findcontrol

问题 I have this structure : Page | +---Ascx | +---<div runat="server"> | +---<asp:button> I already know that Findcontrol doesn't work recursively . However when I pressed the button and went to debug and wrote : this.FindControl("btn1") it did find the "button" But this = the ascx There is a div runat server which wraps the button So how did it find it ? According to the definition , it doesn't suppose to work. Msdn : Control.FindControl --> The method does not search throughout a hierarchy of

问题 I have an asp.net page called Default.aspx, and it's master page is Site.master. In the Default.aspx, i added a gridview with 3 databound fields and 1 Templatefield, and then, dragged a TextBox inside this templatefield. I'm trying to get the textbox values for each row in this gridview, using the FindControl method, but it's returning Nothing. Here is the code that i'm using to retrieve these values: For Each gvr As GridViewRow In GridView1.Rows Dim tb As TextBox = DirectCast(gvr.FindControl

问题 I have a repeater and inside it i have a checkbox. Now i want to check it according to columns value(0/1). I have tried it through the itemDataBound event of the repeater. what its doing if the rows has value 1 then its checked all checkbox and if first checkbox is unchecked then its unchecked all. my code is:- ` <td align="center"> <asp:CheckBox ID="chk" runat="server" /> </td> </tr> </ItemTemplate> </asp:Repeater>` The ItemDataBound events code is :- protected void rp_ItemDataBound(object

问题 I implemten ITemplate to dynamically create a Template field TemplateField isReqField = new TemplateField(); isReqField.HeaderText = "Lizenz anfordern"; isReqField.ItemTemplate = new GridViewTemplate(DataControlRowType.DataRow, DataControlRowState.Normal, "isRequested", "bool"); isReqField.EditItemTemplate = new GridViewTemplate(DataControlRowType.DataRow, DataControlRowState.Edit, "isRequested", "bool"); gvLicence.Columns.Add(isReqField); I implement InstantiateIn public void InstantiateIn

问题 How do I use find control to access Label4? Thanks for any help you can provide :) <asp:GridView ID="grdView" runat="server" OnSelectedIndexChanged="viewBLOG" GridLines="None" AllowPaging="true" CssClass="mGrid" PagerStyle-CssClass="pgr" AlternatingRowStyle-CssClass="alt"> <Columns> <asp:ButtonField ButtonType="Button" CommandName="Select" HeaderText="View Sprint Backlog" ShowHeader="True" Text="View" /> <asp:TemplateField HeaderText="Status"> <ItemTemplate> <asp:Label ID="Label4" runat=

问题 I have noticed something that I find weird. Therefore I would like to get an explanation of how it works this way. I have a GridView, like this: <asp:GridView ID="_grdFordelinger" runat="server" CssClass="grid" AutoGenerateColumns="False"> <Columns> <asp:TemplateField> <HeaderTemplate> Vælg </HeaderTemplate> <ItemTemplate> <asp:CheckBox ID="FordelingCheckBox" runat="server" /> </ItemTemplate> <ItemStyle HorizontalAlign="Center" /> </asp:TemplateField> </Columns> </asp:GridView> As you can see

问题 Here the code behind... I'm trying to retrieve this control so I can add items to the drop down list (I'm retrieving the Role Groups to add to the drop down list in the code-behind) Protected Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim DDRoleGroups As DropDownList DDRoleGroups = FormView1.FindControl("DDRoleGroup") End Sub Here's the FormView: (I took out most of the fields so it's easier to read) <asp:FormView ID="FormView1" runat="server

问题 Example code: var div = new HtmlGenericControl("div"); div.Controls.Add(new Literal() { ID = "litSomeLit" }); var lit = (Literal)div.FindControl("litSomeLit"); Assert.IsNotNull(lit); This code fails the assert, because lit is null. Debugging shows that div.Controls definitely contains a literal with ID of "litSomeLit." My questions are "Why?" and "Is there any way to get a control of a specific ID without doing a recursive search of div.Controls[] by hand one element at a time?" The reason I

问题 I have two methods. The first creates one table dynamically, and I add that table into a PlaceHolder. private void generateData(){ Table tbl = new Table(); tbl.ID = "table1"; holder_info.Controls.Add(tbl); // ...adding tr's and td's.... // ...adding CheckBox in tds.... } If I do .FindControl("...") inside this method I can find the control using: CheckBox check = (CheckBox)holder_info.FindControl("checkbox1"); It's OK, but not what I pretend. In the second method, I want to check whether the

问题 Hope you're having a good Friday and stuff... okay, so here's my question: All my ASPX pages inherit from a base class called BasePage. BasePage inherits from: System.Web.UI.Page Now, how do I access/set a control in my aspx page from my page base? I've tried this: HyperLink hypMainMenu = (HyperLink)Page.FindControl("hypMainMenu"); hypMainMenu.NavigateUrl = AppConfiguration.AppSettings.Urls.MainMenu; But hypMainMenu is always null - I can't find the bastard. Any ideas? Or is this bad practice