Selected Event Not Raised For ObjectDatasource When Enable-caching Is True?
Jan 14, 2011
I've a Gridview control using an ODS(ObjectDataSource) to fetch data. For the best performance and efficiency, I've turned-off the view state of Gridview (i.e. EnableViewstate = "false".And I've also enabled caching in the associated Objectdatasource. This eliminates as much as 50-60% performance optimization because it eliminates the DB round-trip .. courtesy ODS Caching.So, after this I got stuck into the famous "ODS sorting" issue but I managed to invent a tricky solution for it and its working fine
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Jun 29, 2010
I have two radiobuttons in radiobuttonlist and based on selection, i am enabling and disabling the text box.
First time i used date radiobutton and i took date in corresponding textbox and i saved it into database and then when i came back on same page i saw the date radiobutton is checked has proper value then i clicked on another radiobutton and this time page is postback and clear my all the data which was in my other controls(I have 5-6 text boxed on my page). I dont know why?, It supposed to select my other radiobutton and enable the corresponding text box
[Code]....
if (!Page.IsPostBack)
{
if (gvCredentialTypes.SelectedIndex >= 0)
{
CredentialType credType = CredentialType.FindCredentialType(gvCredentialTypes.SelectedValue.ToString());
if (!String.IsNullOrEmpty(credType.CredentialTypeName)) //If exists, load data
{
String expDays = credType.ExpirationLength.ToString();
DateTime expDate = Convert.ToDateTime(credType.ExpirationDate);
// Assign the value to the controls
LoadExpirationDaysDateValue(expDays, expDate);
}
}
}
private void LoadExpirationDaysDateValue(String expDays, DateTime expDate)
{
// Determines whether value for Days or Date is present
Boolean IsDays = false;
// Check if days value is present
if (String.IsNullOrEmpty(expDays) || expDays.Equals("0"))
{
txtExpirationDays.Text = String.Empty;
}
else
{
txtExpirationDays.Text = expDays;
IsDays = true;
}
if (expDate.ToShortDateString().Equals ("1/1/0001"))
{
txtExpirationDate.Text = String.Empty;
}
else
{
txtExpirationDate.Text = expDate.ToShortDateString();
IsDays = false;
}
// Set the radio button value based on whether Date or Days value is present
if (IsDays)
{
// Get ref to the 1st radio item
ListItem liExpirationInDays = rbExpiration.Items.FindByValue("rbExpirationInDays");
if (liExpirationInDays != null)
{
liExpirationInDays.Selected = true;
rbExpiration.Items.FindByValue("rbExpirationDate").Selected = false;
txtExpirationDate.Text = string.Empty;
txtExpirationDays.Text = expDays;
// Enable or disable the controls based on the radio button selection
txtExpirationDays.Enabled = true;
RequiredFieldValidator1.Enabled = true;
RangeValidator1.Enabled = true;
txtExpirationDate.Enabled = false;
RegularExpressionValidator1.Enabled = false;
CalendarExtender2.Enabled = false;
//compDateValidator.Enabled = false;
RequiredFieldValidator2.Enabled = false;
}
}
else
{
// Get ref to the 2nd radio item
ListItem liExpirationDate = rbExpiration.Items.FindByValue("rbExpirationDate");
if (liExpirationDate != null)
{
liExpirationDate.Selected = true;
rbExpiration.Items.FindByValue("rbExpirationInDays").Selected = false;
txtExpirationDays.Text = string.Empty;
txtExpirationDate.Text = expDate.ToShortDateString();
// Enable or disable the controls based on the radio button selection
txtExpirationDate.Enabled = true;
RegularExpressionValidator1.Enabled = true;
RequiredFieldValidator2.Enabled = true;
CalendarExtender2.Enabled = true;
//compDateValidator.Enabled = true;
txtExpirationDays.Enabled = false;
RequiredFieldValidator1.Enabled = false;
RangeValidator1.Enabled = false;
}
}
}
private void EnableCorrespondingTextbox()
{
switch (rbExpiration.SelectedItem.Value)
{
case "rbExpirationInDays":
txtExpirationDays.Enabled = true;
RequiredFieldValidator1.Enabled = true;
RangeValidator1.Enabled = true;
txtExpirationDate.Text = String.Empty;
txtExpirationDate.Enabled = false;
RegularExpressionValidator1.Enabled = false;
CalendarExtender2.Enabled = false;
RequiredFieldValidator2.Enabled = false;
//compDateValidator.Enabled = false;
break;
case "rbExpirationDate":
txtExpirationDate.Enabled = true;
RegularExpressionValidator1.Enabled = true;
RequiredFieldValidator2.Enabled = true;
CalendarExtender2.Enabled = true;
//compDateValidator.Enabled = true;
txtExpirationDays.Text = String.Empty;
txtExpirationDays.Enabled = false;
RequiredFieldValidator1.Enabled = false;
RangeValidator1.Enabled = false;
break;
}
}
protected void OnSelectedIndexChangedMethod(object sender, EventArgs e)
{
EnableCorrespondingTextbox();
}
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Jun 6, 2010
![<asp:RadioButtonList ID="RdoBtnHasNotified" runat="server" RepeatDirection="Horizontal" AutoPostBack="True" OnSelectedIndexChanged="RdoBtnHasNotified_SelectedIndexChanged">
<asp:ListItem Value="1">Yes</asp:ListItem>
[code]...
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May 6, 2010
I have a asp.net page where we need to dynamically generate a table, table row, and a checkbox controls in this row. A button serves Add Row and create checkbox function, which works fine. We have another button which serves on deleting the selected row if a user checks the checkbox. The deleting event is dynamically added to the checkbox. But the delete button is not working at all. I think that the page does not maintain the states of dynamically generated controls, even I set Page enable view state to True. Here is the code:
I am generating a table dynamically with one row having four cells.
First cell is having checkbox and below is the code how i declare it and assign it a new id at runtime.
[Code]....
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May 7, 2010
This is driving me nuts, I cant figure out why the event OnClick doesn't fires when using a rewritten url (using URLRewritngNet).
Buttons lies everywhere on several pages and at the master page too.
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Nov 4, 2010
I have a User Control that has been added to the page dynamically. When I click a button on that user control:
The button_click event is NOT being raised
The page posts back
The user control is removed from the page
Here's the button-click event on my User Control:
Protected Sub btnAddAttribute_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAddAttribute.Click
Try
Dim attrName As String = txtAddAttributeName.Text
Dim attrValue As String = txtAddAttributeValue.Text
'ADD ATTRIBUTE TO ATTRIBUTE TABLE
putSQLData("INSERT INTO OD_Attribute_Values (AttributeName, AttributeValue) VALUES('" & attrValue & "', '" & attrName & "'")...........
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May 6, 2010
I'm developing IP Blacklisting HttpModule in asp .net application and I found one very annoying thing. Each request to the asp net page generates tens of "subrequests" to application resources like images, client side scripts, styles etc.
Now in my application I'm listing to the BeginRequest event and when it is fired I'm loading Dictionary with blacklisted IPs from application cache and check user's IP against it. I've made a simple log of what is actualy happening during each page view, here are the results:
[Code]....
As you see, one request to Login page causes BeginRequest to fire 18 times, there is 18 dictionary loads, 18 lookups etc. That's not the way I want it to be.
Is there any other event that is raised only once per each request? Where do you place the blacklisting mechanism in your applications? I know I can do it through ISAPI filter, but the catch is, this site is on the shared hosting and I'm not sure I can use it on their IIS. Also I'm not sure if ISAPI filter can access some piece of cache with this blacklist (I don't want to load it from DB on each request, that's obvious).
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Oct 6, 2010
In the last cell of my gridview I have 2 separate linkbuttons. I want to further process them using Gridview Onrowcommand event but How would I know which particular link has actually raised the event.
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May 21, 2010
I have an issue with the object datasouce caching. Users are seeing other peoples cached records when they click next on the grid. It looks as though the caching is shared among users. Bascially when the user get to the screen they have date filters so they can further filter down the records. If another user it in at the same time and the first user hits next they get the second users filtered records.
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May 24, 2010
have an ObjectDataSource with the following configuration:
[Code]....
And the 'Select' parameters will aid in making a 'unique' combination per user selection to populate the GridView it is bound to:The problem that is occurring is that GridView search results are indeed cached, but the cache is a little too public and shared between all users currently running the application. So if user1 creates a search that populates the GridView with 100 results based on some unique dates and CategoryID, and then user2 in a separate browser does another search with different dates and a different category
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Dec 9, 2010
i try optimize my web site, i read if i enable caching on the script resource handler my site improve perfonmance
<system.web.extensions> <scripting> <scriptResourceHandler enableCompression="true" enableCaching="true"/> </scripting> </system.web.extensions>
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Jan 10, 2013
On PageSpeed Insights they recommend highly doing two things:
1) Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
2) Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
We are with Network solutions and believe they are using IIS 6 with regular asp.net code. Some of the images are using Amazon S3/Cloudfront.
How do we implement the above items? I see a lot for IIS 7.
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Nov 29, 2010
how to use FilterExpression with an object datasource when it is bound using a selectmethod that returns a list of entity objects?
I get the following error when I attempt it.
The data source 'testODS' only supports filtering when the SelectMethod returns a DataSet or a DataTable
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Jan 19, 2011
I have two update panels and in the second update panel i have asp.net button and onclick of the button in codebehind i have disabled it like btnAddSecurity.Enabled = false;
When I disable the button i enable a cancel button before it and on cancel button when i try to enable the btnAddSecurity.Enabled = true it simply doesn't work. Both of my updatepanels updatemode is conditional. what is the problem?
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May 7, 2015
Am using DropDown list. Whenever Autopostback is true it selecting first value of dropdown list...
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Mar 29, 2011
I'm having trouble managing how to call upon databind from clicking on a row over an already populated repeater that will populate data regarding the row clicked TO another repeater on the same page.
I've succeeded doing that with postback, calling a jquery click event of that row, taking the data of the specific row and passing it onto a "Querystring" and after postpack, it will be pushed into a Session which the ObjectDataSource of the secondary repeater will recognize and populate the data tables accordingly.
The problem is, I must do it without a postback or in other words purely on client side.
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Jan 5, 2011
how can i access the my sqldatasource selected datasource for modification and adding for example new datacolumns before binding??where is the best place to perform these modifications ?i guess SqlDataSource1_Selected is the right place, but i don't know how ?
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Jul 15, 2010
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?
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May 7, 2015
I have House_info table with Storetype column and I have radiobuttonlist in my page below is code
<asp:RadioButtonList ID="RBLType" runat="server" RepeatDirection="Horizontal">
<asp:ListItem Value="Galary"><span style="color:#676767">Galary</span></asp:ListItem>
<asp:ListItem Value="Product"><span style="color:Red">Product</span></asp:ListItem>
</asp:RadioButtonList>
Now I want if in Storetype column in database was="Product" then radiobutton item with text="Product" selected=true and if in store type column was="Galary" radiobutton item with text="Galary" selected="true"
How I can do it?
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Oct 28, 2010
I have a couple of dropdownlists and a button.when a user selects an item in the 1st dropdownlist,the 2nd dropdown is programmatically bound to a set of items(using an ajax request) depending on the value selected in the 1st dropdown.Then the user will have the ability to choose an item from the 2nd dropdown and click on the button,which performs some server side opeartions and returns the results.
But if the user tries to click on the button before the 2nd dropdown list is populated,user will receive an exception message.Instead of that I would like to prevent the user from clicking the button before the ajax request is completed to populate the 2nd dropdown.I tried using Button1.Enabled=false in the selectedvaluechanged event of 1st dropdown,which does n't seem to work.
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Feb 18, 2011
Some items don't have write access right due to workflow state write not being granted.When I click write access right in Access Viewer
Access Viewer informs me that selected user don't have access right due to workflowstate write acess right:
Unfortunately I'm not able to set it 'manualy' through security editor:
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May 7, 2015
I have a dropdown list for the which values are coming from DB. There is one option name OTHER, when I select other the textbox appears. For that Textbox I have made a required field validator. Till here it works fine. But when I select any other option, still it gives me validator errors. It should not happen. It should only give me required field error when the user doesn't fills the textbox on select of OTHER option. Please see the code.
Dropdown and Textbox code:-
<asp:DropDownList ID="ddlGraduation" runat="server" CssClass="txtfld-popup_drp"></asp:DropDownList>
<asp:RequiredFieldValidator CssClass="error_msg" ID="reqGraduation" runat="server" ControlToValidate="ddlGraduation"
ErrorMessage="Please select graduation details" InitialValue="--Select--" SetFocusOnError="true"></asp:RequiredFieldValidator>
<asp:TextBox ID="txtOther" runat="server" CssClass="txtfld-popup_p"></asp:TextBox>
<asp:RequiredFieldValidator ID="reqOther" runat="server" ControlToValidate="txtOther" ErrorMessage="Please specify your qualification"></asp:RequiredFieldValidator>
JS code for hiding and show the textbox when user select and deselect the OTHER option from dropdown list:-
<script language="javascript" type="text/javascript">
function pageLoad() {
$('#ctl00_ContentPlaceHolder1_txtOther').hide();
$('#ctl00_ContentPlaceHolder1_ddlGraduation').change(function () {
if ($(this).val() === "Other") {
[Code] .....
How to achieve this...
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Dec 31, 2010
I have a problam in Gridview paging.
I create a gridview with 2 boundfield and check box in tamplet field. and allow paging True.
I maintaing a Chekcbos status while page index change. Its fine But
I have a button outside gridview to store a data in DB.
Now i want that on button clicking all selected Chekbox rows to stored in DB.
Means Gridview loop like
Each page each row if find checkbox selected pick this row store in DB .
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Apr 16, 2010
how do i check if gridviewrRow is selected ... ?
like when you load the page at first you not on eny row ... you need to select ...
how do i check if a row has been selected (eny row);
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Dec 20, 2010
Take for example a DetailsView control with an ObjectDataSource as its datasource.Normally in the DetailsView.ItemUpdated event I would grab a reference to the details view by casting the sender:
DetailsView dv = (DetailsView)sender;
In certain situations it becomes necessary to handle the event inside the ObjectDataSource.ItemUpdated event. In this case sender is now of type ObjectDataSource. What I want to be able to do is write clean code that isnt hardcoded like
Label label1 = DetailsView1.FindControl("Label1");
I looked over the documentation and also did some searches but couldnt find how I would write some code like the following:
protected void ObjectDataSource1_Inserted(object sender, ObjectDataSourceStatusEventArgs e)
{
ObjectDataSource ods = (ObjectDataSource)sender;
DetailsView dv = (DetailsView)ods.SOMETHING_HERE;
}
what I should be putting in the SOMETHING_HERE in the snippet above?
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