Checkbox state in itemupdating event of listview - asp.net

Question

I have a listview displaying our current projects.
In the itemediting event handler of the listview, I have a number of checkboxes that are being rendered using nested repeaters. After rendering, I loop through all checkboxes and set the correct state based on data retrieved from the DB.
The idea is that I can check or uncheck any of the checkboxes, and the changes are saved in the db.
My problem lies with the itemupdating event handler: I am unable to retain the changed checkbox states. I rebind the nested repeaters, but this seems to overwrite the checkbox states that were set during editing.
Any pointers on how to retain checkbox states generated by a repeater in the edititemtemplate of a listview would be greatly appreciated!
Thanks
Stijn

Answer 1

First I bind the rptDepts repeater at itemediting
Public Sub lvProjects_OnItemEditing(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.ListViewEditEventArgs)
Dim rptDepts As Repeater = lvProjects.EditItem.FindControl("rptDepts")
rptDepts.DataSource = bllDept.getServices()
rptDepts.DataBind()
'get tasks for projectID
Dim hdnprojectID As HiddenField = lvProjects.EditItem.FindControl("hdnStudyID")
getTasks(hdnProjectID.Value, rptDepts)
End Sub
Then when rptDepts is databound, I bind the rptTasks repeater
Protected Sub lvDepts_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.RepeaterItemEventArgs)
'get tasks for service
Dim rptTasks As Repeater = e.Item.FindControl("rptTasks")
rptTasks.DataSource = bllDept.getTasksForService(e.Item.DataItem("pk_dept_id"))
rptTasks.DataBind()
End Sub
Then, at itemupdating, I rebind rptDepts (which you said I shouldn't do
Public Sub lvProjects_OnItemUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.ListViewUpdateEventArgs)
'this item
Dim itmProject As ListViewItem = lvProjects.Items(e.ItemIndex)
'rebind depts
'Dim rptDepts As Repeater = itmProject.FindControl("rptDepts")
'rptDepts.DataSource = bllDept.getServices()
'rptDepts.DataBind()
'update project
bllProject.updateProject(itmProject, lblTest)
'unset edit status
lvProjects.EditIndex = -1
'success message
pnlFeedback.CssClass = "success"
ltlFeedback.Text = "Project <b>" & txtName.Text & "</b> was successfully updated."
'rebind
bindProjects()
End Sub
But in the bllProject.updateProject method, I need to be able to reference the checkboxes to save the changes to the DB

Answer 2

If you rebind the nested repeaters, they will be updated from the original datasource (overwriting your changes). Try not rebinding.

Answer 3

Checked='<%# Eval("PreAcqClaim") ==DBNull.Value?false:true %>' MARKUP
------------------CODE BEHIND--------------------------------
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class Claim : System.Web.UI.Page
{
CheckBox OurFaultCheckBox = new CheckBox();
CheckBox PicturesCheckBox = new CheckBox();
CheckBox ReportedInsCheckBox = new CheckBox();
CheckBox ReportLateCheckBox = new CheckBox();
CheckBox AssistRepairCheckBox = new CheckBox();
CheckBox LitigationCheckBox = new CheckBox();
CheckBox PreAcqClaimCheckBox = new CheckBox();
DetailsDataTableAdapters.tblClaimsTableAdapter _adapter = new DetailsDataTableAdapters.tblClaimsTableAdapter();
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
lvDetails.DataSource = _adapter.GetDataByPK_Claim_ID(Convert.ToInt32(Request.QueryString["PK_Claim_ID"]));
lvDetails.DataBind();
}
}
protected void objDetails_Selecting(object sender, ObjectDataSourceSelectingEventArgs e)
{
}
protected void lvDetails_ItemDataBound(object sender, ListViewItemEventArgs e)
{
//CheckBox OurFaultCheckBox = (CheckBox)lvDetails.FindControl("OurFaultCheckBox");
//OurFaultCheckBox.Checked = true;
//OurFaultCheckBox = (CheckBox)e.Item.FindControl("OurFaultCheckBox");
//PicturesCheckBox = (CheckBox)e.Item.FindControl("PicturesCheckBox");
//ReportedInsCheckBox = (CheckBox)e.Item.FindControl("ReportedInsCheckBox");
//ReportLateCheckBox = (CheckBox)e.Item.FindControl("ReportLateCheckBox");
//AssistRepairCheckBox = (CheckBox)e.Item.FindControl("AssistRepairCheckBox");
//LitigationCheckBox = (CheckBox)e.Item.FindControl("LitigationCheckBox");
//PreAcqClaimCheckBox = (CheckBox)e.Item.FindControl("PreAcqClaimCheckBox");
}
protected void objDetails_Inserting(object sender, ObjectDataSourceMethodEventArgs e)
{
CheckBox OurFaultCheckBox = (CheckBox)lvDetails.FindControl("OurFaultCheckBox");
e.InputParameters.Add("OurFaultCheckBox", OurFaultCheckBox.Checked);
}
protected void objDetails_Updating(object sender, ObjectDataSourceMethodEventArgs e)
{
e.InputParameters.Add("OurFault", OurFaultCheckBox.Checked);
e.InputParameters.Add("Pictures", PicturesCheckBox.Checked);
e.InputParameters.Add("ReportedIns", ReportedInsCheckBox.Checked);
e.InputParameters.Add("ReportLate", ReportLateCheckBox.Checked);
e.InputParameters.Add("AssistRepair", AssistRepairCheckBox.Checked);
e.InputParameters.Add("Litigation", LitigationCheckBox.Checked);
e.InputParameters.Add("PreAcqClaim", PreAcqClaimCheckBox.Checked);
}
protected void lvDetails_ItemUpdating(object sender, ListViewUpdateEventArgs e)
{
DetailsDataTableAdapters.tblClaimsTableAdapter _adapter = new DetailsDataTableAdapters.tblClaimsTableAdapter();
OurFaultCheckBox = (CheckBox)lvDetails.EditItem.FindControl("OurFaultCheckBox");
PicturesCheckBox = (CheckBox)lvDetails.EditItem.FindControl("PicturesCheckBox");
ReportedInsCheckBox = (CheckBox)lvDetails.EditItem.FindControl("ReportedInsCheckBox");
ReportLateCheckBox = (CheckBox)lvDetails.EditItem.FindControl("ReportLateCheckBox");
AssistRepairCheckBox = (CheckBox)lvDetails.EditItem.FindControl("AssistRepairCheckBox");
LitigationCheckBox = (CheckBox)lvDetails.EditItem.FindControl("LitigationCheckBox");
PreAcqClaimCheckBox = (CheckBox)lvDetails.EditItem.FindControl("PreAcqClaimCheckBox");
try
{
_adapter.Update("eventNum", "jobNum","test", "1", DateTime.Now, "", "", "",
"", "", "", DateTime.Now, "", "", "", "54143", "", "", "",
OurFaultCheckBox.Checked, PicturesCheckBox.Checked,
ReportedInsCheckBox.Checked, ReportLateCheckBox.Checked,
AssistRepairCheckBox.Checked, LitigationCheckBox.Checked,
PreAcqClaimCheckBox.Checked,
Convert.ToInt32(Request.QueryString["PK_Claim_ID"]));
}
catch (Exception ex)
{
}
lvDetails.EditIndex = -1;
}
protected void ObjectDataSource1_Selecting(object sender, ObjectDataSourceSelectingEventArgs e)
{
}
protected void lvDetails_ItemEditing(object sender, ListViewEditEventArgs e)
{
lvDetails.EditIndex = e.NewEditIndex;
}
}