ADO.NET :: Simple Addrows Datatable Not Working?
Dec 14, 2010am i missing something here, only the 2nd datarow ever gets added to table
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am i missing something here, only the 2nd datarow ever gets added to table
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I want to convert an datarow array into datatable.. Wat is the simple way to do this?
View 3 RepliesI have a form where I am trying to validate few text boxes using javascript. It is not working as it is inteded to and I am unable to understand the reason.can someboady
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When a new item is inserted I want to show a message like "Successful" for 3 seconds and then redirect to main page. For that purpose I used timer control. It works fine in IE but not in firefox. Below is the tick method:
protected void UpdateTimer_Tick(object sender, EventArgs e)
{
UpdateTimer.Enabled = false;
lbl_Result.Visible = false;
if (lbl_Result.CssClass == "successMessage")
{
lbl_Result.CssClass == "failureMessage"
Response.Redirect("~/Admin/ManageSportCategories.aspx");
}
}
In firefox, it continuously refresh pages, timer never gets disabled. What should I do?
I am trying to make a simple composite control - just a label and textbox - but the postback isn't being picked up by the control.I haven't implemented IPostBackDataHandler as according to this its not necessary - the TextBox control should tie in automagically. A composite control that includes a TextBox need not worry about postbacks, as the embedded control will work it out with ASP.NET automatically.
class TestControl : WebControl
{
Label _label;
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I have a simple js function that counts down the characters in a text box, and it works in every browser EXCEPT Firefox (3.6.6). I've tried changing some syntax, but nothing has worked so far.
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I've been having trouble getting a postbackurl to work, so I tried to do a simple test between two pages and I still get the same thing.
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That's all I have on Test1.aspx, yet no matter what I do it just postsback to itself. I can't get it to direct to Test2.aspx. I've tried LinkButton too.
I'm using VS2010 and the builtin webserver.
I have a simple web service that isn't working with a standard jQuery call. The code is below. The jQuery will execute and succeed, but on debugging, the service argument is always null. I've had it separated as 4 string params in a json string and that didn't work either. I must be missing something on the config side, but I can tell what it is.
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I have a simple .aspx page. Where I need to connect to sql server 2008 and show the records on the page in a gridviewcontrol. It will have Edit button on the gridview control. I am getting some weird message about the connection string.
Error message is:
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.ArgumentException: Keyword not supported: 'initial catalog'.
Web.config file:
Code:
<connectionStrings>
<add name="ConnectionString_SqlServer" connectionString="Data Source=PricingDB;Initial Catalog=DB1;Integrated Security=True;Connect Timeout=300" providerName="System.Data.SqlClient" />
</connectionStrings>
In the .aspx page this is how I am connecting.
Code:
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString_SqlServer %>"
ProviderName="<%$ ConnectionStrings:ConnectionString.ProviderName %>"
SelectCommand="select name, value from dbo.Pricing order by name asc"
>
</asp:SqlDataSource>
I ultimately need to show countries in one drop down then states/provinces drop down of the previously selected drop down. I'm sure everyone has seen this many times. My page shows the countries but does not show values in the province/states drop down. It's as if the webservice is never run. I've tried removing and adding the ajaxtoolkit reference. The tableadaters run simple working sql code. I'm really at a lose here.
default.aspx:
...
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>
...
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<%--Dropdown to display countries--%>
Country:<asp:DropDownList ID="ddlCountries" runat="server" DataSourceID="ods_Countries"
DataTextField="country" DataValueField="abbreviation">
</asp:DropDownList>
<%--data source for the country drop down list--%>
<asp:ObjectDataSource ID="ods_Countries" runat="server" OldValuesParameterFormatString="original_{0}"
SelectMethod="GetAllCountries" TypeName="countryDataSetTableAdapters.CountriesTableAdapter">
</asp:ObjectDataSource>....................................
i am developing a simple form in vb.net on load event i am just filling a datatable from an excell sheet and what to do filtering on it e.g
Dim MyCommand As System.Data.OleDb.OleDbDataAdapter
Dim dt as datatable = test.select()
dt.DefaultView.Sort = "col1 ASC"
for each dr in dt.rows
response.write(dr.item("col1"))
next
I had found out the sorting command is "dt.DefaultView.Sort", but why is it not working. Can someone shed a light.
I have copied this shopping cart from the net and incorporated it into my SearchResult.aspx. I understand the code and it seems simple enough but for some reason I am getting an error when trying to run it. Can someone tell me what is wrong below? The generated error stop at the following point: For Each objDR In objDT.Rows. I was thinking that object was not creative during the page load. So I added an
If IsDBNull(objDT) Then
makeCart()
objDT = Session("Cart")
End If
to check if that object exist or not then try to create it. But that didn't work either. :(
This is the error message:
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:
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This is the code to the page. It take the data from a select button on a gridview1. That doesn't seem to be the problem so I didn't added onto here for you guys to see.
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dataTable with dataReader not working
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This is the code form my master page:
<asp:Menu runat="server" id="siteMap" CssClass="siteMapCss" DataSourceID="SiteMapDataSource1" Orientation="Horizontal" >
<StaticMenuItemStyle CssClass="StaticMenuItemStyle" />
<StaticHoverStyle CssClass="StaticHoverStyle " />
<StaticSelectedStyle CssClass="StaticSelectedStyle" />
<DynamicMenuItemStyle CssClass="DynamicMenuItemStyle" />
<DynamicHoverStyle CssClass="DynamicStaticHoverStyle" />
</asp:Menu>
This is the Css:
.siteMapCss
{
margin:auto;
margin-top:15px;
}
.StaticMenuItemStyle
{
margin-left:10px;
color:Black;
}
.StaticSelectedStyle
{
color:Gray;
}
It takes the static styles but not the styles for .siteMapCss. i have checked in IE and i can find reference to .siteMapCss. but in chome its not there. IE:................
I populate a DataTable, then sort the DefaultView of that DataTable. When I set the DataTable as the source for my report, the sort doesn't work. here is the code (GetData returns a valid DataTable):
Dim dt As DataTable = a.GetData(Parm1, Parm2, Parm3)
If rbtSortByField1.Checked Then
dt.DefaultView.Sort = "Field1 ASC"
ElseIf rbtSortByField2.Checked Then
dt.DefaultView.Sort = "Field2 ASC"
ElseIf rbtSortByField3.Checked Then
dt.DefaultView.Sort = "Field3 ASC"
End If
rpt.SetDataSource(dt.DefaultView.Table)
'This also doesn't work
'rpt.SetDataSource(dt)
Gridview Sorting is not Working Since Datatable is Empty
Code: Dim dt As DataTable = TryCast(GRDV.DataSource, DataTable)
above code is returning Empty Gridview ..
code is below
Protected Sub GRDV_Sorting(sender As Object, e As System.Web.UI.WebControls.GridViewSortEventArgs) Handles StudentAssignmentgridview.Sorting
'If showImage = False Then
' showImage = True
'End If
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I have written a javascript code for handling the password functionality. The scenario is: when user wants to change the old password, he cannot fill the same old password again. I have written the code. But even the simple alert of blank textbox is not working. See the code for reference:
Javascript code:-
<script type="text/javascript">
function ltrim(str) {
var reg
reg = /^s+/g
return str.replace(reg, "")
}
function rtrim(str) {
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aspx code:-
<tr>
<td class="auto-style1">Old Password</td>
<td class="auto-style2">
<asp:TextBox ID="txtOldPassword" runat="server" TextMode="Password" class="txtcareer"></asp:TextBox>
<asp:RequiredFieldValidator ID="reqtxtOldPassword" ControlToValidate="txtOldPassword" runat="server" ErrorMessage="*"></asp:RequiredFieldValidator>
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Why this is not working...
'DataTable' is an ambiguous reference between 'System.Data.DataTable' and 'Microsoft.Office.Interop.Word.DataTable'
View 3 RepliesI was reading: [URL]
But I have give a compilation error:
CS0246: The type or namespace name 'DataTable' could not be found (are you missing a using directive or an assembly reference?
i have the dataset with one table.Table contains three column like 'Name','Location','Pin'.I would like to move the data from another table based on schema.
View 2 RepliesIf 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 Repliesim trying to copying specific record from one datatable to another datatable i used below code
public System.Data.DataTable selectspecificdatarow(System.Data.DataTable dtg, int count, int startindex)
{
System.Data.DataTable dtn = dtg.Clone();
for (int i =startindex; i < count; i++)
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its taking too long time in cloneing is there any better way to do this task which is Time effecent
how to join two datatable datas into one datatable to show in one gridview
i.e in 1 datatable i have username and pwd and in another datatable i have that user details. how to show all these in one datatable to get those values display in gridview(asp.net)
Dim dt As New DataTable Dim da As New SqlDataAdapter(s, c)
c.Open()
if Not IsNothing(da) Then
da.Fill(dt)
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When I call da.fill I am inserting all records from my query. I was then hoping to filter them to display only those where the GroupingID is equal to 0. When I run the above code. I am presented with all the data, the filter did not work. Please can you tell me how to get this working correctly.