Forms Data Controls :: How To Read CommandArgument From ListView With InsertItemTemplate
Jun 7, 2010
I have a ListView and I'm using the option <InsertItemTemplate>. Inside this template I have two control: TextBox and Button.
I'm having tourble in C# to read the CommandArgument of my button OnCommand event:
What am I doing wrong?
protected void AddComment(object sender , CommandEventArgs e)
{
string Args = e.CommandArgument.ToString();
}
<asp:Button
ID="buttonComment"
OnCommand="AddComment"
CommandArgument='<%#
Eval("MyId")%>'
runat="server"
/>
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Similar Messages:
Sep 30, 2010
I try to datbind a listview which is inside another listview InsertItemTemplate.
[Code]....
I'm binding the listivew in the parent listview onitemcreated events. I receive the error Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.
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Jan 19, 2010
I have the following ListView (extra code removed for clarity) :
<asp:ListView ID="lvParticipants" runat="server" DataSource='<%# Eval("Participants") %>' >
<EditItemTemplate>
<asp:DropDownList ID="ddlCountry" runat="server" SelectedValue='<%# Eval("Country") %>'
DataSource="<%# GetCountries() %>" DataTextField="Text" DataValueField="Value" />
</EditItemTemplate>
<InsertItemTemplate>
<asp:DropDownList ID="ddlCountry" runat="server" SelectedValue='<%# Eval("Country") %>'
DataSource="<%# GetCountries() %>" DataTextField="Text" DataValueField="Value" />
</InsertItemTemplate>
</asp:ListView>
The Insert row in the ListView has an empty DropDownList and GetCountries() is not called. However, if I click the Edit button on an existing row, GetCountries() is called twice (not sure why) and the DropDownList is properly populated. Why isn't the InsertItemTemplate DropDownList getting populated?
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Aug 9, 2010
I have a dropdown list in ListView control in InsertItem Template. I want to bind the DropDownList when I Click on Link. I want to bind it in CodeBehind not to use Datasource. I tryed lot but not finding the DropDownList. See My Code....
<InsertItemTemplate>
<tr>
<td colspan="7">
</td>
</tr>
<tr>
<td colspan="7">
<table border="0">
<tr>
<td> </td>
<td>
Sector</td>
<td>:</td>
<td align="left">
<asp:DropDownList ID="DropDnSector" runat="server" ></asp:DropDownList>
<asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" Display="Dynamic"
ControlToValidate="DropDnSector" SetFocusOnError="true"
ValidationGroup="vgUpdate">*
</asp:RequiredFieldValidator>
</td>
</tr>
</table>
</td>
</tr>
</InsertItemTemplate>
lnkNew is my linkbutton outside the ListView
Code Behind:
Protected Sub lnkNew_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles lnkNew.Click
Try
lvSubscription.InsertItemPosition = InsertItemPosition.LastItem
lvSubscription.EditIndex = -1
BindDropDownList()
fn_ShowSubscriptionLevel(fn_BindSubscriptionLevelEvents)
Catch ex As Exception
fn_ShowMessage(ex)
End Try
End Sub
------------------------------------------------------------------------------------------------------------------
Protected Sub BindDropDownList()
Try
Dim objSector As IEnumerable(Of SystemBuilder.SystemBuilder_Sector)
Dim objSubscriptionLevel As SystemBuilder.SystemBuilder_SubscriptionLevel
Dim DDLSectorctrl As DropDownList
objSector = CSectorDB.CSectorInstance().GetAllSector()
If (lvSubscription.InsertItemPosition = InsertItemPosition.FirstItem Or lvSubscription.InsertItemPosition = InsertItemPosition.LastItem) Then
DDLSectorctrl = CType(lvSubscription.InsertItem.FindControl("DropDnSector"), DropDownList)
If DDLSectorctrl IsNot Nothing Then
DDLSectorctrl.Items.Add(New ListItem("--Select--", "0"))
For Each ObjRec As SystemBuilder.SystemBuilder_Sector In objSector
DDLSectorctrl.Items.Add(New ListItem(ObjRec.SectorText.ToString(), ObjRec.SectorID.ToString()))
Next
End If
ElseIf (lvSubscription.EditIndex >= 0) Then
Dim DDLSectorctrl1 As DropDownList
DDLSectorctrl1 = DirectCast(lvSubscription.Items(lvSubscription.EditIndex).FindControl("DropDnSector"), DropDownList)
If DDLSectorctrl1 IsNot Nothing Then
DDLSectorctrl1.Items.Add(New ListItem("--Select--", "0"))
For Each ObjRec As SystemBuilder.SystemBuilder_Sector In objSector
DDLSectorctrl1.Items.Add(New ListItem(ObjRec.SectorText.ToString(), ObjRec.SectorID.ToString()))
Next
objSubscriptionLevel = CSubscriptionLevelsDB.CSubLvlInstance().GetSubscriptionLevelDetailsBySubscrptionID(ViewState("ID"))
If objSubscriptionLevel IsNot Nothing Then
DDLSectorctrl1.SelectedValue = objSubscriptionLevel.SubscriptionID.ToString()
End If
End If
End If
Catch ex As Exception
End Try
End Sub
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Mar 22, 2010
I am using a Listview with InsertItemTemplate bound to a LinqDataSource with a child table in the ORM datacontext. This table has a relationship with a parent table in the OR/M datacontext. The record is to be inserted in the child Table. The parent table is bound to dropDownList in the InsertItemTemplate to provide a user friendly name. Using the ListView ItemInserted event in debug, I can follow the execution and no errors occur BUT no record is inserted. I confirm this by a showing all Table Data in the SQL Mgmnt Studio. The child to parent table seems to be causing the problem because when I delete the relationship in the OR/M .dbml , I am ABLE to insert records. I am using Scott Mitchells' Using ASP.net 3.5 ListView with Data Pager controls: Inserting Data as a model. I can provide code if required, but what is going on with the deleting of the relationship between child and Parent.
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Mar 30, 2011
I need to bind drop down list inside InsertItemTemplate in ListView.
[Code]....
but method GetData() never calls. How can I bind DropdownList ?
View 6 Replies
Jan 11, 2010
It becomes more and more complicated, how can I access the commandArgument of a LinkButton inside a ListView that is in a Accordion control?
View 5 Replies
Nov 8, 2010
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
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Jun 21, 2010
I've googled around for a couple of days now and tried different solutions posted here and there, but nothing has worked so far. Therefore I'm forced to write a new thread about this subject.
I'm working on a solution containing nested listviews. The top listview lists different projects, and in each project a nested listview lists images from that specific project using a nested sqldatasource. Inside the nested listview I want the user to be able to add new images, and i'm using the InsertItemTemplate of the nested listview. When inserting a new image, the project need to be specified, as the project is a foreign key in my image database. The problem is that in my InsertItemTemplate, "Bind" and "Eval" does not work (I believe this is by design). Therefore, when adding the new image I don't have access to the project. I'm using the ItemInserting event of the nested listview to upload the image, and the optimal solution would be to have access to the project in this event and just pass it on as a parameter.
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May 27, 2010
I have ListView and I inside InsertItemTemplate that has two control: TextBox and Button.
If User click on the Button OnClick event is raised but I don't see how I can get the TextBox.Text property.
I have tried
TextBox
t = (TextBox)ListView1.FindControl("txtAddMessege");
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Oct 5, 2010
How to Read value of Label which is inside the ListView?
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Nov 8, 2010
I have tried this but it does not work:
Dim txt As TextBox = CType(lv2.Items(lv2.SelectedIndex) _
.FindControl("txtCode"), TextBox)
View 1 Replies
Aug 19, 2010
I have a ListView which is filled by generic list of type MyClass. I can easily bind data from this list into ListView. But I have problems with reading data in opposite direction. This is my class:
[Code]....
I have also generic list of type MyClass:
[Code]....
Finally I bind data to ListView this way:
[Code]....
My ListView template:
[Code]....
How can I read data from ListView into my List list?
The operation of reading ListView data into List generic list should begin after clicking the button "GetData".
I saw the following advice:
[Code]....
but it does not work - the DataItem property of each Item of ListView has null value. The point is that I have generic list with data. I am binding this data into ListView which can be edited by user. After that after click Save or GetData data from ListView is read into generic list of MyClass type.
View 8 Replies
Feb 10, 2011
can i add commandname or commandargument to a checkbox-control in a gridview?
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Nov 23, 2010
For a given MS SQL Database table of staff members, I'm using ASP to display each record line by line as follows:
So I've added 2 ImageButtons in an extra column and the problem I have is passing the record id as a CommandArgument to redirect to a secure page where the record can be edited or deleted.
Here's some code:
[Code]....
[Code]....
ctdRdr(0) evaluates to the ID value for the the record. )
When I click on the 'Delete' ImageButton the URL in the Response.Redirect becomes:
ctdirectory_secure/deletemember.aspx?id=<%@%20ctdRdr(0)%>
instead of, say:
ctdirectory_secure/deletemember.aspx?id=435
I'm assuming that a <%= expression %> cannot be used to set a control parameter, but how else can I do it?
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Jul 30, 2010
The situation: a FormView with an EditItemTemplate and an Insert Item Template. When the page is entered and a record exists in the datasource, everything is fine with the Formview in Edit mode and the Edit ItemTemplate being used. But when no record is present, the FormView uses the EmptyDataTemplate even though it was switched it to Insert mode. Here is the code used to switch modes, fired in the OnDataBound event:
protected void SetModeAndHeadings(object sender, EventArgs e)
{
if (FormView1.DataItemCount == 0)
{
FormView1.ChangeMode(FormViewMode.Insert);
}
else
{
FormView1.ChangeMode(FormViewMode.Edit);
}
etc...
}
Is the problem that it switched to Insert mode too late? What has to be done differently here to automatically switch between Edit and Insert modes?
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Mar 14, 2011
I 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
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Sep 18, 2010
I thought this one would be easy, but no go. What I am trying to do is the following: I have two DropDownLists in my InsertItemTemplate, each bound to its own datasource. After the fields in this form have been filled out and the ItemInserting event fires, I rebind the ListView to its datasource, but the DropDownLists turn out empty. I tried to bind them in the ItemInserting event and it seems they get filled, but nothing shows up in them when the page loads. I also tried to fill them in the ItemDataBound event, but the e.Item.ItemType == InsertItem doesn't do it.
How can I fill those DropDownLists?
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Jul 8, 2010
I am new to asp.net and am hoping this is an easy question. I have a gridview and then I have a couple of dataviews whose sqldatasources looks to the gridview' to be populated based on an ID number in the first column. If there are no rows returned to the dataviews, I generate an insertitemtemplate.
The problem is that I want to pass the value from the ID column in the Gridview over to the insertitemtemplate (because I don't trust the end user to get the ID right). The insertitemtemplate is now blank in all fields. ( I'm doing this in C#).
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Jan 20, 2011
I have a gridview and I have a link button that fires the onrowcommand event. In the method I have
protected void SelectCreditCard(object sender, GridViewCommandEventArgs e)
{
int index = Convert.ToInt32(e.CommandArgument);
}
But I get the error input string in incorrect format.
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Dec 1, 2010
I have GridView in UserControl (ascx) who is in another ascx.
[Code]....
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Oct 29, 2010
I have a Detailsview grid with an SqlDatasource, this DVG is only going to be used to insert records. The primary purpose of the DS is to populate a DDL control in the insertItem Template that I created my code is this:
[Code]....
The DDL control populates correctly, but when I try to modify the INSERTCommand property in my DS, I try to assign the value to my parameters "TesterID" and "TesterDate" but the only options for controls to pick from, is the DGV but not the DDL in it. I assume it has to do with the InsertItem template but even if I reset it I still cannot pick the textbox as a control that would give the value to my parameters.
I did find a workaroun by build a public method and calling it in the onclick event of the insert button but looks like I have to create another connection to the database which to me seems unnecessary since I already have a DS and everything. how can I do this without having to use my method. here is my method just in case.
[Code]....
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Jan 29, 2010
I have a gridview set up as follows:
[Code]....
Now, as you can see I've set up the commandargument, and was expecting to get to that in my code behind file. My code is as follows:
[Code]....
Ok...so far so good, and as long as I'm the only one working on the system it works fine. The problem is if this scenario happens:
* I go to the page and look at the gridview
* Someone else enters a new record into the database, causing the first row to contain a new record (not displayed in my browser)
* I click select.
What happens then is that, for some odd reason, I will get n numbers higher than the one I actually selected (n = num_added -num_removed).
I was under the impression that the commandargument wouldn't change for my session as long as I didn't refresh the gridview...?... There are no ajax or anything else messing with postbacks or viewstate as far as I can see..
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May 7, 2015
I want to pass single character passed when i clicked in the linkbutton.
and how i access this at code behind file.
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Nov 10, 2010
I have a ObjectDataSource and a ListView referencing it.
I have created a Templated User Control (see:
http://msdn.microsoft.com/en-us/library/36574bf6.aspx) and placed it in the ListView's InsertItemTemplate
It has one template <ContentTemplate>. Inside that template, I've defined a couple of server controls with their properties = '<%# Bind("colName") #>'.
See below:
[Code]......
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