Web Forms :: Button OnCommand Not Firing Inside A Gridview...because Of Session Code?
Apr 23, 2010
I've got a button inside the gridview that isn't firing the onCommand, ONLY when I uncomment some seemingly unrelated code having to do with session in the page load.
Markup:
[Code]....
Code Behind:
[Code]....
Now here is the odd thing. If I comment out the If Not Session block in the page_load....it works and deleteUser will fire upon a button click. If I leave it uncommented as now.....it won't work.
The weird part is when I step through the code in debug, upon clicking the remove button, it still registers that as being clicked and runs page_load, etc again. But won't run deleteUser.
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Similar Messages:
Mar 4, 2010
I have a gridview which is bound to a dataset. I have placed several template fields in the grid with the following type of setup
HTML Code:
<asp:TemplateField>
<HeaderTemplate>
<asp:Label ID="Label1" runat="server" Text="File"></asp:Label>
<asp:ImageButton AlternateText="ASC" ID="imgASC" Width="10" Height="10"
ImageUrl="~/Modules/Interface/ASC.gif"
CommandArgument="eFolder ASC" runat="server" OnCommand="ImageButton_Command" />
<asp:ImageButton AlternateText="DESC" ID="imgDESC" Width="10" Height="10"
ImageUrl="~/Modules/Interface/DESC.gif"
CommandArgument="eFile DESC" runat="server" OnCommand="ImageButton_Command" />
</HeaderTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("eFileName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
on the code page I have mapped the OnCommand event to the following code
Code:
Protected Sub ImageButton_Command(ByVal sender As Object, _
ByVal e As System.Web.UI.WebControls.CommandEventArgs)
Try
Dim img As ImageButton = CType(sender, ImageButton)
img.BorderStyle = BorderStyle.Ridge
SortOrder = e.CommandArgument
BindData()
Catch exc As Exception
ProcessModuleLoadException(Me, exc)
End Try
End Sub
My problem is that by clicking on the image button in the gridview header, the OnCommand event is not being fired. I have tried this with both OnClick and OnCommand and neither fires. I can't see what I am doing wrong if anything.
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Jul 8, 2010
i am using link button inside my gridview .
it is firing in IE but not working in mozilla.
[Code].....
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Apr 9, 2014
On grid RowDataBound based on some condition i've added imagebutton dynamically. parallelly i want to add event for this button click. here is my code snippet.
protected void GV3_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
TableCell cell = new TableCell();
ImageButton bttn = new ImageButton();
[Code]...
That message popup box comes, but i'm unable to catch that click event. while click on a row i want to delete that row, so want to create event dynamically. for that i've used this following dynamic click event
bttn.Click += new ImageClickEventHandler(b_Click);
private void b_Click(object sender, EventArgs e)
{
//delete record
}
but this above code also not working.
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Aug 16, 2010
I have an UpdatePanel with a GridView. This GridView has a template column that is a DropDownList. The problem is that the SelectedIndexChanged event does not fire for the DropDownList. Here is the code:
[Code]....
The codebehind:
[Code]....
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Jan 24, 2010
[Code]....
Button inside the repeater not firing
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Sep 1, 2010
There is nothing fancy with the mark-up:
<hr />
Add... <asp:Button ID="buttonTextSegment" runat="server" Text="Text Segment"
onclick="buttonTextSegment_Click" />
<hr />
Or the code:
protected void buttonTextSegment_Click(object sender, EventArgs e)
{
//never is triggered
}
My guess is that it is due to the hierarchy/load order:
In English: Inside the page's Load, it adds a user control. Inside of that user control, inside of Page_LoadComplete (is this the issue!?), it adds another user control, it is the inner-most user control that contains the mark-up button.
Pseudo Visually: Page -> Page_Load: Dynamically Added User Control -> Page_LoadComplete: Another Dynamically Added User Control -> User Control Mark-Up: Button with event.
Do events need to be hooked before LoadComplete? (Is there a way to make events still work even though the controls are added in LoadComplete?)
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Sep 2, 2010
I'm trying to fire the RowCommand event on a DataGrid control. I've previously done that, but not in this precise case.
Actually I'm working on someone else code so I can't really change the structure of his page excepted if it's really necessary.
The code of the page is heavy, so I've summarized the problem in a small project and the page behaves the same way too.
Basically I have a GridView which I bind to a DataSet. According to those data, I sometimes need to add, at the end of a row, a "Details" button (a LinkButton).
By pushing this button, I want to show a second GridView containing those details.
Let's add to this that the columns number of the first GridView is variable, those LinkButton need to be added dynamically.
The first GridView is generated without any problem and when my mouse is over one of the LinkButton, I can see that the link is something like "javascript:__doPostBack('dataGridView$ctl02$lnkDetail','')". When I click on this link and debug step by step : Page_Init, Page_Load, OnPrerender, RowDataBound but no RowCommand, and I don't know why!
In the exemple, I've explicitly set the EnableViewState to true from what I've read here and there, but nothing's changed.
[code]...
And the code of my .aspx :
[Code]....
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Jan 12, 2010
I have update panel in which i have a label and a textbox and a button
I havwe a Radiobutton list which i am using In the asynchoronous postback trigger of the update panel.
In the Control Id of the trigger I have passed Radiobutton List Id and in the event name I am passing SelectedIndexChanged
But when I click the button no event is firing rest all is working fine.
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Jun 8, 2010
Button click event from inside the accordion pane is not firing. Accordion pane contains tab container inside one of its panes (5th pane) to read data from user and to save that data into database. I have used a button to save data when user click on that button. For this button i have written a click event in code behind.
this is my click event
<asp:Button
ID="Save"
runat="server"
Text="Save"
OnClick="Save_Click"/>
and code behind code
protected
void Save_Click(Object sender,
EventArgs e)
{
//my code
}
for this page AutoEventWireup="true"
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Nov 8, 2010
I've been reading up on the problems with dynamically created controls and how they have been solved. The posts I have come across are creating the controls in a panel or some other open place. I can't seem to get my checkbox to fire the event from inside a gridview. below is the code behind from inside the GridView PreRender event.
[Code]....
..And the Checked Event..
[Code]....
So after all this, nothing happens. I get the postback flash but my command inside the checked event doesn't fire.I tried putting the dynamic creation of the checkbox in Page Load with no effect.. I think because I can't place the checkbox inside the GridView under page load.
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Jan 19, 2010
I have done this successfully in another project and seemingly copied the code from it to a new one, yet it doesn't work.
I have a custom gridView with the following code:
<asp:GridView ID="gvCustomEditors" runat="server" AutoGenerateColumns="False"
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Jul 24, 2010
I have a databound Gridview (with a LINQ datasource). The gridview displays questions from the SQL DB to the user. I've inserted a radio button list into the gridview with 3 horizontal radio buttons with fixed values of 1,2,3 for the user to select. I have a question ID, a tempuserID, and AnswerValue columns set up in the database. It all works nicely.
After the user selects radio buttons, I would like for them to push a button to submit the QuestionID, the associated Radio Button Value (AnswerValue) and their tempUserID into the DB. How do I do this? I'm not sure what to do next and what VB/LINQ code to put in the code behind file in the button click event handler. I'm also not sure on what to use for the tempUserID, can I use the sessionID? I'm using VB and here's my code:
[Code]....
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Feb 23, 2011
I have developed an application using Visual Studio 2008. I have a hirerchical gridview and on every row i have a "Payment" button which actually inserts a payment entry in database. Here is the sample screen of that gridview so u have an idea what i am doing. Problem is that whenever user pressed the button of "PAYMENT" it is inserting multiple records in database..it should only fire once and i am failed to understand why its firing multiple times. Refer this link for my payment screen: [URL]
[Code]....
My code behind--------------------
[Code]....
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May 7, 2015
I have a ImageButton inside a gridview. The gridview is inside update panel. i want to redirect to another page with the Clicking of the ImageButton. But it is not working inside update panel. what should i do?
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Nov 30, 2010
I use asp.net (webforms flavour) for the server coding. Let's say that I stored a variable called "test" inside the Session object.Is there a way to grab its content inside the javascript js file (I use Jquery). Currently, I use the following workaround - in my aspx.cs file I populate a hidden field, then in Jquery I grab the contents of that field.What is the proper way to do that?I tried to expose the session through a web method and using $ajax function to get the value on the Jquery side, but I am getting security error - "permission denied" - no additional explanation offered.My workaround works fine, but to me it seems rather clunky. What are the common ways to achieve session access in Jquery?
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Dec 3, 2010
i hv a gridview in modal popup,I hv taken checkboxes in itemtemplate and written code in javascript function to checked or uncheck the checkboxes.and in pageindexchanged event calling that javascript function to maintain the state of checkboxes.it is working fine.but when i put it inside update panel nothing is happening.
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Sep 2, 2011
The Update button of the gridview is not firing. I checked the database table to make sure that the read/write privileges are set - they are. The primary key is defined, and the DataKeyNames attribute is set.
Code:
<asp:GridView ID="GridViewLabor" runat="server" AutoGenerateColumns="False"
DataSourceID="SqlDS_WtrBrkWOLabor" BackColor="White" BorderColor="#E7E7FF" BorderStyle="Solid"
BorderWidth="1px" CellPadding="3" Width="100%" DataKeyNames="WorkOrderLaborID" Font-Size="8pt"
Font-Strikeout="False" AutoGenerateDeleteButton="True" AutoGenerateEditButton="True"
EnableTheming="True" >
[Code] ....
And the data source:
Code:
<asp:SqlDataSource id="SqlDS_WtrBrkWOLabor" runat="server"
connectionstring="<%$ ConnectionStrings:TheConnectionString %>"
selectcommand="SELECT [WorkOrderLaborID], [WorkOrderID], [WOTechName], [WOLaborHours],
[Code] .....
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Apr 16, 2010
I have the gridview inside another gridview, i want to sort that both gridviews, I don't know how to achieve using asp.net 3.5 visual studio 2008 c# code behind. Following are my aspx page,
<div
id="divclm"
runat="server">
<asp:GridView
ID="claimgrid"
runat="server"
AutoGenerateColumns="False" AllowSorting="True"
Width="100%"
AllowPaging="True"
CssClass="gareahead"
EmptyDataText="No Records To Display"
OnRowDataBound="claimgrid_RowDataBound"
OnRowCreated="claimgrid_RowCreated"
GridLines="Both"
OnPageIndexChanging="claimgrid_PageIndexChanging"
OnSorting="claimgrid_Sorting"
CaptionAlign="Right">
<Columns>
<asp:HyperLinkField
Text="<img id='upimg' src='Styles/Images/appschg.gif'/>"
ItemStyle-Width="10px">
<ItemStyle
Width="10px"
/>
</asp:HyperLinkField>
<asp:BoundField
DataField="name"
HeaderText="Name"
SortExpression="name">
<HeaderStyle
HorizontalAlign="Center"
/>
<ItemStyle
HorizontalAlign="Left"
/>
</asp:BoundField>
<asp:BoundField
DataField="code"
HeaderText="Code"
SortExpression="code">
<HeaderStyle
HorizontalAlign="Center"
/>
<ItemStyle
HorizontalAlign="Left"
/>
</asp:BoundField>
<asp:TemplateField>
<ItemTemplate>
</td></tr>
<tr>
<td
colspan="6"><div
id="<%#Eval("code") %>"
style="display:none;position:relative">
<asp:GridView
ID="Gdclmline1"
runat="server"
AllowPaging="True"
AllowSorting="True"
AutoGenerateColumns="False"
OnSorting="Gdclmline1_Sorting" BorderColor="Green"
BorderStyle="Solid"
BorderWidth="1px"
OnRowDataBound="Gdclmline1_RowDataBound"
OnRowEditing="Gdclmline1_RowEditing" Font-Names="Verdana"
Font-Size="8pt"
Font-Strikeout="False"
OnSelectedIndexChanging="Gdclmline1_SelectedIndexChanging"
OnRowUpdating="Gdclmline1_RowUpdating" PageSize="1000"
RowStyle-Wrap="false"
Width="100%"
CssClass="gareahead"
EmptyDataText="No Records To Display"
GridLines="Both">
<PagerSettings
Mode="NextPreviousFirstLast"
NextPageText="Next"
Position="Top"
PreviousPageText="Prev"
/>
<Columns>
<asp:TemplateField
HeaderText="phone"
SortExpression="phone">
<HeaderStyle
HorizontalAlign="Center"
/>
<ItemStyle
HorizontalAlign="Left"
/>
<ItemTemplate>
<asp:Label
ID="lblphone"
runat="server"
Text='<%#Bind("phone") %>'> </asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField
HeaderText="address1"
SortExpression="address2">
<HeaderStyle
HorizontalAlign="Center"
/>
<ItemStyle
HorizontalAlign="Left"
/>
<ItemTemplate>
<asp:Label
ID="lbladdress1
runat="server"
Text='<%#Bind("address1") %>'> </asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<RowStyle
CssClass="gr"
Height="100px"
HorizontalAlign="Left"
Wrap="true"/>
<SelectedRowStyle
CssClass="gr"
/> <PagerStyle
CssClass="gareahead"
HorizontalAlign="Left"
Wrap="False"
/> <HeaderStyle
CssClass="ghead"
ForeColor="White"
Wrap="true"
/> </asp:GridView>
</div>
</td>
</tr>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<PagerSettings
Mode="NextPreviousFirstLast"
NextPageText="Next"
Position="Top"
PreviousPageText="Prev"
/>
<HeaderStyle
HorizontalAlign="Center"
VerticalAlign="Middle"
CssClass="ghead"
ForeColor="White"
/>
<RowStyle
CssClass="gr"
/>
<SelectedRowStyle
CssClass="gs"
/>
</asp:GridView>
</div>
that aspx page contains gridview that contain one more gridview inside in it.Now i want to sort out both the grid i.e)claimgrid and Gdclmline1 i want code in c#.
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Apr 17, 2014
<asp:DataList ID="datalist1" runat="server" Width="957px">
<ItemTemplate>
<asp:LinkButton ID="linkgallerytitle" runat="server" Text='<%#Eval("EventTitle")%>' OnClick="GalleryTitleClick" ></asp:LinkButton>
</ItemTemplate>
</asp:DataList>
protected void GalleryTitleClick(object sender, EventArgs e) {
Session["gallerytitle"] = linkgallerytitle.Text;
}
I want to get the value of linkbutton from ASPX and assign to a session value in code behind ...
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Jun 28, 2013
I've created an exact copy of this tutorial (vb) [URL] ....
However the delete click is not firing at all - I've removed the click confirmation too but the DeleteCustomers sub just isn't getting called. It compiles & runs fine with the edit/update actions.
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Feb 28, 2010
I have a GridView control bound to an AccessDataSource. After selecting a row I'm creating a table inside the selected row. I'm adding Buttons to this table. Their Click event never gets fired. I read about recreating the buttons and stuff, but still no luck solving the issue.
[code]....
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Nov 24, 2010
I a using Visual Basic, take this into consideration.
I do have the following GriedView:
<asp:GridView
ID="StandardClassifiedsDisplayGridView"
runat="server"
DataSourceID="srcClassifieds"
AutoGenerateColumns="False"
CellPadding="4"
ForeColor="#333333"
AllowPaging="True"
PageSize="100"
DataKeyNames="AutoNumber,UDTIItemDescentFrom">
<Columns>
<asp:TemplateField HeaderText="Picture">
<ItemTemplate>
<asp:ImageButton
ID="ThumbNailImageButton"
runat="server"
Width="75px"
PostBackUrl='<%# string.Concat("~/Classifieds/DetailPage.aspx?AutoNumber=",Convert.ToString(Eval("AutoNumber")),"&FlagForm=NoSubmitted") %>'
ImageUrl='<%# IIF(System.IO.File.Exists(Server.MapPath(string.Format("~/UploadedImagesClassifieds/{0}{1}", Eval("AutoNumber"), "Pic1.jpg"))), string.Format("~/UploadedImagesClassifieds/{0}{1}", Eval("AutoNumber"), "Pic1.jpg"), "~/UploadedImagesClassifieds/NoPicture.gif")
%>'
/>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:BoundField DataField="Category" HeaderText="Category" />
<asp:HyperLinkField HeaderText="Listing Title" DataNavigateUrlFormatString="~/Classifieds/DetailPage.aspx?AutoNumber={0}&FlagForm=NoSubmitted" DataNavigateUrlFields="AutoNumber" DataTextField="ItemTitle"/>
<custom:LongTextField DataField="ListingComment" Width="400px" Height="75px" HeaderText="Listing Comment" HtmlEncode="false" />
<asp:BoundField DataField="EnterDate" HeaderText="Listed on" />
<asp:HyperLinkField HeaderText="See trade history" DataNavigateUrlFormatString='<%# IIF( Eval("UDTIItemDescentFrom").ToString <> "Parent", string.Format("~/Classifieds/SearchPageWithForm.aspx?AutoNumber=", Eval("UDTIItemDescentFrom"),
"&KindOfSearch=ShowMyUDTIGameDownlines"), string.Format("~/Classifieds/SearchPageWithForm.aspx?AutoNumber=", Eval("AutoNumber"), "&KindOfSearch=ShowMyUDTIGameDownlines") ) %>' Text="See trade history"/>
</Columns>
The code inside the PostBackUrl=' and ImageUrl=' are working fine. I tried to do the same, with the code inside the DataNavigateUrlFormatString=' but it is giving me a hard time. It is not working.
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Jan 20, 2011
C#, .NET 4
My webapplication starts a new session at a point, where there is no reason.For the moment I even don't know, which part of code I should post.Clicking a button in the browser on the app, everything is ok for the first time.Clicking it a second time, the new session begins.
What could be the reason for this behavior? Perhaps after an answer I can better determine, what lines of code I need to show you.
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Jan 18, 2011
i have a div inside a gridview. Now I need to access the div from code behind to change its background color
for some specific data.
[Code]....
I am trying to access the DIV from gridview row data bound without any success.
[Code]....
I have the following error
"System.NullReferenceException: Object reference not set to an instance of an object."
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