Now, what i want is that , when a user select something from any dropdownlist , a fuction should be called in which I can get column and row of that dropdownlist.
I can get the dropdownlist's id in that function along with row and column of dropdownlist.
I have a dropdown list within a listview 'EditItemTemplate' and 'InsertItemTemplate" which I am trying to populate from the database with code behind with ItetmDataBound event. Problem is I am getting NullException when I use this code which works fine for ItemTemplate.
I have a page where I use the ListView and DataPager.My listview is populated as a table where each row has a bit data a dropdownlist with some values and a link button. Now I am trying to pick out the selected value from dropdown list when I kick on my linkbutton. As long as I'm on page one, everything is woriking fine. But if I go to page three then I can not pick out the value I selected in the dropdownlist. I have tried to add a textbox in the listview and then I am able to get the value out I typed into the textbox independent which side I'm on.
Why can I pick out the value from textbox but not the selected value in dropownlist?
I want to pass the checked checkboxes value of my listview control to a second page so I can display the listview in this second page with only those selected records
this is what I am have so far , but dont really know how to get it to work the desire way.. Code is working but I am afraid that chekcbox and listview values for my loop are not correct
i have a listview. The listview contains a usercontrol with ID="ucEquationBuilder1" which is added only! in the SelectedItemTemplate.I've came along some post which stated you can't find the control in the SelectedItemTemplate unless it is also in the the ItemTemplate.
To me this sounded ridiculous. Untill i ran some tests, and indeed i was able to find all other controls (TextBox's Labels) which where both inside the itemtemplate and the selecteditem template.
To me this is quite frustrating. Is there a way to retrieve the control which is only inside the SelectedItemTemplate without adding it to the itemtemplate?
I have a basic list view, in the edit mode I have a dropdown list, and a checkbox, I want it so that if you choose "yes" from the drop down box the check boxs becomes enabled. I know I need to find the control but I keep getting object refrence error with this code.
[Code]....
the listview renders its layout / item template fine but when I click on edit to send it to edit mode it fails to find the dropdownlist ddlQA1YNM which is a bit ironic cause its the ddlQA1YNM that is making the call to ddlQA1YNM_ondatabound. Now it could be with the fact its on the databound stage. Not sure how that plays into the stack. I call ondatabound to determine what the dropdownlist value is and set the enabled status according on the load into edit mode.
want to find textbox inside InsertItemTemplate in listview there are two list view want to find textbox in the second listview that is inside listview i used that code but told me that there is error.
Dim lv As ListView = DirectCast(Me.FindControl("lv"), ListView)Dim lv2 As ListView = DirectCast(lv.Items(lv.SelectedIndex).FindControl("lv2"), ListView)Dim txt As TextBox = CType(lv2.Items(lv2.SelectedIndex).FindControl("txtCode"), TextBox)' If txt Is Nothing Then txt.Text = dr.AssetCode
I have read all kinds of great things about the new List View (well it was new when 3.5 was introduced). But I have not figured out how to set the width of a column. I have tried setting width in Layout, Item, Alternate, but none seems to affect the width.In related question, is there any way to hide a column?
I'm using following code to reorder listview columns programatically somehow it is showing incorrect behaviuor for certain scenarios. Please let me know if there is any alternative way -
[Code]....
using System; using System.Xml.Serialization; using System.Windows.Forms; using System.Collections; using System.Runtime.InteropServices; namespace TradeDesk { /// <summary> /// This class is used to save and restore the column width and order settings /// for a ListView control. Unfortunately, there is no easy way to obtain the /// order so a Windows message must be sent to the control. This class /// encapsulates that functionality as well as the serialization/deserialization /// of the settings. /// </summary> [Serializable] public class ListViewSettings { [DllImport("user32.dll")] static extern bool SendMessage(IntPtr hWnd, Int32 msg, Int32 wParam, ref LV_COLUMN lParam); [StructLayoutAttribute(LayoutKind.Sequential)] struct LV_COLUMN { public UInt32 mask; public Int32 fmt; public Int32 cx; public String pszText; public Int32 cchTextMax; public Int32 iSubItem; public Int32 iImage; public Int32 iOrder; } const Int32 LVM_FIRST = 0x1000; const Int32 LVM_GETCOLUMN = LVM_FIRST + 95; const Int32 LVM_SETCOLUMN = LVM_FIRST + 96; const Int32 LVCF_ORDER = 0x0020; [XmlElement("ListViewColumns", typeof(ListViewColumn))] public ArrayList listViewCols = new ArrayList(); public ListViewSettings(ListView listView) { try { foreach(ColumnHeader column in listView.Columns) { LV_COLUMN pcol = new LV_COLUMN(); pcol.mask = LVCF_ORDER; bool ret = SendMessage(listView.Handle, LVM_GETCOLUMN, column.Index, ref pcol); listViewCols.Add( new ListViewColumn( column.Text, column.Width, pcol.iOrder )); } } catch {} } public void RestoreFormat(ListView listView) { try { listView.Hide(); for( int i=0; i<listViewCols.Count; i++ ) { foreach( ColumnHeader column in listView.Columns ) { if( column.Text == ((ListViewColumn)listViewCols[i]).header ) { LV_COLUMN pcol = new LV_COLUMN(); pcol.mask = LVCF_ORDER; pcol.iOrder = ((ListViewColumn)listViewCols[i]).order; bool ret = SendMessage(listView.Handle, LVM_SETCOLUMN, column.Index, ref pcol); column.Width = ((ListViewColumn)listViewCols[i]).width; break; } } } listView.Show(); } catch {} } } [Serializable] public struct ListViewColumn { public string header; public int width; public int order; public ListViewColumn(string colHeader, int colWidth, int colOrder) { header = colHeader; width = colWidth; order = colOrder; } } }
I have a GridView in which I want the program to find a specific column, but it doesn't. I've used this code in another program where it worked so what am I missing here? Why doesn't it work? Here's the code where I'm trying to find "status" in column .
what I have to add/subtract from the following listview to change the table and column width. All my attemps like the style="width: 50%" have no effect.
How can I make the column of ListView Control invisible. The last column's header I have put in a label control and its item are in a html img control .
I have a listview that I am trying to initiate the connection string in codebehind. When I do it, I get the following error:The ConnectionString property has not been intialized.I know that I am successfully creating the connection string in codebehind because all other controls populate correctly from the dsame database.I do not get an error if I initiate the connection string in the html code.
Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control. error when I place a drop down list into my instert item template of my listview, but I have the exact same control in my edit view and it works fine, any reason I am getting this error? I know what it means but why would it work in the edit mode, and not the insert mode?
