Forms Data Controls :: Code Behind Delete For Gridview - Null Value For Selected Row?
Jan 7, 2011
I have a link button that I want to function as delete. I have to do it this way because I want confirmation before allowing deletes. In my debugger, I flagged this block of code and run it line by line. For some odd reason, it thinks my selected row. Maybe I'm overlooking something? Here's my code behind source:
[Code]....
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Jul 6, 2010
I have a asp.net page where I am having a treeview and a Gridview. Based on the checked node I am adding row in Gridview, If user Click add button.
And I have a Remove button the page. If i click remove button then i need to delete the selected record from Gridview.
Below is my code for add.
[Code]....
How can i delete the selected row and bind the grid again.
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Mar 25, 2011
I have a "UserDetail" table in my "JobPost.mdf". I have a "Gridview1" showing the column from "UserDetail" table,which has a primary key "UserName". This "UserName" is originally saved using Membership class function. Now I add a "Delete" linkbutton to the GridView1. This "Delete" is not autogenerate button,I dragged inside the column itemtemplate from ToolBox. The GridView1's columns now become "Delete_LinkButton"+"UserName"(within the UserDetail table)+"City"(within the UserDetail table)+"IsAdmin"(within the UserDetail table)
What I need is that by clicking this "delete_linkButton",it will ONLY delete the entire User Entity on the same row (link by the corresponding "UserName") from the "UserDetail" table,as well as delete all information from the AspNetDB.mdf (User,Membership,UserInRole,etc). I would like to fireup a user confirm,but not mandatory. At least I am trying to make it functional in the correct way.
[Code]....
When I click "delete" on the first row, I need all the record about "ken" inside the "UserDetail" table to be removed. Meanwhile, all the record about "ken" in the AspNetDB.mdf will be gone, including UserinRole table. I am new to asp.net, so I don't know how to pass the commandargument of the "Delete_LinkButton" to the code-behind file LinkButton1_Click(object sender, EventArgs e), because I need one extra parameter "UserName". My partial code is listed below:
[Code]
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Jan 13, 2010
I have a gridview with checkboxes
<asp:GridView ID="gv" runat="server" DataKeyNames="Id" AllowSorting="True"
AutoGenerateColumns="false">
<Columns>
<asp:TemplateField >
<ItemTemplate>
<asp:CheckBox ID="chk" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="System_Date" HeaderText="System Date" />
</Columns>
</asp:GridView>
in button click event how to find checkbox control and delete selected row from gridview i binded gridview with datatable
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Mar 25, 2011
I have a "UserDetail" table in my "JobPost.mdf". I have a "Gridview1" showing the column from "UserDetail" table,which has a primary key "UserName". This "UserName" is originally saved using Membership class function. Now I add a "Delete" linkbutton to the GridView1. This "Delete" is not autogenerate button,I dragged inside the column itemtemplate from ToolBox. The GridView1's columns now become "Delete_LinkButton"+"UserName"(within the UserDetail table)+"City"(within the UserDetail table)+"IsAdmin"(within the UserDetail table) What I need is that by clicking this "delete_linkButton",it will ONLY delete the entire User Entity on the same row (link by the corresponding "UserName") from the "UserDetail" table,as well as delete all information from the AspNetDB.mdf (User,Membership,UserInRole,etc). I would like to fireup a user confirm,but not mandatory. At least I am trying to make it functional in the correct way. for example:
Command UserName City IsAdmin
delete ken Los Angles TRUE
delete jim Toronto FALSE
When I click "delete" on the first row, I need all the record about "ken" inside the "UserDetail" table to be removed. Meanwhile, all the record about "ken" in the AspNetDB.mdf will be gone, including UserinRole table.....
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Apr 12, 2010
I am using VS 2008 SP1. My also have included CSS Friendly adapter [URL] in my project ( I mentioned this because my GridView Empty data template is not showing when using GridView's CCS Friendly adapter). I have a GridView and a DetailsView. When a record in GridView is selected its details information is shown in the Details View. Type of Data source I am using is ObjectDataSource. My Insert and Update methods works perfectly. It is only the Delete method that is passing null values to the underlying object delete method. My source codes for both the UI, BLL, DAL is shown below
[Code]....
My Business Object code is below :
[Code]....
My Data Access Layer Code is:
[Code]....
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Apr 28, 2010
I have a grid view with the delete option enabled. When the user clicks on delete, that entry in the database is deleted. However, each entry in my database corresponds to 2 images on the server. When that entry in the database is deleted, I also want to delete the images. (the images consist of the ID for that database entry plus "right.jpg", and "left.jpg") Is there a simple way to do this? My thoughts are that I need to run some additional code when the user clicks the delete button, but how can I trigger this code?
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Oct 13, 2010
I'm using the code below to extract data from a gridview and populate it into textboxes for the days and two drop downs for Project and Category.
For some rows in the gridview everything but the category ddl populates correctly. If I click the row a second time the category ddl displays the correct category.
why I have to click twice for some rows? And how do I fix this?
[Code]....
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Feb 5, 2010
I need code for gridview context menu like edit, delete,cancel
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May 7, 2015
I want to delete   grid view row on button click .when I select  a row and click on  delete button the selected row should be delete using jquery,with out using database . I want to do this work on button click using jqueryÂ
Following the my jqury code for delete
<script type="text/javascript">
$(function () {
$("[id*=GridView1] td").hover(function () {
$("td", $(this).closest("tr")).addClass("hover_row");
}, function () {
$("td", $(this).closest("tr")).removeClass("hover_row");
[code]....
i am working without using data base only delete from gridview.
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Jul 2, 2010
GridViewDetails uses templatefields. In edittemplate I put a button called "ButtonUpdateAdjustAmount" with OnClick="Update_AdjustAmount" in the EditItemTemplate for the "Amt to be Adj" column. There is also a textbox. My user's should be able to edit the textbox, but I also want the ability to click the button and the textbox populated with the correct calculated value. The formula varies based on the "code" column which is a dropdownlist called "DropListCode".
I am fairly new to asp.net, vb, etc...so forgive my code writing. Eventually I need to also put the same functionality on the insertrow for my gridview. But first wanted to get the edit one working. I am using templatefields for all columns and the FooterTemplate to perform the Insert New Detail Line.
I can get the functionality to work for the first data row and only if I take out the If code.SelectedValue = ... line and leave 1 static formula. However that isn't going to work. If DropListCode.SelectedValue is DNR then AdjAmt should be ((q_ordered - q_received) * cost). If DropListCode. SelectedValue is OV then AdjAmt should be (RKNumber * cost). If DropListCode.SelectedValue is NB the AdjAmt should be ((q_received - q_ordered) * cost). If DropListCode.SelectedValue is DAM then AdjAmt should be (RKNumber * cost)
Code behind for the OnClick:
[Code]....
.aspx page - GridViewDetails programming:
[Code]....
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Nov 18, 2010
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?
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Feb 3, 2010
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"
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Apr 6, 2010
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'.
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Dec 6, 2010
I have setup my business object to have a create_date and edit_date members both datetime datatypes. My company want to display the create_date and edit_date fields in a gridview for each transaction. The problem i have is that after insterting a record it will have a valid create_date but no edit_date and when displayed in the gridview it defaults to datetime.minvalue (My default). How on earth do i show an empty field in my gridview for a null datetime field in the database?
I am using similar architecture to the Imar Spaanjaars example of a tiered solution. With a few small tweeks it has worked well for me for ages. I am passing a List<Database> to my object datasource which connects to my gridview.
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Feb 1, 2010
I have a ListView which I populate using DataTable.
In each row I have a delete button. When the user clicks on the delete, that particular row is deleted in the DataTable Table.
After I perform the delete, I want to avoid page reload just to populate the ListView with the new set of records without showing the deleted row.
I suppose LINQ is the best choice for this. But I am unable to implement it.
[Code]....
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Sep 1, 2010
on my aspx I have the below DDL
<asp:DropDownList ID="ColorDDL" runat="server" DataSourceID="ColorObj"
DataTextField="Size" DataValueField="BustId" Width="150px"
AppendDataBoundItems="True">
<asp:ListItem Value="-1">(Optional)</asp:ListItem>
</asp:DropDownList>
If the user does not select an item I get an exception when i call the ObjectDataSource Method and DAL as below to insert into database
ProfileObj.InsertParameters["ColorId"].DefaultValue = ColorDDL.SelectedValue.ToString();
What I want to do is insert a database NULL instead.
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Sep 30, 2010
I have two gridviews on same page - If a record is selected in Gridview1, I need to unselect a record (if one is selected) in Gridview2 - and vice-versa.
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May 7, 2015
I want to delete selected item of dropdownlist on Delete button click
Hint :1-It should also delete value from Database.
 2-I want to Delete with the id of that selected item.
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Feb 22, 2010
tell me what is the best way to add Delete and Edite to a repeater control using C# code.
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May 7, 2015
Here i want Do project with Angular js..
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Jul 25, 2013
How to delete the row if checkbox is checked using listview of asp.net with c# ....
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Feb 5, 2011
I have a listview
Each row has a Radio button in the first column.
User will select multiple rows(Records) by checking the radio button and then click a submit button.
No postBack should happen untill the submit button is clicked.
How do I then get the RecordID from each of the selected row in code behind.
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Dec 30, 2010
I have gridviwe having 2 columns:
1) DocNumber 2)Title
query select docnumber,title from tbl_docs.
BindwithGridviwe(sql);
Now the issue is that that every document doesn't has document number. I want to make invisible the docuNumber column of the grid viwe if all values in the docNumber retrieved are null.for example:
docnumber tite
null Document 1
null Document 2
null doucment 3
null document 4
if returned result match above where all docnumber are null then make the gridviwe docnumber column ivisible eslemake the greidviwe column visible.
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May 20, 2010
I want delete, edit, select items is in grid view i have to do in c# code it will reflect to database also
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