Datagrid(.net 1.1) to GridView(.net 2.0) and using the RowUpdating event how to extract the values from the controls.
Ok
This is the settings:
I use a Viewgrid with only itemtemplate colums for example.
<
asp:TemplateField HeaderText="Test"><ItemTemplate><asp:Label id="LBL_Test" text='<%# DataBinder.Eval(Container.DataItem, "Test1") %>' runat="server" meta:resourcekey="LBL_TestResource1"></asp:Label></font></ItemTemplate><EditItemTemplate><asp:TextBox ID="HDN_Test" Text='<%# DataBinder.Eval(Container.DataItem, "Test1") %>' Runat="server" meta:resourcekey="HDN_TestResource1" /></EditItemTemplate></asp:TemplateField>
The viewgrid is not in any way bound to a datasource and I want to manually extract values from the datagrid when a update event occurs and then manually set/update the new values in the database (using procedures).
Now I have tried several ways of getting the new values of the controls that are in the gridview control but are still just getting old values. Have been searching the net for solutions but...no use..
Some examples of code tried.(old code, msdn example code, other kinds of code).
Sub UpdateClick(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs)
Dim
test As Stringtest =
CType(GridView1.Rows(e.RowIndex).Cells(2).Controls(1), TextBox).Text()Response.Write(
"Value" & test)--Another way--
Dim
newvalue As Integer = _ CType(GridView1.Rows(e.RowIndex).FindControl("HDN_Test"), TextBox).Text()Response.write(newvalue)
--Another way--
Dim
gv As GridView = GridView1 Dim i As Integer = 0 While (i < GridView1.Columns.Count) Dim cell As DataControlFieldCell = gv.Rows(e.RowIndex).Cells(i)gv.Columns(i).ExtractValuesFromCell(e.NewValues, cell, DataControlRowState.Edit,
True)Response.Write(cell.Text)
i = i + 1
End While-- Another Way--
Dim index As Integer = GridView1.EditIndex Dim row As GridViewRow = GridView1.Rows(index)Dim lastName As TextBox = CType(row.FindControl("HDN_test"), TextBox) Dim firstName As TextBox = CType(row.FindControl("HDN_test1"), TextBox)
Response.Write(lastName.Text)
Response.Write(firstName.Text)
GridView1.EditIndex = -1
BindGrid()
End Sub
So what am I missing ?!?! Works great with the datagrid but not with GridView.
Could anybody provide some ideas... code examples .... anything..
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oleik
4/30/2007 5:50:25 PM
asp.net.presentation-controls
72751 articles. 
3 followers.
3 Replies
2770 Views
Hey,
I have a CheckBox in a TemplateField in one of my GridViews. You should be able to figure out what you need to do from my code below:
Protected Sub GridRowCheckBox_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) ' Get the CheckBox that triggered the event Dim cb As CheckBox = CType(sender, CheckBox) ' Get the row the CheckBox is part of so we can retrieve values Dim row As GridViewRow = CType(cb.NamingContainer, GridViewRow) ' First off, get the row id field value, which is use as the key for ' whether or not the checkbox row is already being tracked Dim key As Integer = Integer.Parse(row.Cells(1).Text) ' See if the checkbox was checked If (cb.Checked) Then ' See if this row has already been accounted for in the collection If Not (Me.CheckedItems.ContainsKey(key)) Then ' Add this key and the row values to the checkeditems collection Me.CheckedItems.Add(key, New Employee(key, row.Cells(2).Text, row.Cells(3).Text)) End If End If End Sub-Aaron
ASP.NET Weblog
http://weblogs.asp.net/aaronschnieder
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Schnieds
4/30/2007 7:09:37 PM
Thanks for the answer, might be the solution.
But do you in other words say that I need a handler for every different type of Itemtemplate so that each of them can catch changes for each column edited ?
Didn't need to use this in a custom datagrid design, then all the data was retrieved in the update event.
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oleik
4/30/2007 9:00:49 PM
No, I didn't mean to say that you need a handler for every ItemTemplate control you put in. What I was attempting to do was to give you some code that would show to how to grab the variables from the row on your Update function.
I think you should be able to use the above code in your Update event, grab all of the values you need and then use them as needed.
Hope that helps.
-Aaron
ASP.NET Weblog
http://weblogs.asp.net/aaronschnieder
Personal Blog
http://www.schnieds.com
My Business
http://www.churchofficeonline.com
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Schnieds
4/30/2007 10:28:16 PM
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Web resources about - Datagrid(.net 1.1) to GridView(.net 2.0) and using the RowUpdating event how to extract the values from the controls. - asp.net.presentation-controlsResources last updated: 1/22/2016 7:28:27 AM