Access To Grid Columns By Name Not Index?
Dec 26, 2010is it possible to access grid column by name not by index grid.columns["name"] because if i add new column i must change all numbers
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Forms Data Controls :: How To Access To Grid View Columns Properties
Jun 25, 2010I have search for a long long time and could not find a solution to access to grid view's column properties. I have binded a grid view through this method, the bindGridView function will return a table with columns and rows.
The problem here is I cound not access to columns properties such as Grid_View.Columns.Count or Grid_View.Columns[0]."something". It seems like the grid_view does not have any column. But I can access to the Rows properties.
I have put this code within a (!IsPostBack) and set the AutoGenerateColumns to true?
I need to access to columns badly as I need t add additional column to the binded grid view.
[Code]....
Access :: Binding GetOleDbSchemaTable(OleDbSchemaGuid.Columns Info To Data Grid?
Apr 26, 2010I'm using the GetOleDbSchemaTable to get column info from an access db, column_name and description, but getting an error that the bind statement can't get the properties. I know its there because I can response.write it from its table, schemaTable.Rows(i)!DESCRIPTION.ToStringdo I have to bind it differently than when binding actual data from a table using the column name for reference?System.Web.HttpException: DataBinding: 'System.Data.Common.DataRecordInternal' does not contain a property with the name 'DESCRIPTION'.
View 2 RepliesC# - GridView.Columns[index].HeaderText Throws "Index Was Out Of Range" Error?
Jan 3, 2011gvOff.DataSource = o.ViewData(dCity.SelectedValue);
gvOff.DataBind();
gvOff.Columns[0].HeaderText = "ZZZZZZZZ";
gvOff.Columns[1].HeaderText = "YYYYYYYY";
gvOff.Columns[2].HeaderText = "XXXXXXXX";
Header count is correct.
AutoGenerateColumns: Flase/True ( i tried both)
If i remove the gvOff.Columns[index].HeaderText portions, GridView works fine, but when i put the gvOff.Columns[0].HeaderText, i get the exceptional error.
, i couldn't solve it. If you need further info, inform me.
EDITED:
Hold on! I commented the HeaderText portion and tested
int i = gvOffer.Columns.Count;
I found count is 0 eventhough the columns print out with DataBind()... Why?
NOTE: AutoColumn in this case is set to true. I guess i will have to edit the column
names from DataTable.
Forms Data Controls :: Create An ASP Grid With Dynamic Columns With An Ability To Freeze Columns And Rows
Sep 20, 2010I created a gridview that is made up of 4 gridviews and using a stored procedure to populate it. I create columns at runtime because the number of columns changes all the time.To make the grids editable I am adding template fields at runtime as I create the columns, this is to ensure that a user is able to edit the cells and some foot values update. Reason why I have four grids is to freeze rows and columns like in excel using javascript. The problem is that performance is very bad especially in IE, the grids take a long time to load. I am not sure if this is caused by the data load or the creation of text boxes. see some of the code below for my _aspx page:
[Code]....
Reference JSON Columns By Index In JQuery?
Feb 15, 2011I am looping through a JSON table using jquerys foreach operator. I am having to reference the the columns by name e.g:
$.each(items, function (index, item) {
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}
Whereas I would like to be able to say something like:
[code]....
Ultimately I'm trying to make this function dynamic with respects to the json list I pass in which will of course mean that the column names will change. However I would like to perform the same operations on the columns...
Databases :: Defining Index On Table Columns?
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2. What performance impact does it have on the rest of the system? Is it going to break something else?
3. I read about fill factor. What is this and how does it effect the system?
4. Is the new index physically going to make any changes?
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Forms Data Controls :: How To Get Get Index Of Grid In C#
Jan 19, 2011I want to do Get index of Grid in Asp.net C#. i have allow the paging = true and set the Page size = 10.In the Page 1st i Get the correct index of Row i find index usingint indexx = Convert.ToInt32(e.CommandArgument);
[Code]....
But when user change the Page from 1st to 2nd Page i get the wrong index like in 2nd Page if user click a 3rd i got the index = 12 instead of 2
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View 2 RepliesDataSource Controls :: Multi Worded Full Text Index Search On 2 Columns?
Jan 12, 2011I am having with the a full text index I am developing for a product catalog. It does all work to a degree I am just seeing some strange things happening.
From the database side I have a Products table that is being indexed on both the PartNumber and Description columns because I would like the users to be able to search either or using the search function.
Problem 1:
whenever I use multiple words in the search I don't always get the results I am looking for, this happens most notably when I am attempting to say put in a full part number (which for in this case would look like "I 10-9.2")
Problem 2:
I am not 100% sure that this is the most efficient way of completing what I am attempting to accomplish here since I have 2 columns that I need to perform the search on
Here is an excerpt from the click even when the user clicks the search button on the page:
[Code]....
And here is the search functions called from the click event to firstly check if there are any results and the second to display the results in a custom gridview:
[Code]....
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[Code]....
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"
ProviderName="<%$ ConnectionStrings:booksConnectionString.ProviderName %>"
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eg I'd like to only display on the screen the Surname, but on dump to csv would like firstname too.
I've tried visible = false, and display = false on the GridBoundColumns, but then they don't come out on the csv.
<telerik:RadGrid ID="grdAuctions" runat="server" AllowAutomaticDeletes="True" AllowAutomaticUpdates="True"
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MVC :: Html Helper Data Grid - Sorting Columns Using Post?
Jul 22, 2010I've been asked to take over a project that's filled with a bunch of bugs. It's currently using MVC 1.0 and there's a view with Html Helper Data Grid that uses a DataGridHelper class. I'm not that familiar with all of MVC yet, and I was wondering if it is possible to have the sorting of the columns be a POST event rather than a GET.
Currently when a user clicks a column to sort, the controller for the view calls the GET action method. This I guess is all fine and good, but the problem is that this view has a search form (which is a model in it's own right) with some text boxes and some drop down lists. When the GET action method is called, I lose all of the information in the search criteria. So when ever someone searches for something, but then wants to sort the results, it requries the db for all records (because all of the search criteria is cleared).
I guess there could be two solutions:
1) Is there a way to access the items in the search form / model in the GET portion of the action method? I've tried using ViewData or adding a parameter for the search form model, but (and maybe I'm doing it wrong) both return null.
2) Is there a way to make the sorting event of a column call the POST portion of the action method? That way I'll have the search form / model information and be able to sort the search result content instead of query for all records.
Also, there is a stored procedure that currently can handel all of possible search parameters. So, no matter what sort column is selected, or search parameters are entered, it can properly setup the sql query.
Forms Data Controls :: How To Get The Names Of All The Columns In The Grid View
Jun 21, 2010tried to use gridview.columns.count to see if there are any columns bt it shows zero, second how shall i et the names of columns in the gried view at runtime i need them to be stored in an string array
View 2 RepliesForms Data Controls :: Dynamic Columns ItemTamples In Grid?
Nov 13, 2010I have created Grid where in Columnsname come from Database and it will be generated from a setup page where Icreate column in SQL dynamically.
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Web Forms :: Access The Row Index Of A Table ?
Feb 15, 2010how can we access the row index of a table which is created dynamically.
View 2 RepliesSet Of Values In Listbox - How To Access Index
Jul 2, 2013I have a set of values in a listbox on an ASP webform. I can select items, and in code, if the user selects some row from a different grid, the listbox shows the correct value. The user can also select a different value. All of this appears to work as I would expect. However, that's as far as it goes. At first, the SelectedIndexChanged event wasn't firing. I determined that was because I hadn't hooked up the event handler, which I did with this:
Code:
asp:ListBox ID="AgencyListBox" runat="server" OnSelectedIndexChanged="AgencyListBox_SelectedIndexChanged" EnableViewState = "true">
(the EnableViewState wasn't part of that solution. I added it later)
Now, the SelectedIndexChanged event fires, though it doesn't fire when the user selects something, it changes later, possibly in response to an AutoPostBack, since I read that will trigger the SelectedIndexChanged event. That's fine with me, either time will work ok. However, the SelectedIndex itself is always -1, as if nothing was ever selected. In fact, though I can see visually that something is selected, I have yet to figure out what that was, or how to access the index, the text, or anything even the fact that something was selected.