Forms Data Controls :: Delete Data Using Boung Field Value Inside Gridview?
Sep 8, 2010I want to delete data using boung field value inside grid view, I am doing this...but it is not finding bound field value
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I want to delete data using boung field value inside grid view, I am doing this...but it is not finding bound field value
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i have an item template delte button inside DataGrid, and i would like to didplay a confirmation box , once user try to delete row..
below is my code:
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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.
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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:
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What I want to do is to put a "(reported as invalid)" after the name in the GridView. However, I can't figure out how I can do this, or whether or not I should actually do it in the .aspx file. The field that I am going to check for validity is called invalid, and is a bit. Here's the GridView:
<asp:gridview id="grid" runat="server" datasourceid="sql" autogeneratecolumns="false" useaccessibleheader="true" allowPaging="true" pageSize="10">
<columns>
<asp:BoundField datafield="name" headertext="Name" />
<asp:TemplateField headertext="Link">
<itemtemplate>
<a target="_blank" href="<%# Eval("link") %>"><%# Eval("link") %></a>
</itemtemplate>
</asp:TemplateField>
<asp:BoundField datafield="description" headertext="Description" />
</columns>
</asp:gridview>
I have visual 2010 with net 3.5 web app. I was implementing EntityFramework in my project and added a gridview to a entity source control. It worked ok, with select, update, and delete buttons enabled on the grid. But then, i needed to add a template field bound to a Foreign table, so my users select value from a list instead of writing the code. After that, my app fires error when i delete. I tried everything, inclue dakeyNames, write code on my RowDeleting, RowDeleted, RowCommand, but error persists.
Now, i can delete the row, but it then i get the error Object reference not set to an instance of an object If i implemente delete code on RowCommand i get the error: Store update, insert, or delete statement affected an unexpected number of rows (0). Entities may have been modified or deleted since entities were loaded. Refresh ObjectStateManager entries.
OnSelectedIndexChanged event for the dropdown is the fired.
I have set the autopost back value = "true", EnableViewState ="true" for page tag and gridview tag.
I am trying to grab the UID of each row on botton click. However in my code behind I am only able to get the first row.
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I am brand new to programing and to ASP.net and I have a feeling I am really close to getting this.
I hav a gridview in which i display the project name,created date,Start time ,end time ,total hours along with the task id field which is visible=false.
My starttime and endtime format is 2010-10-13 03:00:00,but i want to display these two fields in dropdownlist ie.,only i want to display the HH:MM:SS in dropdown so that when the user changes the time it should be automatically be reflected in the total hours(6:0) field after updating.pls tell me what i have to do to bring the Hours ,minutes and seconds in dropdownlist into the cells of gridview with the value in database ,how to write the code.
in my module there are data of students for H.S.C., C.E.T, AND H.S.C+C.E.T. so when i run the gridview page all the data of all streams together is displayed so i sort the data using a dropdownlist...means if 1 select the H.S.C in dropdownlist only the H.S.C students are being displayed.so the problem is when i sort the data by selecting a stream in dropdownlist at that time the error message of required field validator is displayed...
1) I wil select the stream from Dropdownlist and click the "sort button"
2) After the data is been sorted and i will enter the values in the TextBox and if i'll miss any of the textbox blank and i click on the "submit button" after dat the error should be displayed
as "Required".
I want to show a column of database in footer of gridviewthe column name is Totalthis is my code but it shows 0
<asp:GridView ID="gvodinfo" runat="server" AutoGenerateColumns="False" onrowdatabound="gvodinfo_RowDataBound"
showfooter="true" >
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in my website there is a module in which i m fetching the data of present students in the gridview and i m entering there marks in the gridview textbox column (created by using item template)...I want to add required field validation to the textbox columns so that after clicking the submit button there should be an error message displayed if any of the textbox is empty...
View 1 RepliesHow 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 grid in which i have put the image when i sort the Data .
but when i export this grid Data into excel then in excel image is also display .
which i want to delete . How to do this
Can i put gridview inside gridview and bind data to that inside grid?
View 4 RepliesThis is my code and i am only able to edit the one data under the category school.But what i nd is to edit the other categories like the name,email...etc..how do i modify my code in the update command.Another thing is to delete the data how do i do that?
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I have 2 fields in my gridview one called ScriptType the other BagNo, when a user click the edit button, I would like the BagNo filed to be disabled if the ScriptType field is = "TTA" and enabled otherwise. How can I do this?..something along these lines see below..I am using VB..
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I want to hyperlink from a field in one gridview to a field in another gridview based on id. I've tried many ways but haven't seen success.
View 20 RepliesI have a grid view, and I add new column as a hyper link field, I want the navigationURL for this field to be Pageexample.aspx?ID=other field value like this
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is that possible ?
I have a repeater control and inseid it's ItemTemplate and AlternateItemTemplate, I have the following code (toy code):
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The problem is, when I click the button it shows a '*' in front of every textbox in odd or even items, instead of validating only the textbox in that item.
How can I validate only the text box inside the item in which the button being clicked resides?
I have loaded up a gridview object with data. I have turned on Edit on the grid. It lets me edit the data, but I also want to put some code to check for correct data in each field. I tried to assign a requiredfieldvalitor, comparevaliditor but they don't work. Is there an event I can capture to fire up some code before the grid sves my data?
View 3 RepliesI want to delete row data in gridview with rowdeleting, without the use sqldatasource, objectdatasource, LINQ, etc ...
View 5 Repliesbelow data are getting from the db
COL1 Col2
a b
c d
i want to bind the col1 and col2 value in one template field column inside gridview .is this possible means how to do this below is the format i expected. i don;t want to do this in db ..
COL
a(b)
c(d)
I have an UpdatePanel with a GridView. This GridView has a template column that is a DropDownList. The problem is that the SelectedIndexChanged event does not fire for the DropDownList. Here is the code:
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The codebehind:
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