Forms Data Controls :: How To Handle Click Event Of Linkbutton In Gridview
Nov 15, 2010how to handle click event of linkbutton in gridview in asp.net
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[code].....
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On certain ASPX pages I would like to handle the click from the page's code behind, opposed to within the user control. How do I override the handle within the control from the parent's code behind page?
Update:
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[code]....
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Nov 26, 2010 In my user control I have gridview, and this grid is created programmatically, using Itemplate. In InstantiateIn methods I have this code.[Code]....
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Dec 21, 2010I am working on an ASP.NET web application using .net 4.0 and VS2010.
I have a GridView and I am appending a row at the bottom to allow users to input data for "Adding" a new record.
The ONLY way I have found for this to work is to do this in the RowDataBound event of the grid. I can check to see if it is about to process the footer row then I know I am at the bottom and can insert this new row.
The row I am inserting contains a couple of TextBoxes and a LinkButton for the "Add" link.
If I just drop a LinkButton on my form and hook up the click event and I click the link button then the first thing that fires is the Page_Load event then my click event. However what is happening when I click the link button that was dynamically added to the GridView is the Page_Load event fires but the click event never does.
I have read 1000 threads saying to try to create the controls in the preinit() or some other event. In my case I can't. Or else someone would have to explain how to add the row to the bottom of the databound GridView.
Here is my code: (I removed creating the Textboxes because that is not part of the problem.
[Code]....
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Nov 26, 2010In my user control I have gridview, and this grid is created programmatically, using Itemplate. In InstantiateIn methods I have this code.
Select Case _templateType
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Dim linkButton As New LinkButton [code]....
I want to wired up Click event to this LinkButton, and use this event in code behind.This is constructor of GridViewTemplate how implements ITemplate
Public Sub New(ByVal type As ListItemType, ByVal colname As String, Optional ByVal infoType As String = "")
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.aspx code
[Code]....
.cs code
[Code]....
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Feb 16, 2011I would like to call a method and pass a value to it on a link button autogenerated from the database in a templatefield inside a datagrid. I don't know much about delegates
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
..
((LinkButton)e.Row.Cells[(int)eMessage.TitleColumn].FindControl("btnMessageTitle")).Click += new EventHandler(delegate { viewSelectedMessage(this, 35); });
}
void viewSelectedMessage(object sender, int messageID)
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running the website and viewing the page source, I have realised that there is an OnClick event created for the linkbutton, however, this may be generated anyways. By running my solution using VS debugging, I can see that my method won't fire by clicking any of thos generated linkbuttons.
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Jan 28, 2011I need to generate a gridview with dynamic columns, on each cell I need a button that inserts-deletes a relationship in a database. The relationship is of course between what is represented by each column and row. I decided to use a gridview and create templatefields which I add programmatically to the table. I successfully got to that point but when i decided to raise a click event from the buttons or a rowcommand from the gridview I could not do it. I´m looking into doing this with button fields right now but I´m curious on how this can be accomplished?
Code:
[Code]....
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Feb 10, 2011I have a gridview where, when the user clicks the row, a modal form is shown and values are passed back to the calling function. This works just fine. However, now I have the requirement that instead of clicking the entire row, they want to just click a link button on the row (not the entire row) and get this same functionality. I am new to JQuery and cannot figure out how to select the link button inside the gridview in order to attach my function to it. Also, once I have that figured out, how do I get values from the Link Button's row to pass to my modal form? Here is my jquery function which works fine for the row-click:
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[Code].....
I would like to add a field like this to my gridview and attach the above functin to it:
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="lnkCallModal" runat="server" CausesValidation="False" CommandName="linkPol"
Text="Modal Search" >
</asp:LinkButton>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" Width="10px" />
</asp:TemplateField>
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Oct 22, 2010i have gridview with linkbutton.when i click linkbutton it should call javascript function which returns value would be input for database functions. how do i capture javascript function retun value(i am using Registerclientscriptblock)? and that should be input for database function. Inshort i need to call two function from link button click - one javascript function,one ado.net function which will update value in database. output of javascript function will be input for database function.
function Getlogitudelantitude(address)
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Linkbutton_click(object sender,Eventargs e)
{
register javascript function .. which should return value
string s = "35.34343,-74.334343"
then call database function(s) - does database operation
}
}
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Aug 25, 2010I have written some code to dynamically generate template columns for gridview which works well. However, each cell in the gridview has to be a linkbutton, which when clicked does a db update and redirects to a specific url with some parameters in it.
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Forms Data Controls :: Adding Multiple Controls To Gridview And Visible On Linkbutton Click?
Mar 27, 2010Im into a situation, where, I need to embed linkbutton to gridview to display one field (TITLE) from database. It was done as I've added it in the itemtemplate. Now my situation is bit refined; I should add a text box and another linkbutton which should be disabled on page load and when ever I click that linkbutton which is displaying (TITLE) should make the textbox and another linkbutton visible by displaying corresponding values from the database in the textbox.
View 5 RepliesWeb Forms :: Linkbutton In Dynamically Loaded User Control Does Not Handle Command Event
Feb 27, 2011I have a user control that is dynamically added to a placeholder control inside an update panel in my main page. The user control has a linkbutton where I try to handle its Command event. The first time the link button is clicked after the user control loads, the form posts back but the command event handler does not execute, although the user control is still on the screen. The second and subsequent times the link button is clicked it works perfectly. When the user control first loads and I mouse over the link button, the browser status bar says: javascript: __doPostBack('ctl08$lbTest',''). After the first click, when I mouseover the link button the browser status bar shows javascript:__doPostBack('ctl07$lbTest',''). Why the changed in id, I can't figure but it must be why it is not hitting the event handler the first time it's clicked. Here is the cs code that loads the user control:
[Code]....
Forms Data Controls :: Gridview Is Not Working When Firing Event From Templatefield Linkbutton
Jan 21, 2010Gridview is not working when firing event from templatefield linkbutton
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Forms Data Controls :: GridView Dynamic Footer LinkButton Event Not Fired On Last Page?
Oct 28, 2010So I have a GridView control with autogenerated column set to true, it also has autogenerated Edit and Delete buttons, sorting and paging, and also I am binding this same gridview to multiple data sources at runtime. All is working well.
Now I am adding a dynamically generated footer row at runtime. This footer row will allow users to add new record regardless which data source it binds to. So it is working as well except there's a small bug I couldn't figure out why. It's when I navigate to the last page of the gridview, if the rows on the last page is less than the page size, for example, I have page size 10 and the rows in last page is 9, then when I click the 'Add' linkbutton, the Add event does not fire, instead, it fill the last page with additional blank rows, that means if the last page has 5 rows, it will fill 5 blank rows below, if it has 9 rows, it will fill 1 blank row below. Then if you click the add again, it will work. If the last page already has 10 rows then, it works just fine.
Below is the code I used to dynamically add footer row:
[Code]....
Data Controls :: Display GridView Row Details In Label On LinkButton Click?
Aug 30, 2013I have to taken Template field value "EmpNo" in Gridview, When I click every employee no then its display in label How. I use RowDataBound event but RowDataBound event not read Template field.
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Jan 25, 2010I have problem with gridview sorting. I am using online example to sort a grid view. see the link [URL] but I always got an error "The gridview fired sorting event without handle" on this statement "helper.ApplyGroupSort();"
<table width="100%">
<tr>
<td colspan=3><asp:Label id="category_name" Runat="server"
ForeColor="#ff0000" Font-Bold=true /></td>
</tr>
<tr>
<td colspan="3" align="center" width="100%">
<asp:GridView ID="dg_drawings"
runat="server" AutoGenerateColumns="False" EnableViewState="False" CellPadding="5" CellSpacing="0" Width="90%"
>
<Columns>
<asp:BoundField DataField="Description"
SortExpression="Description" />
<asp:BoundField DataField="sub_description"
SortExpression="sub_description" />
<asp:BoundField DataField="drawing_id" InsertVisible="False"
ReadOnly="True"
SortExpression="drawing_id" />
<asp:BoundField DataField="DRAWING_DESCRIPTION"
SortExpression="DRAWING_DESCRIPTION" />
<asp:BoundField DataField="DWG_URL" SortExpression="DWG_URL" />
</Columns>
</asp:GridView>
</td>
</tr>
</table>
Here is my C# code
public partial class listDrawings : System.Web.UI.Page
{
admin _admin = new admin();
private GridViewHelper helper;
int categoryid = 0;
protected void Page_Load(object sender, EventArgs e)
{
if (Convert.ToString(Session["logged_in"]) == "1")
{
ph_header.Controls.Add(LoadControl("../controls/builder_header.ascx"));
}
else
{
ph_header.Controls.Add(LoadControl("../controls/header.ascx"));
}
/*if (Convert.ToString(Session["details_hit"]) != "1")
{
_admin.add_page_hit("Standard Details");
Session.Add("details_hit", "1");
}
*/
string categoryidStr = Request.QueryString["categoryid"];
string category = Request.QueryString["category"];
//int categoryid = 0;
if (categoryidStr != null)
{
categoryid = Convert.ToInt32(categoryidStr);
}
category_name.Visible = true;
category_name.Text = category + " Drawing Details";
get_category_drawings(categoryid);
}
protected void get_category_drawings(int categoryid)
{
OracleConnection myConn;
OracleCommand myCmd;
if (categoryid == 3)
{
myConn = new OracleConnection(ConfigurationManager.AppSettings.Get("oracle"));
myCmd = new OracleCommand("DRAWINGS.GET_STAR_SUB_DRAWINGS");
myCmd.CommandType = CommandType.StoredProcedure;
myCmd.Connection = myConn;
myCmd.Parameters.Add(new OracleParameter("iCATEGORY", OracleDbType.Int32, ParameterDirection.Input)).Value = categoryid;
myCmd.Parameters.Add(new OracleParameter("iSUB_CATEGORY", OracleDbType.Int32, ParameterDirection.Input)).Value = 0;
myCmd.Parameters.Add(new OracleParameter("oDRAWINGS", OracleDbType.RefCursor, ParameterDirection.Output));
}
else
{
myConn = new OracleConnection(ConfigurationManager.AppSettings.Get("oracle"));
myCmd = new OracleCommand("DRAWINGS.GET_STAR_DRAWINGS");
myCmd.CommandType = CommandType.StoredProcedure;
myCmd.Connection = myConn;
myCmd.Parameters.Add(new OracleParameter("iCATEGORY", OracleDbType.Int32, ParameterDirection.Input)).Value = categoryid;
myCmd.Parameters.Add(new OracleParameter("oDRAWINGS", OracleDbType.RefCursor, ParameterDirection.Output));
}
try
{
myConn.Open();
this.dg_drawings.DataSource = myCmd.ExecuteReader();
dg_drawings.DataBind();
helper = new GridViewHelper(this.dg_drawings);
string[] cols = new string[2];
cols[0] = "Description";
cols[1] = "sub_description";
helper.RegisterGroup(cols, true, true);
helper.ApplyGroupSort();
}
catch (OracleException ex)
{
if (categoryid == 3)
{
_admin.send_email("resources/listDrawings.aspx", "DRAWINGS.GET_STAR_SUB_DRAWINGS", ex.Message);
}
else
_admin.send_email("resources/listDrawings.aspx", "DRAWINGS.GET_STAR_DRAWINGS", ex.Message);
Response.Redirect("~/error.aspx");
}
finally
{
myCmd.Dispose();
myConn.Close();
myConn.Dispose();
}
}
}
Data Controls :: GridView Data Gets Cleared On LinkButton Click?
Oct 22, 2013I have one gridview and bind the data from database and add extra link button in gridview column,when I click on link button then open new page but grid is cleared automaticaly,I don't want to clear grid
View 1 Replies