I'm trying to use the ImageButton control for client-side script execution only. I can specify the client-side script to execute using the OnClientClick property, but how do I stop it from trying to post every time the user clicks it? There is no reason to post when this button is clicked. I've set CausesValidation to False, but this doesn't stop it from posting.
View 3 RepliesI created a form in a popup div, that contain an UpdatePanel with ImageButtons in it.Initially, I used LinkButtons to test but I wanted ImageButtons. The thing is, it works well with LinkButtons and not with ImageButtons (absolutely nothing happens).
<a href="javascript:WebForm_DoPostBackWithOptions(new
WebForm_PostBackOptions("ctl00$cphC$ctrlAdr$AdrMapo$lbAdresseSaisie",
"", true, "",
"", false, true))"
id="ctl00_cphC_ctrlAdr_AdrMapo_lbAdresseSaisie">test</a>
[code]...
I have an imagebutton in Gridview control which is placed in ajaxtoolkit:TabPanel. Clicking on the imagebutton for the first time works fine. It posts back and does the desired action. However, when IsPostBack is true, it doesn't work. Even the onclick event is not called although the page posts back. Please help. Given below is the code for the same:
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I want to create a dynamic, role-based tab control that doesn't trigger a postback when the user switches between tabs.
View 3 RepliesI´m trying to use ImageButton to link to another page. ImageButton is inside a Repeater and the code is following:
<ul id = "ulMap">
<asp:Repeater ID="Repeater1" runat="server" >
<ItemTemplate>
<li>
<asp:ImageButton ID="ImageButton1"
CommandArgument='<%#Eval("Nav_ID") %>'
runat="server"
[code]...
I have a UserControl with a ModalPopupExtender that shows a Panel with a GridView. I use this UserControl inside an UpdatePanel.The issue is that I'm using a LinkButton in a TemplateField of the grid that sends a Command and it is working well. If I replace the LinkButton with an ImageButton, the AJAX call raises an error 500 (and I don't know how to debug it). As I understand, the ImageButton will send the same CommandName to the same OnRowCommand handler as the Linkbutton.
View 2 RepliesIn my project when i click any button or linkbutton, it doesnt fire any event or doesnt postback.
It was working fine but now it hv problem like this.
I think i have changed some settings by mistake.
Why isn't the image displayed? The folder images is in the same folder as the .aspx file.Why doesn't it invoke the ImageButton1_Click method when I click on the image? The OnClick should be for the server side.The ImageButton1_Click method takes 2 parameters, but why OnClick does not require 2 parameters?
<asp:ImageButton
ID="ImageButton1"
runat="server"
ImageUrl="images/export.gif"
OnClick="ImageButton1_Click"
/>
protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
{
Label1.Text = "You've clicked the image button.";
}
I have to add this line to the Page_Load method in order for it to invoke the ImageButton1_Click method when I click on the image, why?
ImageButton1.Attributes.Add("onclick",
"ImageButton1_Click()");
This line works fine too:
ImageButton1.Attributes.Add("onclick",
"ImageButton1_Click('report.xls', GridView1)");
The 2 parameters are: object sender, ImageClickEventArgs e. What are they and why I pass in a string and a gridview, which I don't think match with the arguments definition, and it still works?
I have an asp page that has an iFrame. In the onload event of the iFrame, the javascript code copies the content of the iframe to the div. The iFrame has src="test.aspx" and hence displays the content of the test.aspx inside the div.Test.aspx page contains and imageButton, which does not show up in the iFrame.I am getting the following issues:1. the image does not show up (cannot see test.gif)2. When i click on the imagebutton link, it tries to search for test.aspx in the directory where the asp page resides inside of the actuallocation/directory of the aspx page.
View 3 RepliesMy message application has high and low priorities ImageButtons on it. By default the message is low priority.
Question how do stop a postback for an ImageButton? Or can you, onclientclick does not work.
why the postback isnt working in the following code. The code is within a datalist.
<asp:ImageButton ID="ImageButton1" runat="server" ImageUrl='<%# Eval("ImagePath", "~/members-images/{0}") %>' PostBackUrl='<%# Eval("ID", "~/members/users-profile.aspx?UserID={0}") %>' width="160px" />
I have embedded an ImageButton inside a GridView.Now I am using a loop to just make the ImageButton visible on the first row and that works great. I use the FindControl to do that and are also putting an Image to that button on the first row.Now is my problem this that this button also needs to have an URL attached to it so when pressing this button it will be possible to open up a Browser with this URL attached to it. I need to use the code that I have in the ImageButton6_Click event as this code is working with IE, Firefox etc... It seems that I should have gotten this correct but dont know why the ImageButton6_Click event isn´t firing when pressing the button. What I get is an Errorpage that says "Invalid postback or callbak argument" etc...
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how will open an image in new window from imagebutton' s postbackurl on onclick of image..
View 4 RepliesI am having one Image button in web page. how to set the postbackurl with server side values to  query string values.
Default.aspx.CS
public static string strValue="abc";
Â
Default.aspx
<asp:ImageButton runat="server" ID="imgCancel" PostBackUrl="~/Login.aspx?Name=strValue" ImageUrl="~/Images/cancel.png" />
I have a page that uses a master page. The following code only shows the bare minimum of the page:
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Code-behind:
[Code]....
The [Code]....
My guess is that it may releated to the ID's that are recreated.
i have some textbox that i validate with a customvalidator control (only, and must be, server side function) and i have an imagebutton control for submit.I must stop the postback if there are some errors in the validation function.I set the validation property argumets.isvalid = false in the customvalidator function but doesn't work, the postback continue.i have tried to set the imagebutton property postbackurl = "" in the validation function but doesn't work.
View 8 RepliesI have just found the solution. The following function works (remove the else part):
function confirmSubmit() {
if (Page_ClientValidate("Group1")) {
return window.confirm("Are you sure to submit the form?");
}
}
But I am wondering why it doesn't work when I add the else part.
Question:
I want to have a confirm dialog after user fills in all the data in the form. I set onclientclick="return confirmSubmit()" in the submit button.
function confirmSubmit() {
if (Page_ClientValidate("Group1")) {
return window.confirm("Are you sure to submit the form?");
} else {
return false;
}
}
If Page_ClientValidate("Group1") returns false, the dropdownlist doesn't cause postback after I first select the item, and the postback only occurs when I select the dropdownlist second time.
I've created two datasources, one that gets a list of categories and it's id's and the other one get subcategories and it's id's. The categories are presented in a DropDownList and the subcategories in a ListBox. When choosing a category from the DropDownList the ListBox presents the subcategories of the chosen category. The subcategory datasource is set to get it's value for what category to get from the DropDownList's selected value.
My problem is that when I change the category in the DropDownList the subcategories doesn't update on a postback. Instead I have to press a button on the page that I know performs a postback to get the subcategories to update. What am I doing wrong here? I'm using this method on another page as well and when comparing them I can't find anything different. Any ideas?
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Then, in the codebehind I have this code:
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This works fine when I display the page. However, when I click the language link which causes a postback the content block does not get added to the placeholder, so I get a null reference because those two panels don't exist. I've been pulling my hair out over this for a few hours now and I can't figure it out. In case it helps, here is my InitializeCutlture method:
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Why with LinkButton doesn't work postback with IE7 and work with FW3.+ when site work on IIS7?
View 3 RepliesI have a usercontrol that is in an asp.net page that contains a button. The event on the button does a simple response.direct all is fine if the page doesnt contain a query string however if the page contains a query string. e.g. default.aspx?id=12345 then the postback doesnt occur on the button.
Is this a common issue? what do I need to do to enable postback on the button if there is a querystring?
I have a page with a drop-down. Based on the selection in the drop-down, data gets loaded and populates a RadGrid. I am using a custom user control for the EditTemplate, so I can't use radGrid.DataBind(). Instead, I have to use radGrid.MasterTableView.Rebind() in association with a NeedDataSource event handler.
My problem is that when I load the page initially, I populate the drop-down and automatically select a value (first item in the list) which triggers the databinding on the RadGrid. I can step through the code in debug mode and see that the grid is being populated with data, but when the page displays, it doesn't get rendered. When I then manually choose an item from the drop-down, which triggers the same grid databinding code, it displays properly the second time.
How do I get it to display the grid the first time the page loads?
I've some really strange behaviour with a simple ASP.NET Button. Here's my code:
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For some reason the first time I click this button, the code is beeing fired. When login credentials are wrong, a message shows up. THen, the user inserts the right credentials. After clicking the 'cmdLogin' button, nothing happens and the old (wrong) values are beeing filled in inside the textboxes. This behaviour occured to me after switching to ASP.NET 4.0.
My dropdown controls do not keep the values after postback even though their EnableViewState is = true and in Page_Load I fill my controls ONLY if not postback.
My controls are inside a panel and the panel's EnableViewState is set to true as well...
To see the page you can log in as test and password is 12345
click on search page and set a value to say Gender and Ethnicity and click submit.
You will see the results, then navigate to number 2 or 3... You will see that it refreshes the controls and sets them to default.
I have a small website where I want to display a confirmation dialog after clicking on a button.
When you click the confirmButton the dialog appears. Then you can choose between Yes or No to either continue with the PostBack or to return.
Problem: The first time you get into the site all works fine. But after you click Yes to continue with the PostBack, no click event will be triggered anymore.
Here is some code.
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