gridview

问题 How to add checkbox column to gridview . i've tried: foreach (GridViewRow objRow in GridView1.Rows) { TableCell tcCheckCell = new TableCell(); CheckBox chkCheckBox = new CheckBox(); tcCheckCell.Controls.Add(chkCheckBox); objRow.Cells.Add( tcCheckCell); } How can i add the objrow to gridview? Or is there any other method of adding a checkbox column to an ASP.net GridView ? 回答1: The problem is that you cannot add a CheckBox field to a GridView in order to have a column of checkboxes - the

问题 So I have an ASP.NET page with two controls: a GridView which displays rows from a SqlDataSource , and in which the user can select a row; a DetailsView in which the user can see and edit the values of the selected row. The DetailsView can update the underlying data, but even though the page reloads, the GridView still displays the old data until I manually reload the page in the browser. How do I ensure that the GridView displays the correct data after the update in the DetailsView ? P.S. It

问题 While i am working on gridview i faced following problems, any help will be appreciated, When I load data to my gridview it loads only first 3 items of the array but there are 18 items to be load. why it doesn't load other 15 items. (Log.i it shows all the 18 items in my LogCat). Since there are only 18 items belongs to the MainCategoryID=1, it should load only 18 grids, but this loads 28 grids(that is because there are 28 items inside responseJson). I want to limit it to 18 grids. (Inside

问题 I have a gridview where I bind a datasource, and I had to add sorting for this gridview; I added the code below to that, but it didn't work well. private string ConvertSortDirectionToSql(SortDirection sortDireciton) { string m_SortDirection = String.Empty; switch (sortDireciton) { case SortDirection.Ascending: m_SortDirection = "ASC"; break; case SortDirection.Descending: m_SortDirection = "DESC"; break; } return m_SortDirection; } protected void GridView1_Sorting(object sender,

问题 I have an asp:Gridview bound to an asp:ObjectDataSource. I have disabled the ViewState on the GridView, and have not set the DataKeyNames property. I have about 10 BoundFields and a few TemplateFields. These TemplateFields are not bound to server controls but to an anchor tag or to an img tag. However, at runtime, when I switch on page tracing I see that the ControlState of the Gridview varies between 7 and 12K for displaying just 14 rows of data. (View source on the rendered page also gives

问题 I have an ASP.NET GridView that's bound to an ObjectDataSource (which is bound to a MySQL database). On this grid, I have 2 unbound ButtonField columns that I want to trigger server-side events. Hence I have added an eventhandler method to the GridView 's RowCommand event. In the code of said eventhandler, I need to somehow get hold of the underlying DataRow that was clicked on by the user. However, I can't seem to get this to work; if I use code like the following the selectedRow variable is

问题 I wants to enable or disable linkbutton on some rows of gridview based on condition.. Can i enable linkbutton on one row and disable it on another row of same grid view ??my code is here protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) {LinkButton lnk2 = (LinkButton)e.Row.FindControl("LinkButton2"); if (e.Row.RowType == DataControlRowType.DataRow) { SqlCommand cmd12 = new SqlCommand("Select testsession_status from student_vs_testsession_details where testsession_id

问题 I can't seem to get either EmptyDataTemplate or EmptyDataText of a GridView to work. I'm fetching the GridView contents in de codebehind and attaching them with using DataBind() . I've tried having them as null and as an empty List , and in both cases the text I put into EmptyDataTemplate or EmptyDataText is not displayed. What am I doing wrong? EDIT (Code snippet) This is my GridView: <asp:GridView ID="grid" runat="server" EmptyDataText="EMPTY"> </asp:GridView> And I've tried these two for

问题 I have a GridView on my aspx page which displays a collection of objects defined by the following class public class Item { public string ItemName{get; set;} public object ItemValue{get; set;} } Then in my aspx markup I have something like this <asp:GridView ID="MyTable" runat="server"> <Columns> <asp:BoundField DataField="ItemName" /> <asp:BoundField DataField="ItemValue" /> </Columns> </asp:GridView> What I want to know is: Is there a way to use conditional formatting on the ItemValue field

问题 I'm working on android application that will have basic image gallery functionality included. I've managed to build activity that fetches list of photos from my application backend API and render them in android gridview within activity layout. This is how it looks like at the moment: However I'm having difficulties to build same gallery experience for user's device photos that were taken by camera and stored on device. Two solutions I considered were: Building my own image gallery. Starting