I'm trying to get my hovermenuextenders to do some lazy loading. I have avatars across the site that when hovered over should pull back various things (images, recent posts, post count, etc) For obvious reasons I don't want to do this for all avatars on the page_load.
Using the following code I'm able to get the hover event to trigger a postback to the server asynchronously (breakpoint is hit onmouseover). However, the commands in the postback don't seem to be reflected after execution is done. The loading image/label stay in the hover panel. Any help is appreciated!
EDIT: I just realized that the very last avatar rendered on the page works properly but none of the ones above it do. Any ideas what might be causing this strange behavior?
<script language="javascript" type="text/javascript">
function OnHover(image) {
__doPostBack('<%= this.imageHoverTrigger.UniqueID %>', '');
}
</script>
<!-- DUMMY Hover Trigger -->
<input id="imageHoverTrigger" runat="server" style="display:none;"
type="button" onserverclick="imageHoverTrigger_Click" />
<!-- User Avatar -->
<div style="border: solid 1px #AAA; padding:2px; background-color:#fff;">
<asp:ImageButton ID="UserImg" runat="server" />
</div>
<!-- Hover tooltip disabled by default
(Explicitly enabled if needed)-->
<ajax:HoverMenuExtender ID="UserInfoHoverMenu" Enabled="false" runat="server"
OffsetX="-1"
OffsetY="3"
TargetControlID="UserImg"
PopupControlID="UserInfoPanel" dyn
HoverCssClass="userInfoHover"
PopupPosition="Bottom">
</ajax:HoverMenuExtender>
<!-- User Profile Info -->
<asp:Panel ID="UserInfoHover" runat="server" CssClass="userInfoPopupMenu">
<asp:UpdatePanel ID="UserInfoUpdatePanel" runat="server" UpdateMode="Conditional" >
<ContentTemplate>
<asp:Image ID="loadingImg" runat="server" ImageUrl="~/Design/images/ajax-loader-transp.gif" />
<asp:Label ID="loadingLbl" runat="server" Text="LOADING..." ></asp:Label>
<asp:Panel ID="UserInfo" runat="server" Visible="false">
<b><asp:Label ID="UserNameLbl" runat="server"></asp:Label><br /></b>
<span style="font-size:.8em">
<asp:Label ID="UserCityLbl" runat="server" Visible="false"></asp:Label> <asp:Label ID="UserStateLbl" runat="server" Visible="false"></asp:Label>
</span>
</asp:Panel>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="imageHoverTrigger" />
</Triggers>
</asp:UpdatePanel>
</asp:Panel>
And the code-behind:
protected void Page_Load(object sender, EventArgs e)
{
UserImg.Attributes.Add("onmouseover", "javascript:OnHover(this)");
}
protected void imageHoverTrigger_Click(object sender, EventArgs args)
{
// Hide loading image/label
loadingLbl.Visible = false;
loadingImg.Visible = false;
//TODO: Set user data here
UserInfo.Visible = true;
}
Figured it out:
My Page_Load event hookup should've been:
UserImg.Attributes.Add("onmouseover", "javascript:OnHover('" + this.imageHoverTrigger.UniqueID + "','" + this.hiddenLbl.ClientID + "')");
UserImg.Attributes.Add("onmouseout", "javascript:ClearTimer()");
and the javascript function should've been:
var hoverTimer;
// Called on the hover of the user image
function OnHover(trigger, hiddenTxt) {
var field = document.getElementById(hiddenTxt);
// Only post if this hover hasn't been done before
if (field == null || field.innerHTML == "false") {
hoverTimer = setTimeout(function() { ShowInfo(trigger) }, 500);
}
}
// Clears timeout onmouseout
function ClearTimer() {
clearTimeout(hoverTimer);
}
// Retrieves user info from server
function ShowInfo(trigger) {
__doPostBack(trigger, '');
}
I also added a hidden field on the form in order to know when the hover has been executed. The code behind sets the hidden field to true and my javascript checks for the value of the hidden field each time it executes. This stops the code from doing round trips each time the user hovers over the image.
Related
I'm having trouble trying to clear these banking and routing numbers that are in a textbox on an aspx page. I've seen it used where they would just specify the ID of the textbox and do a textbox.text = String.Empty(). But that doesn't seem to work here. Maybe I'm using the wrong ID?? I also tried using JQuery .val("") but that didn't seem to work either.
Here's the code, i'd like to clear both Routing and Account text fields on click of a button:
<div id="DivUser1BankInfo" class="labelAndTextboxContainer">
<div class="labelContainer">
<asp:Label CssClass="rightFloat" ID="User1LabelRoutingNumber" runat="server" Text="Routing #:"></asp:Label><br />
</div>
<div class="textboxContainer">
<asp:TextBox ID="User1TextRoutingNumber" CssClass="leftFloat " runat="server" Font-Size="Smaller" Width="180px"
Text='<%# Bind("User1BankRoutingNumber") %>'
Visible='<%# ApexRemington.BLL.VendorBLL.ShowUser1BankInfo((string)Eval("User1BankInfoEditUser")) %>' /><br />
</div>
<div class="labelContainer">
<asp:Label CssClass="rightFloat" ID="User1LabelAccountNumber" runat="server" Text="Account #:"></asp:Label><br />
</div>
<div class="textboxContainer">
<asp:TextBox ID="User1TextAccountNumber" CssClass="leftFloat " runat="server" Font-Size="Smaller" Width="180px"
Text='<%# Bind("User1BankAccountNumber") %>'
Visible='<%# ApexRemington.BLL.VendorBLL.ShowUser1BankInfo((string)Eval("User1BankInfoEditUser")) %>' /><br />
</div>
<button type="button" id="clearButton1">Clear</button>
<div class="button">
<asp:Button ID="User1ClearBankInfo" runat="server" Text="Reset"
Visible='<%# ApexRemington.BLL.VendorBLL.ShowUser1BankInfo((string)Eval("User1BankInfoEditUser")) %>' OnClick="clearFields_btn"/><br />
</div>
The OnClick= "clearFields_btn" code behind =
protected void clearFields_btn(object sender, EventArgs e)
{
}
Thanks for any help!
I haven't worked with ASP.NET in a little while, but I think you may want the OnClientClick event, not OnClick. OnClientClick is for client-side code (your jQuery/JavaScript) and OnClick is for server-side code (your C# or VB.NET).
You'd also want your OnClientClick event method to return false, or the server-side code will also fire.
So I think you want something like:
<asp:Button ID="User1ClearBankInfo" runat="server" Text="Reset"
Visible='<%# ApexRemington.BLL.VendorBLL.ShowUser1BankInfo((string)Eval("User1BankInfoEditUser")) %>
OnClientClick="clearText();"/>
And then clearText would look like this:
<script>
function clearText()
{
//our two IDs
$('input[id*="User1TextRoutingNumber"]').each(function(index) {
$(this).val('');
});
$('input[id*="User1TextAccountNumber"]').each(function(index) {
$(this).val('');
});
return false;
}
</script>
EDIT: shoot, I see my mistake. Fixed the code to clear the text of the textbox, not the button ("this").
Edit: removed the space from the "clear" text val.
EDIT: Made search a little more flexible, less dependent on GridView or no GridView.
Try this
<script>
var clear = function(textboxID){$('input[id*=' + textboxID + ']').val('');};
return false;
</script>
<button id="btClearText" onclick="javascript:return clear('txtName');">
but if you need a more specific answer then please post more information
You need something like this. Assuming you want a client side solution (not very clear from your question).
<script type="text/javascript">
function clearTextBox() {
document.getElementById("<%= User1TextRoutingNumber.ClientID %>").value = "";
//or
$("#<%= User1TextRoutingNumber.ClientID %>").val("");
}
</script>
The <%= User1TextRoutingNumber.ClientID %> will ensure you get the correct ID for javascript/jQuery.
A server side solution would be:
protected void clearFields_btn(object sender, EventArgs e)
{
for (int i = 0; i < GridView1.Rows.Count; i++)
{
TextBox tb = GridView1.Rows[i].FindControl("User1TextAccountNumber") as TextBox;
tb.Text = "";
}
}
I have this TextBox:
<asp:TextBox id="locSelectedCameraGroupName" runat="server" ></asp:TextBox>
I have this back end code:
protected void btnCameraGroup_ServerClick(object sender, EventArgs e)
{
locSelectedCameraGroupName.Text = "test string!";
}
This method is called after clicking a button:
<asp:linkbutton id="btnCameraGroup" runat="server" onclick="btnCameraGroup_ServerClick" onclientclick="ShowCameraGroupPopup()"
style="font-size: 1.2em; text-decoration: none; cursor: pointer; background-color:grey; ">
<!-- TODO: Make button have round corners...css? -->
</asp:linkbutton>
However, the text does not update. This is a user control. The line is reached (according to my debugger). When I move the line to my page load, it works. Is there something wrong I am doing?
The following method ShowCameraGroupPopup just shows/hides some tags I don't think it has much to do with the issue, but here it is anyways:
function ShowCameraGroupPopup() {
$('#<%=waitIcon.ClientID%>').show();
$('#<%=divMainContent.ClientID%>').hide();
$("#divCameraGroupPopup").modal("show");
return true;
}
This is the flow after clicking the link button:
Page_Load hit (is post back)
btnCameraGroup_ServerClick hit
Tab name = Second tab (this is the info I want, but for some reason the
text isn't updated)
I needed an UpdatePanel (and ContentTemplate) around the TextBox with a Triggers (AsyncPostBackTrigger) as so:
<asp:UpdatePanel id="groupNamePanel" runat="server" updatemode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnCameraGroup" />
</Triggers>
<ContentTemplate>
<asp:TextBox id="locSelectedCameraGroupName" runat="server" ></asp:TextBox>
</ContentTemplate>
</asp:UpdatePanel>
If you have Page_Load() event in your codes, change Page_Load() content like below:
private void Page_Load()
{
if (!Page.IsPostBack)
{
//copy previous page load codes here
}
}
Sorry to post perhaps a silly problem here, but I'm at my wits end with it. I have a hidden field with a button inside an update panel like so:
<asp:UpdateProgress runat="server" ID="updprCompLines" AssociatedUpdatePanelID="updpanCompLines">
<ProgressTemplate>
<img src="../Images/ajax-loader.gif" alt="Please wait..." /> </ProgressTemplate>
</asp:UpdateProgress>
<asp:UpdatePanel runat="server" ID="updpanCompLines" UpdateMode="Conditional">
<%--<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnFillMembers" />
</Triggers>--%>
<ContentTemplate>
<div>
<asp:HiddenField ID="hdnField" runat="server" />
<asp:Button ID="btnFillMembers" runat="server" style="display:none;"
Text="DummyButton" onclick="btnFillMembers_Click" />
</div>
The update panel also contains a gridview and inside my gridview I have a link button:
<ItemTemplate>
<asp:LinkButton ID="lkbtBenefName" runat="server" Text='<%#Eval("COMPETENCE_CODE") %>'
OnClientClick='<%#Eval("COMPETENCE_LINE_ID", "return SelectedCompetence({0})") %>'/>
</ItemTemplate>
The call is to a JS function that is supposed to call the above button:
<ajaxToolkit:ToolkitScriptManager runat="Server" EnablePartialRendering="true" ID="ScriptManager1" EnablePageMethods="true"/>
<script type="text/javascript">
function SelectedCompetence(CompetenceLineId) {
document.getElementById('<%= hdnField.ClientID %>').value = CompetenceLineId;
var clickButton = document.getElementById('<%= btnFillMembers.ClientID %>');
clickButton.click();
}
</script>
Button click event method:
protected void btnFillMembers_Click(object sender, EventArgs e)
{
lblGvMemError.Text = "";
lblGvMemError.ForeColor = Color.Red;
if (hdnField.Value != null || hdnField.Value.ToString() != "")
{
try
{
int CompLineId = Convert.ToInt32(hdnField.Value);
GetSelectedCompLineMembers(CompLineId);
}
catch (Exception ex)
{
lblGvMemError.Text = "Error: " + ex.Message;
}
}
updpanCompLinesMembers.Update();
}
The problem is that while debugging, it never runs the click event and it doesn't give any error messages either. I don't understand, I have a similar form where this works; I don't get why it doesn't here... Any help please?
Have you confirmed that SelectedCompetence is being called via an alert or similar? Additionally, have you made sure that the clickButton variable is being assigned to successfully?
I know this isn't an answer, but don't yet have the reputation to comment, and sometimes it's the easy stuff so maybe this will help! :)
I am working on asp.net web application.
In one Page I have two asp buttons.
I want to display them in one condition otherwise I don't want to display them.
So I'm trying to do the same like this. But Its not working.
I can't find the reason behind it. Please tell me where is the issue.
To Hide Buttons
if (!IsPostBack)
{
ButtonReplaceId.Style.Add("display", "none");
ButtonAssociateRules.Style.Add("display", "none");
}
To display buttons
protected void ApplyAssociation(object sender, EventArgs e)
{
//Some piece of code
if(a==0)
{
ButtonAssociateRules.Style.Add("display", "block");
ButtonReplaceId.Style.Add("display", "block");
}
}
aspx for buttons
<div style ="padding-left:400px;">
<asp:Button ID="ButtonAssociateRules" runat="server" OnClick="AssociateMultipleRulesButtonClick"
CssClass="search_button_in_vm_intersection" Text="Associate Multiple Rules"
OnClientClick="return OnClientClickAssociateRewardRuleFile();" />
<asp:Button ID="ButtonReplaceId" runat="server" OnClick="ApplyReplaceIfRuleIntersects"
CssClass="search_button_in_vm_intersection" Text="Replace Previous Rules"
OnClientClick="return OnClientClickReplaceRewardRuleFile();" />
</div>
aspx of button for OnClick event ApplyAssociation()
<asp:UpdatePanel runat="server" UpdateMode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" />
</Triggers>
<ContentTemplate>
<asp:Table runat="server" CssClass="rule_file_whole" BorderWidth="0" Style="padding-top: 30px;">
<asp:TableRow ID="MerchantRowAssociation" HorizontalAlign="Center">
<asp:TableCell>
<div style="text-align: center">
<asp:Button ID="AssociationMerchant" Text="Apply Association" runat="server" OnClick="ApplyAssociation"
CssClass="search_button_in_vm_associate1 " OnClientClick="return checkValidation()" />
</div>
</asp:TableCell>
</asp:TableRow>
</asp:Table>
</ContentTemplate>
</asp:UpdatePanel>
Seeing as you are using a conditional update panel, you can try either of these after putting the buttons inside an update panel.
protected void ApplyAssociation(object sender, EventArgs e)
{
//Some piece of code
if (a == 0)
{
ButtonAssociateRules.Style["visibility"] = "hidden";
ButtonReplaceId.Style["visibility"] = "hidden";
myUpdatePanel.Update();
}
}
protected void ApplyAssociation(object sender, EventArgs e)
{
//Some piece of code
if (a == 0)
{
ButtonAssociateRules.Visible = false;
ButtonReplaceId.Visible = false;
myUpdatePanel.Update();
}
}
Here's an example of your buttons inside an update panel.
<asp:UpdatePanel ID="myUpdatePanel" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<div style="padding-left:400px;">
<asp:Button ID="ButtonAssociateRules" runat="server" OnClick="AssociateMultipleRulesButtonClick"
CssClass="search_button_in_vm_intersection" Text="Associate Multiple Rules"
OnClientClick="return OnClientClickAssociateRewardRuleFile();" />
<asp:Button ID="ButtonReplaceId" runat="server" OnClick="ApplyReplaceIfRuleIntersects"
CssClass="search_button_in_vm_intersection" Text="Replace Previous Rules"
OnClientClick="return OnClientClickReplaceRewardRuleFile();" />
</div>
</ContentTemplate>
</asp:UpdatePanel>
You can simple use the Visible property of Button which is more straight forward and clean.
ButtonReplaceId.Visible = false;
If this property is false, the server control is not rendered. You
should take this into account when organizing the layout of your page.
If a container control is not rendered, any controls that it contains
will not be rendered even if you set the Visible property of an
individual control to true. In that case, the individual control
returns false for the Visible property even if you have explicitly set
it to true. (That is, if the Visible property of the parent control is
set to false, the child control inherits that setting and the setting
takes precedence over any local setting.) MSDN.
You are trying to change the state of control in ajax call that is not in current UpdatePanel. Put the buttons in the same UpdatePanel then you will be able to change the state.
ButtonReplaceId.Visible = false;
ButtonAssociateRules.Visible = false;
Scenario: I have a modal-style div that will be shown when the user clicks a button. At the time the div is shown, I need to get some data from the back-end to fill in some fields. Additionally, I'd like to use the jQuery method I use for all my modal windows (fades in the modal div, displays a background div as well as enabling the use of ESC key or "click offs" to close the modal).
It looks something like this:
<asp:ScriptManager ID="sc" runat="server" />
<asp:UpdatePanel ID="updForm" runat="server">
<ContentTemplate>
<h4>Testing jQuery calls combined with code behind actions</h4>
<div class="pad-content">
<asp:LinkButton ID="lnkShowIt" runat="server" OnClick="lnkShowIt_Click" Text="Load Form" OnClientClick="showForm()" />
<asp:Panel ID="pnlPopup" ClientIDMode="Static" runat="server" CssClass="box-modal" style="width:500px;display:none;z-index:1001">
<div class="header">Edit Estimate X</div>
<div class="content">
<div class="window">
<h5>Test Form</h5>
<asp:TextBox ID="tbxTime" runat="server" />
<br />
<asp:TextBox ID="tbxText" runat="server" Width="150px" />
<br />
<asp:LinkButton ID="lnkValidate" runat="server" CssClass="link-button-blue" Text="Validate" OnClick="lnkValidate_Click" />
</div>
</div>
</asp:Panel>
</div>
</ContentTemplate>
</asp:UpdatePanel>
<div id="backgroundPopup"></div>
So ... lnkShowIt calls both the jQuery (which will show pnlPopup) as well as the C# (which will populate tbxTime).
jQuery method actually just calls another method from a common js library I have that does the modal window stuff - I don't think that actual code is the problem but here is the simple function used for this page:
<script type="text/javascript" language="javascript">
function showForm() {
loadPopup('#pnlPopup');
}
</script>
Code behind methods look like this:
protected void lnkShowIt_Click(object sender, EventArgs e)
{
tbxTime.Text = System.DateTime.Now.Second.ToString();
}
protected void lnkValidate_Click(object sender, EventArgs e)
{
if (tbxTime.Text == tbxText.Text)
{
Response.Redirect("DynamicBoxesWithJQuery.aspx?mode=success");
}
else
{
tbxText.Style["border"] = "1px solid red";
}
}
I'm able to generate some level of success by doing the following but it seems like just a major hack and I have to assume there's a better approach:
protected void lnkShowIt_Click(object sender, EventArgs e)
{
tbxTime.Text = System.DateTime.Now.Second.ToString();
ScriptManager.RegisterStartupScript(this, this.GetType(), "OpenEditor", "<script type='text/javascript'>loadPopup('#pnlPopup');</script>", false);
}
protected void lnkValidate_Click(object sender, EventArgs e)
{
if (tbxTime.Text == tbxText.Text)
{
Response.Redirect("DynamicBoxesWithJQuery.aspx?mode=success");
}
else
{
tbxText.Style["border"] = "1px solid red";
ScriptManager.RegisterStartupScript(this, this.GetType(), "OpenEditor", "<script type='text/javascript'>loadPopup('#pnlPopup');</script>", false);
}
}
It seems like it should be easier than this, but the way the UpdatePanel keeps redrawing (and thus resetting the display:none on pnlPopup) is really causing me fits.
Thanks in advance
Solution I just found: putting the LinkButton in its own UpdatePanel and then the form in its own UpdatePanel and making sure the div that is the actual popup box is not in an UpdatePanel at all.
<h4>Testing jQuery calls combined with code behind actions</h4>
<div class="pad-content">
<asp:UpdatePanel ID="updLink" runat="server">
<ContentTemplate>
<asp:LinkButton ID="lnkShowIt" runat="server" OnClick="lnkShowIt_Click" Text="Load Form" OnClientClick="showForm()" />
</ContentTemplate>
</asp:UpdatePanel>
<asp:Panel ID="pnlPopup" ClientIDMode="Static" runat="server" CssClass="box-modal" style="width:500px;display:none;z-index:1001">
<div class="header">Edit Estimate X</div>
<div class="content">
<asp:UpdatePanel ID="updForm" runat="server">
<ContentTemplate>
<div class="window"style="min-width:500px;">
<h5>Here is a Test Form</h5>
<label>Time:</label>
<asp:TextBox ID="tbxTime" runat="server" />
<br />
<asp:Label ID="lblText" AssociatedControlID="tbxText" runat="server" ViewStateMode="Disabled">Text:</asp:Label>
<asp:TextBox ID="tbxText" runat="server" Width="150px" />
<br />
<asp:LinkButton ID="lnkValidate" runat="server" CssClass="link-button-blue" Text="Validate" OnClick="lnkValidate_Click" />
</div>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</asp:Panel>
</div>
Seems to do the trick without any Script Registers from the codebehind