[Code]....
I created a GridView that uses a custom paging method that allows for alphabetical paging. I seem to be having some problems now rebinding the GridView after a delete occurs. The row is deleted, it's just that the rebinding doesn't happen so to the user it looks like the delete failed. Been over and over my code and can't understand why. See the final block which is supposed to fire on the GridView1_ItemDeleted event.
I have a GridView and Formview attached to the same ObjectDataSource.
Everything is working ok so far.
If I enter new search criteria and click "Search", both the GridView and FormView rebind properly to the ObjectDataSource results. And I am able to page through the FormView records and they match the GridView records above.
When I click a sort link in the GridView, the ObjectDataSource returns the correct results based on the header link's commandName of 'Sort' and the CommandArg of 'SortExpression'.
The only thing wrong now is on the sort, the formview records do not reflect the reversing of the sorted record order. If I page through the FormView the records remain in the same order.
Why does the FormView not recognize the ObjectDataSource's changed results on the sort post back (even if it is only the sortExpression parameter of my ODS select method).
How do I get the FormView to rebind to the new ODS result set? I have called formview.DataBind() from every event I can think of. That does not seem to work either.
How do I reference the delete button to add the delete confirmation box when I have both the Edit and Delete buttons as the last two columns in the Gridview control. The following code works fine without any issues when I have the delete button only:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType != DataControlRowType.DataRow) return;
int lastCellIndex = e.Row.Cells.Count - 1;
Button db = (Button)e.Row.Cells[lastCellIndex].Controls[0];
db.OnClientClick = "if (!window.confirm('Are you sure you want to delete this record?')) return false;";
}
But, when I have both the Edit and the Delete buttons, I get the following error when I click the edit button while the delete button works fine.
Specified argument was out of the range of valid values. Parameter name: index
How do I reference the delete button so the edit button is not affected in this case?
Using "Enable Delete" from Gridview control, I can delete (besides, update, sort, paging, etc) data from the database (this is done automatically). However, how can I delete the actual image that resides in my image folder (i.e. from "pix" folder )? What is the best way to delete image? If using code behind, how? Please write a full code for me. Here is my source code.
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="photoID"
I am using Sharepoint Designer and trying to insert a Delete button into a gridview. I added this to the top of my ASPX:
<%@ Register Tagprefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls"
Assembly="Microsoft.SharePoint, Version=11.0.0.0, Culture=neutral,
PublicKeyToken=71e9bce111e9429c" %>
and I added this as a Gridview column:
<SharePoint:DeleteItemButton
runat="server"
ID="CustomFormDeleteItemButton"
ControlMode="Edit"
/>
and this is the error I get:
An error occurred during the processing of . System.Web.UI.WebControls.DataControlFieldCollection must have items of type 'System.Web.UI.WebControls.DataControlField'. 'SharePoint:DeleteItemButton' is of type 'Microsoft.SharePoint.WebControls.DeleteItemButton'.
I have a gridview with edit and delete parameters enabled. When I click on the edit link, I can edit the record successfully. However when I click on the delete link, nothing happens (the record does not get deleted).
View 5 RepliesI m using two radio buttons, The binding of the data to chart switches according to the radio button selection, but it shows only the data that is selected for the first radio button
View 4 RepliesI am able to dynamily bind my grid to the cube based off the facillity I have selected. Now, if a facility has multiple cubes, I want the users to switch between the two cubes dynamicly, so I have created a drop down list showing their cubes and the ones that they can select. Currently I'm been trying several things in order to "rebind" the data but they don't seem to be working, so I figured I would attach my code to see if anyone Had a good idea.
If I make the cube change then switch back over to change facility and then back to the page, the new cube will load. So I have to find a way to do it in the one step rather then have them navigate to another page and then back again. Perhaps auto navigate them to a page and have that page send them back etc... Anyway here is the code: I first bind the data via the page_prerender call
[Code]....
Then the code drops down into the LoadCube(FacilityID) sub routine
[Code]....
Then here is the setup for the subroutine that will call the page load/ should change the cube to the correct cube.
[Code]....
I have a text box in a FormView that I use to display the return value from the stored procedure that I'm using to maintain the data. For assorted reasons, I'm not able to use the built in ability of the FormView to manipulate the data.
I have the following code at the end of the procedure that calls the stored procedure. It is a snippet that omits the bulk of the procedure.
[Code]....
As is, the label text is updated with the message. However, when I uncomment out the code that manipulates the SQL Data Source and rebinds the FormView, the label text is NOT updated. I can't figure out why it craps out.
1) AdvisoryMessageText is declared at the class level for the code behind, so it should be retaining the value across all of the procedures as their caloled.
2) TextBoxAdvisoryMessage is contained within the FormView EditTemplate.
I have a Gridview (VS2008 3.5) which has a Edit Button and a Delete button.he Delete button deletes the row without confirming deletion with the user first. ow can I use the Confirm/Delete Confirm from Ajax Toolkitif possible and if not, is there a way to Confirm/Delete with user firstwhen using Gridview?
View 6 RepliesThe chart on my project is populated click of a button using Chart1.DataSource = The data the chart displays depends on the selection made from a series of drop down lists before the button is clicked. I need to be able to create the chart, then be able to change the selections of the drop down lists and click the button again to show the new data but I am getting the error "A chart element with the name 'element name' already exists in the 'SeriesCollection'" Do I need to "unbind" the data/series before re-binding and resetting the properties of the chart each time the button is pressed?
View 10 RepliesI am working with a formview edititemtemplate. Currently in my page load, i have some stuff that would show or hide certain panels based on dropdownlist values. These dropdown values get binded during page load. I need to be able to change the values/dropdowns, without rebinding the old data, and updating the visibility of the panels based on predefined rules.
I have experimented with putting my formview.databind() in page load if isnotpostback, in prerender, in prerender if isnotpostback. I have tried my rules (ex if ddlState.selectedvalue = "DE" then pnlDelaware.visible = "true") in the page load, and the page render. I'm just not sure how to get the stars aligned here. The closest i have come is having the databind in the pageload if notispostback, and the rules in the prerender. However I get an error "dropdownlist has a SelectedValue which is invalid because it does not exist in the list of items.
I want use Delete and Edit button in my gridview that when user click on delete button it delete the content of row or if they click on edit button they can edit selected row.
View 1 RepliesA very simple question.
I am trying to delete a row from a Gridview but getting error in my Gridview1_Rowdeleting method on the line Gridview1.DataKeys(e.RowIndex).Value;
Error: Method, delegate or event is expected. Here is my Gridview
<asp:GridView ID="GridView1" runat="server" OnRowDeleting="Gridview1_Rowdeleting" DataKeyNames="RecAdvId">
<asp:buttonfield headertext="Delete" commandname="delete" datatextfield="MessageId" />
<asp:BoundField DataField="RecAdvId" HeaderText="RecAdvId" Visible="false" SortExpression="PanelId"
HeaderStyle-HorizontalAlign="Left">
</asp:BoundField>
<asp:BoundField DataField="Advert" HeaderText="Advert" HeaderStyle-HorizontalAlign="Left">
<HeaderStyle HorizontalAlign="Left" />
</asp:BoundField>
</asp:GridView>
Here is my code behind method which gives error:
protected void Gridview1_Rowdeleting(object sender, GridViewDeleteEventArgs e)
{
int x = _Gridview1.DataKeys(e.RowIndex).Value; //Error: Method, delegate or event is expected.
}
Try to delete a row in a gridview and get this error:
Parameter '@ID' must be defined.
Have tested the sql command in the query builder. I use Mysql and c#.
Here are the code:
<asp:GridView ID="GridView1" AutoGenerateEditButton="true"
AutoGenerateDeleteButton="true" runat="server" DataSourceID="MySqlDataSource1"
Width="350px">
</asp:GridView>
<asp:SqlDataSource ID="MySqlDataSource1"
ConnectionString="<%$ ConnectionStrings:processdbConnectionString %>"
ProviderName="<%$ ConnectionStrings:processdbConnectionString.ProviderName %>"
SelectCommand="SELECT * FROM computers"
UpdateCommand="UPDATE computers SET Priority=@Priority WHERE ID=@id"
DeleteCommand="DELETE computers WHERE ID=@ID"
runat="server">
I have an empty gridview with imagebutton,fileupload control,upload and delete buttons. I have uploaded one image to imagebutton through upload button. How to delete that row from the gridview.
I am using this code to delete a row
protected void grdImages_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "Delete")
{
int deleteRowIndex = int.Parse(e.CommandArgument.ToString()); // Here i am getting the rowindex
if (grdrow.RowIndex == deleteRowIndex)
{
grdImages.DeleteRow(deleteRowIndex);
grdImages.DataBind();
}
}
}
Its not deleting the row. What could be the problem??
I have a gridview control on my page that lists records and sorts them according to the most recent to the oldest record. The most recent record is first record at index 0, and I want the users to be able to only delete the first record in Gridview. Is this at all possible? I'd like there to be the word 'Delete' next to the first record only.
View 4 RepliesI followed your article as below:
[URL]
I am doing exactly what you have shown in the above article. What i want to do is also add a link button to remove the row.. how to do that?
I have a grid contol that allows delete what I would like to have is someway to say Are you sure you want to delete?I found this code online, and tried it but it did not work, Do I need something more some behind code maybe?Here is what I found online:Adding 'Delete Protection' to controls If you use a control set up to allow Delete, the Delete button gives a straight delete without any warning, which can be dangerous.To give a warning dialog box, add an OnClientClick event to the Delete button, as follows.
<asp:LinkButton
ID="DeleteButton"
runat="server" CausesValidation="False"
CommandName="Delete"
OnClientClick="return confirm('Are you sure you want to delete this record?');"
Text="Delete">
</asp:LinkButton>
Here is my code: You can see where I added the code from above.
<ItemTemplate>
ID:<asp:label id="IDLabel" runat="server" Text='<%# Eval("ID") %>' /><br />
Name:<asp:label id="NameLabel" runat="server" Text='<%# Bind("Name") %>' /><br />
Destination:<asp:label id="DestinationLabel" runat="server" Text='<%# Bind("Destination") %>' /><br />
OutDate:<asp:label id="OutDateLabel" runat="server" Text='<%# Bind("OutDate") %>' /><br />
ReturnDate:<asp:label id="ReturnDateLabel" runat="server" Text='<%# Bind("ReturnDate") %>' /><br />
LeaveTime:<asp:label id="LeaveTimeLabel" runat="server" Text='<%# Bind("LeaveTime") %>' /><br />
ReturnTime:<asp:label id="ReturnTimeLabel" runat="server" Text='<%# Bind("ReturnTime") %>' /><br />
ContactNumber:<asp:label id="ContactNumberLabel" runat="server" Text='<%# Bind("ContactNumber") %>' />
<asp:linkbutton id="EditButton" runat="server" CausesValidation="False" CommandName="Edit" Text="Edit" />
<asp:linkbutton id="DeleteButton" runat="server" CausesValidation="False" CommandName="Delete" OnClientClick="return confirm('Are you sure you want to delete this record?');" Text="Delete" />
<asp:linkbutton id="NewButton" runat="server" CausesValidation="False" CommandName="New" Text="New" />
</ItemTemplate>
I have a gridview on my page which is bound to an objectdatasource that gets Data from an Images Table in my database.The delete button is enabled and I have this code in my DAL.ELETE FROM [Images] WHERE (([ImageId] = @ImageId))Instead of deleting just 1 image, I want to give a user the option to delete multiple images at once.
View 10 Replieshow to delete a row only from gridview not the database?
View 4 Repliesiam insert data through gridview using datable, and i have 2button , insert and delete button , i wants to delete a row from the gridview using delete button below the code i constructed for insert, how to delete the row.
protected void Button2_Click(object sender, EventArgs e)
{
//delete button
} [code].....
When you push Gridview delete button, I want to alarm "do you want to delete register" . I searched in the internet and I wrote the code like that.
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="lnkbtndelete"
CommandName="Delete" runat="server">
[code]...
I added a Gridview to my page and added a new item a delete button, now when i push that button there is an error... Do I need to add some code for it? And yes, can you give an example?
View 3 RepliesI have a gridview control in a webform which is shown below:
[Code]....
The desire is to remove a row both from the gridview and from the backend SQL Database table. So far I have written the following code:
[Code]....
The comments shown in the else clause of the if-else indicate the code that