string s = "" when I click on the DeleteImage1 button in the EditItemTemplate row.Cells[2].Text is an empty string in gridView_RowCommand (3 buttons inside an EditItemTemplate)
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I am using c# with VS 2010 and dynamic data. I have a gridview that is populated by scaffolding. I then want to use the "Delete" command on the row. While the command works fine, it does not seem to know the datarecord has child tables in a one to many relationship, thus it wont properly delete the child tables before deleting the parent table. Which is fine, i can call some linq to sql to get the table id and delete all of its children before the parent table is deleted. Odd thing is, the Gridview is retruning "" emtpry strings for the cell that has the table uniqe ID.
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and here is the gridview:
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why i am getting a empty string for "GridView1.Rows[rowIndex].Cells[2].Text"?
I have a gridview with two bound fields. On clicking a button i want to display the values in first row of gridview in two textboxes. But if gridview cell is empty i am getting the text in textbox to which the value of cell is given as -' 'i know my problem will be solved if i use the template fields instead. But i want a solution while maintaining the bound fields ,if any.
View 2 RepliesI am using ListView to display the Data.
I am getting some text or empty string from backend for a particular column.
If i got empty string i need to bind with an imageButton in that row.
and if i got a text i need to replace the imagebutton with text.
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I have a boolean / bit value in the database called "is_paid". Depending on this value I want to Disable a button. (the same would go for example to set a textbox not Visible, but anyway)
What I want is to Disable the button, if my boolean is 1 (true).
First I tried to convert my boolean value to text:
<asp:Button
ID="btnCalculatePayment"
runat="server"
Text="Submit"
onclick="btnCalculatePayment_Click" Enabled='<%#
Convert.ToBoolean(Eval("is_paid")) ? "False" : "True" %>'
/>
But got an error:
CS0030: Cannot convert type 'string' to 'bool'
However, if I use it one a Label it works fine: <asp:Label
ID="lblIsPaid"
runat="server"
Text='<%#
Convert.ToBoolean(Eval("is_paid")) ? "True" : "False" %>'></asp:Label>
So another trial I did was to CAST the data from the database to be the text that I want, like so:
SELECT not_paid = CASE WHEN is_paid = 0 THEN 'True' WHEN is_paid = 1 THEN 'False' END ....
And my code changed to:
<asp:Button
ID="btnCalculatePayment"
runat="server"
Text="Submit"
onclick="btnCalculatePayment_Click" Enabled='<%#
Bind("not_paid") %>'
/>
But got this error:
System.InvalidCastException was unhandled by user code
Message=Specified cast is not valid.
Source=App_Web_absjd3ob
StackTrace:
at ASP.manager_aspx.__DataBinding__control74(Object sender, EventArgs e) in c:Documents and SettingsAdminMy DocumentsVisual Studio 2010ProjectsWebManager.aspx:line 219
at System.Web.UI.Control.OnDataBinding(EventArgs e)
at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)
at System.Web.UI.Control.DataBind()
at System.Web.UI.Control.DataBindChildren()
So I wonder, is it possible to change the "Enabled" property based on by boolean value?
i'm trying to check for an empty cell in a gridview.
On the RowDataBound event I tried the following:
- if (String.IsNullOrEmpty(e.Row.Cells[2].Text.Trim()))
- if (String.IsNullOrEmpty(e.Row.Cells[2].Text))
- if (e.Row.Cells[2].Text == "")
None of them worked.
I'm using boundfields. I can't use a TemplateField with a label because I need to check for other stuff for that column in the RowDataBound event by doing e.Row.Cells[2].Text - that only works if I use boundfields.
When retrieving values from Gridview empty cells, you will get " " instead of a empty string or null.
Someone once change the columne's properties as following, but it doesn't work
ConvertEmptyString > true
HtmlEncode > false
HtmlEncodeFormatString >false
One solution is to check if the cell value is " ". If so, assign it an empty string. But this approach looks awkward.
I am using a GridView on my ASP.NET form.
Would it be possible to have a GridView with 10 empty rows, having 5 columns.
Can I define the number of GridView Rows I could Edit.
i would then have an Update Button, which would update all the rows to the database.
How to write code in vb.net to control the Dropdown which is inside FormView EditItemTemplate. FormView named "frmFaultsReg" DetailsView named "lstStatus" Actually what i want to do that there is a textbox inside FormView EditItemTemplate and ItemTemplate to insert Closing date. lstStatus has a value PENDING and CLOSED. If a user select CLOSED from lstStatus then the date textbox named "ClrDateTimeTextBox" should show current date time and to insert into database and if user again selects PENDING from lstStatus then the date textbox should show empty. I think the postback of lstStatus should work but lstStatus is inside the FormView thats why I am unable to hook it.
View 7 RepliesHow to Show ItemTemplate iNside EditItemTemplate Of GridView
View 2 RepliesMy gridview look like this,
Play Download SongName Date
button button 5/4/08
button button dala.mp3
button button gaima.mp3
*button - play button and download button,
Now I need to remove the space in the first row, i.e my grid view should look like
Play Download SongName Date
button button dala.mp3 5/4/08
button button gaima.mp3
button button lada.mp3 6/4/08
button button imasla.mp3
I have a gridview and it has two EditItemTemplates. I want to update the items inside the second dropdown (EditItemTemplate) when I select an item from the first dropdownlistbox (EditItemTemplate). I want to update dropdownlist2 when I select an item from dropdownlist1. How can I do this?
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I have a GridView in my page :
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But always temp string is empty!
What's wrong with it?
1. First i am populating a datatable with two columns of type text. The second column is a hyperlink (but i am not specifying that datacolumn type as hyperlink).
2. After populating the rows, i am adding the datatable to dataset.
3. then binding this dataset to the gridview (the gridview's AutoGenerateColumns=true).
Question:
Obviously, the hyperlink column is represented as text in the gridview (non-clickable hyperlink).
here i am trying to convert this hyperlink column (data rows), from text to a hyperlink, so that the user can click directly and navigate to that url.
FYI, I cannot change this method of binding, and just want to convert this text hyperlink to a real hyperlink.
In my gridview, I have an ImageButton and when the user clicks it, I show a modal, however, when I popUp modal its showing me the same Datakey value for each row, so, is there a way to use FindControl for the selected row within the RowCommand?
View 5 RepliesMay I know how can I call my "OtpLeaveDefineGridView_RowCommand(OtpLeaveDefineGridView, ??? );" at other function. I really don't know what should I put at "???" for the GridViewCommandEventArgs.
protected void OtpWebLeave_ServerValidate(object source, ServerValidateEventArgs args)
{
try
{
OtpLeaveDefineGridView_RowCommand(OtpLeaveDefineGridView, ??? );
OtpLeaveDefineDataSource.Insert();
args.IsValid = true;.........
With reference to the following link: [URL] .....
I want to save data to a different table. My save is working fine but the challenge is that it saves empty cells as well.I will like to save only QTyDelivered cell with value. Any empty QTyDelivered cell should be ignored (which means the row of QTyDelivered cell that is empty will not be saved) .How can i achieve this?
I want to get Row Fields in Gridview on Checkbox Change inside gridview.I have checkbox column in grid, i want to get row details in msgbox as i select checkbox. On selected index change of checkbox inside ridview.Everytime i select checkbox, it gives msgbox for row details.
View 1 RepliesWhen my LinkButton1 button is clicked in the gridview below, I would like the Gridview1_Rowcommand to assign the ID1 to the index variable. I am getting a "Input string was not in a correct format." error. The e.command argument is an empty string
View 4 RepliesI have a button inside a table in gridview templatefield and i want to access its row index value in row_command event
i used this line.
Dim index As Integer = Convert.ToInt32(e.CommandArgument)
but got error .Input string was not in a correct format.
However i am able to fetch the row index value in button _click event using this line.
Dim index As Integer = (CType(CType(sender, Control).Parent.Parent, GridViewRow)).RowIndex
I have a custom control that has a hidden field. Upon postback I want to obtain the value stored in it, but it's always an empty string.I am performing client-side manipulation of the hidden field values and have verified in firebug that the fields are correct before issue a post back,Here is the setup:
public class DualListPanel : SWebControl, INamingContainer
{
protected IList<DlpItem> UnassignedList { get; set; }
protected IList<DlpItem> AssignedList { get; set; } [code].....
I have a GridView and the second column (ie column 1) is:
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On the GridView's SelectedIndexChanged event I have:
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fullname is a Label alright, but its Text property is an empty string. How do I get the actual string that is shown in the cell?
I have a ListView control that might be empty sometimes. I would like to show a text message like: "No items to Show" when the ListView is empty.
I have read the FAQ of this forum. This issue is not there.
I'm trying to execute a query and display the result in grid view.Its working well...
However,I wish to display some simple text like"No tuples selected" making gridview visible to false if there are no rows selected for that query executed.Is there a way to do that?
I have a 3 text boxes. When i enter datas in and click the button it displays the gridview with filtered data. Now my problem is if there is no data in gridview it has to show "no data" so I used emptydatatext property.. The problem is, in the page load itself it shows "no data"
View 3 Replies