Web Forms :: Add Data Value By Loop In Dropdown In C#?
Oct 29, 2010how can add data value by loop in dropdown reply me soon
View 2 Replieshow can add data value by loop in dropdown reply me soon
View 2 RepliesI want to loop thru dropdown list and check the individual list item text using C#, let me know what is the best way to do this?
View 4 RepliesI have dropdown list I want to use the arror to click and control and select the value in the dropdown box , the first click select item1 .... How can I do that?
View 4 RepliesI have 3 drop down lists on a form that collects data from a visitor.
Each DDL shows a list of Music Genre and the User can make up to 3 choices ( 1 selection from each DDL)
I want to loop through the DDLs and Insert the GenreId (int) and UserId (Guid) into a Junction Table called
UserGenre which has UserId and GenreId as Primary Keys.
In C sharp - How can I loop through and get each DDL selected value (If chosen) from the form and insert to table?
Here is my code, using LinQ to get the data from database.
public IEnumerable categoryData()
{
db = new DBModelDataContext();
var cat = from c in db.Categories
select new { c.categoryname,c.categoryid };
return cat;
}
trying to get the values (categoryname and categoryid) into textfiled and valuefield of dropdown list.
dt = new clsData();
ddlCategory.DataSource = dt.categoryData();
what is the code that i need to write to assign the categoryname to textfield and categoryid to valuefield. I mean how to loop through the values coming from the above function.
ddlCategory.DataBind();
i have a dropdown with month names if the user has data for the month tht is selected then gridview displays the rows with day nos as per the month but if the gridview has no data for the same the dropdown or gridview via some event should call a insert procedure to insert data into the table for tht month with daynos ad rebind the gridview witht the rows just created
View 6 RepliesI have a gridview where i have two fields. one is product and second is sub category.
I need to do 2 things.
1. I need to populate the two combos from the database. But depending what is selected in dropdown 1 this will determine what needs to be populated in drop down 2?
how can i achieve this?
I have two dropdown linked with sqldatasources.When I select item in ddl1 then on the basis of selection ddl2 is being loaded.Is there any possiblity that if I select ddl2 then ddl1 will also load on the basis of selection?
View 3 RepliesI've currently got a form with two dropdown boxes on, and an XML file sitting on the site.
My two drop down boxes are Location and Date and what i'm trying to do it get the Location box to filter the XML and put the dates in the Date dropdown box.
I'm using C#.
Unfortunatly, its not working.
My code is:
[Code]....
and my XML is like this:
[Code]....
why my dropdown boxes are not being populated?
I am stuck at this point "Displaying a dropdown list of Categories with a --None -- Option. I want the gridview control to display 2 dropdown list one in read-only mode and the other in edit mode. When a record is in read-only mode, the dropdownlist's enabled property will be set to false."When it's on a read-only mode, it doesn't display the selected Category. it shows but the "No Category". When i click on edit to edit or change category, it doesn't display the selected category.
The example is given below( I am reading the book Sams Teach yourself ASP.NET 2.0 by Scott Mitchell. page 628)
<asp:Label ID="UserIdValue" runat="server" Visible="False"></asp:Label>
<asp:SqlDataSource ID="picturesDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT * FROM [Pictures] WHERE ([UserId] = @UserId) ORDER BY [UploadedOn] DESC"
DeleteCommand="DELETE FROM [Pictures] WHERE [PictureID] = @PictureID"
InsertCommand="INSERT INTO [Pictures] ([UserId], [CategoryID], [Title], [Description], [UploadedOn]) VALUES (@UserId, @CategoryID, @Title, @Description, @UploadedOn)"
UpdateCommand="UPDATE [Pictures] SET [UserId] = @UserId, [CategoryID] = @CategoryID, [Title] = @Title, [Description] = @Description, [UploadedOn] = @UploadedOn WHERE [PictureID] = @PictureID">
<DeleteParameters>
<asp:Parameter Name="PictureID" Type="Int32" />
</DeleteParameters>
<InsertParameters>
<asp:Parameter Name="UserId" />
<asp:Parameter Name="CategoryID" Type="Int32" />
<asp:Parameter Name="Title" Type="String" />
<asp:Parameter Name="Description" Type="String" />
<asp:Parameter Name="UploadedOn" Type="DateTime" />
</InsertParameters>
<SelectParameters>
<asp:ControlParameter ControlID="UserIdValue" Name="UserId" PropertyName="Text"/>
</SelectParameters>
<UpdateParameters>
<asp:Parameter Name="UserId"/>
<asp:Parameter Name="CategoryID" Type="Int32" />
<asp:Parameter Name="Title" Type="String" />
<asp:Parameter Name="Description" Type="String" />
<asp:Parameter Name="UploadedOn" Type="DateTime" />
<asp:Parameter Name="PictureID" Type="Int32" />
</UpdateParameters>
</asp:SqlDataSource>
<br />
<asp:SqlDataSource ID="categoriesDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT [CategoryID], [Name] FROM [Categories] WHERE ([UserId] = @UserId)">
<SelectParameters>
<asp:ControlParameter ControlID="UserIdValue" Name="UserId" PropertyName="Text" />
</SelectParameters>
</asp:SqlDataSource>
<br />
<asp:SqlDataSource ID="maxPictureIDDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>" SelectCommand="SELECT MAX(PictureID)
FROM Pictures
WHERE UserId = @UserId">
<SelectParameters>
<asp:ControlParameter ControlID="UserIdValue" Name="UserId"
PropertyName="Text" />
</SelectParameters>
</asp:SqlDataSource>
<br />
<asp:Label ID="cannotUploadImageMessage" runat="server"
Text="The photo could not be added to your album either because you did not specify a file to upload or the file specified was not a JPEG image with the file extension .JPG"></asp:Label>
<br />
<asp:DetailsView ID="dvPictureInsert" runat="server"
DataSourceID="PicturesDataSource" Height="50px" Width="125px"
AutoGenerateRows="False" CellPadding="4" DataKeyNames="PictureID"
DefaultMode="Insert" ForeColor="#333333" GridLines="None">
<AlternatingRowStyle BackColor="White" />
<CommandRowStyle BackColor="#D1DDF1" Font-Bold="True" />
<EditRowStyle BackColor="#2461BF" />
<FieldHeaderStyle BackColor="#DEE8F5" Font-Bold="True" />
<Fields>
<asp:TemplateField HeaderText="Picture">
<InsertItemTemplate>
<asp:FileUpload ID="imageUpload" runat="server" />
<asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server"
ControlToValidate="imageUpload" Display="Dynamic"
ErrorMessage="There was no file selected" ValidationGroup="PictureAdd"></asp:RequiredFieldValidator>
</InsertItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Category" SortExpression="CategoryID">
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("CategoryID") %>'></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:DropDownList ID="pictureCategory" DataSourceID="categoriesDataSource"
runat="server" DataTextField="Name" DataValueField="CategoryID"
SelectedValue='<%# Bind("CategoryID") %>'
Visible='<%# Bind("CategoryID") %>' AppendDataBoundItems="True">
<asp:ListItem Selected="True" Value="">-- Select Category --</asp:ListItem>
</asp:DropDownList>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("CategoryID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Title" SortExpression="Title">
<EditItemTemplate>
<asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("Title") %>'></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Title") %>'></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ControlToValidate="TextBox1" Display="Dynamic"
ErrorMessage="you must provide a name for the title"
ValidationGroup="PictureAdd"></asp:RequiredFieldValidator>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Bind("Title") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Description" SortExpression="Description">
<EditItemTemplate>
<asp:TextBox ID="TextBox3" runat="server" Text='<%# Bind("Description") %>'></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("Description") %>'
in my button4 click event, i want to insert checboxlist items to data table. first i want to delete all of the exisiting and then insert again.
my code is below but it is not working if you could explain anyone ?
in page load I have written code so that existing checkbox items are selected.
[code]...
I just cannot figure out how to do this. How do I get the 0 index item from each row of a listview? Here is what I have so far.
[Code]....
i have a website that needs to retrive some records in the database, to be specific, example is their Email Address, its more or less 10 records out of 100 records in a table but that number changes from time to time. upon retriving their Email Address, i need to Email them some messages one email at a time.
So to summarized it all:
1. Retrive data from a table (Email Address)
2. Make a Loop on each Email then send Message one email at a time.
give me a sample codes for the retriving and looping process?
How do I loop through a GridView (the actual GridView, not its data source) to check what's displayed in the first cell (a BoundField with int data) of every row?
View 4 RepliesIs it possible to loop through a gridview and based on if a checkbox is checked, then change the backcolor to that current row? I have gave a few attempts, but luck.
[Code]....
I have a Bulk Gridview(all rows are editable) I need to loop through.I need to get the text that's displayed in each of the textboxes in the gridview, my current code is this:
[Code]....
like this, I need to loop through the gridview, but instead of just getting the text in each column, I need to get the text from the textboxes. How can I do that?If i'm going to use findcontrol() then I need the ID of each control. the gridview is always created dynamically, which means I don't know the number of controls that's being created beforehand. So, how/where can I find the ID?Is there another way to extract data from the textbox, other than findcontrol()?
What I want to do is programatically set editindex of all listviews to 0. How can I do this?
I want to use a foreach(listview lv in Page.Controls)
{
lv.editindex = 0;
}
but I get an error Unable to cast object of type 'ASP.masterpages_claims_master' to type 'System.Web.UI.WebControls.ListView'.
I am trying to loop through all gridviews on a page to hide them and set their page index to 0. This should be very easy to do and it seems like the code below should work but it doesn't?? How can I accomplsh this with the least amount of code? FYI- this code is executed on a button click.
foreach (Control childControl in Page.Controls)
{
if (childControl is GridView)
{
((GridView)childControl).Visible = false;
((GridView)childControl).PageIndex = 0;
}
}
Im stuck with declaring a string which is in a loop within another loop.
Dim CompanyDetails As String = ""
Dim CompanyRow As DataRow
For Each CompanyRow In newdt.Rows
CompanyDetails += CompanyRow(1) & " " & CompanyRow(0) & "<br/>"...
How can I get this to see the GetInfo as declared..... since its in a loop within a loop?
I have found demos of multi-edit gridview which basically mark each row as edited then loop through them:
http://msdn.microsoft.com/en-us/library/aa992036(v=vs.80).aspx
I would like to avoid row by row loops for performance reasons possibly using the SQL Server 2008 "MERGE"
I program in VB.Net but I can use C#.
I need to make sure only one checkbox gets checked in a GridView. I have tried a solution on here, but I get an error. The other is looping through the checkboxes in the gridview to get the value, in this case, a date.
[Code]....
And here is my code behind:
[Code]....
How do I loop the gridview to read or insert one row by one row?I have a database which has a Primary key. Currently,all the rows seems to appear at one time.Even when I use a counter,it did read one row from a textbox(which is for my testing to read one row) but in the database,it still inserts the whole rows from the gridview.I can't click button twice as it will occur an error "Primary Constraint".
View 6 RepliesI have a data gird in my page that my gird have checkbox and i have to loop on checkbox and if checked add too collection but i dont undrestand How can?? this is my DataGrid
<asp:DataGrid ID="grdData" runat="server" AllowPaging="True" AutoGenerateColumns="False" HorizontalAlign="Center" Width="100%" DataKeyField="ContactID" CellPadding="4" ForeColor="#333333" GridLines="None" OnDeleteCommand="grdData_DeleteCommand"> <itemstyle backcolor="#E3EAEB" /> <pagerstyle horizontalalign="Center" backcolor="#666666" forecolor="White" /> <alternatingitemstyle backcolor="White" /> <columns> <asp:TemplateColumn> <itemtemplate> <input id="chkIsCheked" type="checkbox" title="<%#DataBinder.Eval(Container.DataItem, "ContactID")%>" /> </itemtemplate> <asp:TemplateColumn HeaderText="کد مشتری" SortExpression=""> <itemtemplate> <center> <%#DataBinder.Eval(Container.DataItem, "ContactID")%> </center> </itemtemplate> <asp:TemplateColumn HeaderText="نام " SortExpression=""> <itemtemplate> <center> <%#DataBinder.Eval(Container.DataItem, "FirstName")%> </center> </itemtemplate> <asp:TemplateColumn HeaderText="نام خانوادگی" SortExpression=""> <itemtemplate> <center> <%#DataBinder.Eval(Container.DataItem, "LastName")%> </center> </itemtemplate> <asp:TemplateColumn HeaderText="ایمیل " SortExpression=""> <itemtemplate> <center> <%#DataBinder.Eval(Container.DataItem, "PrimeryEmail")%> </center> </itemtemplate> <asp:TemplateColumn HeaderText="موبایل مشتری " SortExpression=""> <itemtemplate> <center> <%#DataBinder.Eval(Container.DataItem, "PrimeryMobileNumber")%> </center> </itemtemplate> <asp:TemplateColumn> <itemtemplate> <a href="EmailSender.aspx?Email=<%#DataBinder.Eval(Container.DataItem, " primeryemail=")%>"> فرستادن ایمیل با این شخص </a> </itemtemplate> <asp:TemplateColumn> <itemtemplate> <a href="ContactsDetaile.aspx?ID=<%#DataBinder.Eval(Container.DataItem, " contactid=")%>"> دیدن جزئیات </a> </itemtemplate> <asp:ButtonColumn ButtonType="PushButton" HeaderText="حذف" CommandName="Delete"> <itemstyle backcolor="Red" /> <HeaderStyle HorizontalAlign="Center"></HeaderStyle> <itemstyle horizontalalign="Center"></itemstyle> </columns> <edititemstyle backcolor="#7C6F57" /> <footerstyle backcolor="#1C5E55" font-bold="True" forecolor="White" /> <HeaderStyle BackColor="#1C5E55" ForeColor="White" Height="30px" HorizontalAlign="Center" VerticalAlign="Middle" Font-Bold="True" /> <SelectedItemStyle BackColor="#C5BBAF" Font-Bold="True" ForeColor="#333333" />
I have a following scenario - A use selects criterias from a webform (C#) - a result is then returned from the sql. Say, to start, there are 2000 data returned from the sql and are stored in a dataset.
Now, the user wants to choose a number of drops (up to 6) - with the number of drops selected, they can enter their own quantity in each box. So, they can divide the 2000 records into 6 different drops. With each drop, there is campaigncode created based on the mail date and the job number they provide.
So, now i have the 2000 records in a dataset. What i want to do is loop through the gridview where the user fill out the quantity depending on the number of drops (for ex: if they say 3 drops, then there will be 3 rows in gridview with 3 quantity box to fill).
In the loop, I am getting the quantity, dropdate and the job number. The Campaigncode is created as well. Then, i am looping through the datarow in the dataset; updating the Campaign Code column with the CampaignCode for the number of records thats set in a loop. It works but the Campaign Code is not populated for the next set of records.
Here is the code:
[Code]....
I think its this line right here thats causing the problem. But i don't know how to tweak this so as to accomplish what i want to do.
if (Convert.IsDBNull(DSAEFile.Tables[0].Rows[i]["Campaign Code"]))
I have a two gridviews that I populate it through some tables from a database.
In the same page I have a ASP:Button with onclick event.
When click is perform I wish to write a code that compares the old values of both gridviews (that retrieved from database), with the new values, and if changes were made then create the changes in the database.
I think that the best way is to loop every gridview sepertly, and compares it with the values in the database
How do I do that? Do you have a sample code that loops on gridview and compares with the old values to detect changes?