I have a GridView that is successfully populated by an IList. IThere are about 2 dozen columns I only need 8. I am trying to call:
this.grdView.Columns[0].Visible = false;
But I get an index out of range error. And when I call, this.grdView.Columns.Count I get 0.
I have tried this on several events including: grdView_RowDataBound
in asp.net page user able to select gridview Columns, and it will hide remaining columns and that selection done by check box with column list bellow is Image link , what exactly I am looking for [URL] it look bellow after selection of column done [URL]
View 1 RepliesGridView1.Columns.Count is always zero even SqlDataSource1.DataBind();
But Grid is ok I can do
for (int i = 0; i < GridView1.HeaderRow.Cells.Count;i++)
I rename request headers here but
GridView1.Columns[i].Visible = false;
I can't use it because of GridView1.Columns.Count is 0. So how can I hide them ?
I have a Gridview and I want to hide a column when empty. The code works then the column is in Boundfield but not in Templatefield. Can anyone show me the code of how to do it in Templatefield?
Here's my code using OnDataBound event:
protected void hideColumn(object sender, EventArgs e)
I have a webpage that lists information about trucks and their map sections and whether the combination is active and will be used.
On the page I put a check box that says Show Only Active and marked the checked property as true by default. When the RowDataBound event fires I check to see if that checkbox is marked as true and if it is I check if the individual map sections are marked as active. If they are not active then I set the row visibility equal to false like below.
[code]....
dv = new DataView(table);
Table.Columns.Add("ID", typeof(string));
table.Columns.Add("Type", typeof(string));
table.Columns.Add("EmpName", typeof(string));
table.Columns.Add("Manager", typeof(string));
row = table.Rows.Add();
row["ID"] = result["ID"].ToString();
row["Type"] = result["Type"].ToString();
row["EmpName"] = result["EmpName"].ToString();
row["Manager"] = result["Manager"].ToString();
Then I am adding boundfield to gridview for all 4 columns. Now I want to check if "Type" column contain "Sales" thne do not show "Manager" columns. Let me know can I do this?
I have the asp.net application where I am having the editable grid view with the edit,Delete,Add options. this grid having as usual Template fields . I want to hide some columns. I know i can do that by using columns index. but i don't want to follow it. instead I want to hide columns by Id. this is because if in my application further I need to add more columns then there is need to change the code gain and again in the core. so I am choosing this way. Bu as i found <asp:TemplateField /> does not contain Id attribute. so it is become impossible for me to hide <asp:TemplateField/> by Id.
View 3 RepliesI am updating a gridview. Problem is that when I hide certain fields that I do not want the user to update, they lose their values ie. the data is wiped out in the field unless I show them on the grid and make them writeable. Is there a property I need to set for the field to retain the value when the grid is updated or is this in the sql statement?
View 7 RepliesI want to hide few columns of a gridview before they gets displayed. I want to do it by create a common function which can be used by multiple controls. I am using an extension and would like to know how it can be done.
Here is my code
[Code]...
I want to create an extension to hide or show columns provided in the list as an array. 1st function is used on page. While below two functions are needs to be used for multiple applications
I've got a grid view on my form that is bound to a data table at run tim. The data table is returned by a function rather than direct from the DB so I can't set the datasource at runtime.
I bind the grid in the page_load event like this:-
Code:
Dim _dt As System.Data.DataTable
_dt = _srvc.GetVinylShutters(0)
_dt.Rows.Add(_dt.NewRow)
grdShutters.DataSource = _dt
grdShutters.DataBind()
(_dt.Rows.Add(_dt.NewRow) is just there to add a blank row in, otherwise I wasn't seeing any columns at all)
I've then got the following snippet which I want to use to hide some underlying columns:-
Code:
For Each col As DataControlField In grdShutters.Columns
Select Case col.HeaderText
Case "OrderID", _
"ShutterID", _
"ModelID", _
[Code] ...
The thing is, wherever I put this it doesn't seem to hide the columns. If I break into the code I can see that grdShutters.Columns.Count equals zero althought I can see that the bound datatable has 38 columns.
I've tried the Page's Load, LoadComplete and PreRenderComplete events as well as the gridview's DataBound, RowDataBound and RowCreated events. I get teh same result in all of them. The grid doesn't actually have any columns until it appears on the screen.
My grid view will display the data like below..
Id Name Mark1 Mark2 Mark3
1 aaa 50 30 20
2 bbb 50 30 30
3 ccc 50 30 20
if mark3 has all fields with 0 means i want to hide column mark3. How to do this..
I have a gridview that I am loading from a stored procedure. I need to be able to hide certain columns and change the column names. Since it is loading with stored procedure the columns aren't listed in the gridview->edit columns properties.
View 1 Repliesi have done sending gridview data as excel to mail, it is working fine
then i had 5 columns in gridview but i want to send 4 column instead of 5 column.
protected void Button1_Click(object sender, EventArgs e)
{
fn_AttachGrid(); // here calling function to send mail gridview data as excel format
}
[Code]....
I am working with a gridview that pulls data from a SQL database based on selections in dropdown lists. The source table has six columns for attributes of the selection, but depending on what is chosen, there could be anywhere from one to six of those that are empty (all null values). When the column is empty, I would like to have it hidden so the page is less clunky and confusing.
I've searched around for an answer for the past couple days, but what I have found so far is either related to hiding columns that you know are empty which I will not know or removing them in the SQL code which I think doesn't work if the column is called for in the gridview code and doesn't exist in the query.
I want to hide all FK Columns in all tables. I am using Asp.Net Dynamic Data 4.0.
I tried to use this code:
[Code]....
And then in List page template call:
[Code]....
But this does not work. If I set breakpoint in function GenerateFields it newer stops there.
I have a gridview containing 10 columns. Three of them are set to visible="false' by default. When I click on 'Export to excel' Button, I can hide those invisible columns.
[Code]....
There must be more efficient way than this. How can I find the invisible columns and store their information in array and then only do a loop once?
I have an emergency request that I need to sort it out very quickly as I did not notice it early :(.
I have a dropdownlist, the contnet in the gridview (sqldatasource connection) changes based on the value the user slects, say I have play1, play2 from the dropdownlist, I would like to show column1, column2 and column3 with user selects play1; show column4, column5, and clomn6 when use selects play2; the datatable actually includes all 6 columns.
I understand that I need to use something like RowCreated event, and I need to set up condition based on the dropdownlist value, but I dont really know how to.
Suppose I have a DetailsView, which is bound to a SQLDataSource. The underlying table has two columns, an ID and a value. When in display mode, I want to display only the value. When I switch the DetailsView to edit mode, I want the user to edit the value, and not see or edit the ID. Making the ID column not visible solves this, EXCEPT that then the ID value is not stored in the DetailsView so two-way binding does not work, and I can't update the corresponding DB record. How do I do two-way data binding with a DetailsView, but hide the ID column from the user?
View 2 RepliesI have a repeater control having columns in it.When I bind the control to a data source then some of the columns become empty when there is no data associated with it.I want to hide the column if there is no data associated with it.I was trying to implement a solution given in this thread:
[URL]
However,I am not sure how to write the logic for hiding and showing the placeholder.I have written some code for the same but that clearly doesn't work.The following is the .aspx as well as the code behind which I am using:
[Code]....
how to hide columns in crystal report at run time?
View 4 Replieshow to hide a repeater column based on the user privileges.
Say I have:
<asp:Repeater ID="repeater" runat="server>
<HeaderTemplate>
<table id="table_id">
<tr>
<th>Name</th>
<th>Secret Info</th>
<tr>
</HeaderTemplate>
<ItemTemplate>
<tr>
<td><asp:Label ID="Label1" runat="server" Text='<%# Eval("Name") %>' /></td>
<td><asp:Label ID="Label1" runat="server" Text='<%# Eval("SecretInfo") %>' /></td>
<tr>
<ItemTemplate>
<AlternatingItemTemplate>
<tr>
<td><asp:Label ID="Label1" runat="server" Text='<%# Eval("Name") %>' /></td>
<td><asp:Label ID="Label1" runat="server" Text='<%# Eval("SecretInfo") %>' /></td>
<tr>
<AlternatingItemTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
</asp:Repeater>
How would I only display the 'Secret Info' column to logged on users?
I have a DetailsView control, in edit mode, I want to hide and show fields based on a DropDownList's value inside it (the DropDownList makes a postback).
The problem is that when a hide and the show operation is maked, the DetailsView control will make a rebind for it and all the filled fields are cleared!
How can I prevent this behaviour?
Is there any way to hide or show the columns in rdlc local report . I have main report with many columns now i have to hide or show some columns for creating the other reports from the main report.
View 6 RepliesI have a GridView that has several dynamic columns (I do not know how many at design time and it could be 0-12 columns, hence need for dynamic columns). I have the columns in the grid and data bound to them - works great. There are other standard, design-time TemplateField columns with TextBox controls in them. These are bound with values that the user can edit. The grid is posted back via a Submit button. My question is "Why does gv.Columns.Insert() cause all my TextBox data to be null on Postback, but gv.Columns.Add() works like a champ?"
protected void BuildColumns()
{
// The first column to begin to insert the columns in the GridView
int columnIndex = 5;
BoundField aoColumn = new BoundField();
aoColumn.HeaderText = "New Column 1";
gvMyGrid.Columns.Insert(columnIndex, aoColumn); // kills txtQuantity.Text on postback
gvMyGrid.Columns.Add(aoColumn); // works fine
columnIndex++;
foreach (MyEntity my in _myEntityCollection)
{
BoundField myColumn = new BoundField();
myColumn.HeaderText = String.Format("{0:d}", my.StartDate);
gvMyGrid.Columns.Insert(columnIndex, myColumn);
columnIndex++;
}
}
I then go on to assign values to these BoundFields in the _RowDataBound method and all of this works great. However, when I post back and try to reference some TextBox and they are all null. And yes, I have the BuildColumns() call wrapped in if (!IsPostBack) on Page_Load. Of course I would like to use .Insert() so that the columns can go in the proper location and not at the end of the Columns array.
I have a table dt_details which includes columns - name, address, phone,emailid, website,remarks,paid.
In the datagrid i have to display full columns only if paid is yes and if paid is no only name & phoneno should display.How to do that ?