I have a datasource (quite heavy to run) and a Gridview on the page.
By default when the page is loaded the datasource and Gridview bind and display. However since the datasource is heavy I want on page load these 2 will not bind.
I want them to bind only on a button click. How to stop the datasource and Gridview from binding on 1st page load ?
I have the following datagrid
<asp:GridView ID="importedListGridView" runat="server" OnDataBinding="importedListGridView_DataBind"
Width="450" CssClass="GridAltItem" AutoGenerateColumns="False">
<RowStyle CssClass="GridItem"></RowStyle>
[code]...
I have a Dropdownlist in an itemTemplate in a gridview. My gridView binds to dataTable1 (from which the selected value for dropdown comes from) and dropDown binds to dataTable2 (i need to get DataValueField and DataTextField from here).
[Code]....
I am trying to bind the datasource of a ddl which is located inside the EditTemplate of a TemplateField.When is the best time to bind this datasource (after loading grid, before editing, ? (Note: I must do this in code behind).I am currently trying to bind it on the edit command:
[Code]....
The issue is that the list retrieved from the LoadLists method is null when passing to the LoadList method where the datasource is bound.
I m new in asp.net. I want to use gridview with a custom business object.
Should i have property in my custom object.is there a way to access object fields.
i hav a gridview ... now i need to add certain number of rows... say 5 rows .... which would b blank .. the rows consist of itemtemplate of textboxes.. here is the grid ...
[Code]....
now i am binding this gridview with certain data say :
[Code]....
now the problem is if the row contains 2 data originally ... then it alwz shows up with only two rows with binded data... but what i want is 2 (databinded rows ) + 5 (empty rows with textbox ) = 7 grid view rows .... now how to do it ... after i hav binded the textbox with data already....with some empty columns corresponding to the above code ?
I am using gridview. In which i m entering some value in textbox in Gridview.According to that value, i m generating datatable and binding it to the Gridview(Child Gridview).But when i m doing this, the performance of the page is very slow. How do i improve the performance.
View 3 RepliesI have few textboxes and I want to search the text (partial search is also required) in the database and then show the result in a telerik grid. The grid has to be hidden initially and when I click the search button it should show up and display the results.
View 2 RepliesI am creating online application in asp.net, there are some dropdownlist on a page, when i select some item from the dropdown list page load is calling again, how can i stop this?
View 1 RepliesI have the following sorting code that works find when clicking on a column header in a gridview.
Now, I'd like to fire this sorted table & fire it on load instead of having the user have to click a column heading.
how to do that?
Here's my code:
[Code]....
I want to insert a record in the gridview and i have designed it as the fig: below shows.
Initially there is no data in the datatable to which the gridview is bound to,so the gridview is not displayed when the page load,ok
I want to ask that is it possible to display Gridview on page load with only the header and the footer?
i.e;the user can see the header names and the textbox and drop down list at the foorter so that they can insert data in the grid?
i'm tring to clear the gridview in each page load, because each time my code insert a data the pervious data still shwoing in the page ,
i only want the inserted data to show not the whole data in the gridview
I have a GridView that I would like to load at a specific page that has an item with same ID as the QueryString parameter in the URL.
View 5 RepliesI have 2 gridviews. How to select automatically the first row of my gridview and based on that selection i have to display the first row values of second gridview in pageload
View 9 RepliesI am binding same data Table to Combo box and List Box on the WindowsForm Load.
When I select a value in Combo box automatically that value is also getting selected in List Box and same thing when I select a value in List Box that value is also getting selected in Combo Box.
Selection should be only for that particular control, how can I achieve this ?
I have 2 gridview on my page. I want that when the page loads the GridView should be visible with only the header. How can this be achieved.
View 4 RepliesI have records in a Gridview, when I click on the NAME of each item I want to open up and new page and display a more detailed view of the record, i.e. the extra details from the table. I have the following code setup:
<asp:GridView
ID="GridView1"
runat="server"
AutoGenerateColumns="False"
OnSelectedIndexChanged="GridView1_SelectedIndexChanged"
DataKeyNames="Code">
[Code]....
This setups the hyperlink and passes the key of the record in the URL, but how do I retrieve this key and use it on the new page ?
I have a 3 text boxes. When i enter datas in and click the button it displays the gridview with filtered data. Now my problem is if there is no data in gridview it has to show "no data" so I used emptydatatext property.. The problem is, in the page load itself it shows "no data"
View 3 Repliesi m working on application that works similar to our email i.e when user enter his emailid and password his inbox should be display and those unread should be in bold and i have a treeview forinbox,sent,deleted .when inbox is selected the inbox detail should be displayed using gridview by default like in email the inbox data shoul be display on pageload so i have written databind code for grid view in page load event
if(!Ispostback)
{
gridview databind code
[code...
Scenario:
I am creating a custom gridview control which has a custom CheckBoxTemplateField column (deriving from TemplateField class). This template field column has custom Checkboxheadertemplate (implementing ITemplate) and CheckboxItemTemplate (also implementing ITemplate). In InstantiateIn method of both templates (header as well as Item template), I am adding a checkbox control which has Autopostback = true.
My requirement is:
I want to mark all the values in the binding column of datasource if checkbox in headertemplate is checked. I dont want to mark only rows visible on grid. I WANT TO MARK ALL ROWS IN DATASOURCE. I want to do this in _CheckedChanged event of checkbox in header template.
Problem I am facing: When I check/uncheck the checkbox in header, it postbacks. so in OnCheckedChanged event, gridview's datasource is null. Secondly, in any event of gridview, I could access only those rows of datasource for which corresponding rows are visible in gridview through Gridviewrow.DataItem property. But I want to set it for all rows in datasource.
I have a gridview in which I have the autopaging option set to true, when i load the grid everything works on the first page, i can even go to second page , but when i click the edit button nothing happens and after that any click blows up the page giving me error Faile to load view state.
View 5 RepliesI have an issue that I've spent quite a bit of time trying to solve. I have a Detailsview and a Gridview that I have linked using the ID field, It has now been decided that they want to have individual pages for each Unit. I have this working for the most part, however the detailsview is not being displayed until I hit select the row in the gridview.
How do I get this to automatically display on page load?
A few questions regarding detailsview and gridview:
1) when page load, how can I default the detailsview to show the first record from the gridview? SelectedIndex does not have any effect to my detailsview.
[Code]....
2) how can I select a record in the gridview if my table has 2 key fields using below syntax?
[Code]....
ASP.Net Nested GridViews – GridView inside GridView with Expand and Collapse feature this artical works for me but i want to expand first row when page is loaded all the other record show as same as it is collapse. may be it is happen in this nested gridview
View 1 RepliesI have an ObjectDataSource that is bound to a GridView. The object accepts a parameter from a TextBox. The problem I have is when I use a CustomerValidator with a ServerValidate event, the ObjectDataSource would still attempt to perform a DataBind despite the fact the the customer validator has returned false. The following is the code in the ASPX page.
<asp:TextBox ID="sittingDate" runat="server" />
<asp:CustomValidator ID="DateValidator" runat="server" ControlToValidate="sittingDate" OnServerValidate="DateValidator_ServerValidate" />
<asp:ObjectDataSource ID="BatchDataSource" runat="server" OldValuesParameterFormatString="original_{0}"
SelectMethod="GetOrCreateSittingBatch" TypeName="BatchBLL" OnSelected="BatchDataSource_Selected" OnSelecting="BatchDataSource_Selecting">
<SelectParameters>
<asp:ControlParameter ControlID="sittingDate" Name="batchDate" PropertyName="Text"
Type="DateTime" />
</SelectParameters>
</asp:ObjectDataSource>
<asp:GridView ID="BatchGridView" runat="server" DataSourceID="BatchDataSource">
In the Custom Validator I have
protected void DateValidator_ServerValidate(object source, ServerValidateEventArgs args)
{
/Ensure that the entered data is a date.
string input = args.Value;
DateTime result;
args.IsValid = DateTime.TryParse(input.TrimEnd(), out result);
}
How do I stop the ObjectDataSource from data binding when validation has failed?