that i can't use 3-tier approach with web methods?
When this function is hit , it does not call my function in code behind? Why could it be doing this? How can I fix this error.
$(document).ready(function() {
$('[id$=btn_Update]').click(function() {
var reten = $('[id$=txt_Reten]').val();
var i=0;
var selectValues = "";
var ProdID = new Array();
$("#lst_ProdId option").each(function() {
selectValues = selectValues + $(this).text() + ",";
ProdID[i] = $(this).text();
i++;
});
for(var j=0; j < ProdID.length;j++)
{
// alert(ProdID[j]);
}
var params = "{'ProdID':'" + ProdID + "','RetenP':'" + reten + "'}";
$.ajax({
type: "POST",
url: "/ProductPricing/Products/RetenPeriod.aspx/UpdateRetenPeriod",
data: params,
contentType: "application/json; charset=utf-8",
datatype: "json",
success: function(result) {
alert("sucess");
},
error:function(e) {
alert(e.statusText);
// if(errorThrown != null)
// alert(textStatus+ ":"+errorThrown);
// else
// alert("fail");
}
});
return false;
});
return false;
});
This is my webmethod in code behind:
[WebMethod]
public static bool UpdateRetenPeriod(string[] ProdID,string RetenP)
{
for (int i = 0; i < ProdID.Length; i++)
{
update(ProdID[i],RetenP);
}
return true;
}
$("#Name").on("blur", function() {
if (Name != "" && Name != null) {
var options = {
type: "POST",
url: "ApplyNow.aspx/CheckName",
[code]...
how to use the value of 'duplicate' in btnsunmit_click() from webmethod.
I have a ListBox declared like this in my aspx:
[Code]....
And I need to rebind it in the codebehind:
[Code]....
Then I want only the second item in the list to be selected
[Code]....
I don't want the first item to be selected, what do I miss?
I added the extender and when i tried to add the method this message poped up; Cannot create page method "GetCompletionList" because no Code Behind or codefile was found.
View 4 RepliesI'm using a custom AJAX based validation control to check user name availability from database. It's working alright in my development machine but in production server we are using Windows Authentication to authenticate by domain.The control is inherited from base validator and checks for user name availability from database perfectly but on form submission at Page.IsValid check it gives the following error.
remote server returned an error 401 unauthorized
Both the form and webmethod are in the same page/file. I even tried creating webmethod in a separate standalone webservice but error still there.
I try to unbind an event and then rebind a new event to an input element of type text. I think the unbind works, as teh default behavior is disabled, but the rebind not.
The code used:
[Code]....
The alert message doesn't show up on a keypress.
am newone on this forum and I've a few question about updatepanel inside datalist;I've made a survey and code below:
[Code]....
i try to make a search part. there is a textbox which will be used for search context. also, i need to list category names. i don't use dropdownlist because its styles(for example border-style)doesn't change. So i tyr to do like this:i use a label and datalist. when clicking the label, datalist is showing. when i click the category name on datalist, it will be shown on label.(label is not in datalist.)my problem starts at that point. when i click category name on datalist , page is being postback. so i put datalist into updatepanel. but this time , i click category name on datlist,nothing occurs.(category name doesn't shown on label).my code is below:
<asp:UpdatePanel
ID="UpdatePanel1"
runat="server">
[code]...
When I try to do a delete it does not work.
[Code]....