Forms Data Controls :: Sequential Delete Statements In A TableAdapter Ad Hoc Query
Mar 24, 2010
VS 2008 ASP.NET 3.5 app connecting to an MS SQL 2005 backend. The app contains a strongly typed dataset with a number of TableAdapters. I'm trying to add a query to one of the TableAdapters that deletes from table A, then related entries from table B, then related entries in the master table - table C. The query looks like this:
[Code]....
When I try to run that query to test it out, an error dialog box pops up that says "Unable to parse query text" followed by a second error dialog box that says "Must declare scalar variable @ID". Will the TableAdapters not run sequential Delete statements like this or did I do something wrong?
**Side note: A cascading Delete foriegn key relationship would be ideal, and was configured on the development database, but the DBAs messed up when replicating the database on the production server and getting them to fix something like this can be a difficult process.
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Feb 23, 2011
I'm using the 'Configure Data Source' wizard to connect to my database and show the dataset in Gridview. I want to be able to update, insert and delete entries but am unsure how to build the query. I can write simple update statments to change database entries but how can I do this for entries that have been changed within the gridview?
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Dec 1, 2010
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Jan 19, 2010
I have a quite baffling problem. I've created a Table adapter with 3 queries. 1. GetMemberData() - Return ALL rows. 2. SearchMembersLastName(@q) - Return specified columns from rows that have a column starting with a specified letter. 3. GetMemberDataById(@id)
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[Code]....
The problem is that it is acting like:
[Code]....
Here's the code that's calling it:
[Code]....
I just can't figure out why this is happening, any help will be greatly appreciated.
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May 4, 2010
in generate the Stored Procedures when using Create TableAdapter configuration Wizard in VS.it can not generate the Stored Procedures for Delete and Update Commands, but it generated for Select and Insert. i tried many times, but still get the same problem.
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Jan 6, 2010
I am creating a TableAdapter using corresponding wizard, with a GetDataByID() query. The select statement is like this:select * from books where ID = ?Thus books are filtered by ID. But in case a null is passed as a parameter, I want to select all records rather than none. Could you please tell me how I can do it?
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Mar 15, 2010
I need to write a select query where it will be doing "like" on one column with multiple strings.
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Jun 7, 2010
I tried to find a LINQ section on this forum, but couldn't, so I'll post this here since is deals with LINQ, C#, MVC, SQL Server, and well...just about everything.
Here's the details....My Application is an ASP .Net MVC 1.0 app, using C# 3.5, SQL Server 2005 Std, and LINQ to Entity.
In my View, I have numerous Html.CheckBox controls, they get passed to my Controller as a string collection via a JQuery Ajax call. The values of each checkbox are seperated by a comma(,). I then Split the string, to get the individual values. The overall purpose to to allow users to build a custom report with only the data elements they have checked the boxes for. Here is my controller:
[Code]....
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[Code]....
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Nov 24, 2010
I have a webpage that displays the results of a query on a table. The resulting list is sorted by town:
New York
Hyatt Regency Waldorf Astoria
Paris
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Hyatt Regency Waldorf Astoria nearby hotels:
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Paris
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If the query turns up no records (no nearby hotels), I don't want to display anything. If it turns up 1 or more records, I want to display the list of nearby hotels.
I am trying to set up a conditional "if" statement that checks to see if any records returned but am getting an error when I try to build:
Error 3 'Maine_Innkeeper_Site_2010.App_Code.DataAccessLayer.MaineInnsDatasetTableAdapters.membersTableAdapter.GetNearbyProperties(string)' is a 'method', which is not valid in the given context E:Ed dataclientsMaine InnkeepersMIA website 2010Maine Innkeeper Site 2010lodging-search-output.aspx.cs 49 49 Maine Innkeeper Site 2010 [Code]....
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Sep 15, 2010
have trouble to add delete column to gridview when using specific query.I have PK set up at the table, I need add specific query to display dataat gridview:
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Nov 30, 2010
I have a TableAdapter that consists of an SQL SELECT query.
Need to create an "if" statement that checks to see if the query returned any records.
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could be found (are you missing a using directive or an assembly reference?) E:Ed dataclientsMaine InnkeepersMIA website 2010Maine Innkeeper Site 2010lodging-search-output.aspx.cs 49 83 Maine Innkeeper Site 2010
What's the proper way to check if HasRows is wrong?
[Code]....
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May 11, 2010
Before I get too far down the road I just want some advice. I'm building a web app using VWD2008 and MySQL 5. I've got the membership provider stuff working fine and have an odbc connection setup which works "fine". what I've noticed is that when I configure a new sqldatasource (that will be used to provide data to a listview or something) the Advanced -> generate Insert,Update..... option is disabled. I'm assuming its because of the sql syntax difference of the square brackets issue between MS SQL Server and MySQL.
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Dec 15, 2010
I'm creating a webpage with serveral web controls to set search parameters for querying an SQL table. My plan is to use a TableAdapter to hold the query. If the user decides not to use one, several, or any of the web controls to filter their search, I want the SELECT to execute without complaining that it doesn't have parameter values. Should my SQL query look like
[Code]....
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May 7, 2015
In a grid view me bind the data .if i click the update it throw the error like this
Server Error in '/bramandam site' Application.
Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 81: TextBox tfn = (TextBox)dv.FindControl("tsn");
Line 82: Label lb = ((Label)dv.FindControl("Label4"));
Line 83: string qry = "update section set sectionid='" + tbf.Text;
Line 84: qry += "',sectionname='" + tfn.Text;
Line 85: qry += "' where pk='" + lb.Text;
Source File: d:jquery themesramandam siteSection.aspx.cs Line: 83
Stack Trace:
[NullReferenceException: Object reference not set to an instance of an object.]
Section.GridView1_RowUpdating(Object sender, GridViewUpdateEventArgs e) in d:jquery themesramandam siteSection.aspx.cs:83
System.Web.UI.WebControls.GridView.OnRowUpdating(GridViewUpdateEventArgs e) +133
System.Web.UI.WebControls.GridView.HandleUpdate(GridViewRow row, Int32 rowIndex, Boolean causesValidation) +720
[Code] .....
Version Information: Microsoft .NET Framework Version:2.0.50727.4984; ASP.NET Version:2.0.50727.4971
if i click the update i need to throw the error edit and update the content
my gridview is
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="sectionid" onrowdeleting="GridView1_RowDeleting" onrowcommand="GridView1_RowCommand" onrowediting="GridView1_RowEditing" onrowupdating="GridView1_RowUpdating" BackColor="White" BorderColor="#E7E7FF" BorderStyle="None" BorderWidth="1px" CellPadding="3" GridLines="Horizontal">
<RowStyle BackColor="#E7E7FF" ForeColor="#4A3C8C" />
[Code] ....
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Oct 19, 2010
Sure could use some guidance and clarification here. This is an ASP.NET 3.5 app built with VS2008.The data is provided through a strongly typed dataset and TableAdapters containing Ad Hoc queries. A requirement on the project was recently modified. Previously, this query was used to select records based on a specified ZoneID:
[Code]....
The requirement now is that if no ZoneID is selected, the page passes a value of 0, it ignores the WHERE statement and selects all records. Otherwise, it passes the integer value to ZoneID and selects all records associated with that ZoneID.
I have tried several variations including CASE statements in the WHERE clause and surrounding the entire query. I also tried [Code]....
By including a SET statement in SQL Server Management Studio, this works. However, Ad Hoc queries in TableAdapters do not support DECLARE statements.
This also did not work: [Code]....
And neither did this: [Code]....
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Feb 19, 2010
look at the following code
[Code]....
The last three statments produces the same effect. Which one is better and mostly used?
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Mar 13, 2010
I have trouble finding a really good Paging DataList using DataSet and tableadapter.
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Dec 14, 2010
Currently using VS 2005 & MS SQL 2005 Server with a Windows 7 OS and I am unable to generate Update/Insert/Delete queries when using the TableAdapter wizard. I am able to create the Select statament. This is the error message that is displayed in the TableAdapter wizard on completion for each of the Update/Insert/Delete queries "failed to find or load the registered .net framework data provider"
I have seached the web but no one seems to have seen this same issue.
If you know what is causing this let me know. I didn't have this issue while running a XP or Vista OS.
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Feb 16, 2010
I have a ListView bound to a database view (vw_Reunions). The Eval statements in the ItemTemplate render the data in vw_Reunions just fine but I have one in the LayoutTemplate that doesn't display. Can anyone tell me why?
[Code]....
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Dec 23, 2010
This is my stored procedures with 3 selects statements
[Code]....
Now I have to fill two dropdown from the forst 2 select statements and need to fill some label through the 3 statement for this I did this
[Code]....
Its working fine my
[Code]....
Now I want to bind others controls. But I am not getting that how dataset differentiate which data need to bind to which control. How I can do this.
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Jul 28, 2010
A bit new to buttonfields in gridviews - Did a bit of research and most of the stuff I came up with had the gridviews with data bound like so :
[Code]....
private void BindGridControl()
{//method created so that the binded gridview can allow paging controls
DataTable dt = new DataTable();
try
{
/*Gridview requires another column either a checkbox or a hyperlink column that
* can drill down another level and load a page where user can edit the data/cheque
* Will place an exception here that will prompt a window to notify users that
there were no rows returned
*/
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sqlConn.Open();
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sqlSearch += "amt_1 as [Amount 1],acct_2 as [Account 2],amt_2 as [Amount 2], ";
sqlSearch += "acct_3 as [Account 3], amt_3 as [Amount 3], cheque_nbr as [Cheque Number], ";
sqlSearch += "cheque_amt as [Cheque Amount], gst_hst as [GST/HST], qst as [QST],comments as [Comment] ";
sqlSearch += "from SimpData where store_nbr = '" + StoreNum + "'";
sqlCmd = new SqlCommand(sqlSearch, sqlConn);
SqlDataAdapter adapter = new SqlDataAdapter(sqlCmd);
adapter.Fill(dt);
if (dt.Rows.Count > 0)
{
//if there are rows returned bind the datasource to the gridview
GridView1.DataSource = dt;
GridView1.DataBind();
}
else
{
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lblResults.Text = "Search returned no rows";
}
My ButtonFields<Columns>
<asp:ButtonField ButtonType="Button" CommandName="Select" HeaderText="Select item"
ShowHeader="True" Text="Select1">
<ControlStyle Width="50px" />
<HeaderStyle Font-Size="XX-Small" />
</asp:ButtonField>
<asp:ButtonField ButtonType="Button" CommandName="Select" HeaderText="Select item"
ShowHeader="True" Text="Select2">
<ControlStyle Width="50px" />
<HeaderStyle Font-Size="XX-Small" />
</asp:ButtonField>
<asp:ButtonField ButtonType="Button" CommandName="Select" HeaderText="Select item "
ShowHeader="True" Text="Select3">
<ControlStyle Width="50px" />
<HeaderStyle Font-Size="XX-Small" />
</asp:ButtonField>
</Columns>
[Code]....
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Aug 24, 2010
I want to set up a gridview that will display data like this
[Code]....
and that allows editing. Is it possible to have multiple update statements when editing from he gridview? Each day will need a separate update state since the data will be stored in the database like this
[Code]....
I think for each row I would need 7 update statements - one for each day. Is this possible with the gridview edit button?
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Oct 27, 2010
I'm trying to add multiple statements to a onclick attribute of a Gridview row:[Code]. Something must be wrong with the way I concat the string 'script' with the statement that makes the row selectable. when the session var is null, then the Page.ClientScript statement goes through and the row will be selectable, but when the session var is NOT null and as a result, the whole statement contains the 'confirm' part, the the confirmation dialog pops up but nothing else happenes upon confirming. What's wrong with the "script += Page.ClientScript.GetPostBackEv..." part?
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Dec 21, 2010
I have a GridView with an TemplateField:
<asp:GridView runat="server" ID="gvReport" ondatabinding="gvReport_DataBinding">
<Columns>
<asp:TemplateField >
<ItemTemplate>
<asp:Label runat="server" Text='<%#Eval("answers") %>' /> out of <asp:Label runat="server" Text='<%#Eval("questions") %>' />
</ItemTemplate>
</asp:TemplateField >
</Columns>
</asp:GridView>
What I'd like to do on gvReport_DataBinding is change the field the Evals point to, so I end up with something like:
<asp:Label runat="server" Text='<%#Eval("answers_foo") %>' /> out of <asp:Label runat="server" Text='<%#Eval("questions_foo") %>' />
I have gotten this far:
TemplateField tf = ((TemplateField)gvReport.Columns[0]);
But I'm not sure what I should be doing with tf. tf.SomeProperty.Replace("answers", "answers_foo")?
Or am I barking up the wrong airplane on this one?
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Feb 17, 2010
I have no clue what I'm doing wrong here, but I wanted to create a grid view based on a return from a tableadapter.
[Code]....
[Code]....
Also, maybe I should be going about this another way as I wanted to add a drop down to each record and a link to each record.On pointers on how I should do this would be great too.
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