Forms Data Controls :: GridView And Focus / Have A GridView With Template Fields?
Apr 27, 2010
I have seen a number of posts on this, but none that quite serve my needs. I have a GridView with template fields. I use postback because when a value is entered in one field a calculation is done to supply the value in another field. I simply loop through all the rows after each postback (there are not many so it is fast). I do not use a select command or button to select a row. After postback I do not know how to return the focus to the row that was being used. I can return the focus to the first row just by using gridview1.focus.
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Aug 18, 2010
I have a gridview with a template field in it.How can i do paging in a gridview with template fields?
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Oct 26, 2010
I have a datatable with the following column names
ProviceID, ProvinceName, Year,
TPM, PM 10, PM 2.5, B(a)p
I'm trying to display data from this table in a gridview using template fields. Here's an example of a label in my item template
[Code]....
When i bind data to this grid view, i get an error saying column "PM 2" was not found. For some reason, the program is dropping the .5 from the column name. I am exploring the possibility of replacing the number with alphabets only but this may not be possible as the end user may not find it user friendly. Is there a way for me to get around this problem? I get a similar problem with B(a)p, it drops everything after the B. Any ideas on how to get the gridview to bind column names with special chars in it?
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Mar 6, 2011
I have visual 2010 with net 3.5 web app. I was implementing EntityFramework in my project and added a gridview to a entity source control. It worked ok, with select, update, and delete buttons enabled on the grid. But then, i needed to add a template field bound to a Foreign table, so my users select value from a list instead of writing the code. After that, my app fires error when i delete. I tried everything, inclue dakeyNames, write code on my RowDeleting, RowDeleted, RowCommand, but error persists.
Now, i can delete the row, but it then i get the error Object reference not set to an instance of an object If i implemente delete code on RowCommand i get the error: Store update, insert, or delete statement affected an unexpected number of rows (0). Entities may have been modified or deleted since entities were loaded. Refresh ObjectStateManager entries.
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Apr 16, 2014
Iam using the below code in ASPX for displaying images that are present inside my website project folder
<a href=""><%# Eval("Columnname","Foldername/{0}") %></a>
eg:
<%# Eval("Gallery","ImageFolder/{0}") %>
Now my question is I want to call the foldername itself from database its column name is GalleryFolder
<%#Eval("GalleryFolder")%>
How to use eval inside another eval or is there any other options??
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Oct 27, 2010
i have used the below gridview item template , which is working fine http://www.aspsnippets.com/Articles/Adding-Dynamic-Rows-in-GridView-with-DropDownLists-in-ASP.Net.aspxI need to set Tab Index here.
1. I have a textbox outside of gridview , on pressing the tab from the textbox in need to focus on gridview item template first row.2.After user click add new button, again i want to focus on the second row on the gridview item template first column.
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Nov 29, 2011
I have 3 edit template fields in the gridview with 1st and 3rd as a textbox and second one is a dropdownlist. The second one gets it's data from another table. I'm trying to get the values in the 2nd one and I'm unable to do it.
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Aug 18, 2010
Background: I'm populating lots of asp.net c# GridViews and ListViews from a database and subsequently users may export them to Excel. I want export as native Excel (not html). I can't use office automation, and I'm using JET which works fine. I have no control over users' machines. Question: When doing the export, you have to tell Jet what type each field is, in my case "text" (varchar) or "numeric" (double). The difference is that if you export a numeric column, the users can sum the data in Excel, where as strings are exported with a leading apostrophe and so are not much use in arithmetic.
Currently I parse the first data row of the Grid/ListView, check if each value is numeric or text, and assign a type to the column accordingly. That works, except for when I have something in the first column which looks numeric but in fact is a text string. I don't want to parse every row in order to be sure I have the correct data type as some of these exports are quite large. When I load the Grid/ListView from the database, the database certainly knows what type each field is. So my question is... how do I extract the type of the database item behind a a Grid/ListView item? I could explicitly code it as an attribute on the item, but that's duplicating information I already have, if only I can get to it. I know that where I have a DataTable then I can get the underlying type from that, but mostly I don't have tables handy, just the Grid/ListView. Note that Jet will throw if you try to insert an empty string into a nullable numeric column. The way to do this is to omit that column name from the insert statement, or output a zero.
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Aug 18, 2010
I am using TempleteFields for all columns in my GridView. In that columns I am using only some fields for customization but not all.
Is there any performance issue with Databound Fields vs Templete Fields in a GridView...?
Do I need to replace the remaining columns with Databound Columns instead of TempletField columns...?
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Mar 3, 2010
I have a formview with various templates set up for a database that has 255 columns. I need the insertitemtemplate to pre-fill values based upon a specific selection by the user (just like the edit item template) but when the template is switched to insertitemtemplate every text box is cleared. The idea is that a new entry is usually made by making minor changes to an existing entry. With 255 fields I don't want to require the user to enter every field when only three or four need to change.
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Sep 26, 2010
I have a GridView, and I want Column1 to be equal to datatable data (filled by a SqlDataAdapter). Then I have two other fields by the SqlDataAdapter (first name, last name), and I want to have those two fields combined to form Column2. I have a TemplateField for my GridView that combines the first name and last name with Eval()'s, but the GridView places this combined field TemplateField and puts it as the first column.
How can I do this so that TemplateField can go in between fields that are databound?
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May 4, 2010
Currently I have something like this, but when I click "update" the record doesn't get updated (but no error is returned).
[Code]....
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Dec 4, 2010
Setting up the editItem template of a gridview. I have a template field with a dropdown list for editing. When the gridview goes into edit mode the dropdown list is displayed with all the right options but the current value of the field (pre-editing) is not the selected value of the dropdown list? How do I make that happen? I have a couple fields where the editItem template will use a dropdown list and I'm sure a user will not realize those values have changed and they will just edit what they intended to edit and save the changes, inadvertently also making changes to other fields.
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Feb 25, 2011
I want to add gridview dynamically with all formatting and with template fields ..
i m trying it by below way.
[code]....
but the problem is i m not able to assign datasource to gridview as i m not able to get object of gridview..
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Nov 2, 2010
Currently I'm designing a web page which will be used for touch screen device. In my gridView it got one button ItemField column so when this button is clicked it will update another column value. So if I got more than 30 records and I want to update the last record I need to scroll down the page to the end and do update. Up to here everything is fine. But the problem is after I have successfully updated the last record; the page will refresh and back to the first record again. So when user wants to view record which they updated they got to scroll down and check. So I just want to know is there any way that allow me to set focus on the updated record. So each time user done update they can straight a way check the result and no need to scroll down.Cos this will be very troublesome for them.
I got think of using Paging, but the page number size is too small ,I don't think it is good to use on touch screen device.
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Mar 24, 2010
I have an windows application, in this i have one grid view and am filling the grid view rows dynamically.
Now I would like to focus the last row of the grid while filling in which it is focusing the first row in the grid.
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Apr 9, 2010
I am trying to set the focus to a control in a gridview (QTY).
<asp:TemplateField HeaderText="Quantity Needed">
<ItemTemplate>
<asp:Label ID="id" Text='<%# Eval("id") %>' runat="server" Visible="false" />
<asp:TextBox Width="30px" MaxLength="4" ID="QTY" runat="server" AutoPostBack="true"
OnTextChanged="check_qty" />
</ItemTemplate>
</asp:TemplateField>
I need to set the focus on the QTY control in the next row in check_qty. I was able to set the focus on the control in the current row by using:
row.FindControl("QTY").Focus()
but I need to set it on QTY in the next row.
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Feb 2, 2010
I have a gridview placed on the Panel(Scrollbars set to Both).
If I click on Edit button of the gridview for example Row number 100 then the focus of the page goes to the top of page and I always scroll down to the particular record to make changes.
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Feb 1, 2011
I have a gridview that contains about 35 rows. a user has to scroll down the page to view the rows. when a user click edit. the row goes to edit mode, however, the page goes up to row 1, I need to keep the row visible to the user upon clicking the edit mode. how can I apply such a thing.
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Feb 16, 2010
I have a Gridview that provides the user the student name for a particular class, a dropdown list to enter grades. If a grade of 'U' is given, a textbox appears in which the last day of attendance must be listed.
It works... though not as conviently as it could; the faculty would like to be able to tab from one dropdownlist to next in succession.
On each ddlGrades changes I write the value to the database and if a 'U' was chosen, display the textBox... but I can't figure how to set focus on the next ddlGrades control, or even the same ddlGrades control that initiated the postbock.
Below is my simplified .aspx followed by the codebehind
[Code]....
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Jan 6, 2010
I have a text box in a gridview that is causing some problems with user input. The first time the user opens the page the gridview is populated with zero's in all rows textboxes. I set the focus to the first textbox in the Page_Load event but the cursor is placed to the left of the zero and when some users enter data they don't realize the zero doesn't go away so the first row ends up wrong. Once the tab or enter key is hit and the next row is selected, the zero is "selected", for lack of a better term like when the insert key is predded, and once the user starts typing only the new value remains. Is there a way to make the zero in the first row "selected" ?
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Oct 1, 2010
I have a GridView that has approximately 800 records. I have a search feature that finds a record and focuses to it. When I click Edit for that record, the Gridview flashes and goes back to the 1st row. If I search for the record again it is in edit mode. Is there some setting to keep focus where it is? I added the following code to try and keep focus, but it doesn't work.
[code]....
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May 1, 2010
I have a gridview with edit functionality and using the EditItemTemplate section. I am trying to set focus to a textbox when user selects the edit mode.
[Code].....
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Jul 21, 2010
My gridview displays fields from a table and allows for edit, delete and insert. I need to add a column with a derived field which will be calculated every time the user is either entering a new row or editing the value of the weight field which is one of the fields of the gridview. This calculation is done in the fly and won't be saved in the database.
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Feb 24, 2011
are below all 3 points the same?
1)<boundfield>
<asp:button ....>
</boundfield> [code].....
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