Web Forms :: Find ButtonColumn Control?
Feb 9, 2010How do I use FindControl(string id) to find ButtonColumn in code behind
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How do I use FindControl(string id) to find ButtonColumn in code behind
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I have this strange problem with IE7I have my form with 2 DataGrid controls in an update panel. the first column in both grids are "buttonColumns".the seccond grid appears after i select a row in first grid...so far everything is ok. If i select a row from seccond grid by hitting the firs collumn cell, my page resets all page setting...including page.isPostback property(page.isPostback becomes false) so all my data are initialized from page_load function. All these are happening only in IE7. Can anybody tell why this happens?
View 1 RepliesI am building a query tool which displays the results in a dataGrid. when the results are displayed (buttonColumn) it should allow the user to click a row and execute another function. the columns selected in my query are not always the same name but it is user defined, therefore i am not able to define the columns in the ASP page, but insted am doing it in the C# class behind. When the table is generated it does have the button columns but when clicked it does a postback and it does not execute the function defined in the OnItemCommand tag.
DataGrid Code in aspx page:
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I'm working on a bug in our application and I cannot figure out why this problem even exists. We have a custom DataGrid control that inherits from the standard asp.net DataGrid. In the grid, we have a ButtonColumn as the second to last column. The code for that column is:
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The problem is that the "alt" text does not show up at all. There are 2 other images in this DataGrid, and the alt text shows up just fine in those.
in the gridview,have an AutoGenerateEditButton,when user click on edit buttoncolumn A will show out dropdownlist (Y/N) to select then it able to update to the database.can i do like when user selected "Y" in the dropdownlist column B can automatically update also. based on the selected value.Y - agree,N- disagree user selected Y in column A column B automatically input text "agree"i dont know how to google about this issue.
View 25 RepliesI want to change the text of the user name text box which is inside a log in view on selected index chaged event of a drop down list.
this is my code:
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but both ddl and tb are null
Anyone knows how can I find the controls in code behind?
I'm trying to find a TextBox in the code-behind page, it's inside a nested master page and also then inside another control container (it's inside ctrlCheckoutShippingAddress also) .
I've tried this:
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how to find Textbox Control inside DetailsView Control Using Javascript, I tried below but gives an error OBject reference not found
document.getElementById('<%=DetailsView1.FindControl("TextBox1").ClientID%>');
<asp:Content ID="Content3" runat="server" contentplaceholderid="ContentPlaceHolder3">
<asp:LoginView ID="LoginView1" runat="server">
<AnonymousTemplate>
<asp:Login ID="Login1" runat="server" BackColor="#FFFBD6" BorderColor="#FFDFAD"
BorderPadding="4" BorderStyle="Solid" BorderWidth="1px" Font-Names="Verdana"
Font-Size="0.8em" ForeColor="#333333" onauthenticate="Login1_Authenticate1"
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i have used an login control for the users who have not logged in and defined login verification method on the click event of the button but while excuting i do get an error
Error 1 The name 'Login1' does not exist in the current context
i have a gridview control i added checkbox contrl dynamically but i am not getiing the reference of checkbox in button clilck event here is my code Gridvew
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.vb code
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I have on dropdown that show hide user control. In the user control i have Ok and Cancel button.
When the dropdown change i want to apply ValidationGroup on the Ok button that is inside UserControl.
I am developing a asp database that is linked with SQL Database. When I am tryind to Find Control (GridView2) inside of another control (Panel2) that sits in Item Template for DetailsView, I got an error message:
Object reference not set to an instance of an object.
<asp:DetailsView ID="DetailsView1" HeaderText="Details" HeaderStyle-CssClass="labelheadRight" runat="server" AutoGenerateRows="False" DataKeyNames="pk_BackupDriveSerial"
DataSourceID="SqlDataSource1" GridLines="None"
CssClass="Detailsview" AllowPaging="True"
OnDataBinding="DetailsView1_OnDataBind"
OnItemInserted="DetailsView1_OnInsert"
OnItemDeleted="DetailsView1_OnDelete"
>
<Fields>
<asp:BoundField DataField="pk_BackupDriveSerial" ControlStyle-CssClass="dropdownsize"
HeaderText="Serial No" ReadOnly="True"
SortExpression="pk_BackupDriveSerial" >
<ControlStyle CssClass="dropdownsize"></ControlStyle>
</asp:BoundField>
<asp:BoundField DataField="BackupDriveMake" HeaderText="Make" ControlStyle-CssClass="dropdownsize"
SortExpression="BackupDriveMake" >
<ControlStyle CssClass="dropdownsize"></ControlStyle>
</asp:BoundField>
<asp:BoundField DataField="BackupDriveModel" HeaderText="Model" ControlStyle-CssClass="dropdownsize"
SortExpression="BackupDriveModel" >
<ControlStyle CssClass="dropdownsize"></ControlStyle>
</asp:BoundField>
<asp:TemplateField HeaderText="Type" SortExpression="fkid_BackupDriveTypes" ControlStyle-CssClass="dropdownsize"
Visible="False">
<EditItemTemplate>
<asp:Label ID="Label6" runat="server" Text='<%# Bind("BackupDriveMake") %>' Width="145px"></asp:Label>
<br />
<asp:TextBox CssClass="dropdownsize" AutoPostBack="true" ID="DropDownList5" runat="server" Text='<%# Bind("BackupDriveModel") %>' ></asp:TextBox>
<br />
<asp:Panel ID="Panel2" runat="server" CssClass="dropdownpanel" >
<asp:GridView CssClass="dropdowngrid" ID="GridView2" runat="server" AutoGenerateColumns="False"
CellPadding="4" DataKeyNames="pkid_BackupDriveTypes" SelectedValue='<%# Bind("fkid_BackupDriveTypes") %>'
DataSourceID="SqlDataSource3" ForeColor="#333333" GridLines="None" OnSelectedIndexChanged="GridView2_OnChange">
<RowStyle BackColor="#EFF3FB" />
<Columns>
<asp:BoundField DataField="pkid_BackupDriveTypes"
HeaderText="pkid_BackupDriveTypes" InsertVisible="False" ReadOnly="True"
SortExpression="pkid_BackupDriveTypes" Visible="False" />
<asp:BoundField DataField="BackupDriveMake" HeaderText="Make"
SortExpression="Make" />
<asp:BoundField DataField="BackupDriveModel" HeaderText="Model"
SortExpression="Model" />
<asp:CommandField ShowSelectButton="True" />
</Columns>
<FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
<HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<EditRowStyle BackColor="#2461BF" />
<AlternatingRowStyle BackColor="White" />
</asp:GridView>
</asp:Panel>
<asp:DropDownExtender ID="DropDownExtender2" runat="server" DropDownControlID="Panel2" TargetControlID="DropDownList5">
</asp:DropDownExtender>
</EditItemTemplate>
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I also tried
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i have problem in using ajax control , till morning it everything was file , now when i add any new ajax control it shows the error Control canot be created because visual studio cannot find the control's type in the control assembly then if i press OK it says The operation could not be completed . invalid FORMATETC structure
View 5 Repliesi have AccordianPane containing several Panes
each pane containing a table with multiple Textbxoes,lables
at runtime i want to find controls by its id's
for this i tried using
Control ctrl = this.FindControl(id);
but its not working as all the control id's are getting modified with "ctrl" prefix textbox with id "txtName2" modified to "ctrl9_txtName2"
how can i get the exact control by the id's like
I need some control to view "rich text format" text (i mean .rtf file).
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In my code, I wanted to do a search on the form controls, such as check box and radio button. These controls are created during run time.
I got problem finding the Control ID in my ASP.NET page.
When I try to refer that ID, it always give me:
I am trying to refer this:
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I pass this id from here:
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This is my code behind which is driving me crazy :(
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When I use label to display the STRING INTIME, IT GIVES ME "textboxCashier1In"
BUT WHEN I DO THIS:
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I have a web page "Survey.aspx"
This page is in a MasterPage.
In survey.aspx, I put a PlaceHolder.
In this place holder, I dynamically add a usercontrol (for each question in a survey). That usercontrol for now is just a simple Panel with a radiobutton. For the test, I have 2 questions, so the usercontrol will be inserted 2 times in my PlaceHolder.
On a submit button added in my Survey page, I try to retrieve the value of both the radio, but I just cant find the control.
I made a recursive function to loop through all the controls, I find the "PlaceHolder1" controls, but it has no child controls. Where are the 2 panels for each questions .. both containing 1 radio.
I see them on screen, but just can't find them in my coding.
This is my Survey.aspx layout code
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This is my usercontrol layout code
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I am having couple of check box in my web page.How to I find them using VB SCRIPT?I want to know which of them is selected?
View 4 RepliesIm having a master page which consists an user control further which consists a Label.i want to change the text of that label in content page.
View 7 RepliesI have a FreeTextBox control on a page that has a masterpage. This FreeTextBox control is in the maincontent.
View 5 RepliesI want to make a webpage where i used a Linkbutton link for share something into an ascx page. i have called this ascx control into some webPage(aspx).
But into that ascx page i have called another ascx control to open that page as a pop into ascx page It will be displayed into aspx.
1. first ascx control display some folder to share .
2. second ascx called into first ascx to popup the friendlist(I have used ajax DragPanelExtender inside it a Datalist with check box.) for it
3. I have to show this all to share with all friends (in aspx page) likie face book share
I want to do this how can i hide and display the second ascx control into first ascx control .
By default registered control is hide. when i click to link button share it got visible but there is one button cancel on the second ascx how to hide this into first control into that hide button click.?
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I have a method that needs to find the repeater control to add data. I try the code below, but keep getting an error "not set to an instance of an object."
hyp = (HyperLink)Repeater1.FindControl("orderID");
hyp.ID = docName;
I am creating dynamic controls... i.e. ddl
DropDownList ddl = new DropDownList();
ddl.DataSource = data;
ddl.ID = id;
ddl.DataValueField = "Key";
ddl.DataTextField = "Value";
ddl.DataBind();
PlaceHolder1.Controls.Add(ddl);
Loading the controls to the placeholder.
Selecting a value and clicking the button, doing postback, I want to capture the value selected in the ddl. I was using "FindControl method" but it is not working, I guess because the controls are created dynamically and will not show due to stateless HTTP.
How else can I capture the values? Is there away?
I'm currently experiencing issues when I try to update the text value of a label. The label is located within a HeaderTemplate. The HeaderTemplate is within a Wizard control. why I'm uable to access it directly or with using findcontrol?
I believe that Findcontrol returns back a null when I go that route. Here's a code snippet below of what I'm working with. I'm trying to update lblCurrentJob with text that changes based on what the user selects on my page.
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