I m trying to add template columns at run time. but it get lost on post back ,
I have to add columns on postback ,what approch should i use that the columns should not diappear at postback
i am creating gridview with dynamic template, and the grid is disappear while postback. my code is below.
i am using GridViewTemplate class to generate Templates
Public Class GridViewTemplate
i am creating gridview with dynamic template, and the grid is disappear while postback. my code is below.
i am using GridViewTemplate class to generate Templates
Public Class GridViewTemplate
I've an item template inside a grid which has a <asp:LinkButton/> inside it. I assign the text for the link button as
<%# Convert.ToString(Eval("Tags"))%>
Tags can have a string with multiple tags in it delimited by space. For eg. "sports", "sports cricket", "sports cricket sachin" are the examples of some possible tags.
I want to create a button for each tag inside the string. How can i create the controls (server control - linkbutton) dynamically during runtime inside the grid item template?
I created a gridview that is made up of 4 gridviews and using a stored procedure to populate it. I create columns at runtime because the number of columns changes all the time.To make the grids editable I am adding template fields at runtime as I create the columns, this is to ensure that a user is able to edit the cells and some foot values update. Reason why I have four grids is to freeze rows and columns like in excel using javascript. The problem is that performance is very bad especially in IE, the grids take a long time to load. I am not sure if this is caused by the data load or the creation of text boxes. see some of the code below for my _aspx page:
[Code]....
I have a gridview in which i have declared one static templatefield (with some button ctrls inside) in design itself.
I add the remaining columns to it as a dynamic templatefield by inheriting the ITemplate interface.
My problem is that now when i cause some postback for the firsttime after the Gridview is bounded, it works fine. But when i cause some postback for the second time, all the controls in the static templatefield disappears.
below is my code
[Code]....
[Code]....
I have a GridView attached to an ObjectDataSource (returning a DataTable) in a UserControl. The code is really simple. Data comes down fine when the page is first rendered. When I click on Select or Delete (inside TemplateFields), RowCommand is supposed to fire but it doesn't, the page goes straight to Page_Load. I literally have 0 other event handlers that are set on this control and everything else in the codebehind shouldn't even fire if it's a postback. Also on postback, the Select and Delete buttons disappear. It looks like the TemplateFields are still there but they're empty. The data fields (all of two columns) post back fine.
UC ASPX Code:
[Code]....
Code Behind:
[Code]....
containing UC:
[Code]....
And here is the code from the ObjectDataSource:
[Code]....
I need to access the controls dynamically created template fields at run time in datagrid in post back event. Is there any way to retrieve the values in post back event? Or else give the ideas to acheive my requirement. I need to create no of rows and columns as text box as per user input. After fill the values to text box , i need to access the values in submit button.
View 1 Repliesim showing 3 rows and 2 columns in a Gridview...I want to generate a 3rd column at runtime in a Gridview ....
only 1 LinkButton in Gridview at position row1 and column 3
only 2 LinkButton in Gridview at position row2 and column 3
only 3 LinkButton in Gridview at position row3 and column 3
I am trying to create a datagrid with bound columns and template columns at runtime. I can successfully create the grid and columns if I only put one control per column, however, I have a need to place two controls in a single template column. If I create the column and controls at design time, it works fine as such:
[Code]....
My issue is trying to place both that label and dropdownlist into the same template column at runtime. Using code as follows, I can get one or the other successfully into the grid at runtime, but not both:
[Code]....
How can I add a second (ItemTemplate?) to that TemplateColumn? I tried:
[Code]....
but then only the dropdown list (the EditItem) shows in the grid at runtime.
can i implement multiple column sorting in an ASP.NET DataGrid.Datagrid contains Template columns.
View 5 RepliesYou know how when you put your cursor over the line that seperates 2 columns of a grid, the cursor turns into a 2 headed arrow and allows you to adjust the width of the column? How do you allow this with a gridview?
View 4 Replieshow to create dynamic template columns in gridview .
I have writing some of the code but it gives me error
The type or namespace name 'GridViewLabelTemplatecould' not be found (are you missing a using directive or an assembly reference?)
I have paste some my code
[Code]....
I have created a gridview which adds a remove button through item template. I wish to know how do u remove the row from grid view dynamically depending upon the button he clicks ?
protected void RemoveBtn_OnClick(object sender, EventArgs e)
{
Button clickedButton = sender as Button;
GridViewRow row = (GridViewRow)clickedButton.Parent.Parent;
int rowID = Convert.ToInt16(row.RowIndex);
GridView1.DeleteRow(rowID);
}
<asp:GridView ID= "GridView1" runat="server" AutoGenerateColumns="true" OnRowDeleting="RowDeletingEvent">
<Columns>
<asp:TemplateField HeaderText="Remove Items">
<ItemTemplate>
<asp:Button id="RemoveBtn" runat="server" Text="Remove" OnClick="RemoveBtn_OnClick"/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
I have a gridview, in an update panel, that's populated by an object data source when the page loads. This same Grid View is going to use a different data source and slightly different columns collection at runtime. The columns collection will be very similar, with one column added and three removed. Is this the best way to do this?
The other solution would be to create another grid view and data source to use when needed. The two Grid Views can be toggled off and on to use the correct one as needed. I've done this and it worked well, as far as I can tell. I'm curious if there are performance implications because of the additional Grid views and data sources. Or, if there are other reasons not to do this.
Which of these two ways is the best way to do this? Should I toggle between the two Grid Views at runtime or modify the grid view(datasource and columns) at runtime in the code behind?
in the gridview, i want the small lines to separate the columns.
I used row style property but it doesn't work.
I want to create dynamic template field in gridview at code behind. Kindly let me know how to create this.
View 2 RepliesI'm with C#,Asp.net.image update for an itemtemplate in a girdview.?
View 3 RepliesHow to show Header Template Alone in the Grid view when data source return NULL values or 0 value. and i want to also display the Header Template alone when the page loaded
View 3 Repliestried to use gridview.columns.count to see if there are any columns bt it shows zero, second how shall i et the names of columns in the gried view at runtime i need them to be stored in an string array
View 2 RepliesI have created Grid where in Columnsname come from Database and it will be generated from a setup page where Icreate column in SQL dynamically.
Now I wanted to have an idea about these grid. How to fetch data in this grid and how toinsert data into database.
Here two have two grid inner and outergrid, When i am click the Edit Linkbuttom i am able to see the EditItemplate of innergrid.. where i can edit the Value.. When going to update that values in Data base.. i am not able to fine the control . Here is the code
<
asp:GridView
ID="GrdMeetings"
runat="server"
AutoGenerateColumns="False"
Width="100%"
OnRowDataBound="GrdMeetings_RowDataBound"
GridLines="Horizontal">
<Columns>
<asp:TemplateField>
<HeaderTemplate>
<table
width="100%"
cellpadding="0"
cellspacing="0"
style="background-color:
#5a5a5a;color:
White">
<tr>
<td
style="width:
15%;"
align="center"
colspan="3">
Meeting Details
</td>
</tr>
</table>
</HeaderTemplate>
<ItemTemplate>
<table>
<tr>
<td>
<asp:Label
ID="txtyear"
runat="server"
Width="60px"
Text='<%# Container.DataItem %>'
/>
</td>
</tr>
<tr>
<asp:GridView
ID="MeetingDates"
runat="server"
AutoGenerateColumns="false"
Width="100%"
GridLines="Horizontal"
AutogenereateEditColumns="True"
ShowHeader="false"
CommandName="Meetingid"
OnRowEditing="MeetingDates_RowEditing"
OnRowUpdating="MeetingDates_RowUpdating">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<table
cellpadding="0"
cellspacing="0">
<tr>
<td>
<asp:LinkButton
ID="btnSave"
runat="server"
Text="Edit"
CommandName="Edit"
/>
<asp:Label
Visible="false"
ID="Label1"
runat="server"
Width="60px"
Text='<%# Bind("Meetingid") %>'
/>
</td>
<td
colspan="7">
<asp:Label
ID="lblProjectDate"
runat="server"
Width="100px"
Text='<%# Bind("Meetingdate") %>'
/>
</td>
</tr>
</table>
</ItemTemplate>
<ItemStyle
CssClass="TextAlign"
/>
<EditItemTemplate>
<table
cellpadding="0"
cellspacing="0"
style="height:
50px;
margin-left:
50px;
text-align:
right">
<tr>
<td>
<asp:Label
Visible="false"
ID="Label2"
runat="server"
Width="60px"
Text='<%# Bind("Meetingid") %>'
/>
</td>
<td
colspan="0">
<b>
Edit For :</b>
<b>
<asp:Label
ID="TextBox1"
runat="server"
Width="150px"
Text='<%# Bind("Meetingdate") %>'
/></b>
</td>
</tr>
<tr>
<td>
<asp:Label
Visible="false"
ID="lblmeetingID"
runat="server"
Width="60px"
Text='<%# Bind("Meetingid") %>'
/>
</td>
<td
colspan="0">
<asp:TextBox
ID="txtMeetingDate"
onkeypress="dateValidation(this);"
runat="server"
Text='<%# Bind("Meetingdate") %>'
OnTextChanged="txtMeetingDate_TextChanged"></asp:TextBox>
<ajaxToolkit:CalendarExtender
ID="calEx"
Format="MM/dd/yyyy"
runat="server"
TargetControlID="txtMeetingDate">
</ajaxToolkit:CalendarExtender>
</td>
</tr>
</table>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<table
style="margin-left:
-0px">
<tr>
<td>
<asp:LinkButton
ID="btnUpdate"
runat="server"
Font-Bold="true"
CommandName="Update"
Visible="false"
Text="Save">
</asp:LinkButton>
</td>
<td>
<asp:LinkButton
ID="btnDelete"
runat="server"
Font-Bold="true"
CommandName="Delete"
Text="Delete"
Visible="false">
</asp:LinkButton>
</td>
<td>
<asp:LinkButton
ID="btnCancel"
runat="server"
Font-Bold="true"
CommandName="Cancel"
Text="Cancel"
Visible="false">
</asp:LinkButton>
</td>
</tr>
</table>
</ItemTemplate>
<ItemStyle
HorizontalAlign="Left"
VerticalAlign="Bottom"
Width="60%"
/>
</asp:TemplateField>
</Columns>
</asp:GridView>
</tr>
</table>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<AlternatingRowStyle
BackColor="#99CCFF"
/>
</asp:GridView>
and the Events that are
[Code]....
I am developing an application using ASP.NET with C#.NET.in my application i have a gridview control and radobutton list having the values as Manufacturer and Distributor. based on the radiobutton selected value,the gridview will bindedup.
i am using SQL SERVER 2005 as backend server. in my database i have one table with columns as
1.mfropendate
2.mfrclosedate
3.mfrawarddate
4.distopendate
5.distclosedate
6.distawarddate
My gridview has 3 columns as Opendate,closedate,awarddate.
if user select the radiobutton as manufacturer,only mfropendate,mfrclosedate,mfrawarddate have to bind. and if user select the distributor the remaining 3 fields will have to bind. for that i had write a storedproc as create procedure sp_GetDraftBids as begin select mfropendate as opendate,mfrclosedate as closedate,mfrawarddate as awarddate, distopendate as opendate,distclosedate closedate,distawarddate awarddate from draftbids end GO
i.e i had taken the alias names for that fields so that i will bind the only 3 columns to grid view as opendate,closedate,awarddate.
My gridview code is
[Code]....
here i had taken the same alias names as i have to bind only 3 columns to gridview.when i run my application i am getting the records in data table with column names as opendate,closedate,awarddate,opendate1,closedate1,awarddate1.i.e it does not allow the same alias name.
for two radio button conditions i.e for manufacturer and distributor the gridview binded with opendate,closedate and awarddate columns as i had binded the gridview boundfields withat names.
but when user select the distributor radiobutton i have to bind the opendate1,closedate1 and awarddate1 to the gridview. for that should i can i change the storedproc are any other solution is there?
How to resize the width of columns of grid view? I want a column 250px wide.How I can do this?
View 4 RepliesI have search for a long long time and could not find a solution to access to grid view's column properties. I have binded a grid view through this method, the bindGridView function will return a table with columns and rows.
The problem here is I cound not access to columns properties such as Grid_View.Columns.Count or Grid_View.Columns[0]."something". It seems like the grid_view does not have any column. But I can access to the Rows properties.
I have put this code within a (!IsPostBack) and set the AutoGenerateColumns to true?
I need to access to columns badly as I need t add additional column to the binded grid view.
[Code]....