Forms Data Controls :: HTML Component OnServerClick Does Not Trigger
Aug 20, 2010
I'm new with ASP.NET, and this is my first project that make myself cruel. I'm trying to create a link on every row that created dynamically.(I'm using GridView). The Problem is, the onserverclick eventhandler show nothing.? Heres the code:
public void GridV_RowDataBound(object sender, GridViewRowEventArgs e) {
if (e.Row.RowType == DataControlRowType.DataRow) {
e.Row.Cells[0].Text += "<font id='12345' runat='server' color='blue'
BACKGROUND-COLOR='#9471DE' style='cursor: pointer' Title='Click this:
to view to the Root menu of the thread'><U> <a onserverclick='Submit_Click'>This is description</a></u></font>";
e.Row.Cells[0].Text += "<br/>";
e.Row.Cells[0].Text += "<div id='DataDiv' style='overflow: auto; border: 1px solid olive;
width: 888px;'>"; //height: 300ox; onscroll='Onscrollfnction();'>";
FindHttpVideo1(dDataset.Tables[0].Rows[e.Row.RowIndex].ItemArray[0].ToString(), e, 0);
e.Row.Cells[0].Text += "</div>"; } }
Here the click EventHandler on also on code behind :
protected void Submit_Click(object sender, EventArgs e) {
Label1.Text = "Hello --->"; }
I don't want use Java script to for onclick() handler, I want to do it on code behind.
I would like to replicate this functionality with the asp:DropDownList control i.e. I have several dropdowns which I would like to call the same code behind routine. However it seems that asp controls do not support the OnServerClick option. Is there a way to explicitly define which code behind routine to call on an asp control?
I have been experiencing some very strange behavior using html buttons with the onserverclick attribute. What I am trying to do is use jQuery to designate the default button on the page. By default button I mean the button that is "clicked" when a user hits enter. In testing, I would hit enter while in an input field and sometimes the intended "default" button was clicked and the server side method defined in the corresponding onserverclick attribute was hit. Other times a post back was made without hitting the server method. In order to isolate the issue I created a minimal test case and found some very interesting results.
Client side: [Code] ....
Server side: public partial class admin_spikes_ButtonSubmitTest : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void ServerMethod1(object sender, EventArgs e) { _response.Text = "server method1 was hit"; } protected void ServerMethod2(object sender, EventArgs e) { _response.Text = "server method2 was hit"; } }
What I found was that everything worked as expected with this code except when I removed one of the input elements. In Firefox 3.6 and IE 8 when only one input exists on the page, hitting enter does not trigger the onserverclick, it makes a post back without even being jQuery "clicked" or actually "clicked". You can test this by starting with two inputs and clicking "test2". This will output "server method2 was hit". Then just hit enter and the output will be "server method1 was hit. Now take away an input and run the same test. Click "test2" see the results, then hit enter and you will see that nothing will change because the "test1" method was never hit. Chrome worked as expected
I am trying to stop the data flow when certain conditions happen in the script component. Like if a row in the data set has an invalid date, I dont want that dataset to be inserted in the tables or go through OLEDB Destination, rather I want the entire data flow for that dataset to stop and go back to the control flow page.
I have tried mulitple solutions but nothing worked. Conditional Split ends up inserting the correct rows, but I just dont want anyting to be inserted when one row is bad, where as I do want the entire dataset to be inserted if all rows are good.
How can I fail the component when certain conditions happen int eh script component.
i got a problem.. how i can declare template textbox in a datagrid at code behind? i already make a stored procedure and put the update query inside it.. if i declare the textbox inside code behind(.aspx.vb).. there will be an error.. " there is already a component named "txtitem1"component must have a unique name.."
I would like to know how can I list for every page (child page) selected the number and id of localize component in the current page. I need this to update resources files, a button will be on the master page and when they click on it, they will go to a page which show up every data in the resource file.
I am trying to translate a chart from a classic asp componant to a 3.5 chart control. I have two problems so far:
1) (hopefully easy) For the XAxis and YAxis titles (not labels), how do you make these titles bold?
2) (seems impossible with .net) How can I break up the background color so that certain parts of the background are different colors? In the legacy control, the original programmer could drill down control to the y-axis lines for coloring the background.
Example in a Y-axis with lines from 0-100 with 10 intervals:
a) 0-50: the background color would be BLUE b) 50-80: the background would be GRAY c) 80-100: the backgound color would be RED
As far as I can see, with the .net chart control, you can only have a single color or a single gradient of two colors, but not striped as I am trying to describe above. It seems that if an old classic asp componant has this striping functionality, the .net control has got to have it somehow.
I have a UpdateProgress that trigger fine when I click on stuff inside my UpdatePanel. However I have some regular HTML link ("<a href>") outside of the panel. How can I reuse the UpdateProgress so when I click on those link, it will show my loading screen?
I would like to do the validation work using javascript or jquery in onclientclick and then show blockUI, next page using server click. But, I have a captcha validation in server click and I don't know how to validate the captcha in jquery or javascript.
protected void btnRegister_Click(object sender, EventArgs e) { lblMessage.Text = ""; if (Page.IsValid) { if (txtUserName.Text == "") { lblMessage.Text = "نام کاربری را وارد نمائید"; txtUserName.Focus(); return; } if (!BLL.IsStrictPassword(txtPassword.Text)) { lblMessage.Text = "طول کلمه عبور حداقل باید 5 کاراکتر باشد"; txtPassword.Focus(); return; } if (ddlYear.Text == "<سال>" || ddlMonth.Text == "<ماه>" || ddlDay.Text == "<روز>") { lblMessage.Text = "لطفا تاریخ تولدتان را وارد نمائید"; return; } if (!chk_Low.Checked) { lblMessage.Text = "برای عضویت می بایست قوانین سایت را بپذیرید"; return; } if (txtSecurityCode.Text == String.Empty) { .Text = "کد امنیتی را وارد نکرده اید"; txtSecurityCode.Focus(); return; } secCode.ValidateCaptcha(txtSecurityCode.Text); if (!secCode.UserValidated) { lblMessage.Text = "کد امنیتی نادرست وارد شده است"; return; } try { //some code } }
I am have a page with a couple of dropdowns which serve as criteria for a select SPROC. Once a selection is made in a drop down a panel is shown which contains gridview whose rows have been returned by the select SPROC.If you close the panel and change the drop down selection and then redsplay your panel the data from your prior selection is still displayed in the gridview, unless you page to the next group of records.
I am working on a datagrid that has a column with checkboxes... the checkboxes should be checked when the page loaded. The problem is that whenever I trigger a postback, all the checkboxes will be unchecked!!
I don't know what is causing this or what should I do to prevent it from unchecking the checkboxes.
I've created some dynamic buttons on page load but the buttons need to have an onserverclick event and pass a value. I used buttons because they can pass a value. My code below so far, just outputs onserverlick to the html page, which is obviously not what I want. Would it be possible to use some other method, I originally used hyperlinks until I needed to pass a value (I didn't want to use querystrings). [Code]....
I have 3 gridviews in one of my web page, each of which will display different data based on the typeid. I have simplified the system structure in the image below(further description will be stated below the image):
As shown in the image above, the web site(presentation layer) will work closely with the Business Logic layer(BLL) and Data Access Layer(DLL). ObjectDataSource control will be the middle man to select, update, insert and delete the data in the gridviews.
During Select, returned data from the database at DAL will be stored in a datatable and return to BLL and then the website itself.
[code]....
However, the Update(command button) and Delete(template field) doesn't work,the RowUpdating and RowDeleting event wasn't trigger when I click on the button, but it works if I set the gridviews' datasourceid to the objectdatasource.
I have a page that displays a grid view based on a query string. When I click the edit button I need to send the grid view into edit mode based on the query string. I have this so far:
[Code]....
When I requested the page the first time, the grid view displayed properly, and when I clicked the edit link button, it did trigger the update mode. However, I can't get the cancel mode to operate properly; in other words, cancel never sends it back to normal mode, as a result, with each new page request, I'm always stuck on the last edited record.
We have the requirement to export the data from the grid excel. We can't install the Excel on the server. The excel generated need to be in the printable format. The excel generated needs to have custom headers, footers, repeatble rows, columns and landscape / portrait orientation style.
The following seems reasonable, but it returns an error:
<asp:Repeater ID="RepeaterF" runat="server" DataSourceID="DSF" > <ItemTemplate> <% If Eval("Item_Batch") = 0 Then %><tr><td></td><td colspan="2"></td><td></td></tr><% Else %>........
Error: "Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control."
I am finding it difficult to accept that the whole Repeater approach has any benefits over just creating a loop in code, iterating through a recordset, and building a html table into a variable, then dumping it to the page. This repeater is spawning pages of code and objects, and surely this is all using up server resources.
Here's what is in my .aspx: <div> <input id="testButton" type="image" src="<%=TestImageUrl %>" onserverclick="RedirectTest" /> </div>
And in my code-behind this: protected void RedirectTest(object sender, EventArgs e) { // Logic is here}
It's not hitting my method at all when I click the image. And please note, I do not want to use an ImageButton. I want to figure out how to get this working with a plain old input tag.
We are using Office Web component V10.0 in ASP.NET 3.5 website. The rquiremetn is to display xml data in OWC Pivot table component. How can I acheive that?