Web Forms :: System.FormatException: String Was Not Recognized As A Valid DateTime?

Feb 6, 2011

DateTime startingDate = DateTime.Parse(DDMonth.SelectedValue.ToString());
LbCalendarCurrentMonth.Text = startingDate.ToString("MMMM");

returns the error: System.FormatException: String was not recognized as a valid DateTime.

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System.FormatException: String Was Not Recognized As A Valid DateTime?

Mar 19, 2011

I have two textbox on my asp.net page which are taking dates from calendar control:

On Calendar selection, I am assigning the value of selected have to hidden variable. below is the code:

DateTime dtOne;
dtOne = Convert.ToDateTime(hdnOne.Value.Trim().ToString());
DateTime dtTwo = Convert.ToDateTime(hdnTwo.Value.Trim().ToString());

When keeping breakpoint I get this value for dtOne

9/2/2011 02:03...

It is working fine in pre prod deployed site, but when I copy paste the same deployed code to the production I am getting below error:

System.FormatException: String was not recognized as a valid DateTime.

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Mar 8, 2010

I receive following errormsg: System.Exception: String was not recognized as a valid DateTime.How can I change following code to avoid this?

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Jun 1, 2012

obj.From = DateTime.Parse(txtFrom.Text, ci);

And it will give error String was not recognized as a valid DateTime. How it can be solved..

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Feb 14, 2011

This worked before but NOW it is not working. Really weired.

[Code]....

The second line gives me the error. What's wrong with this

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Nov 9, 2010

while inserting joindt,exitdt to employee table it shows error "String was not recognized as a valid DateTime." help me withthis error.my code:

DateTime creationdt = Convert.ToDateTime(TextBox5.Text + "/" + DropDownList1.SelectedValue + "/" + TextBox6.Text);
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[code]...

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Web Forms :: String Not Recognized As A Valid Datetime?

Jul 15, 2010

i am writing a datetime string to my sql db and i get the above error. code is as follows:

String WCRDate = txt_Date.Text;
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Web Forms :: String Not Recognized As Valid Datetime

Jan 9, 2012

I am using calender extender for 2 textboxes(txtstartdate,txtenddate) and have set the format as "dd/MM/yyyy". At the txtenddate textchanged event i am calculating no of days to diplay in txtduration.text..I am getting format exception like this:

String not recognised as valid datetime..

Where am i going wrong.. My code is as below

private int duration(string startdate, string enddate)
{
DateTime dt1= DateTime.Parse(startdate);
DateTime dt2= DateTime.Parse(enddate);
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[Code] ....

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Web Forms :: Error String Was Not Recognized As Valid Datetime

Apr 8, 2012

DateTime dt = Convert.ToDateTime(txtldate.Text.Trim());  
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Forms Data Controls :: String Was Not Recognized As A Valid DateTime?

May 27, 2010

I am extracting some value from my database table. there is a files haiving datatype dattime. in some recordsthis column has null value, by default.

see my code

lblDonorname.Text = dt.Rows[0]["SubContarctor_Name"].ToString();
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if (dtrequest.ToString()!="")
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DateTime dtrequest1 = Convert.ToDateTime(dt.Rows[0]["Request_Date"].ToString());
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}
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Apr 30, 2010

i have an error is follows..

String was not recognized as a valid DateTime.

i am using three controll for getting date..

dropdownlist1 for getting day..

dropdownlist2 for getting month..

textboxx for year..

the code is..but i cant defined solution..

DateTime dt1 = DateTime.ParseExact(fromString, "MM/dd/yyyy ", fculture, DateTimeStyles.NoCurrentDateDefault);

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Oct 27, 2010

The error points to this line: DateTime tmpDate = Convert.ToDateTime(lblCalendarDate.Text).AddDays(-7);

I know it will be something to do with I have the date as a string in one method and the date as date in another method but I don't know how to rectify this seeing as I'm knew to ASP.Net & C#. Here is the code:

[Code]....

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Jun 30, 2010

I am developing web application using csharp on visual studio 2008. I am loading the data from Microsoft Excel to datagrid. But when I want to check the date in a given column and getting the error
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[Code]....

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Error :String Was Not Recognized As A Valid DateTime?

Nov 16, 2010

What is wrong with it ?

DateTime DT= DateTime.ParseExact("23/11/2010", "dd/MM/yyyy", null);
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23 is day,11 is month 2010 is year.raises error :String was not recognized as a valid DateTime.

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DataSource Controls :: String Was Not Recognized As A Valid DateTime?

May 27, 2010

I am extracting some value from my database table. there is a files haiving datatype dattime. in some recordsthis column has null value, by default.

see my code

lblDonorname.Text = dt.Rows[0]["SubContarctor_Name"].ToString();
string dtrequest = dt.Rows[0]["Request_Date"].ToString();
if (dtrequest.ToString()!="")
{
DateTime dtrequest1 = Convert.ToDateTime(dt.Rows[0]["Request_Date"].ToString());
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}
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Sep 1, 2011

Why I get an error when my time is PM? The MSDN doc says tt works with AM/PM.

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Code:
sDeadlineDtTm = "9/3/2011 1:30PM"
Try
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[Code] ....

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I have a problem in my application. I have deployed application on server. i have a string in dd/mm/yyyy format. to which when i am trying to parse in datetime it is working fine on my server when i am working locally on server. but when i am trying it remotely(client) it is giving exception saying string is not recognized as valid datetime format. This is how i am trying the code.

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I'm using AJAX calendar control in a tabcontainer, The date is being captrued in the following format: "3/11/2010" (MM/DD/YYYY).And on code behind i'm converting the above value to datetime like this, Everytime i'm getting the error "String was not recognized as a valid datetime".Can anyone please help me out fixing this problem..

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I am having trouble formatting the date on a textbox I get the error above if I don't enter the date in MM/DD/YY format in the textbox. I am also using this in a FormView so I can't format it or don't know how to in the code behind so if there is a way to format it in design view that would be preferable. Does anyone have any ideas on how I would do any of this.

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Feb 4, 2010

I want to filter a Gridview by date. I enter the date in a textbox and use FilterExpressions. I keep getting the error message: String was not recognized as a valid DateTime. How can I solve this?

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<cc1:MaskedEditExtender ID="MaskedEditExtender1" runat="server" Mask="9999/99/99 99:99:99" MaskType="DateTime"
TargetControlID="TextBox1" PromptCharacter="_"> </cc1:MaskedEditExtender>
<cc1:MaskedEditValidator ID="MaskedEditValidator1" runat="server" ControlExtender="MaskedEditExtender1"
ControlToValidate="TextBox1" EmptyValueMessage="Date is required" InvalidValueMessage="Date is invalid"
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<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="xxx"
SelectCommand="SELECT * FROM [xx]"
FilterExpression="Date <=#{0}%#">
<FilterParameters>
<asp:ControlParameter ControlID="TextBox1" Name="Date" PropertyName="Text" Type="DateTime" />
</FilterParameters>
</asp:SqlDataSource>

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I would like to know how to format a string date so it can be inserted in a DataTime field in MS SQL 2005 using ASP.NET 3.5 with C#.

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When the form is submitted, I want to join the selected values from the dropdownlist as a string ( say dd/mm/yyyy) and insert that into a datetime field in a database table.

I am using the following code, but I get the error message "String was not recognized as a valid DateTime." when i submit my form.

[Code]....

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