Forms Data Controls :: GridView Edit Mode Not Working?
Feb 9, 2011
For the life of me I can't figure out why I can't put my gridview in edit mode. I am using an ObjectDataSource, maybe that has something to do with it. The problem is that the gridview won't go into edit mode when the edit is pushed. Here is some of my code:
I will troubleshoot my Match class methods after I get the gridview edit mode working.
The item "Active" is a bit from the database And for the RowDataBound:
Const HeavyCheckMark As Char = ChrW(&H2714) For Each row As GridViewRow In gvProductCodes.Rows If gvProductCodes.EditIndex = -1 Then ' Selects the text from the Label which is inside the GridView control Dim lblActive As String = CType(row.FindControl("lblActive"), Label).Text lblActive = lblActive.Replace("True", HeavyCheckMark) lblActive = lblActive.Replace("False", "") 'Replaces the text in each Label control CType(row.FindControl("lblActive"), Label).Text = lblActive Else Dim chkbx As CheckBox = CType(row.FindControl("chkbxActive"), CheckBox) End If
The check mark works fine when not in edit mode. But when in edit mode, the row that is being edited works as expected. But the other rows now show True or False. I want them to have the const HeavyCheckMark in it instead.
I have a dynamically built gridview in which every row in editing mode has 2 dropDownLists, i set autoPostBack property of first list to true in order to change the other list values according to the first, but upon postBack, the gridview is not in edit mode any more.
I have a webform with two gridviews; a textbox for the invoice number, and a button to kick everything into action. I programmatically handle the select statements in the VB.Net file because I need to iterate through the second gridview's table to perform calculations and then put those results into the first gridview's table. Then I bind them. It works just fine.
The first gridview has one row with the payment information. The second gridview has multiple rows with the items that the payment is handling.Now I need to handle the edit, update and cancel functionality. I tried using a sqlDataSource for edit, update and cancel because it is simple, but it requires a Select statement so I guess that idea is not going to happen. I put a commandField with showeditfield=true, but clicking edit gives an error that rowEdit isn't handled. I have put that sub gvInvoice_RowEditing in there, but being new at this I have no idea what to put into that sub.
I can programmatically create all that functionality in the code behind. Won't it be quicker and easier if I write sub's for Edit, Update and Cancel that tell the gridview what to do - trick it to automatically handle all that? Is there an example available demonstrating how to tell the gridview to go into edit mode and proceed as if it was using a sqlDataSource?As a final note: perhaps it would be simpler if I create a third gridview to handle the job of totaling all the cash and listing each check seperately.Here is my code. It probably isn't the most elegant approach, but it works.
I have a grid view. When I click edit, the OnRowCommand fires and the row goes into edit state. Label becomes a TextBox. I then attempt to alter this value in some way and click update. This again fires the OnRowCommand event. The problem is, when I attempt to capture the new value, it instead just shows the original value.In my grid view I have:
Is there a way to update a value in a gridview, by pressing a button that shows within the cell? For example, i have a really simple gridview showing supply levels, I havr the following SQL table:
ID = Int PartNumber = varchar Quantity = Int
I would like to be able to press a "Plus" or "Minus" button on the gridview next to the Quantity (in stock) value which updates the database and re binds the data to the gridview, but without going into edit mode.
I have a gridview with a edit button for each row. Selecting an edit button changes the row to Edit mode. When in Edit mode, the row ID's are not being captured correctly. Any row I select defaults to one of the first 2 rows I had selected earlier.If I first select Row 1, it puts that in edit mode. When I "Cancel" out of it, row 2 goes into Edit mode. Now, when I select row 3, row 1 goes into edit mode again. From this point, any row I select puts either row 1 or 2 into select mode.
I have several places where I have a gridview and dataview set, and when I hit an edit button on the gridview it opens up the dataview. When I hit a cancel button fom the dataview I have this code that returns mew to the gridview:
In my gridview, I have a column for Amount. I want to calculate the amount as soon as user changes the Amount and display calculated Amount in a textfield. What I have done is I have Amount as Templatefield and have set Autopostback = true. In the event handler for textChanged I have function for calculate Amount which will calculate the amount and set the calculated value in a textbox. But I am getting an error message:
[NullReferenceException: Object reference not set to an instance of an object.] UpdateInvoice.calculateamt() +87 UpdateInvoice.txtAmt_TextChanged(Object sender, EventArgs e) +5 System.Web.UI.WebControls.TextBox.OnTextChanged(EventArgs e) +8739438 System.Web.UI.WebControls.TextBox.RaisePostDataChangedEvent() +55 System.Web.UI.WebControls.TextBox.System.Web.UI.IPostBackDataHandler.RaisePostDataChangedEvent() +10 System.Web.UI.Page.RaiseChangedEvents() +165
I have a gridview that I would like to the set the textbox in edit mode to multi line in order to show more of the content of the cell. Does anyone know how to change this property, I have tried (I think) every single one I could find in the Gridview property settings for editstyle, item style, row style etc.
I have gridview that has month as a column. When the user clicks a row's edit button, that row goes into edit mode. I have created a drop-down list for month in edit mode with the values 1-12. Right now, the drop-down list shows 1. I would like it to show the current value for that row. How do I do this? Here's the code for my gridview:
As you can see the second cell in each row is a EditButton, and the only cell that could be updated by users is the last one, DataField = TUDTIThreadActualStatus. I just want to know what could be the easiest way to validate the user entry when the row is in edit mode. Is there anyway to validate the textbox control with a validation control or is better to used code behind. Either way may you explain and drop some code if posible.
Is it possible to set the width of the textbox in edit mode equal to the width of the column before entering edit mode? I basically want to go into edit mode without change the size of the grid and without just setting the textbox width property to a specific number.
my gridview doesn't return to readonly mode after an update. i have set the editindex to -1did the databind() for the gridview too. but nothing works.setting keepineditmode to false doesn't work either.he documentation says that the gridview automatically returns to readonly after pressing the update button.my gridview is on a panel, and that panel is on an update panel.
I have some custom Code to handle the Insert And Edit Mode on the OnRowCommand="CheckTheData" property of the GridViewThe Grid Starts in the "Readonly" mode, click on the edit button and it goed into edit mode for that row My routine ends with:The update is done and the display refreshes, but in the edit mode. If I click the clancel button back to read only mode.How can I get the gridview to redisplay in the read Only mode after the update?
I have implemented globalization in my website by using Global Resources. I thought of implementing it not only on controls but in database fields. So for some columns which would be single columns in normal conditions, I considered multiple columns for different culture. For example if there was a [Title] column, I replaced it with [Title-en-US], [Title-en-GB], [Title-es-ES] and etc.I have a web page with a GridView control that displays the content of that table. In a normal case (without globalizing), I would have a TemplateField in the GridView like this:
I have columns for each culture defined in the system so that based on the user's choice, I display that corresponding column content.My question is I have no idea what I should set the Text and SelectedValue properties in HTML code above.Something like this: Text='<%# Bind("myTable.[Title-" + TheSelectedCulture + "]") %>' !!!!!