I'm stuck getting a value from a textbox in code behind. I have tried
Code:
string s2 = txtEmployeeNr.Text;
and
Code:
string s1 = Server.HtmlEncode(txtEmployeeNr.Text);
And just get an empty string.
I have used the last one before with good results.
I have this code, how will I write the code so I can check if a textbox i empty? This way want work. Now it goes in if cellPhone != null all the time.
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i have textbox whose value converted to Int32. while passing value to database when textbox is blank it gives error as Input string was not in a correct format.
my code is
cmb.Parameters.Add("@rate", SqlDbType.Int).Value = Convert.ToInt32(txtGenRate.Text)
what should i do?
If I have JSON like this and pass it to the engine I am using to create a PDF file, the word "null" appears on the PDF. This isn't really my example, but I googled "json replace null empty string" and this was a hit, which is a good representation of my data, also:
{
"relationship": {
"type": "relationship",
"id": null,
"followed_id": null
}
}
We use a rendering engine that creates a PDF from a fixed template and variable data in the form of a json string. But our customers don't want to read that the id is "null", they want to read that the id is blank. In my C# program, the json is just a string, so I can easily do something like this:
jsonString = jsonString.Replace("null,", ",");but the issue is I can't replace null-comma with a comma, because then it's invalid json.
how to I make the rendering engine *and* my customer both happy?
How can I replace empty space in textbox with a dash (-) before form values are inserted?
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I also tried using the datasource's Inserting method but neither works.
I am building a Web Content form in which the user enters some data in asp:TextBoxes, and presses submit to store the data in the database.
I am using an Upadate Panel, in which I have put the afore mentioned asp:TextBoxes. Is there a way to set TextBox.Text = string.Empty after the submit?
Note that I have implemented code, which sets my TextBox.Text = string.Empty in my aspx.cs file, which of course does not work since I am using the update panel with an AsyncPostBackTrigger...
I have a gridview with two bound fields. On clicking a button i want to display the values in first row of gridview in two textboxes. But if gridview cell is empty i am getting the text in textbox to which the value of cell is given as -' 'i know my problem will be solved if i use the template fields instead. But i want a solution while maintaining the bound fields ,if any.
View 2 RepliesI'm trying to update a db record via a business object, based on a users input.
In my button event handler, I check for a null or empty value like this before I set the object properties:
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But if the textbox is empty, I get the "System.FormatException:
Input string was not in a correct format." in the line:
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How can this be?
Code:
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I have two textboxes,Suppose I leave the textbox1 empty & press the button,Then alert is there enter value in Textbox1,When the user press ok,Focus is set to dat textbox,I want also to change the backcolor of dat textbox--I think so it is simple,Now when i enter the values in First textbox & press tab to move to second textbox,I wnat the first textbox color to be changed to white.
I;m trying to get a value from the gridview to a text box... but it always turns out blank... but on the webpage it shows there is a data.
TotalNonCashToPay = CDbl(GridView1.Rows(ii).Cells(16).Text)
this is my full code
vb Code: .....
I have a FileUpload control inside of an update panel that I would like to use to do async file uploads. The issue I am having is that during the partial post back, the FileUpload control is empty. I was under the impression that through an update panel doing the full page life cycle that it would pick up the use input.Am I incorrect here? Can this somehow be done or do I need to do the traditional full page post back to get this to work?
View 3 RepliesPossible Duplicate: In C#, should I use string.Empty or String.Empty or “” ? just don't understand the benefits of using String.Empty over "". Aside it being strongly typed its longer.
View 2 RepliesI have a string "10/15/2010" I want to split this string into 10, 15, 2010 using c#, in VS 2010. i am not sure how to do this.
View 9 RepliesI have a textbox where email addresses are displayed at the click of a button. There is one problem, before the first email address there are two empty spaces. Is there any way of getting rid of them? The result looks like this: " emailaddress; emailaddress; emailaddress;"
Here's my button click:
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With script below, request to the server always sends empty string (even if value is not emtpty), where the data line is:
data: "{ 'folderName': '" + $(this).val() + "' }"
The html element under investigation is this:
<asp:TextBox id="searcher" runat="server" ClientIDMode="Static" CssClass="classificationFolder" />
Script is:
<script type="text/javascript">
$(document).ready(function () {
$(".classificationFolder").each(function () {
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The reason that I select elements by css class selector ($(".classificationFolder")) is that, this control is a user control and used in the same page more than once. That is why I'm not using $("#searcher").
I tested the code In IE8 and Chrome 8.0.552.28 beta. This issue is arising in both of the browsers.
On the other hand, request is sent to the server, client received response successfuly and response is processed on the client.
Is there any way to use a validator that shows an error mesagge, if the user leaves a textbox blank (empty string)? Note: in this case I can use RequiredFieldValidator, because the control I want to check for empty string is on a modalpopup (which is not visible most of the time) and the RequiredFieldValidator then blocks the Buttons on the rest of the (visible) page.
View 1 RepliesThis doesn't work. I've got an exception from SQL databse that column does not allow nulls.
<asp:SqlDataSource ID="MyDataSOurcet" runat="server"
ConnectionString="<%$ ConnectionStrings:MyConnectionString %>"
InsertCommand="INSERT INTO MyTable(Name) VALUES (@Name) WHERE NameID = 1"
<InsertParameters>
<asp:Parameter Name="Name" Type="String" DefaultValue=""/>
</InsertParameters>
</asp:SqlDataSource>
I define the datasource in my c# code and I have a submit button which takes the value of the radiobuttonlist
asp:RadioButtonList ID="RadioPaidIdList" runat="server" DataValueField ="Label" DataTextField = "Label"
First time i click submit it returns an empty value. And next time i select a radiolist and click submit it returns a proper value.
I have string. There are no items to show in this view of the "Personal Documents" then assign to string str variable string str ="There are no items to show in this view of the "Personal Documents" library" Now planning to replace "" and make it to actual string to str object. I tried below, but did not worked
str = str.Replace(@"",string.Empty);
I want str value should be string str ="There are no items to show in this view of the "Personal Documents" library" I need to find this string in another string. While searching into that string. I couldn't found because str contains "".
Is there any way that can I set default value as Empty.string in Model.
I have a column Name in the Model its not null field in the database with default value is Empty.string
is there any way that I can set this default property in the Model for this column?
This is completely frustrating and probably embarrassing as well. A while back I posted a similar question and resolved the issue. [URL]...scope_identity The program has been working ever since, until yesterday when as it turns out SCOPE_IDENTITY() started returning an empty string even though a record is being inserted. I am not sure what has changed since the fateful day.
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I am hoping that there is something I am just not seeing here. A lot of the information I have seen thus far indicates that there are problems with SCOPE_IDENTITY() but most of those are related to inserting multiple records. As you can see this should be fairly straight forward. The thing that really has got my goat is that it used to work and now it doesn't. If someone could take a look at the above code and comment on any anomalies it would be great. Also I have heard suggestions for switching to ADO.NET and it is beginning to look a lot more attractive every day. But I have a ways to go before making the switch so it is SqlDataSources for now
How to Convert empty string to Null value - Insert into a DB
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I have pass following SQL Query to the through ObjectDataSource
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And I am passing parameter through QueryString and My idea is like when empty string is pass it should show me all records but when I am passing empty string ObjectDataSource is making NULL and I am not getting desire result
For coonverting Linq to DataTable I am using the following Extension Method(Taken from Stackoverflow)
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The Extension Method creates XML file.But for null values no element is created in XML file.Say if Commission field is null then commission element is missing in Xml generation.
I want to insert element with empty string for null values (ref type) and (0.00) for decimals and (0) for integers. where do i need to make change?
I have a page that lists products from a table based on the querystring. So if I say foo.aspx?fam=1 all the products from family 1 will be listed. How can I make my code list all the values if query string is empty? My SQL command would have to be different...can't really see how I can do this.
<asp:SqlDataSource ID="ds_produtos" runat="server"
ConnectionString="<%$ ConnectionStrings:LocalSqlServer2 %>"
SelectCommand="SELECT DISTINCT [IdProduct], [Name], [Description], [IdFamily], [Price], [Stock] FROM [Product] WHERE ([IdFamily] = @IdFamily )">
<SelectParameters>
<asp:QueryStringParameter Name="IdFamily" QueryStringField="fam" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>