DataSource Controls :: Modifying The SqlDataSource SelectCommand Prior To Loading A Page?
Sep 28, 2010
I have a SqlDataSource setup in the markup on my page. After some new requirements, I am trying to find a way to modify the SelectCommand before the data is filled for the first time. The SelectCommand below will now be used by default since we'll always have the first param. I am faced with a need to modify the SelectCommand though, adding a second session parameter along with it. I tried to override the OnInit method but it didn't seem to help...it still used the default query. Is there a best way to accomplish this? Here is the section of markup I am referring to:
[code]....
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Sep 4, 2010
I have a gridview with a sqldatasource with SelectCommand as below:
[Code]....
but it's not workling.....
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Oct 11, 2010
i have an SQLdatasource in my page
i was trying to modify it as:
SQL.SelectCommand = "Select * from " + TXT_Tabella.Text;
because i want update dinamically my sql server tables but ,every time i am going to sort, or change page the selectCommand returns as before!
viewState is true! how can i have an SQLdatasource dinamyc by tableName? and how this problem occurs?
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Nov 17, 2010
In an asp.net 3.5 web app, I have a page with the following markup/code (this is the brief version, but I believe I got all the relevant info).
[Code]....
The form contains 2 different record types, accessed using the paging controls, depending on the ParentSR field; a parent SR will be something like '1234' while its sub-record will be something like '1234.1'. There are only a few differences in the fields used between the 2 different record types and that is why they are stored in the same table. However, the activity depends on the record type. When browsing from the parent record to the sub-record, the itemtemplate loads fine (notice in the formview's datasource
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System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.ArgumentOutOfRangeException: 'ddlActivity' has a SelectedValue which is invalid because it does not exist in the list of items.
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May 27, 2010
In my application, I am using DataList. In Item Template I added One GridView and SqlDataSource to populate data in GridView. DataList having one DataKey field, I want to pass this DataKey Value to the SqlDataSource as Parameter.
I tried this by Using Following:
<SelectParameters>
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Feb 19, 2011
My SqlDataSource has no selectCommand defined in the .aspx page. Instead I define it in the code behind dynamically depending on some parameters that the user selects and then clicks a button to perform the query (custom search filters basically). The problem is that when I click on a different page in my dataPager, or I click to sort any of the columns the gridview becomes empty when the page refreshes. I did a check and the selectCommand becomes empty when the page posts back. Is there a way to prevent this from happening?
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Mar 11, 2010
I have a page has Listview and Datapager inside UpdatePanel. When I refresh the new SQL results and bind by pressing link buton outside of the update panel, I get correct results. (get new SQLselect statment, rebind to listview, update updatepanel)
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Feb 2, 2010
With asp 2.0 and vwd 2005, I have a page with a radiobuttonlist, textbox and gridview with edit/delete. Using the radiobuttonlist, the user selects a search type and then enters the criteria in the text box. the click event of a submit button checks the rbl.selectedindex and chooses a sqldatasource.selectcommand with the where clause getting its criteria from the textbox. The gridview loads the data, but the edit/delete are not working. Code and relevant markup is below
[Code]....
[Code]....
[Code]....
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Nov 17, 2010
I have a DDL with 2 options: "Trainer" & "Observer." I'd like to use the selection from that DDL to reference a field in the SqlDataSource SelectCommand.
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Dec 15, 2010
I have an ASP.NET 3.5 web form with a DropDownList bound to a table of company names in a database. I also have a data bound GridView which I would like to update with data from the database depending on the company name selected in the DropDownList, so that the SelectCommand for the GridView's SqlDataSource is:
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Jul 23, 2010
I have a GridView bound to a SqlDataSource with a default SelectCommand defined as such:
<asp:SqlDataSource ID="SqlDataSource1" runat="server" DataSourceMode="DataSet"
ConnectionString="<%$ ConnectionStrings:MyConn %>"
ProviderName="MySql.Data.MySqlClient"
SelectCommand="select * from blah blah" />
There are cases where I have to change this query dynamically at runtime, so I do the following:
SqlDataSource1.SelectCommand = sql; // 'sql' is the new query
GridView1.PageIndex = 0;
GridView1.EditIndex = -1;
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GridView1.DataBind();
updatePanel.Update();
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Mar 30, 2011
How to get sqldatasource1.selectCommand value
[Code]....
i want to set that if nothing return i will display a msg to users.
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Jul 7, 2010
I am trying to pass a variable within a selectcommand statment in ASP.NET and I have researched online how to do it but I can't seem to find a way to do it...What I am trying to do is write a code for a web page that will display a page with useful links on it where the links are separated into different topics and where everything is dynamically grabbed from a database. This is what I have so far:
<!-- Start MainContentRegion -->
<h1>Useful Links</h1>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
[]code...
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Dec 21, 2010
My SelectCommand string in my asp:SqlDataSource is very long. Is there a way I can chop it up into different strings on several newlines to make it more readable?
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May 14, 2010
I am trying to tie a sqlDatasource to a Stored Procedure. The stored procedure looks like...
[Code]........
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Jan 7, 2011
I have a question related to <asp:SqlDataSource's SelectCommand. How to pass a querystring like <%# Eval("PhotoID") %> in the selectCommand. The whole frontend code is attached. I put
<%# Eval("PhotoID") %> and the photoid gets printed in the page.
<%# Eval("PhotoID") %> is the current displayed picture's PhotoID.
I want to pass this PhotoID or I want to pass <%# Eval("PhotoID") %> to the select command dynamically. I have tried the following approaches:
1) <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:aspnetdb %>" SelectCommand="SELECT UserName, commentDesc, uID FROM photo_comment_view Where pID = @pID"> <SelectParameters><asp:Parameter Name="pID" DefaultValue="7" /></SelectParameters> </asp:SqlDataSource> The above works but it gives only information about PhotoID 7, but there are other photos; How to set pID's value to <%# Eval("PhotoID") %> in ASP .NET's frontend page? then I also tried,
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What I should do so that I can pass current PhotoID to SelectCommand? The frontend code:
<%@ Page Language="VB" MasterPageFile="~/Default.master" Title="Your Name Here | Picture Details"
CodeFile="Details.aspx.vb" Inherits="Details_aspx" %>
<asp:content id="Content1" contentplaceholderid="Main" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<div class="shim solid"></div>
<div class="page" id="details">
<%--Update Panel Here--%>
<asp:UpdatePanel runat="server" ID="updatepanel">
<ContentTemplate>
<asp:formview id="FormView1" runat="server" datasourceid="ObjectDataSource1" cssclass="view"
borderstyle="none" borderwidth="0" CellPadding="0" cellspacing="0" EnableViewState="false" AllowPaging="true">
<itemtemplate>
<div class="buttonbar buttonbar-top">
<a href="Albums.aspx"><asp:image ID="Image1" runat="Server" skinid="gallery" /></a>
<asp:ImageButton ID="ImageButton9" Runat="server" CommandName="Page" CommandArgument="First" skinid="first"/>
<asp:ImageButton ID="ImageButton10" Runat="server" CommandName="Page" CommandArgument="Prev" skinid="prev"/>
<asp:ImageButton ID="ImageButton11" Runat="server" CommandName="Page" CommandArgument="Next" skinid="next"/>.................
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Dec 1, 2010
how to query the system date in selectcommand in gridview without using the codebehind. using c# .net
my code:
<asp:SqlDataSource ID="SqlDataSource1" runat="server" SelectCommand="SELECT * FROM tablename where date_today = <SYSTEMDATE>" ConnectionString="<%$ ConnectionStrings:ConnectionString %>" ProviderName="<%$ ConnectionStrings:ConnectionString.ProviderName
%>"
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Nov 7, 2010
I've got a gridview which works fine. I use dropdownlists which are filled with distinct values of the columns. So when I select an item in a drompdownlist the gridview refreshes based on the selected value. When I have a column which uses string values, I can start the filter with a default % value to use in my select paramaters. But when I have a date column, I can't use that. I use a datasource for the gridview and I prefer to leave codebehind out if this is not needed. Now I use >= in my gridview select to show all rows. but I want to use only = to make the filter work correct when I select a date in the ddl and use the selectedvalue in the gridview selectCommand
<asp:DropDownList ID="ddlUpdateDatum" DataSourceID="dsPopulateUpdateDatum"
AutoPostBack="true" DataValueField="UPDATEDATE" runat="server"
CssClass="selectinput" AppendDataBoundItems="true">
<asp:ListItem Text="All" Value="01/01/1900"></asp:ListItem>
</asp:DropDownList>
<asp:SqlDataSource ID="dsPopulateUpdateDatum" runat="server"
ConnectionString="<%$ ConnectionStrings:GAMSYSTEMSqlServer %>"
SelectCommand="SELECT DISTINCT(UPDATEDATE) FROM [messages] ORDER BY UPDATEDATE ASC ">
</asp:SqlDataSource>
And I use this in the gridview datasource:
<asp:SqlDataSource
runat="server"
ID="dsGridview"
ConnectionString="<%$ ConnectionStrings:DBSqlServer %>"
SelectCommand = "SELECT * FROM [messages] WHERE AND UpdateDatum >= @UpdateDatePar ORDER BY UpdateDatumDESC"
>
<SelectParameters>
<asp:ControlParameter Name="UpdateDatePar" ControlID="ddlUpdateDate" PropertyName="SelectedValue" Type="string" />
</SelectParameters>
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Nov 10, 2010
[code]....
Is ther a way I can tie DataSource to SqlDataSource on aspx page and pass select parameters?
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Mar 4, 2011
I have a SQL data source control defined to filter data from a SQL database, sorted according to the date time in descending order. When i try and update a field of the latest record, the entire column, related to the field of the filtered search gets modified. I want to only update a field of the last record i.e. the last entry of the filtered data. How can i achieve it?
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May 7, 2010
[Code]....
modifying WHERE Clause and change to RegEx?
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Apr 19, 2010
I have just started using LINQ with VS2008. I have added extra columns to my table, saved the changes, but class ClassName.Designer.CS didn't get updated. What do I have to do to updated the class? Do I have to do it manually, or is there a way to automatically synchronize tables and ClassName.Designer.CS?
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Feb 20, 2010
I am confused about why I would need to wrap the DataContext's SubmitChanges within a transactionScope when modifying multiple tables. I was under the impression that the DataContext would track these changes and would therefore create its own transaction if need be.
In other words, if a change was made to update table A, B and C or if I made changes to 10 out of 20 items in a collection of rows, that the datacontext would track these changes and create its own transaction. If that is correct then why have I seen examples that wrapped these types of updates in a TransactionScope?
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Jan 9, 2010
I am trying to setup a page that access a members email address from a query string and then updates a table to set a field "opt_out" to true. I want to accomplish this on page load so when the user clicks a link I send them in their email to opt_out it will automatically do so. I have an sqldatasource set up as follows;
[Code]....
How can I call this datasource to update on page load isntead of binding to sometype of view?
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Feb 25, 2010
i have two sqldatasource controls. one i use to display data in textbox's ,filter'd by a select parameter in page behind code. Once checked, i want to copy this data to the other datasource ,by selecting checkbox.Then display this data in detailsview control.
At present the two datasource controls declared , render data to the page simultaneously during pageload. I want to first check data in textbox's from first source, before second datasource is rendered to screen. note, both are filtered by a page variable. i wish to leave the textbox datasource control in situ, as other controls and code depend on it.The other detailsview datasource is my problem?
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