Forms Data Controls :: How To GridView Is Not Updated
Apr 7, 2010I have a GridView, and its GridView_RowUpdating() method is called, and NewValues are set correctly... but at the end the database is not updated.
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I have a GridView, and its GridView_RowUpdating() method is called, and NewValues are set correctly... but at the end the database is not updated.
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I have a gridview bind to an object datasource Now there is an edit button to edit the entriesUser selects new entries and clicks update Gridview gets updated (all previous entries replaced)Now the new records dont contain the table id of the previously added rowsOn form update, how do I know which entries to drop from database and which entries to insert as the previous rows are all gone?the results are in form of collections of objects returned by object datasource.
View 6 RepliesI have a simple grid with 5 columns. The first 4 are numeric values I have formatted with templates. The last column is a total and I've added the Update button on the end. When the Update button is pressed, I have it updating the table with the new values and calculating the Total column. My goal is to have the Total column calculated after each cell is updated and not when the Update button is pressed.
I've added CommandName="myUpdateRowTotal" to
my templates.
<ItemTemplate>
<asp:TextBox ID="R01_Item_txt" CommandName="myUpdateRowTotal" runat="server" BackColor="White"
Font-Names="Arial" Font-Size="10pt" ForeColor="Blue"
Text='<%# Bind("R01_TARGET_COMMISSION", "{0:###,###,##0}") %>'
Width="75px"></asp:TextBox>
</ItemTemplate>
There is a very common problem I am facing in my new webproject in gridview control.The sequence of the execution of the process is as follows:There are some search parameters in SearchPage with a gridview. In gridview's rows there is an Edit button.By providing search parameter(s), data populated to gridview and if we click edit button a new page opens as a popup to update record.In new page the record is updated fine. On successful updation user close the window but he goes to the Search page he again finds the same record with the same parameters to see changes it remains unchanged.Its only changed when he search another record and then again provides the previous parameters.I don't know why is this behaviour of gridview?
Any idea would be helpful.
I need to know how to check last updated rows in Gridview.
View 2 RepliesI have a GridView with an ItemTemplate and an EditTemplate:
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I am able to go into Edit Mode and once in edit mode I can see the textBox tbLogEntry fine. lblLogEntry is gone. I have left regular Item mode and am in Edit mode:
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gives me back the original value, not the new one.
How do I get the edited value from the front end textbox?
I have been struggling with this and it must be somthing I am missing. I have Griview and go to edit te row and when I click update and step through the rowupating procedure the value for CollectAmtEdit and txtCollectDate give te old values. If I do not bind them originally then they return blanks after I enter data in them. Here is the form Logic:
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Code behind:
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I have a grid view that is dynamically created.In which every cell in the girdview has a 2 textbox (cTxtboxQty,ctxtWorkOrder) and 2 label.
When user click on the cell, a pop up come out and user are able to change the text inside the cell and click save.After that the pop up close and changed data immediately reflected on the screen.
My problem is:
After my data are changed and updated to database on the pop up page and having it post back to the parent page , my dynamically created textbox in gridview retain old value even new value has been assigned to it.
This sound very weird but i have no idea how to solve this.
My client side code is as below :
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I have tested many times and find out that it might be the page hold the old value in memory, so that even we have updated the textbox value, after postback, it still keep and show the old value?
SqlCommand cmd = new SqlCommand();
cmd.CommandText = "UPDATE M_T1 SET c_name=@c_name WHERE rowid=@rowid";
cmd.Parameters.Add("@rowid", SqlDbType.Int).Value = Convert.ToInt32(grdmsal.Rows[e.RowIndex].Cells[1].Text);
cmd.Parameters.Add("@c_name", SqlDbType.VarChar).Value = ((TextBox) grdmsal.Rows[e.RowIndex].Cells[2].Controls[0]).Text;
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I have the above but fater editing value when i update its not updated no error...
I am binding repeater control for mega menu, its working fine but i want to repeater do not load every time from database ,it load when any change or add in database ....
View 1 RepliesI have used the same steps that you have used on your sample for inserting, deleting and updating. This is my code
private String strConnString = ConfigurationManager.ConnectionStrings["CustomerConnectionString2"].ConnectionString;
protected void Page_Load(object sender, EventArgs e) {
if (!IsPostBack) {
BindData();
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It is deleting the data but not updating the data,it sticks to the same data after clicking on the update button...
I have been trying to achieve the following:
1-Allow the user to change the quantity in a textbox i.e // "txtQuantity"
2-capture the newly entered quantity i.e //int integerNewQuantity= int.Parse(textNewQuantity.Text);
3-update the database using the newly entered quantity i.e. //UpdateItem(data,integerNewQuantity)
Problem:1-I have not been able to capture the text i.e. the newly entered quantity i.e. the value entered in the text box "txtQuantity"
2-Hence the database is updated using the existing value and NOT the new value unless I make a constant assignment as below:
textNewQuantity.Text = "2"; When tested the assignment of any number correctly updates the database. see the c# code:
C# code: Version.1
protected void btnUpdate_Click(object sender, EventArgs e)
{
txtItemDescription.Text = txtItemDescription.Text + "from btnUpdate talking.."; [code]....
cmd.CommandText = "UPDATE tbl set SET c_amt=@c_amt,c_type=@c_type,status=@check WHERE id=@id";
cmd.Parameters.Add("@id", SqlDbType.Int).Value = Convert.ToInt32(GRD.DataKeys[e.RowIndex].Value.ToString());
cmd.Parameters.Add("@c_amt", SqlDbType.VarChar).Value = GRD.Rows[0].Cells[2].Text;
cmd.Parameters.Add("@c_type", SqlDbType.VarChar).Value =GRD.Rows[0].Cells[3].Text;
bool isChecked = ((CheckBox)GRD.Rows[0].Cells[4].Controls[0]).Checked;
cmd.Parameters.Add("@check", SqlDbType.Bit).Value = isChecked;
cmd.Connection = conn;
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
i have above code whcih gives me proper id on debug but whe i update the selected row gets updated with the first row value.
I have a gridview binded with data and i am providing to user edit command button in gridview s row command event i opened the new page in modal popup to edit the selected id record and after modify i close the popup here i want to refresh gridview with updated data. here is the code i used to open editdocument page in modal popup from gridview row command event
Dim webLink As String = "EditDocument.aspx?ID=" & gv.DataKeys(Item_ID).Values(0) & "&Mode=" & 1
ScriptManager.RegisterStartupScript(Me, GetType(String), " Done", "window.open( '" & webLink & "', '','resizable=yes,scrollbars=yes,status=yes,toolbar=no,menubar=no, height=580px, width=480px,left=350px,top=100px' );", True)
When I click the update button on my Gridview to update oracle database, it does not show the updated values..
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i want to compare my database value with my new updated value. what should i do ? e.g : on page load i am excuting one procedure which bring 10 columns and fill it against the 10 fields using for loop on the page. then i am changing value of two columns. ok. when i press update button then there is one more procedure which updates all the new and old columns into database. Its working fine. just i want to know that, should i update only two columns(which are modified) insted of updating all 10 columns ? Is there any csharp code that brings my page load columns into array and then compare it with new ones and updates only those columns which are mismatch with array. i am not sure but there is some way to do this.
View 4 RepliesI have an image file to be uploaded and to be updated in my database. I've already write the C# code based in a VB code.
However, I have some trouble to pass a data to be updated through DetailsView Control, by using
DetailsViewUpdateEventArgs e
The column in database is "ImageData"...
In VB the Code is:
e.Values(
"ImageData"
) = imageBytes
ImageBytes is an array of bytes..
have detailsview
<asp:DetailsView
ID="dtlviewRecommendation" DataSourceID="LinqDataSourceRecommendation"
DataKeyNames="PK_TT_RecommendationsSysId">
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I have a data bound control (using <%# Bind %>). I am trying to change the value of it before it gets udpated.
I use:
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But the value is not changed to 1.
Also, e.Keys, OldValues and NewValues are all empty for whatever reason.
On one (aspx) page I have a GridView (GridView has multiple pages). After a user selects a row/record and clicks "edit" he's redirected to another (.aspx) page where he edits the selected record via DetailsView. fter clicking update on DetailsView he's redirected back to the page containing the GridView.What is the simplest/shortest way that the updated record is automatically selected on the Gridview (e.g. at Page_Load event)?
View 7 Replieshow to reflects the updated values to the database when i changed values in the Grid view in asp...
View 3 RepliesI have a web page with a Form a Button, a TextBox and a DataGridView in it. The DataGridView uses a SqlDataSource as its data source. SqlDataSource has one parameter which gets it's value from a
form parameter (TextBox1). When the page is opened for the first time I set the TextBox1 default value in code behind:
protected void Page_Load(object sender, EventArgs e)
I have a datalist and gridview that have a image in a column.. when you click the imagebutton, its calls my method that updates a table. The page is posting during this event, but when the page is done, the image hasnt changed.. im sure it has to do with the datasource not binding during that click.. so where can i move this code to or can i simply bind the control during that click? Currently im handling it in the itemdatabound event.. which would explain it.. but where is the correct place to handle this logic?
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The control on the page is configured like so..
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I was trying to update a detail view from code behind (vb.net). I know how to fire the event but dont know where to put the DML query where i should do update and insert, i mean in which event?:
update.aspx
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update.aspx.vb
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No error but is not working.
So I am using a formview that gets in Update mode with a bunch of values from a sqldatasource --- but I want to fill a couple dropdowns with data from the database --- but I cannot figure out how to bind the data to the dropdown box FIRST and then select the value in that dropdown box... but I keep getting an error that the Selected value is not a part of the dropdown (I assume because the sqldatasource is trying to bind BEFORE I can get the dropdown box bound).
IE -- when I load my values, lets say a 'Crop' comes back as 'Corn' ... I want to download the available crops from the database (ie. corn, beans, wheat, okra, etc.) and then set the selected value as CORN.... SO HOW do I get the dropdown filled BEFORE I try and bind the selected value?