Forms Data Controls :: Paging In A Gridview With Template Fields?
Aug 18, 2010I have a gridview with a template field in it.How can i do paging in a gridview with template fields?
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Forms Data Controls :: GridView And Focus / Have A GridView With Template Fields?
Apr 27, 2010I 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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Oct 26, 2010I 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, 2011I 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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<a href=""><%# Eval("Columnname","Foldername/{0}") %></a>
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Forms Data Controls :: How To Bind A Textbox In A Template Fields Programmatically
Feb 6, 2010I have a gridview to which I'm adding template fields programmatically. Each of the template fields have a textbox. I would like to make this text box have 2-way binding to a database column. see below code.
[Code]....
I'm calling the above class as follows
[Code]....
How can I make the text box such that when I edit the text, this change is reflected in the database as well?
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Aug 18, 2010Background: 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.
Forms Data Controls :: How To Protect Template Fields In Any Data Presentation Control
Jun 17, 2010I understand in a gridview that is databound by default HtmlEncode is set to trueHow do I protect template fields in any data presentation control?
View 1 RepliesWeb Forms :: Edit Template Fields In GridView
Nov 29, 2011I 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.
View 1 RepliesCustom Server Controls :: The Template User Controls Are Not Working When Paging Is Enabled In GridView
Dec 2, 2010Header controls like create ,delete are created by using templated user controls (ITemplate) .
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Forms Data Controls :: Databound Fields Vs Templete Fields In A GridView?
Aug 18, 2010I 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...?
Forms Data Controls :: GridView - Putting TemplateField Fields In Data Bound Fields?
Sep 26, 2010I 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?
Forms Data Controls :: EditItem Template Of Gridview - Template Field With Dropdown List - How To Make Current Value Sel
Dec 4, 2010Setting 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.
View 3 RepliesWeb Forms :: How To Programmatically Set Template Fields Label Value Two One Of Two Fields Returned In A Sqldata...
Feb 8, 2011 I have a sql data souce that returns several columns of data, and they are displayed in a DetailsView on a pretty simple vb.net page. I'm stuggling with one field though for the details view.
It's a template field, and if ClientType=1 (this value is determined else where on the page), then the label in the template field should have Text='<%# Bind("ClientName") %>', but if the ClientType = 0, then the label in the template field should have Text='<%# Bind("ClientTemporaryName") %>'
How do I tell the details view to set the text for ClientName to one or the other?
[Code]....
C# - Dynamic GridView With All Formatting And Template Fields?
Feb 25, 2011I 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..
Forms Data Controls :: Paging Parent Gridview Until Nested Gridview Selection Is Made?
Jan 28, 2011I have a parent gridview5 with child gridview 6, today i deployed it to our dev server and on that server we have alot more records, so for the nested gridviews i need to enable paging on the parent gridview5. Doing so works fine, until i make a selection within the child gridview6, once any selection is made, and i try to page the page throws an error, i have the following bound to the parent gridview5.
[Code]....
[Code]....
Forms Data Controls :: GridView Sorting, Paging And DataBinding / When Control Causes A Postback GridView Is No Longer Sorted?
Jan 10, 2011I'm trying to extend the GridView control to enable sorting and paging for any situation.
When using my control I am fetching data from a database and filling a DataSet with it, then binding the GridView upon every page load. My first question would be, is this the correct approach?
To sort the GridView I am overriding the OnSorting method which stores the sort expression and direction in the ViewState, then creates a DataView and utalises the Sort method to sort the underlying data. It then sets the Data Source to this DataView and rebinds the GridView.
Paging is handled by OnPageIndexChanging which simply sets the PageIndex property and again rebinds the GridView.
My problem is; when any control causes a postback my GridView is no longer sorted, presumably because it is persistently rebound. If I don't rebind it then the GridView is empty on postback since the data isn't automatically stored in the ViewState. I have considered saving the data source in the ViewState but I would assume that this is bad practice for large amounts of data? - also DataViews are not seralisable.
The only solution I can think of currently is to override OnDataBound and sort the data every time. This results in a double sort when paging triggers a postback which seems inefficient. Code illustration of this below,
[Code]....
I'm looking for the cleanest 'best practice' solution as this is a learning exercise more than anything else.
Forms Data Controls :: GridView PopUpEdit Form - Show Fields Not Shown In GridView's Columns
May 4, 2010Currently I have something like this, but when I click "update" the record doesn't get updated (but no error is returned).
[Code]....
Forms Data Controls :: How To Add Paging To GridView
Jun 23, 2010GridView: Applying style to certain columns. I add GridView1_RowDataBound() and have the following line:At that time, my GridView did not need to use Paging. Now after I add Paging to my GridView (AllowPaging="true" and I have AutoGenerateColumns="false"), there is an exception for my
GridView1_RowDataBound() as:
ArgumentOutOfRangeException was unhandled by user code
Specified argument was out of range of valid values.
Parameter name:in
How to add Paging to my GridView while I need to have word-break to some of my text columns....
Forms Data Controls :: How To Use Paging In Gridview
Aug 24, 2010how to use pageing in gridview.
i have a grid there we set pageing =ture but when i click index 2 nothing diaplay my code is
protected
{
void ImageButton1_Click(object sender,
ImageClickEventArgs e)string date =
"select srl_no,pmw_timestamp from t_tube_auto_inter where to_char(to_date( PMW_MALFUNCTION_START_DATE,'dd-mm-yyyy'),'yyyymmdd') between to_char(to_date( '" + TextBox1.Text.ToString()
+ "','dd-mm-yyyy'),'yyyymmdd') and to_char(to_date( '" + TextBox2.Text.ToString() +
"','dd-mm-yyyy'),'yyyymmdd')";//ORDER BY PMW_MALFUNCTION_START_DATE " + TextBox1.Text.ToString();
//between '" + TextBox1.Text.ToString() + "' and '" + TextBox2.Text.ToString() + "'";
dt =
{
GridView1.DataSource = dt;
GridView1.DataBind();
}
}
{
GridView1.PageIndex = e.NewPageIndex;
DataTable dt =
new
DataTable();DataAccessLayer.FillData(date, contest);if(dt.Rows.Count>0)protected
void GridView1_PageIndexChanging(object sender,
GridViewPageEventArgs e)//GridView1.DataBind();
}
Data Controls :: How To Make Bound Field And Template Field Read-Only In Edit Item Template Of GridView
Jul 31, 2013i am implementing a update query module.i am displaying all fields from a table for a term searched. well now i am implementing update option for the record which are displayed, i have like 70 columns in my table, and i want to know how to restrict some selected fields to be only read only while the form can be updated ?Like if user select to update a record then some selected field such as "Timestamp, UID etc some selected fields" remains READ ONLY !
View 1 RepliesForms Data Controls :: How To Get Only Certain Rows From The GridView While Paging
Jan 13, 2011I have a GridView with edit/delete column, label column and DropDownList column. I have a textbox outside the GridView and I want to choose only those rows from the GridView which have for the second column the same value as the value of the textbox while paging.
I wrote code, but I got 0 rows as a result, which is not true.