How could I change (programmatically) a couple of properties in a grdiview template ? For instance, the CalendarExtender6.enabled and the textbox, Duetext.readonly.
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I need to access a control inside a repeater and change its properties. To enable it or not. I got an erorr message Object reference not set to an instance of an object. Here is my code inside a method. protected void
rptCAP_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
LinkButton lnDel = (LinkButton)rptCap.FindControl("lnkDelete");
lnkDel.Enabled = false; //<<<<< this is where the error occur
}
The name of the repeater control is id="rptCAP"
I am using FindControl to get a hyperlink but it only works on the first page. It works fine until I click on another page number in the pager. Then the hyperlink is nothing. This is the hyperlink.
<asp:TemplateField HeaderText="Proj Id">
i have a detailsview with a dropdownlist. i would like to be able to select a value from this dropdownlist and depending on the selectedvalue display a specific control/header in another column.
View 9 RepliesI'm struggling once again to get something centered on a page, and fighting with recalcitrant browsers. I can fix the problem for one browser by adding a style. I can fix it for the other browser by NOT adding the style. I can determine which browser I'm using. If I can change the properties of a div in the code behind, I can create a class and apply it to the div as needed. I added an id to the class:
<div id="alignLV2" runat="server">
but in the code behind, alignLV2 doesn't seem to have a class property. Is there a way to add a class or change the style?
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Once the template is loaded and cast back to the TabHeader class, it's null. How can I load that control, set the properties, and use it as the template? Or is the only way to go about doing this to create a custom class?
I am building a library of asp.net user controls which I am deriving from a custom UserControlBase class which further derives from actual UserControl class. Hierarchy looks like this :
ASCX -> UserControlBase : UserControl
I have this requirement to put a border around all the ASCX's. So, I thought if I can modify UserControlBase it will apply to all ASCXs. I tried following code in Page_Load of UserCOntrolBase but its not working
Code:
this.Attributes.Add("style", "border-color:#FFFF66;border-width:4px;border-style:Dashed;");
What should I do to make it work?
I am building a library of asp.net user controls which I am deriving from a custom UserControlBase class which further derives from actual UserControl class. Hierarchy looks like this :
ASCX -> UserControlBase : UserControl
I have this requirement to put a border around all the ASCX's. So, I thought if I can modify UserControlBase it will apply to all ASCXs. I tried following code in Page_Load of UserCOntrolBase but its not working
this.Attributes.Add("style", "border-color:#FFFF66;border-width:4px;border-style:Dashed;");
Probably a Q more suited for a SQL forum, but I guess it comes up a fair bit in ASP.net web site design?
View 5 Repliesi created a user control that has a template container.
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This is control is placed in a repeater which lists some customers. The customer is than bound to the user control. When the name template is instantiated in the container, the customer object is not yet available, but I need to access its name because it needs to get parsed before.
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Question: How can I access properties set for the user control BEFORE the template container is instantiated?
I have a master page with a user control on it. How do I change the user control's properties from a content page?In my ascx file I created this 2 property:
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In content page PageLoad event I wrote
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I need to change the image in my hyperlink template column (2) for each row, based on a column 3 text value.So if column 3 has a text of 0 the hyperlink image of template column 2 should be noedit16.png for that row else it should be edit16.png.Here is what I have:
<asp:TemplateField>
<ItemStyle Wrap="False" />
<ItemTemplate>
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I have 3 buttons that change the Information being displayed in my Gridview (Previous, Today, Forward). Now management wants to SUM the Date's information by column, I have figured out how to do this by changing the BoundField to a TemplateField and then add a FooterTemplate with a SQL DataSource. When I Press either the Previous or Forward button the data does not change in my Sum'd Footer column.
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If the answer to this question exists somewhere, I'm no good at searching for it. This is sort of a simple question, the response being two parts: (1) is it possible? (2) if so, how?
I've created a web user control for my site's footer. In my web.config I have it registered like this:
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Then, within the pages on my site, I simply insert it like this:
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But obviously, that didn't work. I get this error: The type or namespace name 'FooterControl' could not be found (are you missing a using directive or an assembly reference?)
So I'm really not sure what to do at this point. I can put all of my code in the ASPX file and make my life easier, but I would kind of prefer not to.
my input is
sql="SELECT a.ID, a.TGT, a.PAGEID, a.TESTCASE from qc"
my function call is
gridlabel("ID")
GridText(Tgt)
GridCombox("Testcase" )
my output is Gridview add a label with query data Gridview add a Text with query data Gridview add a DropDown with query data
I know this is really stupid, but I really can't find the answer via Google or the forums. How do I programmatically add a Separator Template to a Repeater or DataList?
View 3 RepliesI'm trying to change a Label's text property and colour properties depending if an event occurs on the page behind file.
Does anyone have a similar issue?
if (((Label)FindControl("Label1")).Text != null) - //getting Object reference not set to an instance of an object.
{
Label Labelmerchantid = (Label)FindControl("Label1");
Labelmerchantid.Visible = true;
Labelmerchantid.ForeColor = System.Drawing.Color.Red;
}
I have a very simple user control in my web site project which has public property declarations as following
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When i drag the ascx file to one of my aspx page and when i go to code behind of aspx page i can access the controls properties through intelisense, but when i run the project through visual studio i get error "The name 'uctTest1' does not exist in the current context?
This is the line where Error shows when i run the project uctTest.StartDate = DateTime.Now;
aspx page markup :
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I am a ASP.Net Web Forms developer and new in MVC. I observed that MVC reccommend not to have code behind file. In Web Forms, we handle events in code behind then change properties of various controls there. How to do the same in MVC? For example, if I have to change back color of a label on click of a button then how to do this in MVC?
View 4 RepliesI'm trying to add an DropDownList to a DetailsView by code, because i'm writing a solution that let's the user select an table and view your records and edit them, some of theese tables, have a foreign key column and the user must have to select some item in the list.
Below is my sample code:
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the code above is working correctly, when the user click in the buttons New or Edit , the DetailsView opens correctly, showing the DropDownlist, but when the user click in the buttons update or insert , an error occurs, the viewState cannot be loaded:
Failed to load viewstate. The control tree which viewstate is being loaded must match the control tree used to save viewstate during the previous request. For example, when controls are added dynamically, the controls added during a post must match the type and position of the controls added during the initial request.
How to add a repeater header item template Dropdown using code behind
View 1 RepliesI have grid view control that includes a dropdown control in a template field.I wish to execute some code when the value is changed in the dropdown list. Can't figure out how to capture this event though?
View 5 RepliesI get an error when attempting to navigate to the page containing this gridview. The error is
'SelectPackage_Click' is not a member of 'ASP.offer_aspx'.
here my page directive:
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Here is my markup. Eventhough SelectPackage_Click is present in the code behind, it is not wired up with the button control.
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I want to make a button in footer template invisible from code behind, but i am unable to do that.
I tried
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how to write grid view template (All option sort,) in code behind
View 1 Replies