I got a problem about finding controls in Edit/Insert Itemtemplate inside a DetailsView.Here is the code.I put a Label (id= "Label6") to test whether the findcontrol method works or not. Unfortunately, I almost tried every means but still coudn't find it.
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I have something like this:
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This does NOT work. What's wrong here?How do I accomplish my goal? I MUST use the Button1_Click event for this one.
I'm trying to do a relatively simple thing, but just cannot get it to work. I'm trying to find a dropdownlist within a ListView ItemTemplate within Page_Load.
This is the code
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And this is the C#
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I have also tried without this > this.ListView1
In this case I'm having, the ItemTemplate for various fields in my DetailsView (2 in my case) does not show up, but when you click the edit button, the EditItemTemplate shows up. I played with it, moving it around. No matter where I put it, one of the fields did not show up.
To get even stranger (and don't ask me how I came up with this), if I put a dummy boundfield BEFORE it, the ItemTemplate shows up. But this is totally absurd.
Here's the html:
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I have a Calculate Button in an ItemTemplate Field in a detailsview.
When I am editing or inserting records, I would like this button to hidden obviously.
I tried the following [Code]....
Did not work
I also tried creating a click event out of the Edit linkbutton
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Didnt work either...
In my detailsview, I have an emptydatatemplate set up to allow users to enter new records. The code works. However, once the record is inserted, the detailsview defaults to a standard insert screen. I know this will cause confusion for the users. I would prefer the detailsview to either show in edit mode or a read-only mode. I have used detailsview.changemode and detailsview.currentmode in the custom sub created for the add new button of the emptydatatemplate- neither of which do what I was hoping. It would be even better if when there was no data, it defaulted to the insert screen (which seems like that should be an easy, no-brainer way for .net to function) but it doesn't. Or, I don't know how to accomplish it.
I don't want to force the user to click cancel after inserting an item through the emptydatatemplate just to be able to use the detailsview for other records.
My GridView uses auto generate Edit & Delete command button. And then program the insert button. I want to do something when users click the Edit button so I wrote something like this:
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When click the Insert button in the Footer, the program works fine. But when trying to click the auto generate Edit button, the following statement failed with the exception stated in the code above:
first_name = gvAgent.SelectedRow.FindControl("txtEditFName")
I have made a DetailsView which in DetailsView there is action to add the data, change data and delete the data ..how to save, change, delete data, which is in the DetailsView without saving it in the database?so far I use viewstate, but I do not know how to apply it in DetailsView ..
how to create insert , update , delete . in detailsview without saving in database ..
private void Bindemptydt() {
//Declare a datatable for the gridview
DataTable dt = new DataTable();
//Add Columns to the datatable
dt.Columns.Add("report_id");
dt.Columns.Add("param_field");
dt.Columns.Add("param_label");
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I have a problem with DetailsView linked with Database, DetailsView is Insert/Edit enabled, and adding/ediditng data works, however........ when I add a new record (DetailsView in Insert mode) and press INSET instead going to record I have just created in Read-Only Mode it shows me blank form, it looks that the "linking" field is null.
View 3 RepliesI have a DetailsView with several fields. On the same page, I have both LinkButton that enables to go in edit or insert mode for the DetailsView.
When I click on a button, linked code-behind is doing the following :
switch (buttonCmd.ID)
{
case "cmdEdit":
DetailsView1.ChangeMode(DetailsViewMode.Edit);
break;
case "cmdInsert":
DetailsView1.ChangeMode(DetailsViewMode.Insert);
break;
This kind is working fine in another page from the site website but not on this one... Probably a bad copy-paste
For ASP.NET, I'm using a DetailsView for insert and edit of a record. For edit mode I don't want to display the primary key field because it should not be changed. For insert mode, I want to display the primary key field because it doesn't exist and the user can specify it via a DropDownList that insures they will pick an unique value. A TemplateField is used in the DetailsView markup for the primary key field (hence the DropDownList for insert mode).
My problem is that I cannot get the primary key field to not display for edit mode and to display for insert mode. In the markup I have:
<asp:TemplateField HeaderText="name" InsertVisible="True" Visible="True">
<InsertItemTemplate>
<asp:DropDownList ID="ddl2NonMembers" runat="server"
Width="155px"
Sourceless="sqlNonMembers"
DataTextField="name"
DataValueField="id_adm"
SelectedValue='<%# Bind("member_grp") %>'>
</asp:DropDownList>
</InsertItemTemplate>
</asp:TemplateField>
With the TemplateField Visible="True", the HeaderText="name" always displays which I don't want for edit mode. With the TemplateField Visible="False", the field never displays which I don't want for insert mode.How can I achieve the display behavior I want for insert verses edit mode. I'm fine with changing some property programmatically rather than relying an a pure markup approach,
I have a detailsview control linked to a SQL DB. I have created a template field with various controls within. When I click on edit and change the values and press update. The detailsview control changes back to read only and displays the original values. I have attached the code for the control and datasource below.
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SQL DATA Source
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Detailsview edit not saving
View 3 RepliesI want to add controls (or simply texts) to a ListView inside the ItemTemplate at run time.
The reason is that in my application I don't know in advance how many controls (or texts) I should insert.
For example I have to read the fields from a database table and insert in the ItemTemplate controls according to those fields:
<ItemTemplate>
<%# Eval("fieldname1")%> - <%# Eval("fieldname2")%> - <%# Eval("fieldname3")%> - .....
Afterwards I have to bind the ListView to the table content, so I need to preserve the <%# ... %> structure for the binding
I read your article on ASPSnippets and everything worked great. I am having one problem and this is preventing me from moving forward. When I select the edit for a row (I only have two columns), the drop down comes back blank (no records). I have looked at the code multiple times and can't see where I made a mistake. is it possible to control the width of the drop down list? I can't tell if the column automatically adjusts because I am not returning any records.
using System;
using System.Collections.Generic;
using System.Linq;
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i have a webform to take user inputs. i am able to insert the data into database on clicking add button and also able to view the
records in the detailsview which is in the next webform.I have a edit and delete button in detailsview.
Now when i click edit button, i want the selected record from the detailsview to be populated in the first webform where i can update the record. also deleting record using delete button.i am using c# code,datatable and oracle stored procedure here.
I have created two dropdown lists. The 2nd DDL depends for values on the 1st DDL. I have written code on the SelectedIndexChanged event of 1st DDL to change values of 2nd DDL. also i have used detailsview. In the template field i have used 2 DDL mentioned above. they are having SelectedValue='<%# Bind("") %>' property. Everything works fine but when i tried to edit record in detailsview & select value from 1st DDL then it gives me following error.
Server Error in '/' Application. Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidOperationException: Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.
I have a table that has previous data in it.
I have written a new site around this data
On occation a user will attempt to edit a record in a detailsview and they get this error:
System.ArgumentOutOfRangeException ddlState has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value
This happens to be a list of states.
Is there way to allow the edit so the user can select a valid state from the list?
i have a gridview and a detailsview on my page.in gridview i have a EDIT Linkbutton - onclick i am displaying a Panel (with ModalExtender) within DetailsView (DefaultMode = readOnly).How can i change the mode of detailsview to EDIT (in code behind) when displaying in Modal.
I also have a Button NEW where i want to display the Detailsview (modal ) in Insert Mode.
How to edit detailsview and gridview programitically?
I am binding data from the database to the detailsview/gridview dynamically with edit link .
Now when i click edit link i want to grab the selected row id and pass it as querystring or something like that to another page.
I am using c#,sql server and dataadapter to acomplish this.
I am trying to handle the detailsview programmatically but I don't know what I am doing wrong. My details view control isn't going into edit mode. My code for my gridview's select button properly loads the data into the detailsview but once the detailsview renders clicking on "Edit" doesn't switch the detailsview contol into edit mode.
This code draws the information from my database and loads the information into the dataview:
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This code is in my dvTeamDetails_ItemCommand sub and the beep works:
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This code handles my mode changing event:
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Here is some of the HTML code:
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I have a DetailsView control with DefaultMode = ReadOnly in my page. When the page loads, it shows the edit link. I would like to programmatically hide the edit link when the user is an administrator on page load. By default, I have set ShowEditButton="True". How do i reference the edit link when it is automatically genereated from the CommandField.
Here is my code:
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i have a detailsview and if the tick box field "controlled" = true then I want the edit button to be hidden.
View 34 RepliesI have a SQL DB with just 2 fields, ID and TEXT.What i was trying to do, was placing a Detailsview in EDIT MODE, then selecting from the DB like SELEC TOP 1 Text FROM DB.Then i placed a Ajax HTML Editor in the template field.How can i, keep the HTML Editor on the page, and use it for INSERT and/OR EDITING ?e.g.: on the first time the user opens the site management page, it will be blank, so it will show the HTML with no text on it. but the bottom button will be UPDATE and CANCEL. So when he enters the TEXT he clicks on UPDATE.
View 2 RepliesI am trying to update a textbox with the current days date when a checkbox field is checked during Edit of detailsview
The current script I have is which gives me a : Object reference not set to an instance of an object on line 3
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