Java script values set into index of asp drop down
Question
I have asp.net drop down list but I want to load previous classic asp page value into index of the drop down list using Java script.
I can able to take the previous page value with use of Java script.but I am unable set into asp drop down index when page is loaded. Drop down list showing only data from data base not from Java script value.
Protected void page_load()
{
this.BindCountrydropdown();
}
Protected void BindCountrydropdown()
{
/*I have written stored procedure to load values using Data adapter and data table*/
this.ddlCountry.DataTextField=“Countryname”;
this.ddlCountry.DataValueField=“CoubtryID”;
this.ddlCountry.Databind();
}
In .aspx page. Java script:
<script>
function loadpreviouspagevalues()
{
document.getElementById(“ddlCountry”).value=window.opener.parent.document.getElementById(“CountryName”).value;
}
</script>
<body onload =“ loadpreviouspagevalues()”>
<asp:DropDownList ID=“ddlCountry” runat =“server”> </asp:DropDownList>
...
Country name should loaded into ddlCountry index values.
1 answers
solution1
0 2022-07-29 08:50:08
First of all, there are multiple errors just in your javascript function.
function loadpreviouspagevalues(){
document // should not be a capital "D"
.getElementById // No Extra "." should go after this
("ddlCountry").value = window.opener.parent.document.getElementById("CountryName").value;
// I am also skeptical about the inverted commas that you have used here. These are not surely correct
}
Change these and test. Also, when dealing with JavaScript, it is crucial to check browser console to see if any error is there and resolve it accordingly.
I see, you are fetching the value from another page, I would suggest you first validate if the value is properly being returned or not. If it is, then there is the syntactical issue that you need to fix in JavaScript.
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