Web Forms :: Get Textbox Value As Null?
Dec 29, 2010i have 10 text box in my page and when i try to store only 2 text box value in db then other 8 has to assign null value . .
Is their any way to assign default value to text box as a null?
Similar Messages:
Web Forms :: Accept Textbox Value Even If It's Null?
Jun 14, 2010I have a javascript to validate and avoid null values for my form but there are some textboxes that I need to be 'optional'. I tried erasing the validation for province address and province contact in javascript to make it optional, but the problem is whenever I add the values in the database, an error message appears "Input string was not in a correct format". It's in C# This is my present code wherein the provincial address and provincial contact must only be optional:
protected void submitButton_Click(object sender, EventArgs e)
Web Forms :: Display NULL Values In TextBox
Jan 25, 2012I have a remarks column which allows null values.. When i try to load a selected row from gridview
Which has nothing in remarks..I get  displayed in the textbox where i need to load the remarks.. I do not want  to be displayed.. If nothing is there in that remarks column textbox should be blank.. How do i do this?
Web Forms :: How Insert Null Field In Textbox Control
Jul 30, 2010I have a column in my database which contains null value. Now after retrieving value from database i want to store that value in my txtbox. I am getting
[DBTableFieldIsNullException: Field 'Title' is NULL] exception.
Forms Data Controls :: Textbox Returns Null
Aug 24, 2010I have a gridview. In the rowupdating event, the txtbox returns null. I have enabled viewstate for the gridview. But still it does not work. I have made this in Kentico.
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True"
AutoGenerateColumns="False" DataKeyNames="id" DataSourceID="SqlDataSource1" EnableModelValidation="True"
OnRowUpdating="GridView1_RowUpdating" >
<Columns>
<asp:CommandField ShowDeleteButton="True" CausesValidation="false" ShowEditButton="True"
ControlStyle-Width="100px" />
<asp:TemplateField HeaderStyle-HorizontalAlign="Left" HeaderText="Name" SortExpression="name">
<ItemTemplate>
<asp:Label ID="lblRegionName" runat="Server" Text='<%# Bind("name") %>' Width="200px"></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox runat="server" ID="EditRegionName" OnTextChanged="EditRegionName_Updated"
Text='<%# Bind("name") %>' Width="200px" />
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox runat="server" ID="InsertRegionName" Text='' Width="200px" />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderStyle-HorizontalAlign="Left" HeaderText="Archived" SortExpression="IsArchive">
<ItemTemplate>
<asp:CheckBox ID="lblArchive" Enabled="false" runat="Server" Checked='<%# DataBinder.Eval(Container.DataItem, "archived") %>'
Width="100px" />
</ItemTemplate>
<EditItemTemplate>
<asp:CheckBox runat="server" OnCheckedChanged="EditArchive_CheckedChanged" ID="EditArchive"
Width="100px" />
</EditItemTemplate>
<FooterTemplate>
<asp:CheckBox runat="server" ID="InsertArchive" Checked="false" Width="100px" />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField ShowHeader="False">
<ItemTemplate>
<asp:LinkButton ID="btnHistory" runat="server" Text="History"></asp:LinkButton>
<ajaxToolkit:ModalPopupExtender OkControlID="OkButton" ID="ModalPopupExtender1" runat="server"
BackgroundCssClass="modalBackground" TargetControlID="btnHistory" PopupControlID="Panel1" />
<asp:Panel ID="Panel1" runat="server" CssClass="modalPopup" Style="display: none">
<div>
<iframe frameborder="0" src="/CMSWebParts/MSM/RoundTableAfrica/Beheer/History.aspx?id=<%# DataBinder.Eval(Container.DataItem, "id") %>"
width="500px" height="100%" scrolling="no"></iframe>
<br />
<asp:Button ID="OkButton" runat="server" Text="OK" CausesValidation="false" Width="50" />
</asp:Panel>
</div>
</ItemTemplate>
<EditItemTemplate>
</EditItemTemplate>
<FooterTemplate>
<asp:Button ID="btnInsert" runat="server" Text="Insert" OnClick="Insert_Click" />
</FooterTemplate>
</asp:TemplateField>
</Columns>
<EmptyDataTemplate>
Region Name:<asp:TextBox runat="server" ID="NoDataRegionName" />
Archived:<asp:CheckBox runat="server" ID="NoDataIsArchive" />
<asp:Button runat="server" ID="NoDataInsert" CssClass="contentButton" Text="Insert"
OnClick="Button1_Click" />
</EmptyDataTemplate>
</asp:GridView>
<asp:Button runat="server" ID="Add" Text="Add" OnClick="Add_Click" />
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:RTAConnectionString%>"
ProviderName="System.Data.SqlClient" SelectCommand="select * from [spiderwebs_region] order by name "
UpdateCommand="UpdateRegionWithHistory" UpdateCommandType="StoredProcedure"
DeleteCommand="DeleteRegionWithHistory" DeleteCommandType="StoredProcedure" OnInserting="Sqldatasource1_Inserting"
OnInserted="Sqldatasource1_Inserted" InsertCommand="InsertRegionWithHistory"
InsertCommandType="StoredProcedure">
<DeleteParameters>
<asp:Parameter Name="id" Type="Int32" />
</DeleteParameters>
<InsertParameters>
<asp:Parameter Name="action_time" Type="DateTime" />
</InsertParameters>
<UpdateParameters>
<asp:Parameter Name="content_type_id" Type="Int32" />
<asp:Parameter Name="object_repr" Type="String" />
<asp:Parameter Name="action_flag" Type="Int32" />
</UpdateParameters>
</asp:SqlDataSource>
Code Behind:
protected void Page_Load(object sender, EventArgs e)
{
GridView1.DataBind();
}
protected void GridView1_RowUpdating(Object sender, GridViewUpdateEventArgs e)
{
int index = e.RowIndex;
GridViewRow currentrow = ((GridView)sender).Rows[index];
TextBox txtbox = (TextBox)currentrow.FindControl("EditRegionName");
CheckBox isarchive = (CheckBox)currentrow.FindControl("EditArchive");
e.NewValues["name"] = txtbox.Text;
e.NewValues["archived"] = isarchive.Checked;
GridView1.EditIndex = -1;
GridView1.DataBind();
}
Web Forms :: Accessing UserControl TextBox Null Reference?
Jan 20, 2011I have a .ascx file residing in another page which has a button on it. On click I run a select statement that accesses the textbox for a value.
However, it keeps returning a Null Exception Error. I am trying access the textbox and its text through
[Code]....
I also tried -[Code]....
I also tried -[Code]....
But none of them work. Please can someone advise me how I find the textbox and then access its text?I have looked round the forums / google and cant find a way of doing this!
Web Forms :: Insert NULL Value In Database When TextBox Is Blank
Mar 12, 2014below is House_info table in database
Id Behtop Service1 Service2
1 1111 Estate Null
2 2222 Home Home1
and I have 2 Textbox in page that users can enter text on them and update House_info tables column service1 and service2
below is SP:
@Service1 nvarchar(20)=NULL,
@Service2 nvarchar(20)=NULL
as
begin
update House_info set
Service1=@Service1,Service2=@Service2
END
and behind code
_cmd.Parameters.AddWithValue("@Service1", TxtMT1.Text);
_cmd.Parameters.AddWithValue("@Service2", TxtMT2.Text);
problem is that if users enter text in TB and click on button it update columns data but if they don't enter any thing in textbox it enter space in Table like:
Id Behtop Service1 Service2
1 1111 Estate
2 2222 Home Home1
I want if users don't enter any thing in text box it insert in table "NULL".How I can do it?
Forms Data Controls :: How To Assign Null Value To The Textbox In Repeater
Jan 18, 2011I am using repeater for binding data from the database
in repeater i put one textbox.
first time when page load event occured at that time value of textbox is null but when second time textbox takes previously assign values..
so how to assign null to the textbox.
Web Forms :: Insert NULL In Database Is Date Is Not Entered In TextBox
Jul 6, 2012I have one text box for accepting date. I want to store date column in database is null when the text box value is null and how to bind the this null value to text box when i retrieve.
View 1 RepliesWeb Forms :: Insert NULL Value For Date Column In Database If TextBox Is Blank
Jun 16, 2015How should i insert null values into a database. I have textbox1 and the textbox2 will convert the value out of textbox1, when i the time i click save and the textbox1 is empty i got an error, "Conversion from string "" to type 'Date' is not valid." i just want to insert null value if the textbox is empty.
View 1 RepliesForms Data Controls :: Handling A Null Value In Textbox FormView (on Button Click To Calculate Totals)
Mar 17, 2011I have a rather large formview that asks for a variety of input values (physical totals vs pos report totals). I have created vb code to calculate the differences and subtotals of various types prior to inserting the data so people can check for entry errors.
Its a closing reconciliation form. Here's the problem: If they forget to enter 0 in a field that doesn't have any totals, a big ugly error message displays. I would like to avoid this. I can tell them until I am blue in the face to remember to enter 0 and not leave any blank fields, but realistically its going to happen and I need to handle it in the programming.
I have been struggling to either default the values to zero to start with, replace a null textbox with 0 before the calculate runs...but I can't get anything to really work. What is the best way to handle this?
Here is the aspx page:
[Code]....
And the code behind page with working "Calculate" as long as fields are not left blank (I took out all the test code that made it not work at all)
[Code]....
Finally, the error message I am getting is the following:
[Code]....
I can't seem to find the right combination of programming to account for the "" string to be 0 so that it will add or subtract values in my calculate. I have my sql table setup with default values of 0 so if a field is left blank it will be entered into the database as 0 and not null. It is really just for my inserting of a reconciliation and the running of Calculate Totals to double check their work prior to inserting into the database.
Disabling A Textbox Its Value Becoming Null?
Dec 21, 2010when i am disabling a textbox its value becoming null .is there any way to solve this issue
View 1 RepliesTextbox Value Null When Trying To Access It?
Apr 3, 2011namespace Dynamic_Controls.Dropdowndynamic
{
public partial class DropdowndynamicUserControl : UserControl
{
protected void Page_Load(object sender, EventArgs e)
{
if (ControlCount != 0)
[Code]....
VS 2005 Passing Textbox Values To SQL (not Null)?
May 7, 2010Code:
SELECT one, two, three, four FROM tblFixedLine_onenet_callLog WHERE (one LIKE '%' + ISNULL(@one,'') + '%') AND (two LIKE '%' + ISNULL(@two, '') + '%') AND (three LIKE '%' + ISNULL(@three, '') + '%') AND (four LIKE '%' + ISNULL(@four, '') + '%') ORDER BY one, two, three, four
@one, @two, @three and @four are textboxes on my ASP.NET page all of which by default have no value(therefore i assumed NULL).If i test the SQL in the VS2005 SQL Configuration (and put the values in manually) it works but the ASP page returns no results... i assume therefore the Textbox value is "" not Null.
ADO.NET :: Insert Null Into Datetime Filed In Sql From Textbox?
Feb 16, 2011I have a calendar control that sits inside a gridview and when i insert into the sql db it inserts the defaults of 111900, how can i insert Null instead of the default date.
Protected Sub lnkSubmitDental_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles lnkSubmitDental.Click
Dim userlogon As String = Split(Current.User.Identity.Name, "")(1)
[code]...
Forms Data Controls :: Listview Toggle Visibility Of A Textbox Based On Data Not Null?
Sep 3, 2010I want to toggle a Textbox to be visible (true, false) contained within an InsertItemTemplate based on the data being Null/Empty.
It Works in the Item Template since it is calling the "select parameters", but once it is in the "insert parameters" on databinds, I am unable to get this to work.
<%# String.IsNullOrEmpty(Convert.ToString(Eval("qu_8")))?Convert.ToBoolean("false"):Convert.ToBoolean("true") %>
(works in Item Templates, but not in InsertItemTemplate to toggle a textbox to be visible or not visible). I am using C# in code behind.
Forms Data Controls :: Prevent Displaying " " On The Textbox Control If The GridView Columns Is Null?
Apr 7, 2010How to prevent displaying this " " on the textbox control if the GridView columns is Null?
View 2 RepliesSql Server - Textbox Control Doesn't Return NULL When It Is Empty
Mar 16, 2010In reference to this question that I just asked, [URL] it appears that for some reason, an empty text box's value is not being fed to SQL Server as NULL, as it ought to be.
View 6 RepliesC# - Gridview FooterRow Textbox Text Is Null When Accessing From Code Behind
Oct 27, 2010I have a GridView with the following columns
<asp:TemplateField HeaderText="Name">
<FooterTemplate>
<asp:TextBox ID="txt_Name" runat="server"></asp:TextBox>
</FooterTemplate>
<ItemTemplate>
<asp:Label ID="lbl_name" runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "t_Name") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt_name" runat="server" Width="100px" Text='<%#DataBinder.Eval(Container.DataItem,"t_Name") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Created By">
<ItemTemplate>
<asp:Label ID="lbl_tabcreatedby" runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "t_CreatedBy") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:CommandField HeaderText="Modify" ShowEditButton="True" />
<asp:CommandField HeaderText="Delete" ShowDeleteButton="True" />
<asp:TemplateField HeaderText="Add a New Name">
<FooterTemplate>
<asp:LinkButton ID="lnkbtn_AddName" runat="server" CommandName="Insert">Add Name</asp:LinkButton>
</FooterTemplate>
</asp:TemplateField>
And then in the Code Behind I am trying to access the txt_Name Textbox as
protected void gv_Name_RowCommand(object sender, GridViewCommandEventArgs e)
{
string t_Name = ((TextBox)(gv_Name.FooterRow.FindControl("txt_Name"))).Text;
// Insert Code
}
But I am getting null in the string t_Name everytime irrespective of what is the current Text of txt_Name.
However I can get the text if I disable the ViewState for the page.
DataSource Controls :: How To Convert Empty Textbox Text To Null On SqlCommand
Mar 22, 2010How would I convert an empty textbox.text to null when updating/inserting using an SqlCommand? I've got this to populate the textbox:
If IsDBNull(dr("data")) Then
TextBox1.Text = ""
Else
TextBox1.Text = dr("data")
End If
Here's the SET of the SqlCommand:
[Code]....
Forms Data Controls :: Displaying A Null Or Empty Cell For A Null Datetime Database Value In Gridview?
Dec 6, 2010I have setup my business object to have a create_date and edit_date members both datetime datatypes. My company want to display the create_date and edit_date fields in a gridview for each transaction. The problem i have is that after insterting a record it will have a valid create_date but no edit_date and when displayed in the gridview it defaults to datetime.minvalue (My default). How on earth do i show an empty field in my gridview for a null datetime field in the database?
I am using similar architecture to the Imar Spaanjaars example of a tiered solution. With a few small tweeks it has worked well for me for ages. I am passing a List<Database> to my object datasource which connects to my gridview.
Web Forms :: Session Variable Is Null When It Shouldn´t Be Null?
Mar 18, 2010I have a problem with a SessionVariable. I will explain what is happening:
1. From the default.aspx I send Session["LoginByAdmin"] = "Dummy"; and then redirect to this page where I have the code below. So the Page_Load sees that this Session["LoginByAdmin"] != null and enter this page. This works fine !
2. In the Page_Load, I later fill a ListBox1 with foldernames.
3. With Button1_Click1, I will now delete the choosen Folder in the ListBox1 wich works fine the first time and the ListBox updates the new existing folders in the ListBox. (I have wrapped this inside an updatepanel)
The problems comes now when I try to delete a choosen folder in the ListBox1 the second time in a row. When I select a Folder in the ListBox1 and now Press Button1, I will be redirected to "Default.aspx". This meens that this code is running: (That meens that Session["LoginByAdmin"] == null and I have not set this to null anywhere. This is my big question how this variable can be = null here?
if (Session["LoginByAdmin"] == null)
Response.Redirect("Default.aspx");
break;
[Code]....
Web Forms :: UpdateParameters.Add Uses The Word NULL Instead Of NULL Value To Sql Db
Jan 5, 2011In my code behind, I have the following code that I want to insert a null value for a parameter. Instead of doing that, it is adding the word "NULL" to my database. What am I doing wrong?
dsRevealedByCR.UpdateParameters.Add("txtGrantor","Null")
Web Forms :: Microsoft JScript Runtime Error On Page - "null" Is Null Or Not An Object
May 17, 2010m getting this error again and again. i m also using the ajax modalpopup extender in my page ..
View 3 RepliesDataSource Controls :: Null Option In Qurery Parameters / Using Query With DropDownList And Textbox Controls?
Dec 18, 2010I have SqlDataSource with a few parameters (code below). If I understand this code correctly if parameter is NULL I should receive all items from the query. It works fine with query editor. But when I try to use this query on my page - with DropDownList and Textbox controls as source of parameters - it doesn't work. I suspect that main reason of problem is value which these controls pass to the query. Instead of NULL this is an empty string. Is it possible to pass NULL value from DropDownList or TextBox to
the SqlDataSource?
[Code]....
[Code]....