Forms Data Controls :: GridView - Putting TemplateField Fields In Data Bound Fields?
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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Oct 29, 2010
I am using gridview to display some columns with autogenerate column as 'true' and not added boundfields,headers.
And i am used stored preocedure for data source in gridview and i used dataset for gridview databind.
The gridview columns comes dynamically for each time.
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May 20, 2010
I have an Objectdatasource configured with Select, Insert, Update & Delete queries in a Dataset. This datasource is linked to my Gridview. I do not require all fields in the table to be displayed or updated in my grid so i have turned off the Visible property on several.
However, when i go into Edit mode and trigger the UPDATE to the database table, i get NULL values updated in the columns i set False for the Visible property.
How can i remove these columns from the GridView and the Edit mode and still have them UPDATE with their current values instead of being overwritten with NULL's?
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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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Nov 16, 2010
I have a query expression which I am binding to a GridView in Page_Load. The data I want to capture in the SelectedIndexChaned event is in a BoundField defined thus:
<asp:BoundField DataField="ID" HeaderText="ID" ReadOnly="True"
SortExpression="ID" Visible="False" />
If I set Visible="True", I have no trouble getting this data. Is there a way to hide the ID field and still get the data?
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Jun 3, 2010
my problem is that i have a gridview that fetch the data from database .I added the linkbutton on gridview that redirect to next page but cant working becouse at run time i add a bound field on gridview to calculate the time. source code
<asp:GridView ID="GridView3" runat="server" AllowPaging="True"
AutoGenerateColumns="False" CellPadding="4" Width="928px" Height="321px" OnPageIndexChanging="GridView3_PageIndexChanging" BackColor="White" BorderColor="#CC9966" BorderStyle="None" BorderWidth="1px" style="z-index: 102; left: 24px; position: absolute;
top: 248px" >
<Columns>
<asp:TemplateField HeaderText="Select">
<ItemTemplate>
<%--<asp:RadioButton ID="RadioButton1" onclick="javascript:CheckOtherIsCheckedByGVIDs(this);" runat="server" AutoPostBack="true" OnCheckedChanged="RadioButton1_CheckedChanged" />--%>
<asp:LinkButton ID="LinkButton3" runat="server" CausesValidation="False" CommandName="Select"
OnClick="LinkButton3_Click" Text="Update"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="id" HeaderText="Ticket Id" SortExpression="id" />
<asp:BoundField DataField="fname" HeaderText="Name" SortExpression="fname" />
<asp:BoundField DataField="phone" HeaderText="Phone No." SortExpression="phone" />
<asp:BoundField DataField="comname" HeaderText="Company Name" SortExpression="comname" />
<asp:BoundField DataField="sub" HeaderText="Subject" SortExpression="sub" />
<asp:BoundField DataField="mess" HeaderText="Message" SortExpression="mess" />
<asp:BoundField DataField="email" HeaderText="Email" SortExpression="email" />
<asp:BoundField DataField="status" HeaderText="Status" SortExpression="status" />
<asp:BoundField DataField="Dept" HeaderText="Dept" SortExpression="Dept" />
<asp:BoundField DataField="Prior" HeaderText="Priority" SortExpression="Priority" />
<asp:BoundField DataField="time" HeaderText="Time" SortExpression="Time" />
<-- <asp:BoundField DataField="Age" HeaderText="Age" SortExpression="Age" />--%>
<asp:TemplateField HeaderText="Detail">
<ItemTemplate>
<a href=# " onclick="return jsPop('Detail.aspx?id=<%#DataBinder.Eval (Container.DataItem,"id")%>', 'win01', 800, 500);">
view detail</a>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#FFFFCC" ForeColor="#330099" />
<RowStyle BackColor="White" ForeColor="#330099" />
<SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="#663399" />
<PagerStyle BackColor="#FFFFCC" ForeColor="#330099" HorizontalAlign="Center" />
<HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="#FFFFCC" />
</asp:GridView>
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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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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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Jan 27, 2011
I'm trying to retrieve all the data in the fields of the selectedRow in my gridview. Meaning that i get every field into separated values.
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Jul 17, 2010
I have a gridview that is populating from a SQL DB and working fine. However, based upon certain data I find in fields in the SQL table, I want to place a 'n' or a 'y' in extra columns in the gridview that I am assuming need to be templatefields. My thought was I could maybe add 8 template columns and then I could put a 'y' in the appropriate column based upon the data I find the table. For the life of me, I cannot figure out how to do this. I want to do this at rowdatabound time ( i think) but I just cannot find out how to, in my code, put that 'y' in the columns. Is this the right way to do this or do I need to do it another way? How do I get that 'y' in the proper column?
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Mar 11, 2011
I have a grid view attached to a custom query. The query selects data and the address data in the database is split into different fields like street_address1, mail_zip etc. etc. What I would like to do is display all the address data fields in my database in one field on the Grid View.
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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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Apr 13, 2010
I have a Gridview showing the data on one of my tables, and when I try to edit the data in one of the columns after I click update, rather than updating the record with the new value I typed in, the rows become null as in, everything in the row I just edited disappears. This inmediatly makes my application crash because one of the fields in my table (IssueDescription) doesn't allows null values.
This is the code, which is actually 100% auto-generated from when I created the GridView control and specified in the options to implement update, delete, edit options.
<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
AutoGenerateColumns="False" DataKeyNames="ticketNum"
DataSourceID="SqlDataSource1" [code].....
What is making the rows turn into null after the update? I did some research and tried to define the Update behaviour myself using RowUpdating function. After hours of learning how to use it I got it to "work", but because the Update turns everything to null when it updates, the sqlconnection command I use to do the query sends null anyways. I can paste the C# code if you'd like to see it, though I'd rather not use it if the auto-generated by asp above can be fixed instead.
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Dec 2, 2010
I have a web page with an object data source that is connect to an object access layer which retrirevs an Id, Name_En and Name_Local from some table, the object data source is connected to a GirdView, In the girdview i have a template control with a label inside it, i want to change the binding expression for the label depending on the current states of localization so for example if the page is arabic the label should bind to "Name_Local", if it's english then it should bind to "Name_En"
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Mar 19, 2011
I've got a gridiew with I've bound data to using a linq query as a datasource.The issue I have now is that I'm not sure how i can go about adjusting the appearance of the results in the fields.For example, if I want to turn the results in field 1 into a hyperlink (per record, e.g. record 1's hyperlink would point to url "x" and record's hyperlink 2 would point to url "y") which points to a location determined by a db query based on the record's value, how can I do that?And how would I go about adding columns that aren't present in the results, like a checkbox for each record?I suppose the stumbling block for me is that when using a linq query as a datasource, I am not presented with a layout of any kind in the aspx page, unless I use a linqtoSQL datasource (Which I would rather not use as I can't use complex queries with it....can I?
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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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Nov 11, 2010
i want my gridview to be
1 - validate entries
2- check neccesary fields
before insertion or updation ?
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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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Mar 2, 2010
i would like to create custom columns in the GridView Control.For example:After performing SQL query, there are 4 columns bound to the control:
1. ID
2. Name
3. LA
4. LE
Now, for each row, I would like to add column5. Custom - which would read LA and LE values from each row, assign them to variables vLA and vLE respectfuly, and then, I'd take vLA and vLE to perform custom calculations every time the page is displayed.I know how to make a custom colum to display calculated result, butCan someone please help me how to read LA and LE values for each row?
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Aug 30, 2010
Im a newbie, hoping any experts can lend a hand. I have a gridview table connected to an SQL database. I have auto generated the update and delete methods to allow me to edit the gridview.
However, I would like the editable data in the gridview to be replaced by a selectable drop-down box. The drop down box is referencing an sql table for selection.
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Jun 15, 2010
i was wondering if it is possible to make a gridview show only specific fields according to other fields in the grid view....
such as showing a button for one row but not the other due to different field values
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Jun 22, 2010
I have a gridview which sources information dynamically from database.Here when i go for the default "AllowSorting" flag equal to true, i am able to achieve sorting of all displayed columns except the textBox control column whose values refreshes to zero.
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Oct 29, 2010
I'm using Visual Web Developer 2010 against SQL Server 2008 R2.
I have a number of GridViews and FormViews working now, with edit functionality. However I have one field in my main database table that is of type 'Text'. With that one field, the edits won't take. I click Edit, change the text in the GridView, and click Update, but it just reverts back to the unchanged text.
It seems like I've tried everything. Is there a way to make that work without having to code it the hard way with a Textarea control?
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Jan 23, 2011
I just want to position the first label in a position on the left and then the start position of the second label at a position. I can't use relative because of the different lengths of the strings. But I the absolute will not work. I tried putting position relative in the cssclass phoneCostsStyle but it doesn't work.
[code]....
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