Asp.net - Gridview Button With Databound Drop Down Fails?
Aug 22, 2011
I have a gridview with a button, and when the button is clicked, it fires a rowcommand procedure and adds a new row to the database. Everything works fine until I add a databound drop down list to the gridview.
With a databound dropdown list, the page loads fine, but when I click the button the error shows as "Internet Explorer cannot display the webpage". here is my code
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" OnRowCommand="GridView1_RowCommand"
DataSourceID="SqlDataSource1">
[Code].....
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Feb 24, 2010
I have an application working great that has a data-bound combo box.My question is When the user types in box the results are not shown unles I manually click the drop down arrow.
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Mar 19, 2010
I have an MDI application that shows MDI forms with a single DataGridView on each form. The grid is bound to a List(Of Item), where Item is some class. Now I need to be able to drag (possibly multiple) items from one grid (in one form) to another grid (in another form).
Unfortunately, I know nothing about DataGridViews and even less about drag and drop, so this is turning into a real pain for me...I have been looking at examples for ages, but none of them work for me. Most of them don't deal with databound items, others don't seem to work at all, and yet others can only deal with a single row at a time (pretty useless for me).
This must be something that people need a lot, so I can't understand why the examples are so 'bad'.
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Oct 18, 2010
I am attempting to use a GridView in asp using VB and I get an error message about content.I did some research and reformatted the XML document the datasource is referencing but still cant seem to get the GridView to generate.Error Message: "The data source for GridView with id 'GridView1' did not have any properties or attributes from which to generate columns.Ensure that your data source has content." [code]
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Jan 30, 2012
I have a DataTable that is bound to my GridView via a method a created. The function returns a new DataTable each time, so I don't have direct access to the data that is in the DataTable.
I'm trying to update my database with the data from the DGV, but anytime I try accessing the columns or rows, I get an error saying the column/row index isn't correct.
I'm using the RowValidatedEvent and if use the following code in a dummy project while manually adding the columns, the result is predictable.
VB.NET
MessageBox.Show(dgv.Item(e.ColumnIndex, e.RowIndex).Value.ToString)
But when I do the same with my bound DGV, I get the exception mentioned above. This leads me to believe that I need to access the DataTable directly, but I can't because I get it from a method.
So is there a way to access the grid view's bound data? I've been playing around with various properties, but have come up short so far.
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Jul 19, 2011
I've got an asp:DataGrid which has an asp:Gridview within it and this has many nested asp:Repeater's within that and i'm trying to reference the nested repeater from within my OnItemDataBound function [code]This code may not be the simplest way of doing this but i've taken over someone else's work and need a quick fix before re-coding it all
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Feb 21, 2012
How to use a databound combo box to display one field in the drop down, and another as the combo box text on roll up? Using VS 2005... For example, I have a datatable that has 2 fields. One called "ShortDesc" and one called "LongDesc". I want to be able to see the "LongDesc" column values in the drop down on the combo box. When I make a selection, I want the text in the combo box to read the corresponding "ShortDesc" value.
[Code]...
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Apr 16, 2010
I have a series of GridViews in a Tab Panel - databound to a generic List of Business Objects.
The columns in the Gridview are all similar to the following:
<asp:TemplateField HeaderText="Company" SortExpression="Company.ShortName">
<ItemTemplate>
<asp:Label ID="lblCompany" runat="server" Text='<%# Bind("Company.ShortName")
[Code].....
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Jul 6, 2009
I am working on visual studio 2008 , when i drag and drop a GridView control, I cant see any way of showing the page index by run time. How do I associate one DataSet object (which has got 10 rows) first 5 rows I need to show in first page rest i need to show in next page, basically I need to divide my dataset information in to two seperate page indexes.
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May 25, 2009
I have a modal popup that contains a gridview. On the click of a button inside of a grid i reload the gridview with the data that depends on the id of the row clicked in the gridview. I would have like to reload the gridview onclientclick but I couldn't find a way to do that. Is it possible to reload a gridview client-side without the user even knowing the page partially loaded?
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Apr 13, 2009
The problem I have is that many times, the dataset that this control is bound to is empty. Therefore, the user continuously gets an error saying that one or more fields is missing. When I debug the code, I can see the code in the class loop through all of the radio button controls on the form. Since none of them match the field from the database, the code throws the error. I assume the code expects a match.
Should I modify the class to handle the case when there is a DBNull value? If so, what would be the best method? Or should I approach this situation in a completely different manner?
Public Class myGroupBox
Inherits GroupBox
Private _myTag As String
[Code]....
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Jul 29, 2010
i have a treeview filled with directory structure, now want to drag some file name from treeview and drop it to GridView.
i tried with the Item_Drag event it works for drag only...but GridView's DropOver event doesn't work what can do ?
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Dec 4, 2009
So in this gridview, there is a column for status and I want to have a drop down list with Pass, Pending, Fail appear when the edit button is clicked. These values are already in a table, so I need to somehow bind from this table to each ddl for every row.Here is the column from the gridview. As you can see, I would like to just have a label showing when not in edit mode, and a ddl when the edit button is pressed
<asp:TemplateField HeaderText="During Production Status" SortExpression="DuringProductionStatus">
<EditItemTemplate>
[code]......
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Aug 11, 2010
Is it possible to create a button with a drop down, or a combobox that has the dropdown arrow along the bottom as opposed to the right hand side? I am trying to emulate the "Paste" button in the Word 2010 ribbon.
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Aug 24, 2009
I am building an Excel spreadsheet that will contain command buttons that can invoke various functions written in visual basic. I want to be able to drag and drop a command button over any spreadsheet cell and the cell be automatically populated with the result of the function invoked when the command button is dropped. How do I invoke the command button drag-and-drop functionality.
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Jun 17, 2011
I am working on button component, and I would like to get up and down arrow keys on the button, and on the click event of these arrow keys to display the images, proposed functionality in the form can be done further. I want to display an image with the text and the arrow keys to display the images when I click on the button like this:
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Jul 21, 2009
This is in regards to the toolstrip spiltbutton control.
When I click the arrow on the right, not only does the drop down menu show, but the code in the button's click event executes also. How do I make the drop down arrow separate from the button itself?
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Jan 16, 2009
I created one ToolStripDropDownButton in vb.net. I will like to put methods for every drop down items and as well as the Button Menu.... how it possible
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Sep 5, 2009
I have already done the creation of button and the dragging of button at runtime already. But now i need to know how do i save the last dragged button on the form and also detect the name of the last clicked button. so lets say i now drag a button to coordinates 25,254. so when i exit the form and the next time i launch it, the button will still be at 25,254. and this one will go on for the number of button i created like 100. so when i launch the form the 100 button will be at the exact position where i last saved them.
the second part is lets say i created button1 and button2 on the form in runtime. so when i clicked the first button, it should display button1. and if i clicked on button 2, it should say button2. same goes for like 100buttons.
Public Class Form1
Dim tm As New Timer
Dim Index As Integer = 0
Dim myMousedown As String
[code]....
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Mar 3, 2010
Is there any way to do it with a standard toolstrip or I should write my own usercontrol for that?Basically, I need a drop-down button with another toolstip as a dropdown.
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Mar 10, 2010
I am currently working on a dorm designer as a college project. I would like the user to be able to set thte dimesions of the room and then allow them to make objects(buttons) and drag them arround/ place them as if they were designing a room. So my question is:Is it possiable to make a button drag and droppable?
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Mar 1, 2009
I am using the DateTimePicker in VB 2008 express. I am making a program for a person who is visually impaired and needs to see BIG WIDE buttons. The drop down button is very slim and I need to know what to do to modify the size of the drop down button itself in the properties. I tried googling this and have run into dead ends.
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Mar 3, 2011
I have a button that if a user clicks on the button it creates a new button without the user knowing, and they can drag it to a split container, drop it and edit the button. I am having an issue where I cannot drag or drop the button onto the split container.[code]...
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Sep 5, 2009
I insert a text box into form1. I move the mouse pointer on top of the text box. I press down on the left mouse button and begin to drag the text box. The problem is when I let go of the mouse button the text box is not dropped. it remain floating around. My only way out of this is to press the escape key which places the text bnox bak to its original location. Thinking that it might be my mouse I tested it in Power point and everything works correctly.
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May 17, 2007
I have 2 drop down lists and 1 submit button. It works such that after the user has selected values from BOTH the drop down lists, then the user will click a "Search" button. My problem is, after the user click the "Search" button, the second drop down list is no longer displayed with the selected value, instead it displayed a default value. May I know how can I make sure the selected value remain selected even after the user clicks the "Search" button on the page?
For your info, my coding goes as
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim strSelectedUsername As String
[Code]....
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May 17, 2012
I'm working on a Visual Basic application in Visual Studio 2010. The application was originally created in VB6, which had a dedicated menu button editor. Now I need to add new drop-down items to my button menus, but VS10 seems to have no facility for this. All attempts so far appear to lead me to tool strip support, which I do not want.
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Feb 9, 2012
I looked at "How do I place an image with a mouse-click in Javascript?" but it had a small snippet of Java; immensely larger than my knowledge of Java. And that is the closest I've come to finding an answer in the past week. Here's what I would like to do (don't know if its even possible):
I have a panel and a toolstrip with 3 buttons. Each button represents a different image. I want to click on a button (once) and then move into the panel and everytime I click the mouse button it drops the image where ever I clicked. This only ends when either I click back on the same button or one of the other buttons. I do not want to drag an image into the panel each time. In other words the button stays depressed and the event/action stays active.
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May 8, 2009
I have a gridview and in that gridview I created a list of imagebuttons programmatically with an addhandler as follows:
Dim deletecshr As New ImageButton
deletecshr.ImageUrl = "imagesttnDeletemini.gif"
deletecshr.ToolTip = "This Will Delete All Cashiers"
AddHandler deletecshr.Click, AddressOf deletecshr_Click
[Code] .....
My issue is getting the value of the row of the clicked imagebutton in the click handler. How do I get that?
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Jul 16, 2009
See the below
Imports System.Data
Imports System.Data.OleDb
Public Class Form1
[Code]....
the last value inserted into the access database will be add to the drop down list of their corressponding combo box.
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Sep 7, 2009
I'm using gridview with templates to show and edit some information from a sql database.
When I edit and change the data in that row and then click enter it automatically presses the highest on page button which uses submit to server set to true which means it'll try to delete instead of update.
I've have tried setting a panel round the gridview and setting the panel's default button to the "updatebutton" but it won't allow that because it can't 'see' the buttons.
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