I have a grid and there are several dropdowns in a row of the grid.The dropdown selection change is driving other dropdowns in the row.
I put the dddls inside UpdatePanels still dropdowns are losing the tab position after a partial update. How is this generally done?
I have a scroll bar in GridView. I m maintaining scroll bar position with javascript. It is working fine.
I have one more datagrid in the same page. I want to apply same Javascript to that datagrid also. Here is the javascript I used.
<script language="javascript" type="text/javascript">
var scrollTop;
Sys.WebForms.PageRequestManager.getInstance().add_beginRequest(BeginRequestHandler);
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler);
function BeginRequestHandler(sender, args)
{
var m = document.getElementById('divexample2');
scrollTop=m.scrollTop;
}
function EndRequestHandler(sender, args)
{
var m = document.getElementById('divexample2');
m.scrollTop = scrollTop;
}
</script>
and here is the reference [URL]
I have a gridview with scroll enabled. Means i have a gridview like this-
[Code]....
I want during postbacks scroll position of my gridview will not change. I have tried many articles on the web, but in some scrolling is retained only in IE, in some others scrolling position changes on clicking edit link of gridview. I want a good solution for IE, FF, Chrome
I have some problems with maintaining scroll position after postback. First time I experienced the problem was when I (believe) added Combobox control from AJAX control Toolkit and/or UpdatePanel from AJAX Extensions. The problem is when I do the postback on the page the page is loaded at the top and not where I did the postback. Actually, this wouldn't be a problem if it isn't happening on a very large form. I have already tried using MaintainScrollPositionOnPostback="true", but it wasn't helpful at all. I can provide the code if needed, but I don't think it would be of any use because I have comboboxes inside update panels which are rebinded on a button click.
View 1 RepliesI have a gridview which is placed inside div tag to make the grid view to look like having scrollbars
<div id="divgrd" style="overflow: scroll"; width: 350px; height: 150px>
My grid is placed here.
</div>
Now it displays nice view of the grid with scroll bars. I am changing the color of the row selected from the grid. Only problem is if the grid has around 50 rows and I select the 50th row then the scroll bar moves to the top of the grid. I want to stop it and maintain the scroll position. I cannot change the height of the div tag as the grid may be very large if the rows inside is increased.
I have a web page that regularly refreshes on post back, and all of this works fine. However, a user has made enhance the page, which I need with:
1) There are 3 asp.panels on the page, which are scrollable vertically. When the page refreshes, the scroll position returns to the top. The enhancement is to maintain the position of where ever the scrollbar is on postback. How do I keep the scrollbar position on post back?
2) Within each of the panels are dynamically added web controls. These web controls contain gridviews, which are themselves contained inside div tags. These div tags can be hiddened and made visible by an image button. This hidden and visible state is actioned by some javascript on the page. Again, the user has asked how it is possible to maintain the state of these div tags on post back, i.e. those that are closed and those that are visible. Currently, the state is on postback for all the div tags to be visible. How do I maintain the state of the visibility of a div tag during postback?
I have seen alot of posts on the inetrnet with the solution to mainatin gridview scroll using an Ajax Update Panel.
Every solution I have seen though seems to have the same problem..as explained they dont work in content forms with master pages...at leat no solution I have seen has worked.
Does anyone know how to resolve this problem of using update panel to maintain gridview scroll with masterpages?
while using gridview whenever I go to edit an item it increases the row size - but this is because I have a multiline textbox as one of the edititemtemplates. It also increases the size of every row to the same size as the one that is being edited. Is there any way to keep the rest of the rows the same initial height and have an increased size just for the row being edited?
View 5 RepliesI have a List box that displays my Vendors, and then I have a Gridview that shows payments made to those vendors. Is there any way of making the gridview always show 12 rows, regardless if 4 payments were made or even 0 payments have been made ?
View 2 RepliesI have a problem with keeping the selected values in DropDownLists in rows in GridView while paging. I have this code behind:
private void RememberOldValues()
{
ArrayList LinijaIDList = new ArrayList();
int index = -1;
foreach (GridViewRow row in GridView1.Rows)
{
index = (int)GridView1.DataKeys[row.RowIndex].Value;
if (Session["equal_ITEMS"] != null)
LinijaIDList = (ArrayList)Session["equal_ITEMS"];
if (row.Cells[0].Text == lineTextBox.Text)
{
if (!LinijaIDList.Contains(index))
LinijaIDList.Add(index);
}
else
LinijaIDList.Remove(index);
}
if (LinijaIDList != null && LinijaIDList.Count > 0)
Session["equal_ITEMS"] = LinijaIDList;
}
protected void Button1_Click(object sender, EventArgs e)
{
//Session["equal_ITEMS"] = null;
RememberOldValues();
GridView1.AllowPaging = false;
BindGrid();
//RePopulateValues();
DataTable dt = new DataTable();
dt.Columns.Add(new DataColumn("LinijaID", typeof(int)));
dt.Columns.Add(new DataColumn("Ime", typeof(string)));
ArrayList LinijaIDList = (ArrayList)Session["equal_ITEMS"];
//if (LinijaIDList!=null)
//{
foreach (int LinijaID in LinijaIDList)
{
foreach (GridViewRow row in GridView1.Rows)
{
DropDownList Ime = GridView1.FooterRow.FindControl("ImeDropDownList") as DropDownList;
int rowID = (int)GridView1.DataKeys[row.RowIndex].Value;
//string Name = row.Cells[1].Text;
string Name = Ime.SelectedValue;
if (rowID == LinijaID)
{
DataRow dr = dt.NewRow();
dr["LinijaID"] = LinijaID;
dr["Ime"] = Name;
dt.Rows.Add(dr);
}
}
}
GridView1.AllowPaging = true;
Session["equal1"] = dt;
Response.Redirect("CheckedRowsPage1.aspx");
}
// else
//{
// GridView1.AllowPaging = true;
// Session["equal1"]=null;
// }
}
When I insert a value in the TextBox2 and want to select only the rows from the GridView from different pages which have value in the first column the same as the value in the TextBox2, after clicking on Button1 I get this error:
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
[Code]....
In this code you can see the select statement that the customers are selected for display to the user. Order by is at least being used to disply in name order. but this example here is one of several similar dropdowns. I would like that if they picked one customer then the next view show should be the same customer
<
order by customername
"
asp:SqlDataSource
ID="Customers"
runat="server"
ConnectionString="<%$
ConnectionStrings:SecurityDB_20101025ConnectionString %>"
SelectCommand="SELECT
* FROM [Customers] WHERE ([CustomerId] = ISNULL(@CustomerId, '') OR @IsSuperAdmin = 1 )
>
[code]...
i am using a gridview without any template or bound field....
<asp:GridView
ID="grvSchedule"
runat="server"
CellPadding="3"
CellSpacing="1"
SkinID="GridView_Regular" Width="732px">
<Columns>
<asp:TemplateField......
here the template field i added for hidden column... but i am not setting any values to this hidden field. i am setting the values to the grid from code behind like this....
grvSchedule.Rows[j].Cells[0].Text = Convert.ToString(dTable.Rows[i]["PatientId"]);
grvSchedule.Rows[j].Cells[2].Text = Convert.ToString(dTable.Rows[i]["Name"]);
grvSchedule.Rows[j].Cells[3].Text = Convert.ToString(dTable.Rows[i]["PatCode"]);
grvSchedule.Rows[j].Cells[4].Text = Convert.ToString(dTable.Rows[i]["Phone"]);
grvSchedule.Rows[j].Cells[5].Text = Convert.ToString(dTable.Rows[i]["Mobile"]);
grvSchedule.Rows[j].Cells[6].Text = Convert.ToString(dTable.Rows[i]["Status"]);
grvSchedule.Rows[j].Cells[7].Text = Convert.ToString(dTable.Rows[i]["Comments"]);
i need to add a new row at 0 position in gridview if a condition satisfies..... Condition is
if ((i == 0) && (Convert.ToDateTime(dTable.Rows[i]["Time"])
< Convert.ToDateTime(grvSchedule.Rows[j].Cells[1].Text)))
{
Here i need to add a new row to a 'GRIDVIEW'
}
I have a gridview bound with sql data. The data size fluctuates very much depending on certain parameters, thus the gridview columns often vary in width. What I need to do is be able to get the location of a gridview column so I can line it up with a textbox underneath it. I realize this sounds like a footer but for a number of reasons I cannot use a footer. Is there a way I can dynamically get the location on the page of the start of a particular column so that I can place a textbox in this same location?
View 4 RepliesI have a gridview positioning issue that may have been answered elsewhere, but I couldn't seem to find a similar post...
I have a webforms app containing a paged gridview (e.g., 200 records - 50 rows and 4 pages).
When the user clicks on a button in a specific row, another web page is launched to process that button click. When the user closes that page to return to the main gridview, the databind event is rerun and the page redisplays the gridview starting at the top. However, I want to have the previous position maintained (like an html bookmark), so that the grid will automatically be scrolled to the the previously clicked gridview page and item.
Setting attributes such as "MaintainScrollPositionOnPostback" do nothing in this case.
I lost the links that someone posted me how to make the gridview to have scroll bars.
I restate my question:I have a gridview to show about 20 records. Now put the gridview into a <DIV>.
Would like to know how do I make it scrollable but keep the header stay in the same position?There is a header for columns in my gridview.
I have a gridview inside a div and everytime i scroll to the bottom rows of gridview, it throws back to the top of the grid.
<div id="divGvIncidentDetail" runat="server" style="overflow:scroll; min-height: 10px; max-height: 250px;" onscroll="SetDivPosition()">
<asp:GridView ID="gvIncidentDetail" runat="server" ...>
</asp:GridView>
</div>
To prevent it, i tried implementing following javascript code by user Sun Rays:
<script type="text/javascript">
window.onload = function () {
var strCook = document.cookie;
if (strCook.indexOf("!~") != 0) {
var intS = strCook.indexOf("!~");
var intE = strCook.indexOf("~!");
var strPos = strCook.substring(intS + 2, intE);
document.getElementById("divGvIncidentDetail").scrollTop = strPos;
}
}
function SetDivPosition() {
var intY = document.getElementById("divGvIncidentDetail").scrollTop;
document.title = intY;
document.cookie = "yPos=!~" + intY + "~!";
}
</script>
I get the following error when i run the code: Microsoft JScript runtime error: 'document.getElementById(...)' is null or not an object Am i missing something? or is there any other better solution to maintain the scroll position
I have a gridview with the following information
NAME AGE
JOHN 22
ADAM 21
LISA 26
Now, I would like to find the position of NAME in the this gridview
I tried doing this
int index = 0
index = Convert.toInt32( GridView1.FindControl("Name").toString())
but that isnt working. Kindly note, I do not want to hardcord the position as 0, instead I would like to find it
I have a datalist within a table and it scrolls horizontally. The data is set up to progress from past to future. By default the page loads with the table scrolled all the way to the left, and therefore displaying data which is furthest in the past. I would prefer for the table to load with the scroll bar in the middle, so that data at the split between past and future is displayed and the user can go further each way as he desires. how to set the focus within the table to let my datalist load exactly where I want it?
View 14 RepliesI have a details view that currently shows the positionID when displaying data in select mode. This corresponds with the way the stored procedure was written. I've decide I want to display the PositionName though. I want to know the best way to do this.
I know I can rewrite the procedure to pull the PositionName instead but I thought there might be another way of doing it. Rewriting the stored procedure to pull the name instead of the ID may be the best way to do this. I thought there was probably a way to cross reference the position Id with the name. If there is then it may be unnecessarily cumbersome and not worth doing.
I also want to be able to pass the id to the Details view when it is in edit mode so a drop down that lists the position names will start with the correct current value selected when in edit mode. This would prevent the value from being accidentally changed. I'm not sure if I rewrite the procedure to return the PositionName instead of the PositionID that it won't cause issues with me wanting the drop down in edit mode to start with the correct value by passing the PositionID. The Position is stored as an int for PositionID in the db.
This is the current field in the Details View:
[Code]....
I'm using ling2sql to display the record with the record ID that's in the querystring. I want to get the previous and next records in the table. What is the simplest way to do that? Is there a way to determine that the current record is the nth record in the table?
View 6 Replies have some code which dynamically generates a number of drop down lists to provide the user with different options. The items in these drop downlists contain a value which is a unique id for that particular combination of options and a text component which just plain text but not neccessarily unique. I then have assigned a handler to these dropdownlists which is called on selected index changed to perform the relevant actions based on what options are selected. The problem is to make the system perform the correct action I need the unique ID from selectedValue of the drop down box but when it posts back it appears the selectedValue has been replaced to match the text of the item.
Dim dynDdl = New DropDownList()
dynDdl.ID = "ddlOpts" & i
dynDdl.AutoPostBack = True
AddHandler dynDdl.SelectedIndexChanged, AddressOf dynDdl_selectedIndexChanged
[code]...
I've got one columns of check boxes in a GridView, when i select the checkbox entire record(75 columns) is poupulated into formfileds resided just below the gidview. The problem I'm having is that when i selelect 50th record of database(db have 100 recrds) the view state should be on 50th record level but it is scroll over to the toplevel after selecting the checkbox, if user wants to select the 51st record again he scroll to that level.
View 9 RepliesI'd like to position the Pager numbers in a GridView control at a set position on each page, regardless of the number of records returned.
e.g. Even if only a few are returned, I'd still like to have the pager controls at the bottom of the screen.
Is this possible? VS tells me I can't use a div
i have a div in my page, with position absolute i want change the position TOP if i write;
div.style.remove("top")
style.add("Top","300")
does not happen nothing.
do you know how can i do it?
I would like to save some data for use after a page postback. Here is an example of what I'd like to do:
Partial Class TestPage
Inherits System.Web.UI.Page
Private _CategoryID As String = ""
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not IsPostBack Then
_CategoryID = "ABC"
Me.ViewState("CategoryID") = _CategoryID
Else
_CategoryID = CType(Me.ViewState("CategoryID"), String)
End If
End Sub
End Class
I've tried both session variables and view state. The page loads fine initially, but on postback I get the following error:
Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.
What am I doing wrong? How can I save this data for use after postback?