Forms Data Controls :: DataTable To Update Database?
Sep 8, 2010DataTable to update database? tbl.Columns.Add("COL1");
View 2 RepliesDataTable to update database? tbl.Columns.Add("COL1");
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How can I Edit/Update, Delete and save record to database
i want to build a datagrid bound to a datatable with several columns. One column has only a dropdownlist with the number of the rows in the datatable.
Here a samplescreenshot:
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I know how to bind the columns to a grid and its no problem to create such a dropdown list with the content for me, too. But i dont know how to sort the complete datatabl after changing one value of one dropdown listbox.
So, how can i resort the values of a datatable column based on a given value and the datarow id?
I have gridview wich bind with dynamic datatable.
<asp:GridView ID="grdCountries" runat="server" AutoGenerateColumns="False" ShowHeader="False" OnRowDeleting="grdCountries_RowDeleting" DataKeyNames="country_id" BorderStyle="None" GridLines="None">
following is my code to update my database from a datatable. My rows are manipulated by my code perfectly. that i can see in my gridview but my database is not getting updated according to the manipulation
Code:
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I am trying to update a coulmn in datatable but keep getting error:
Input string was not in a correct format.Couldn't store < > in SortOrder Column. Expected type is Int32.
SortOrder is column of Type Integer that either contain Null or number.
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i got a problem to update my database which i bounded to datagrid. The problem is, i want to update my database only by clicking one update button at the bottom.. when the user click it, all the fields will be updated to database.
View 3 Repliesi want to update the data of a database through a gridview update button
how can i attach a dataconvertion like this
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If I am passed a datatable and I cant change the column structure..is there anyway to set an existing column to a Primary key so I can easily Find() the row I am looking for?
View 1 RepliesHow to display images in gridview using datatable (without database) in asp.net
View 1 RepliesI have a products table with 3 fields name, price and quantity, I need to fill a datatable with those 3 fields and using a foreach build a chain. I build my chain currently using a datagrid with my following code
this code work good.
string item_name;
string amount;
string quantity;
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but I like to form my chain directly from datatable, not rely on a datagrid.
When I am Exporting CSV Using Reader,Here Attached Coding for your reference,
PrecisionColumns = New String() {"Salequantity", "Salevalue", "Purchasequantity", "Purchasevalue", "Stockvalue"}
If Trim(Rdr.GetValue(I).ToString() <> "") Then
csv += Format(CDbl(Rdr.GetValue(I).ToString()), "0.00").Replace(",", ";") + ","c
End If
csv += vbCr & vbLf
Response.Write(csv)
... ...
I get precision in CSV file ,but when i open the csv file in excel Precision not showing, how to show precision on excel sheet...
Sometimes the database clears everything and keeps the original status record.I don't know why this won't update,
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How do I view rows in a table and then be able to update the image stored on the database for that specifc row?
View 1 RepliesAm trying to build a page that will display one record at a time. That is the user searches a records table and the page displays the record. Than when the user us done making any changes and clicks save, i want the page to update the records table. So far, i have the page displaying the search results, but the save functionality is not working. Actually after changing an entry and the save button is clicked, the records change are currently reverting back to the old data that they want to change it from. How do i go about updating the records in the database? Here is the code that I have been able to come up with so far.
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update database using data from dropdownlist on gridview C#
<asp:GridView ID="GridView" runat="server" AutoGenerateColumns="False"
I am using button field in gridview after user clicking a button data in the row want to add in my database table. i am using a storedprocedure to fill a data in grid achieve . i didnt know how to add a row field in database .
View 7 RepliesI have an admin page in which I need to change the list whenever a user signs up on our web site.How can I put and event to MySql database so that whenever the count of a table row changes it refreshes my update panel for me to see the new user.
View 2 RepliesMy gridview was working just fine until I converted the Officer Report collum to a templatefield so I could have a multiline text box. Now when I go into edit mode and press update, it doesn't update. I don't know what I am missing here?
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Here is the datasource information.
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I have a gridview with a button and when this button is pressed i want to update a database record that corresponds to that gridview post.
View 17 RepliesI am *VERY* new to ASP.net. This may seem simple to you all, but I'm really lost. I have a small sized page with three text boxes (part of the InsertItemTemplate) of a formview, and a slightly modified link the system generated to submit the data to be inserted in the database:
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If this page is run, it inserts the data into the database fine, clears the form and sits there. I want it to return a simple "Thank you" page in a window of the same size, with a Close Window buttom at the bottom to close the window:
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When I set the postbackurl property on the first page, everything appears to work, except the write is never done to the database. If I remove the postback, it works as it did previously.
through clicking the title from gridview it willl update the status of the lecture from 0 to 1
0 means new while 1 means already opened..
this is my code
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I have been stuck on this for a while and I can't seem to get it to work despite looking for answers in books and all over the web, so I hope perhaps you all can help me figure this out...
Here's what I'm trying to do....
I have some information in a simple product database displaying in a gridview table. One of the columns is a row of checkboxes indicating whether the item has been discontinued or not. When the row gets updated, it needs to update the checkbox value in the database.
1. It needs to be disabled until the row is getting edited.
2. Send the string value of 0 or 1 to the database when the row is updated.
Here's the code for the sql datasource and the gridview part in question...
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:sqlDataMaster %>"
ProviderName="<%$ ConnectionStrings:sqlDataMaster.ProviderName %>"
SelectCommand="SELECT ID, ProductName, ListPrice, Discontinued FROM Products"
UpdateCommand="UPDATE Products SET ProductName=@ProductName, ListPrice=@ListPrice, Discontinued=@Discontinued WHERE ID=@ID"
DeleteCommand="DELETE FROM Products WHERE ID=@ID">
<UpdateParameters>
<asp:Parameter Name="ID" Type="Int32" />
<asp:Parameter Name="ProductName" Type="String" />
<asp:Parameter Name="ListPrice" Type="Double" />
<asp:Parameter Name="Discontinued" Type="Boolean" />
</UpdateParameters>
<DeleteParameters>
<asp:Parameter Name="ID" Type="Int32" />
<asp:Parameter Name="ProductName" Type="String" />
<asp:Parameter Name="ListPrice" Type="Double" />
<asp:Parameter Name="Discontinued" Type="Boolean" />
</DeleteParameters>
</asp:SqlDataSource>
<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
AutoGenerateColumns="False" AllowSorting="True"
DataSourceID="SqlDataSource1" CellPadding="3"
GridLines="Vertical" BackColor="White" BorderColor="#999999"
BorderStyle="None" BorderWidth="1px"
DataKeyNames = "ID">
<Columns>
<asp:CommandField ShowSelectButton="True" ShowEditButton="true" ShowDeleteButton="true" />
<asp:BoundField DataField="ID" HeaderText="Product ID" SortExpression="ID" ReadOnly="true" />
<asp:BoundField DataField="ProductName" HeaderText="Product Name"
SortExpression="ProductName" >
<ItemStyle HorizontalAlign="Left" />
</asp:BoundField>
<asp:BoundField DataField="ListPrice" DataFormatString="{0:c}"
HeaderText="Unit Price" SortExpression="ListPrice" />
<asp:TemplateField HeaderText="Discontinued" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:CheckBox id="Discontinued" runat="server"
Checked='<%#Convert.ToBoolean(Eval("Discontinued")) %>' />
</ItemTemplate>
<ItemStyle HorizontalAlign="Center"></ItemStyle>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#CCCCCC" ForeColor="Black" />
<PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#008A8C" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#000084" Font-Bold="True" ForeColor="White" />
<AlternatingRowStyle BackColor="#DCDCDC" />
</asp:GridView>
Here's a live version for you to look at...
http://homeworksite.mythandmagicstudios.com/homework4/proj3/default.aspx
I've been searching for a tutorial or example on how to update my database when I change the text in the textbox that is in a DataList?
View 8 RepliesI have two databases. When I am using MS Visual Web Developer, I can drag the table onto the webpage and it gives me check boxes to Insert, Update, Delete,...When I do the exact thing using the other database, it only has check boxes forpaging, sorting and selection. What is the difference? I seem to have all teh same permissions in both databases.
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