Web Forms :: Add Eventhandler At Linkbutton In Gridview Or Querystring At The Posbackurl Attribute?
Mar 1, 2010
trouble with the gridview.First at all, I needed a dropdownlist in my gridview, I got it, but now I would like to add a new column with a linkbutton or link that send me to another page to edit an especific item (users in this case), but when I add the column and use templates to put a linkbutton I cannot add event to every linkbutton :(I do this in:
Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
Dim row As GridViewRow = CType(e.Row.Cells(0).NamingContainer, GridViewRow)
[code]...
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Apr 27, 2010
i have create two linkbuttons dynamically:
for (int i = 0; i < 2; i++)
{
LinkButton lb = new LinkButton();
[code]...
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Jan 10, 2013
i am having two logins,one login for employee and another login for hr,hr wants to create the payslip for every month,if the HR created the payslip for the particular employee,once created the payslip,the employee can login in his account ,if payslip is created it will be displayed in the gridview,in that gridview i provide a print option,,,and pass the employee id using the eval..my problem is,,if the particulare employee having the payslips details in the gridview,it will be order by month wise,if the user wants to take the print,if the employee want to take the print for the month of february,,when the employee clicks the print option by mistake january month record is printed,,i need to print februry as per the employee selection,,,this is my code,form1.aspxin gridview all the months of salary details will be displayed,
<Columns>
<asp:BoundField DataField="empcode" HeaderText="Employee Code"
SortExpression="empid" />
<asp:BoundField DataField="empname" HeaderText="Employee Name"
SortExpression="empname" />
<asp:BoundField DataField="month" HeaderText="Month" SortExpression="month" />
[code]....
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May 22, 2013
In my asp.net web i used the following code:
<asp:LinkButton ID="LinkButton1" runat="server"
PostBackUrl="unitlink.aspx?coy=tata">Tata</asp:LinkButton>
The data is correctly displaying in gridview.
There is a label (label1.text) in the same page i want to display the coy in that label along with the gridview....
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Sep 3, 2010
I was woundering if there is a way to seach for a gridview on event handler.? I have three gridviews in which i can insert from and on my insertbutton codebehind, I want to check the gridview i am using so i could get the datakeynames for insert into the database.
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Jan 27, 2011
I have a form action in an ASCX page set to an external URL
<form id="fLoginForm" runat="server" action="http://external.url" method="post" defaultbutton="bSignIn">
Inside there is a standard ASP linkbutton
<asp:LinkButton CssClass="btn" ID="bSignIn" runat="server" Text="Sign In" OnClick="bSignIn_Click" />
The event "bSignin_Click" never gets fired when I have ction="http://external.url" set on the form tag. However when I remove the action, it works as expected. I thought for runat='server' forms, the form would always post back? I need to read the URL from the action attrib and then redirect to it with some hidden input values also in the page.
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Jun 2, 2010
I need to remove a querystring when a user clicks a particular LinkButton. So for example if the querystring is [URL] when the user clicks on the Linkbutton, I want the url to be [URL]. The issue is that everything is on one page, and I am using asp:panel to show and hide different areas of the webpage.
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Mar 10, 2010
I am banging my head with gridview at the moment. There's a problem I just can't get my head around. I'd be very greatful for any advice given. I have a function that creates a DataTable with three columns and four rows. In each of the cells I set the text to a random number through RowDataBound event. I would like to just make the cell clickable and have a code-behind function that gets the position of the cell (column, row) and the value of the cell when the user clicks it.
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Mar 30, 2010
I have a gridview I create dynamically and one of the columns is a checkbox. I need to set an event handler on this control for checkedchanged. everything appears to work fine except for one thing....even though I can see my WebForm controls they are all null..(even thogh I know they are not) So I basically cant do anythign to the controls in the event handler. Here is teh code I use to create teh dynamic column in the gridview.
EtscUtilsUI.ALMSSECSRV.EALMSAppRoles ealmsapprole =
new EtscUtils.EtscUtilsUI.ALMSSECSRV.EALMSAppRoles();//Thsi
is the webform code behind partial class.
CheckBox chk =
new
CheckBox();
chk.ID = _columnName;
chk.DataBinding += new
EventHandler(chk_DataBinding);
//Attaches the data binding event.
chk.AutoPostBack = true;
chk.CheckedChanged += new
EventHandler(ealmsapprole.Dyn_CheckChanged);
container.Controls.Add(chk);
chk.Enabled = true;
This is the code for the event Handler
internal
void Dyn_CheckChanged(object sender,
EventArgs e)
{
string err =
"";
try
{
if (lblAppID.Text !=
"")
}
that label come back as null event though a previous event set its value successfully if I try to reference the gridview itself I get the error Object reference not set to an instance of an object.
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Mar 31, 2011
<asp:GridView ID="GridView1" runat="server">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox ID="TextBox1" onchange="calculate()" runat="server" Text="0"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
I'm getting this error on the above markup: Message 1 Validation (ASP.Net): Attribute 'onchange' is not a valid attribute of element 'TextBox'.
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Mar 17, 2011
I have a problem with my web site 1stSigBdeAssn.org. I have made no changes to the site but I now get the following error message:
Parser Error Message:
Unrecognized attribute 'targetFramework'. Note that attribute names are case-sensitive.
Source Error:
[code]....
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Feb 1, 2011
I created a simple Master Page in Visual Studio 2008:
<%@
Master
Language="VB"
CodeFile="MasterPage.master.vb"
Inherits="MasterPage" %>
<!DOCTYPE
html
PUBLIC
"-//W3C//DTD XHTML 1.0 Transitional//EN"
and got green underlined 'Master' with two warning messages: 1.Validation (ASP.NET): This attribute name must be followed byan equal (=) sign and a value. If the value is in quotation marks, the quotation marks must match. 2. Validation (ASP.NET): Attribute 'Master' is not a valid attribute of element 'Control'.How I can get rid of the messages?
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Apr 27, 2010
I create dynamic radiobuttons and want to add an eventhandler to them. What I have now doesn't work.
[Code]....
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Aug 30, 2010
How can i use querystring for this-
Here in below code i have used querystring for sending imagename from this page to another page. Now i just want that with this imagename in also want to send span element's text with same querystring.How can i achieve this?
[Code]....
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Feb 24, 2011
I have a eventhandler in code behind of a UserControl.
[Code]....
This one gets called from Page_Init
When i embed it directly into an aspx page it works as intended. But when i add the control to antoher control which is embed into an aspx page. The event suddenly doesn't fire.
aspx->usercontrol->usercontrol.
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Jun 14, 2010
I'm adding a Button to a TableCell dymanically in code-behind and cant get an event handler to work.
Here's some code...
...
TableCell tc = some TableCell....
Button b = new
Button();
b.Text = "Go";
b.Click += new
EventHandler(OnSequenceChanged);
...
protected void OnSequenceChanged(object Sender,
EventArgs Args)
{
}
I set a break at OnSequenceChanged, but it doesnt hit when I click the button. It posts back - Page-Load gets called - but its event handler doesnt get called.
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Oct 14, 2010
On page load I have this:
LinkButton1.Attributes.Add("onclick", "window.open('EditClients.aspx','','height=700,width=600');return false")
I also have an event handler for LinkButton1:
Protected Sub LinkButton1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles LinkButton1.Click
Label8.Visible = True
RefreshButton.Visible = True
End Sub
The problem is the event handler is ignored. Label8 and RefreshButton do not becoem visible when clicking Linkbutton1, but the new window opens fine. How can I make all things happen?
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Nov 11, 2010
I have read and tried Routing and using web forms and this works perfectly, what I am trying to do now is to take it to the next level and use it in my gridview.
I have a hyperlinkfield column
<asp:HyperLinkField DataTextField="mid" HeaderText="Member ID" DataNavigateUrlFields="mid"
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Feb 8, 2011
here i need to get the value of attribute STATUS which is string stored in database...i am able to retreive correct value from database..but i am not able to extract it from gridview.
here is my code
[Code]....
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Feb 24, 2010
A new route to an old problem for me... I'm creating radiobuttonlists and adding them to an update panel dynamically using this code:
[Code]....
I'm wanting to get the selected radio button value whenever a button on the page is pressed, however (and this is my old problem) I cannot retrieve that value. What I'm wanting to try is to add an event that will record the chosen radio button whenever the selected value has changed and store it into an array.
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Feb 28, 2011
write the custom eventhandler for a radiobuttonlist's SelectedIndexChanged, which was creating dynamically during runtime.
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Mar 4, 2011
I want to fie event calender_dayrender forcefully in dropdownlist_selectedindex .Dont know how to give parameters (sender,e).
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Aug 18, 2010
easiest way to raise an event from a LinkButton in a GridView, and then get the ID of the Row from where the button was clicked?
I have a BoundColumn in the same GridView which contains the ID if it.
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Mar 1, 2010
I am trying to add a LinkButton in a GridView that when clicked activates the the AJAX ModalPopupExtender to allow the User to Confirm if they want to Delete a Row.f they click Yes the Delete method should then take place. Unfortunately when I use a LinkButton when Yes is clicked to Confirm the deletion of a Row the LinkButtons click event is not fired.
[Code]....
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Jul 29, 2012
I am using GridView to display a list of forms submitted by a user and in one of the column I have a LinkButton which has got a conditional logic behind it to either display or hide it. The pseudo code for logic basically goes like this:If User has received a comment Show the link to the comment on the GridView. Else Hide LinkThis is the SQL that checks whether the user has got a comment for each submitted form:
Sql = "SELECT * FROM TableStudent INNER JOIN TableComment ON TableStudent .sID= TableComment .sID WHERE TableStudent .sID=@sID"
The SQL is working fine but I am having problem with looping through each form row to check if they have comment or not. Currently, the code hides the first row (correctly) but does not seem to be hiding the link for the following rows that does not have comments. I think my syntax for looping throw each row is incorrect.
For Each row As GridViewRow In gv1.Rows If ds.Tables(0).Rows.Count = 0 Then TryCast(gv1.Rows(0).FindControl("lnkBtnComment").FindControl("lnkBtnComment"), LinkButton).Visible = False Else TryCast(gv1.Rows(0).FindControl("lnkBtnComment").FindControl("lnkBtnComment"), LinkButton).Visible = True End IfNext
I revised the code as it seemed to be affecting only the first column and changed it to this:
For Each gvrow As GridViewRow In gv1.Rows If ds.Tables(0).Rows.Count = 0 Then TryCast(gvrow.FindControl("lnkDisplayComment"), LinkButton).Visible = False Response.Write(ds.Tables(0).Rows.Count) Else TryCast(gvrow.FindControl("lnkDisplayComment"), LinkButton).Visible = True Response.Write(ds.Tables(0).Rows.Count) End IfNext
Now the output for this has been if the associated form has any comment, it shows all the links and if the associated form has no comment, the comment links are hidden. And I have one applicant with two forms submitted; one of them has comment and the other does not. But my repsonse.write is returning 1 for both rows when I should clearly be 0 as it does not have any associated comment.
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